「portable」を含む日記 RSS

はてなキーワード: portableとは

2018-10-17

増田プログラマー養成講座 その6 OOPの種類、PHPの準備

前回は、オブジェクト説明をした。

今回は、オブジェクトの使い方=オブジェクト指向プログラミングOOP)を学ぼう。

 

OOPの種類

オブジェクト指向プログラミングには、

  1. クラスベースJavaC++など)
  2. プロトタイプベースJavaScript、Ioなど)

などの分類があります

ここではクラスベースOOPを取り上げる。学習時間を短縮するために、Javaよりも簡単PHPOOPの基本を勉強してみよう。

 

PHPとは?

PHP (プログラミング言語) - Webページ作成のために用いられることの多い汎用プログラミング言語一種

PHPは誰でも手軽に使えるように工夫された、軽量なプログラム言語です。

 

PHPの準備

WindowsパソコンPHPを使うために、XAMPPというソフト無料)をインストールしよう。

 

XAMPPはいくつかバージョンがあるけど、ここではUSBメモリに保存できる「ポータブル」を使ってみよう。

↑このページにある「xampp-portable-win32-7.2.10-0-VC15.zip」をダウンロードして、ZIPファイルを展開します。

解凍して出てきた「xampp」をCドライブ直下コピーしてください。

これでPHPの実行環境XAMPP)の準備は完了です。

 

XAMPPの起動

Port(s)が「80,443」と表示されたら、XAMPP上のApacheWebサーバーソフト)が起動して、PHPが使える状態になってます

Apacheを止めるときは、「Stop」ボタンクリックします。)

 

PHPスクリプト作成

phpとは - はてなキーワード http://d.hatena.ne.jp/keyword/php

↓こんなかんじのサンプルコードがあるよね。

<?php

print("Hello, world!");

?>

プログラムソースコード増田に直接書くと、エスケープされて違う文字になるので、上の例では一部文字を置き換えてある。)

上記の表示の中で、全角文字の不等号「<」「>」を半角文字の不等号に置き換えて下さい。)

増田プログラムコード貼付けられないのか。不便だな!)

以上で、PHPプログラミングの準備と動作確認ができた。

 

PHPの基本文法

PHPの教材は、本やネット上の記事動画などたくさんある。自分で分かりやすものを探して読んでみよう。

ここではドットインストールPHP入門を参考にしてみよう。

 

3分程度の動画が30個=90分。最初は内容を理解できなくてもいいから、とりあえず全部一通り見てみよう。(1巡目は雰囲気だけつかめOK

 

「つまづきノート」の作成

2巡目以降は分からないことがあったらノート等にメモして、後で1つずつ解明していこう。

著者あとがき

 

私はGitを学ぶのに、実はとても苦労しました。それと同時に、「きっと同じように困っている人が他にもたくさんいるはずだ」と考えました。「理解するのに数日かかることを、短い時間でパパッと学べるコンテンツを作りたい」そう思いつき、「マンガでわかるGit 第1話」個人サイトにて公開したところ、いきなり、はてなブックマークで800ブックマークされました。

 

“つまづきポイント”を先回りするために

私は、Gitを使い始めて以降、わからないことがあったら「つまづいたこノート」に書いてきました。なお、本書の執筆にあたっても、日々勉強しながら解説を書くという形でした。わかばちゃんが「なんでこうなるの?」と疑問に思う部分は、私が過去につまづいた部分です。

 

ドットインストール PHP入門
(1) PHP利用の準備

 

(2) 構造プログラミングの基礎知識

 

(3) オブジェクト指向プログラミングの基礎知識

 

(4) その他、Webサイト作成一般的知識

 

(今回は、PHPの準備、PHPの基本文法理解までで終わってしまったorz

URLリンク10個以上貼ると、日記が書き込めないみたいなので、増田では記事を分割せざるを得ない。)

次回は、OOP関係している内容(#18~#24)を一緒に確認してみよう。

 


anond:20181015215004 未経験からプログラマーなんだが全然からない

anond:20181016015826 増田プログラマー養成講座 その1 パソコンの用意

anond:20181016164341 増田プログラマー養成講座 その2 プログラムデータ+処理、プログラム言語の種類

anond:20181016180059 増田プログラマー養成講座 その3 構造プログラミングの基本(順次、反復、分岐

anond:20181016193144 増田プログラマー養成講座 その4 子ども向け教材「Scratch」で構造プログラミング練習

anond:20181017161003 増田プログラマー養成講座 その5 オブジェクトとは何か?

