sidney的百度空间---交流和需要帮忙可以发信到sidney365##163.com(替换##为@)

汉字简化后，親不见，愛无心，產不生，厰空空，麵无麦，運无车，導无道，兒无首，飛单翼，湧无力，雲无雨，開関无门，鄉里无郎，聖不能听也不能说，買成刀下有人头，輪成人下有**，進不是越来越佳而是往井里走，可魔仍是魔，匪还是匪 。

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欣赏下人家的万能板作品.....

金属-氧化物-半导体(Metal-Oxide-Semiconductor)结构的晶体管简称MOS晶体管，有P型MOS管和N型MOS管之分。由 MOS管构成的集成电路称为MOS集成电路，而由PMOS管和NMOS管共同构成的互补型MOS集成电路即为 CMOS-IC（ Complementary MOS Integrated Circuit）。目前使用最最广泛的晶体管是CMOS晶体管，CMOS晶体管特点是什么？首先CMOS晶体管功耗和抗干扰能力优于同时期的TTL器件，而且速度和TTL器件相当，所以CMOS取代TTL是大势所趋，我们看到目前集成电路上的晶体管还有几乎所有PLD器件都是采用CMOS技术，这一点就说明了CMOS的大行其道。

CMOS数字集成电路是利用NMOS管和PMOS管巧妙组合成的电路，属于一种微功耗的数字集成电路。主要系列有：

1．标准型4000B/4500B系列

该系列是以美国RCA公司的CD4000B系列和CD4500B系列制定的，与美国Motorola公司的MC14000B系列和C14500B系列产品完全兼容。该系列产品的最大特点是工作电源电压范围宽（3～18V）、功耗最小、速度较低、品种多、价格低廉，是目前CMOS集成电路的主要应用产品。

2．74HC–系列

54/74HC–系列是高速CMOS标准逻辑电路系列，具有与74LS – 系列同等的工作度和CMOS集成电路固有的低功耗及电源电压范围宽等特点。74HCxxx是74LSxxx同序号的翻版，型号最后几位数字相同，表示电路的逻辑功能、管脚排列

http://www.eetrend.com/blog/500044?page=4

A Designer's Guide to Instrumentation Amplifiers, written by Charles Kitchin and Lew Counts, gives a comprehensive overview of Instrumentation Amplifier technology and application.

Looking inside A Designer's Guide to Instrumentation Amplifiers ...

Download Specific Chapters or the Complete Guide by clicking on the links below:

The Complete Document (pdf)------------------完整版本；后面是分章节的版本（完整版包括了后面的，所以一个就OK了）

Table of Contents, Bibliography and Acknowledgements (pdf)

Chapter I - In-Amp Basic (pdf)

Chapter II - Inside an Instrumentation Amplifier (pdf)

Chapter III - Monolithic Instrumentation Amplifiers (pdf)

Chapter IV - Monolithic Difference Amplifiers (pdf)

Chapter V - Applying In-Amps Effectively (pdf)

Chapter VI - In-Amp and Diff Amps Applications (pdf)

Chapter VII - Matching In-Amps Circuits to Modern ADCs (pdf)

Appendix A - Instrumentation Amplifier Specifications (pdf)

Append

Looks like the official CyanogenMod 9 for the Galaxy S GT-I9000 is starting to take shape. With features like a custom launcher called Trebuchet (based on the stock Android 4.0 launcher from Google) and toggle buttons in the notification bar, the CyanogenMod 9 ROM for the Samsung Galaxy S GT-I9000 is one of the best ways for your phone to enjoy Android 4.0.3 Ice Cream Sandwich.

CyanogenMod 9 ROM is still in its beta testing stage and as such, it still has a few bugs that need to be addressed. If you’re willing to go through them to get this amazing ROM on your phone, read on for a quick guide.

Requirements and Reminders

Make sure to backup all the data on your phone in case they may be lost and/or corrupted during the update process.

Make sure your Samsung Galaxy S GT-I9000 is fully charged, to prevent the device from shutting off in the middle of the update process.

This ROM and the instructions in this tutorial are intended only for Samsung G

Currently, there are many Mobile Operating Systems in the market, but Android is definitely my favorite and is becoming that for many people.  The reason behind it’s success is its open source nature. One can easily mold the OS according to its wish and comfort and thus there are many custom ROMS available online for Android users.

One problem with these ROMs is that they are made keeping developers needs in mind but what if I say that you can now make your custom ROM with personal sets of Kernels, Apps and features. Yes, dear friends, you can now do so free of cost at ROM Kitchen.

ROM Kitchen is an online kitchen which will cook your custom ROM for your Samsung Galaxy S and Captive ROM. All you need to do is fill in the necessary ingredients and hit the cook button.

How To

Choose the wipe or non wipe base rom (wipe recommended for all non XXJPY users)

Choose the kernel

Choose the modem

Select Apps

Choose the Launc

Official Gingerbread Update For Samsung Captivate Leaks Out, Is Now Available To Download

Don't feel like waiting for Samsung and AT&T to get around to officially rolling out a Gingerbread update for the Captivate? Thanks to SamFirmware, you don't have to; you can flash an early build of the update now, provided that you're comfortable with running leaked and likely somewhat buggy firmware.

SamFirmware actually has two such leaks, the first (I897UCKE3) dated May 26th and the second (I897UCKF1) having a build date of June 8th. Though the folks at XDA Developers are still digging through the leaks' contents, we already know that both builds contain AT&T bloatware - as is to be expected from any sort of official software - as well as sideloading capabilities (yay!) and... a new bootloader that appears to be identical to that of a Gingerbread-running i9000. Unfortunately, HSUPA is still disabled, and you'll have to flash the update via Odin to avoid bricking.

如果你想安装一些应用软件或者是库文件，可以去相应的软件下载网站去下载并安装，但是如果你想要一次安装多个软件或者库文件的话，你可以尝试用Android ROM制作的方法，制作一个update.zip压缩包也就是刷机包，来简单快捷的完成多个软件的一次性安装。

Android系统使用恢复工具（recovery）来安装这个update.zip文件中的软件或库文件到Android文件系统中。而一个Android ROM或是主题开发者通常都是使用这个方式来发布他们的作品（刷机包）。

在Android ROM制作的过程中，创建一个update.zip文件是很简单的事情，你所需要做的就是将文件放置到与Android文件系统中相对应的文件夹中，然后编写一个用来复制这些文件到手机对应位置的update-script文件。作为举例，本文会安装Calculator.apk到system/app文件夹，复制libsec-ril.so文件到system/lib文件夹：

（1）新建一个空文件夹(本文例：C:\goapk)

（2）新建用来放置Calculator.apk的文件夹C:\goapk\system\app以及用来放置libsec-ril.so的文件夹C:\goapk\system\lib。

（3）创建用来放置update-script文件的文件夹C:\goapk\META-INF\com\google\android。

（4）创建一个名为update-script的文件，其内容如下：

show_progress 0.1 0

copy_dir PACKAGE:system SYSTEM:

show_progress 0.1 10

行1和行3：显示进度条；

行2：复制刷机包