anond:20181017191404 増田プログラマー養成講座 その6 OOPの種類、PHPの準備 ←★今ここ★

anond:20181019181549 増田プログラマー養成講座 その7 OOPの仕組み(前半)

anond:20181020230044 増田プログラマー養成講座 その8 OOPの仕組み(後半)

anond:20181022232327 増田プログラマー養成講座 その9 MVCフレームワークを使ってみよう

anond:20181023184616 増田プログラマー養成講座 その10 OOP参考書

anond:20181024214737 増田プログラマー養成講座 コンテンツ一覧

2018-03-22

おれめも

\ 2,000 Webカメラ (最低 480p/30fps) ベストセラーhttps://www.amazon.co.jp/dp/B003YUB66A/

\ 0 Photoshop もしくはレイヤー分解されたpsdファイルを吐ける同等のソフトウェア

\ 1,480 FaceRig http://store.steampowered.com/app/274920/FaceRig/

\ 398 FaceRig Live2D Module http://store.steampowered.com/app/420680/FaceRig_Live2D_Module/

上記FaceRig モジュール対応Live2D Cubism 2.1 までなので、Cubism 3 には手を出さずに旧製品を使うとよい、らしい。

http://www.live2d.com/ja/download

\ 0 Live2D Cubism Editor 2 Free http://www.live2d.com/ja/download/cubism2-pro-free-comparison

\ 0 Live2D Viewer http://sites.cybernoids.jp/cubism2/tools/live2d-viewer

以下参考

\ 0 Live2D Cubism 3 Editor Free版 http://www.live2d.com/ja/products/cubism3

Cubism 2.1モデルファイルへの書き出し は Pro のみなので、おそらくこちらは選ばないほうがよい。 http://www.live2d.com/ja/download/cubism3-pro-free-comparison

Cubism 3 に対応するViewerは Portable Viewer ? http://cubism3.live2d.com.s3.amazonaws.com/tools/portableviewer/download.html

・画を描く能力

・画を分解する能力

・画をマッピングする根性

時間

2017-11-22

Webサイト制作日記 ファイル転送ソフトの準備

WebサーバーSSH接続してファイル転送するソフトとして「WinSCP」を使ってみます

https://ja.wikipedia.org/wiki/WinSCP

 

ダウンロード

WinSCPインストールするときWindowsレジストリ情報を汚したくないのでPortable版を使います

https://winscp.net/eng/download.php

Portable executables (7.2MB)」をクリックすると、本日は「WinSCP-5.11.2-Portable.zip」がダウンロードされました。

このzipファイルを展開します。(メニュー英語になってますがこのままでも使えます。)

 

WinSCP日本語化

WinSCP日本語化キットをダウンロードします。

https://winscp.net/eng/translations.php

このページで「Japanese jp」の行の[Download]をクリックします。

ダウンロードされた「jp.zip」を展開します。

展開して出てきた「WinSCP.jp」というファイルを「WinSCP.exe」があるフォルダコピーします。

それからWinSCP.exe」をクリックすると、WinSCPが起動してメニュー日本語化されていることが確認できます

 

これでファイル転送ソフトの準備ができました。

2016-10-28

[][]魔界戦記ディスガイア2 PORTABLE アクターレ編

ディスガイア1をクリア後、エトナ編やりたかったけどラハールしかレベリングしてなかったから2周目扱いのエトナ編やるのがすげーめんどくてやめた反省いかして、ディスガイア2はアクターレ編から始めた

あっさり終わったしキャラお話もそれなりで大正解だった

でも最後らへんはそこそこ苦労して困ったな―って思ったら裏面で武器稼ぎがデキたかめっちゃ楽になった

その武器引き継いでアデル編(弱)を始められるという公式チートもできるしマジ最高

ピンクボールを4つ足でころころ転がすドット絵めっちゃ可愛すぎた

アクターレの母ちゃん若杉だろ・・・

アデル編始めたけど声グリリバかよ・・・合わねー・・・

2016-10-24

[]魔界戦記ディスガイアPORTABLE通信対戦はじめました

DL版をvitaプレイ

気をつけてたのについ1回だけ味方殺ししちゃってありがちなBエンド(ラハールがプリニーになってもどってくるやつ

通信対戦~がついてないのをPSPで一度プレイしたことある

そんときは確かラスダンあたりで詰まって(敵が倒せなく鳴って)EDまで見れなかった

#広く浅く育て過ぎてまともに強いやつがいなかった

効率のいいレベル上げもラストになった今更やる気にならなかった

今回はラハール一本に絞ってレベリングたからよゆーだった

モブを一人も作ってないか回復ちょっとめんどかったけど

経験値UPも早い段階でMAXにしといたから、一周目でちょこっとレベリングするだけでラハール200くらいあったし

最初EXP増加屋6とか8のアイテム界にもぐってたけど、あまりにも効率悪くてだるくなったから先にストーリー進めたら1回で100とかとれるうはうはハンド界があって超便利だった

クリアセーブを念のため別ファイルセーブしてからエトナ編はじめたけど、ラハールの装備が全部自動的に外れてなくてラハールが持ったままになっちゃってて、いい装備とかまったくない状態+エトナレベル35とかこりゃ無理だと思ってもっかいクリア前のデータからエトナ育てて・・・ってやろうかと思ったけどめんどくなったからやめた

まず剣の熟練度上げるためにWMうpアイテム界にもぐりまくった後にエトナの剣のWMあげてヴァルギプスにこもってレベリングとかだるすぎると思って

エトナ編はyoutube動画探して見よう

他のEDは全部テキストで見た

ディスガイアやりこみばっか話題になるけど、きゃらも ストーリーもいいよなあって改めて思った

youtubeコメントで、ディスガイア小学生ときにやって泣いたってコメントあって、おいおい俺なんかまずPS2が出たのが中3なんだがって思ったりした

ざっくり10個年下って感じだよなあ・・・すげーわ

でもこれ小学生ときやったらおもしれーだろーなーとは思う

難易度ストーリーもすごく向いてると思うもん

世間擦れした大人がやってもはいはいこういうのねって思っちゃうところも、子ども純粋感性でやれば絶対しかったと思う

エトナがエロ可愛くてすごくよかった

あとムチムチのドット絵エロかった

ヴァンパイアのあの猫っぽいキャラの敵ドット

とりあえず1は1周したか一休

今度は、2のアクターレ編(1でいうエトナ編な外伝)を最初からはじめた

やっぱり弱いときにひーひー言いながらいろいろ工夫するのが一番楽しい

育て上げたので俺TUEEするのも楽しいけど、やっぱり食べ物と同じで、いくらおいしくても最初の数口のときめきはその後の惰性で口に運んだ時のそれとは比べ物にならないんだよなあ

艦これで2-4くらいまでが一番楽しかったのも同じ感じだった

とりあえずアクターレ編(弱)を軽くクリアして本編に入ろうと思う

以前1をラスト挫折して2の本編はじめたときはなんかすぐ飽きてやめちゃったけど、アクターレ編から入ったら1から続けてやっても楽しめそうな感じしてる

2016-07-19

憂鬱連休明け

STGサントラでも聴いてテンションを上げて出勤。

くっそ今週もめんどくさいが、

仕事やっつけてしまおう!

今日デトックスシューティングPSPSTAR STRIKE PORTABLE

パターン化できないしアドリブ力が試されるわ!

己の腕を信じるのよ!

すいすいすいようび

今日も頑張ろう!

って月曜日だと思ったら

きょう火曜日だったわ!

ややこしいわ!!!

2016-01-14

ミニマムゲームがしたい

いまもうRPGとか時間が無くて仕組みもややこしくやってないんだけど

なんかもうちょっと小規模で完結した感じのコンパクトゲームってないの?

規模がでかすぎてマップも広すぎて

遊ぶのが大変。

かといって、パズルも苦手なんだよね。

コンパクトな規模で短時間でやり応えのあるゲームってないのかな。

もうさ、PSPスターソルジャー

2分や5分タイムアタックばっかりやってますよ。

通しで1ステージからやっても、

時間で済むし結構ゲームやった感の燃えた感じがするんだよね

追記

ちなみに、最近自分がよくやってるゲーム

GB ゲームボーイウォーズTURBO(最終面Z戦車スーパーミサイル配置済みでクリアできないw)

GB カーブノア

PSP ダライアスバースト特にミッションモードはいいね

PSP STAR STRIKE PORTABLEエンドレスモードいいね

PSP スターソルジャー

PSP グラディウスポータブル(グラIIIをよくする、ムズいのでビギナー3ステージエンドw)

こんなもののローテーションで遊んでるw

最後遊んだRPGといえばPSPイース7かな。これは物語世界が狭いのでまだ楽チンw

2012-01-05

Types of digital cameras

Digital cameras are made in a wide range of sizes, prices and capabilities. The majority are camera phones, operated as a mobile application through the cellphone menu. Professional photographers and many amateurs use larger, more expensive digital single-lens reflex cameras (DSLR) for their greater versatility. Between these extremes lie digital compact cameras and bridge digital cameras that "bridge" the gap between amateur and professional cameras. Specialized cameras including multispectral imaging equipment and astrographs continue to serve the scientific, military, medical and other special purposes for which digital photography was invented.

[edit]Compact digital cameras

Subcompact with lens assembly retracted

Compact cameras are designed to be tiny and portable and are particularly suitable for casual and "snapshot" uses. Hence, they are also called point-and-shoot cameras. The smallest, generally less than 20 mm thick, are described as subcompacts or "ultra-compacts" and some are nearly credit card size.[2]

Most, apart from ruggedized or water-resistant models, incorporate a retractable lens assembly allowing a thin camera to have a moderately long focal length and thus fully exploit an image sensor larger than that on a camera phone, and a mechanized lens cap to cover the lens when retracted. The retracted and capped lens is protected from keys, coins and other hard objects, thus making it a thin, pocketable package. Subcompacts commonly have one lug and a short wrist strap which aids extraction from a pocket, while thicker compacts may have two lugs for attaching a neck strap.

Compact cameras are usually designed to be easy to use, sacrificing advanced features and picture quality for compactness and simplicity; images can usually only be stored using lossy compression (JPEG). Most have a built-in flash usually of low power, sufficient for nearby subjects. Live preview is almost always used to frame the photo. Most have limited motion picture capability. Compacts often have macro capability and zoom lenses but the zoom range is usually less than for bridge and DSLR cameras. Generally a contrast-detect autofocus system, using the image data from the live preview feed of the main imager, focuses the lens.

Typically, these cameras incorporate a nearly silent leaf shutter into their lenses.

For lower cost and smaller size, these cameras typically use image sensors with a diagonal of approximately 6 mm, corresponding to a crop factor around 6. This gives them weaker low-light performance, greater depth of field, generally closer focusing ability, and smaller components than cameras using larger sensors.

Starting in 2011, some compact digital cameras can take 3D still photos. These 3D compact stereo cameras can capture 3D panoramic photos for play back on a 3D TV.[3] Some of these are rugged and waterproof, and some have GPS, compass, barometer and altimeter. [4]

[edit]Bridge cameras

Sony DSC-H2

Main article: Bridge camera

Bridge are higher-end digital cameras that physically and ergonomically resemble DSLRs and share with them some advanced features, but share with compacts the use of a fixed lens and a small sensor. Like compacts, most use live preview to frame the image. Their autofocus uses the same contrast-detect mechanism, but many bridge cameras have a manual focus mode, in some cases using a separate focus ring, for greater control. They originally "bridged" the gap between affordable point-and-shoot cameras and the then unaffordable earlier digital SLRs.

Due to the combination of big physical size but a small sensor, many of these cameras have very highly specified lenses with large zoom range and fast aperture, partially compensating for the inability to change lenses. On some, the lens qualifies as superzoom. To compensate for the lesser sensitivity of their small sensors, these cameras almost always include an image stabilization system to enable longer handheld exposures.

These cameras are sometimes marketed as and confused with digital SLR cameras since the appearance is similar. Bridge cameras lack the reflex viewing system of DSLRs, are usually fitted with fixed (non-interchangeable) lenses (although some have a lens thread to attach accessory wide-angle or telephoto converters), and can usually take movies with sound. The scene is composed by viewing either the liquid crystal display or the electronic viewfinder (EVF). Most have a longer shutter lag than a true dSLR, but they are capable of good image quality (with sufficient light) while being more compact and lighter than DSLRs. High-end models of this type have comparable resolutions to low and mid-range DSLRs. Many of these cameras can store images in a Raw image format, or processed and JPEG compressed, or both. The majority have a built-in flash similar to those found in DSLRs.

In bright sun, the quality difference between a good compact camera and a digital SLR is minimal but bridgecams are more portable, cost less and have a similar zoom ability to dSLR. Thus a Bridge camera may better suit outdoor daytime activities, except when seeking professional-quality photos.[5]

In low light conditions and/or at ISO equivalents above 800, most bridge cameras (or megazooms) lack in image quality when compared to even entry level DSLRs. However, they do have one major advantage: their much larger depth of field due to the small sensor as compared to a DSLR, allowing larger apertures with shorter exposure times.

A 3D Photo Mode was introduced in 2011, whereby the camera automatically takes a second image from a slightly different perspective and provides a standard .MPO file for stereo display. [6]

[edit]Mirrorless interchangeable-lens camera

Main article: Mirrorless interchangeable-lens camera

In late 2008, a new type of camera emerged, combining the larger sensors and interchangeable lenses of DSLRs with the live-preview viewing system of compact cameras, either through an electronic viewfinder or on the rear LCD. These are simpler and more compact than DSLRs due to the removal of the mirror box, and typically emulate the handling and ergonomics of either DSLRs or compacts. The system is used by Micro Four Thirds, borrowing components from the Four Thirds DSLR system.

[edit]Digital single lens reflex cameras

Cutaway of an Olympus E-30 DSLR

Main article: Digital single-lens reflex camera

Digital single-lens reflex cameras (DSLRs) are digital cameras based on film single-lens reflex cameras (SLRs). They take their name from their unique viewing system, in which a mirror reflects light from the lens through a separate optical viewfinder. At the moment of exposure the mirror flips out of the way, making a distinctive "clack" sound and allowing light to fall on the imager.

Since no light reaches the imager during framing, autofocus is accomplished using specialized sensors in the mirror box itself. Most 21st century DSLRs also have a "live view" mode that emulates the live preview system of compact cameras, when selected.

These cameras have much larger sensors than the other types, typically 18 mm to 36 mm on the diagonal (crop factor 2, 1.6, or 1). This gives them superior low-light performance, less depth of field at a given aperture, and a larger size.

They make use of interchangeable lenses; each major DSLR manufacturer also sells a line of lenses specifically intended to be used on their cameras. This allows the user to select a lens designed for the application at hand: wide-angle, telephoto, low-light, etc. So each lens does not require its own shutter, DSLRs use a focal-plane shutter in front of the imager, behind the mirror.

[edit]Digital rangefinders

Main article: Rangefinder camera#Digital rangefinder

A rangefinder is a user-operated optical mechanism to measure subject distance once widely used on film cameras. Most digital cameras measure subject distance automatically using electro-optical techniques, but it is not customary to say that they have a rangefinder.

[edit]Line-scan camera systems

A line-scan camera is a camera device containing a line-scan image sensor chip, and a focusing mechanism. These cameras are almost solely used in industrial settings to capture an image of a constant stream of moving material. Unlike video cameras, line-scan cameras use a single row of pixel sensors, instead of a matrix of them. Data coming from the line-scan camera has a frequency, where the camera scans a line, waits, and repeats. The data coming from the line-scan camera is commonly processed by a computer, to collect the one-dimensional line data and to create a two-dimensional image. The collected two-dimensional image data is then processed by image-processing methods for industrial purposes.

Further information: Rotating line camera

[edit]Integration

Many devices include digital cameras built into or integrated into them. For example, mobile phones often include digital cameras; those that do are known as camera phones. Other small electronic devices (especially those used for communication) such as PDAs, laptops and BlackBerry devices often contain an integral digital camera, and most 21st century camcorders can also make still pictures.

Due to the limited storage capacity and general emphasis on convenience rather than image quality, almost all these integrated or converged devices store images in the lossy but compact JPEG file format.

Mobile phones incorporating digital cameras were introduced in Japan in 2001 by J-Phone. In 2003 camera phones outsold stand-alone digital cameras, and in 2006 they outsold all film-based cameras and digital cameras combined. These camera phones reached a billion devices sold in only five years, and by 2007 more than half of the installed base of all mobile phones were camera phones. Sales of separate cameras peaked in 2008. [7]

Integrated cameras tend to be at the very lowest end of the scale of digital cameras in technical specifications, such as resolution, optical quality, and ability to use accessories. With rapid development, however, the gap between mainstream compact digital cameras and camera phones is closing, and high-end camera phones are competitive with low-end stand-alone digital cameras of the same generation.

[edit]Waterproof

A Canon WP-1 waterproof 35 mm film camera

Waterproof digital cameras are digital cameras that can make pictures underwater. Waterproof housings have long been made but they cost almost as the cameras. Many waterproof digital cameras are shockproof and resistant to low temperatures; one of them is Canon PowerShot D10, one of the first underwater digital cameras.

These cameras become very popular during the holiday season, because many people want to save the best moments from their holidays at the seaside. Waterproof watches and mobile phones were produced earlier. Most makers of digital cameras also produce waterproof ones and every year they launch at least one new model, for example Sony, Olympus, Canon, Fuji.

Healthways Mako Shark, an early waterproof camera,[8] was launched in 1958 and cost around 25 dollars. It was a huge camera and pictures were black and white.

___________________________

http://www.gobatteryonline.com/canon-nb-9l-digital-camera-battery-gose.html

http://www.gobatteryonline.com/canon-lp-e5-digital-camera-battery-gose.html

http://www.gobatteryonline.com/canon-powershot-sd500-battery-charger-gose.html

2011-12-29

Portable electronic equipment battery technology

1, about the trickle charge, rapid charging and stable battery charging algorithm

According to the energy requirements of the final application, a battery may contain up to 4 lithium ion or lithium polymer battery core, its configuration will have a variety of change, at the same time with a mainstream power adapter: direct adapter, USB interface or car charger. Remove the core quantity, core configuration or power adapter type difference, the battery has the same charge characteristics. So they charge algorithm. Lithium ion and li-ion polymer battery best charging algorithm can divided into three phases: trickle charge, rapid charging and stable charge.

trickle charge. For depth discharge core to charge. When core voltage in less than about 2.8 V, use a constant 0.1 C of the current charging for it.

fast charging. Core voltage trickle charge more than the threshold, improve the charging current rapid charging. Fast charging current should be lower than 1.0 C.

stable voltage. In the fast charging process, once the core 4.2 V voltage, stable voltage phase began. This is through the minimum charge current or timer or of the two joint to interrupt charge. When the minimum current below about 0.07 C, can interrupt charge. The timer is to rely on a default to trigger the timer interrupt.

Advanced battery charger with additional security function normally. For example, if the core temperature exceeds the given window, usually 0 ℃-45 ℃, charge will be suspended.

Remove some very low-end equipment, now on the market/li-ion polymer lithium ion battery solutions are integrated with the outer components or, in accordance with the characteristics of the charging to charge, this is not just to get better effect charge, but also for safety.

lithium ion/polymer battery charge is an example of applications-double input 1.2 A lithium battery charger LTC4097

LTC4097 can be used to exchange adapter or USB power supply for single quarter/polymer lithium ion battery. Figure 1 for double input 1.2 A lithium battery charger LTC4097 schemes. It USES constant current/constant voltage algorithm charging, from exchange adapter power charge, programmable filling up to 1.2 electric current A, and with USB power can be as high as 1 A, at the same time, automatic detection in each input voltage whether there. This device also provide USB the current limit. Applications include PDA, MP3 players, digital camera, light portable medical and test equipment and big color cellular phone. The performance characteristics: no external micro controller charging termination; The input power automatic detection and choice; Through the resistance from the exchange of charging adapter input can be as high as 1.2 A programming charge current; The resistance of programmable USB charging current is up to 1 A; 100% or 20% USB charging current set; The input power output and existing bias NTC (VNTC) pin as a 120 mA drive ability; NTC thermistors input (NTC) pin for temperature qualified charged; Pre-settings battery voltage with floating plus or minus 0.6% accuracy; Thermal regulation maximize charge rate and free hot air LTC4097 can be used to exchange adapter or USB power supply for single quarter/polymer lithium ion battery. The use of constant current/constant voltage algorithm charging, from exchange adapter power charge, programmable filling up to 1.2 electric current A, and with USB power can be as high as 1 A, at the same time, automatic detection in each input voltage whether there. This device also provide USB the current limit. Applications include PDA, MP3 players, digital camera, light portable medical and test equipment and big color cellular phone.

2, lithium ion/polymer battery scheme

Lithium ion/polymer battery charge scheme for different number of core, core configuration, and power types are different. At present mainly have three main charging scheme: linear, Buck (step-down) switch and SEPIC (booster and step-down) switch.

2.1 linear scheme

When the input voltage in big with the charger with sufficient clearance of core after opening voltage, it is linear scheme, especially 1.0 C fast charging current than 1 A big too much. For example, MP3 players usually only one core, capacity from 700 to 1500 mAh differ, full charge voltage is open 4.2 V. MP3 player power is usually the AC/DC adapter or USB interface, the output is the rule of 5 V; At this time, the linear scheme is the most simple, most charger of the efficiency of the scheme. Figure 2 shows for lithium ion/polymer battery solution linear scheme, basic structure and linear voltage neat device.

linear scheme charger application examples-double input Li + charger and intelligent power source selector MAX8677A

MAX8677A is double input USB/AC adapter linear charger, built-in Smart Power Selector, used for rechargeable single quarter by Li + batteries portable devices. The charger integration of the battery and the external power source and load switch charging all the power switch, so that no external MOSFET. MAX8677A ideal used in portable devices, such as smart phones, PDA, portable media players, GPS navigation equipment, digital camera, and digital cameras.

MAX8677A can work in independent USB and the power input AC adapter or two input either one of the input. When connecting external power supply, intelligent power source selector allows the system not connect battery or can and depth discharge battery connection. Intelligent power source selector will automatically switch to the battery system load, use the system did not use the input power supply parts for battery, make full use of limited USB and adapter power supply input. All the needed electric current detection circuit, including the integration of the power switch, all integration in the piece. DC input current highest limit can be adjusted to 2 A and DC and USB input all can support 100 mA, 500 mA, and USB hung mode. Charge current can be adjusted to as high as 1.5 A, thus support wide range of battery capacitive. Other features include MAX8677A thermal regulation, over-voltage protection, charging status and fault output, power supply good surveillance, battery thermistors surveillance, and charging timer. MAX8677A using save a space, hot enhanced, 4 mm x 4 mm, 24 of the pins TQFN encapsulation, regulations, work in exceptional temperature range (40 ~ + 85 ℃).

2.2 Buck (step-down) switch scheme

When A 1.0 C of the charging current more than 1 A, or the input voltage of the core than with high voltage open many, Buck or step-down plan is A better choice. For example, based on the hard drive in the PMP, often use single core lithium ion battery, the full of open is 4.2 V voltage, capacity from 1200 to 2400 mAh range. And now PMP is usually use the car kit to charge, its output voltage in a 9 V to 16 between V. In the input voltage and battery voltage is the voltage difference between high (minimum 4.8 V) will make linear scheme lowers efficiency. This kind of low efficiency, plus more than 1.2 A 1 C fast charging electric current, have serious heat dissipation problems. To avoid this kind of situation, will the Buck scheme. Figure 3 for lithium ion/polymer battery charger scheme Buck diagram, basic structure with Buck (step-down) switching voltage regulators completely the same.

2.3 SEPIC (booster and step-down) switch scheme

In some use of three or four lithium ion/polymer core series equipments, charger of the input voltage is not always greater than the battery voltage. For example, laptop computers use 3 core lithium ion battery, full charge voltage is open 12.6 V (4.2 V x3), capacity is 1800 mAh to 3600 mAh from. Power supply input or output voltage is 1 6 V AC/DC adapter, or is car kit, the output voltage in a 9 V to 16 between V. Apparently, the linear and Buck solutions are not for this group of batteries. This is about to use SEPIC scheme, it can in the output voltage is higher than when the battery voltage, can be in the output voltage less than when the battery.

3, and power detection algorithm is proposed

Many portable products use voltage measurements to estimate the remaining battery power, but the battery voltage and surplus power relationship but will with the discharge rate, temperature and battery aging degree of change, make this kind of method can top 50% margin of error. The market for longer to use product demand unceasingly strengthens, so the system design personnel need more accurate solution. Use capacity check plan come to measure battery or consumption of electricity, will be in a wide range of application power to provide more accurate estimate of the battery power.

3.1 power detection algorithm is one of the examples of application, function complete list, double the battery portable battery application design

power detection principle. Good capacity check plan at least to have battery voltage, temperature and battery electric current, measuring method; A micro 9 a; And a set of and the verification of the punishment power detection algorithm is proposed. Bq2650x and bq27x00 is full capacity check program function, with a measuring voltage and temperature of the digital converter (ADC) and a measuring electric current and charging sensor the asp. These capacity check plan also has a microprocessor, is responsible for the implementation of the Texas instruments power detection algorithm is proposed. The algorithm can compensate the lithium ion battery life.low self-discharge, aging, the temperature and discharge rate, and other factors. Chip embedded microprocessor as host system processor save these calculation burden. Capacity check program can provide remaining power state information, bq27x00 series products also offer surplus can Run Time (Run Time to Empty) host may at any Time to capacity check plan these information query, then LED indicator light through or displays will inform the user battery. Capacity check meter is very easy to use, the system processor need only configuration 12 C or HDQ communication drive can.

The battery circuit description. Figure 4 (a) can be used for identification of IC functions with typical application circuit batteries. According to the use of IC testing program is different, the battery needs to have at least three to four outside the terminal.

VCC and BAT pins will even to the battery voltage, so that for, C power and the battery voltage measurement. The battery is connected a grounding resistance smaller detection resistors, let capacity check meter high impedance SRP and SRN input can monitor sensor resistance on both ends of the voltage. Through testing the current flows through a resistor can be used to judge the battery or release the amount of electricity. Designers choose detection resistance value must be considered when resistance on both ends of the voltage can't more than 100 mV, low resistance may be more hours in current errors. Circuit board layout must ensure that SRP and SRN to testing from as close as possible to the connection of the resistor sensor resistance end; In other words, they should be the Kelvin attachment.

HDQ pin need external and resistors, this resistance should be located the host or the main application, such capacity check plan to the battery and portable devices when sleep function enable connection broken. Advice and resistance choose 10 k Ω.

battery identification. A low cost WeiMao batteries are getting more and more serious, these cells may not contain OEM requirements of security protection circuit. So, genuine battery may contain figure 4 (a) shows the appraisal circuit. When to identify the battery, the host to contain IC (bq26150, the function is cyclic redundancy check (CRC)) issued the battery packs a ask value (challenge), the CRC will contain battery according to this inquiry value and, in the building of the IC in CRC polynomial calculation the CRC value. CRC is based on the host of command and IC secret in the query of the definition of the CRC polynomial completed, the host in CRC values calculated with the calculation result of well battery comparison to identify the appraisal success.

Once the battery through the appraisal, bq26150 will issue commands to ensure that the host and quantity test plan of material lines between normal communication. When the battery connection interruption or to connect, the whole the identification process will be repeated again.

double the battery application. Figure 4 (b) for use bq26500 support double the typical application of lithium ion battery circuit. In order to support more battery, and this circuit is adding a adjustable regulators. Capacity check millions of BAT pin and the bottom of a battery anode linked to complete the variable voltage measurement of the battery.

Host to be able to read capacity check plan of variable voltage measurement battery, to make sure the end of discharging threshold and charging terminate threshold. As for the remaining state power (RemainingStateofCapacity), do not need to read can use directly.

The above bq2650x and bq27x00 etc capacity check plan provides the battery manufacturer a simple to use options, this scheme L [just measuring battery voltage to be precise, so these capacity check plan can be applied to various battery framework, and can support the battery identification and double the battery application '

3.2 power detection algorithm is an example of applications another, can apply to all kinds of general voltmeter new IC.

Today's many manufacturers can provide a variety of voltmeter IC,, the user can choose the suitable function device, to optimize the product price. Use voltmeter measurement of storage battery parameters, the separate architecture allows users in the host custom power measurement algorithm within. Eliminating embedded processor battery cost. On this to Dallase semicconductor company called cases of DS2762 chip for typical analysis. A new separate voltmeter IC, its structure see chart 5 (a) below.

DS2762 application characteristics

DS2762 is a single quarter of lithium battery voltmeter and protection circuit, integrated into a tiny 2.46 mm x 2.74 mm inversion of packaging. Due to internal integration for power detection of high precise resistance, this device is very save a space. It is the small size and incomparable high level of integration, for mobile phone battery and other similar handheld products, such as PDA, etc, are all very ideal. Integrated protection circuit continuously monitoring the battery voltage, over voltage and flow fault (charging or discharge period). Different from the independent protection IC, DS2762 allow main processor surveillance/control protection FET conduction state, such, can DS2762 through the protection of the power system and the control circuit implementation. DS2762 can also charge a battery consumption has depth, when the battery voltage within three V, provide a limit of the charging current recovery path.

DS2762 accurate monitoring battery current, voltage and temperature, the dynamic range and resolution of common satisfy any mobile communication product testing standards. The measurement of current for internally generated when the integral, realize the power measurement. Through the real-time, continuous automatic disorders correct, the precision of power measurement can be increased. The built-in measuring resistance due to eliminate manufacturing process and temperature and cause resistance change, further improve the precision of the voltmeter. Important data stored in 32 bytes, can add the lock EEPROM; 16 bytes of SRAM are used to keep dynamic data. And DS2762 all communication all through the 1-Wire, more communication interface node, minimize the battery and the connection to the host. Its main features for; Single quarter of lithium battery protector; High precision current (power measurement), voltage and temperature measurement; Optional integrated 25 m Ω measuring resistance, each DS2762 after fine-tuning alone; 0 V battery restore charge; 32 bytes can lock EEPROM, 16 bytes SRAM, 64 a ROM;

1-Wire, node, digital communication interface; Support more battery power management, and through the protection system control FET power; Dormancy mode power supply current only 2 µ A (most); Work mode power supply current for 90 µ A (most); 2.46 mm x 2.74 mm inversion of packaging or 16 feet SSOP package led, and both are can choose with or without detection resistance; After has with e

2011-12-23

Apple patent to display in portable devices used in fuel cells

Apple on an application for a patent for the fuel cells on Thursday are exposed. In the patent application, apple describes a kind of electronic equipment, such as notebook computer use fuel cells, and without any increase in too much weight of fuel cell performance optimization method.

An application for a patent for the title as "for portable computing devices power supply of fuel cell system". Apple says, consumers are becoming more and more attention to use of renewable energy. Fuel cell in technology competitive, as the energy density high, compared with the traditional batteries can be in the same volume provide more energy.

Apple patent application show: "fuel cells and additional fuel can bring high energy density, in not adding fuel to support of portable electronic devices for days or even weeks." Apple also said, use a fuel cell is to face the challenge of portability and cost.

Usually, the fuel cells to electronic equipment support portable charging, and users need to carry a fuel rods. And this is different, have conceived a and apple electronic equipment tightly integrated fuel cell. And this one the bulk of the patent application in a description of a fuel cell stack is used to optimize the flow of energy control system.

Another apple patent application describes how the fuel cell and rechargeable batteries work together, and to make the fuel cell and rechargeable batteries charging each other. This patent application said: "it will be to make the fuel cell system not necessary to large and heavy integration of the battery, thus obviously reduce the fuel cell system size, weight and cost."

This is not the first application for apple about fuel cell patent. Patently Apple web site said, October the exposure to a patent application shows that Apple are designing a fuel panels, from portable equipment to produce more energy.

About fuel itself, apple a patent application shows that there are a variety of fuel for power electronic equipment, one of which is sodium borohydride and water mixture. But these are still at the experimental stage, has yet to commercial.

Portable fuel cell charger faces a major obstacle is that manufacturers need to establish sales channel sales and recycled fuel rods. Apple will likely use apple retail stores to have finished the work.

____________

http://www.chargerbatteryshop.co.uk/panasonic-lumix-dmc-fs62-battery-charger-cbbs.html

http://www.gobatteryonline.com/canon-powershot-a3000-is-battery-charger-gose.html

2010-12-01

いまさらながら気付いたこと

YouTube - 「サマーウォーズ」 本編オープニング(5分バージョン

http://www.youtube.com/watch?v=JwqMNjRlqfA

 

アドホックパーティー for PlayStation®Portable | プレイステーション® オフィシャルサイト

http://www.jp.playstation.com/psn/adhocparty/

 

ただ今日モンハンポータブル3rdやろうとしてアドホックパーティーの使い方調べてたら

すごくサマーウォーズだったので。

そんだけ

 

あとアドホックパーティーのページ上部広告枠で

ネギマウスオーバーしたときの音声再生がイラ壁

2010-03-02

BUFFALO RAMDISKを使ってみようかな。

RAMディスクとはメモリを超高速なディスクとして使用できる技術です。

分かりやすい解説→http://buffalo.jp/products/catalog/memory/speedup/ramdisk.html

RAMディスク上にOperaFirefoxPortable版を置いて使っています。HDD上で使う3倍くらい速いです。

ただRAMディスクは要するにメモリなのでHDDバックアップするのを忘れて電源を切るとRAMディスク上の変更が反映されなかったりします。

気がついたときにバッチファイルを走らせてバックアップしていたのですが「BUFFALO RAMDISK」というソフト自動バックアップしてくれるようなので使ってみようかなと。

日本語なので分かりやすそうだし。

ただハードウェアに干渉するソフトなので安易に入れると面倒なことになるかも。

ちょっと迷ってます。

2010-01-26

nicocacheを入れるとFirefox Portable不具合が起こる場合あり

タブが読み込み中のまま進まない。

safe modeでも同じ。

Portableじゃないほうは普通に使える。

どうやらnicocacheが原因っぽい。

これでまた使える (〃´o`)=3

 
アーカイブ ヘルプ
ログイン ユーザー登録
ようこそ ゲスト さん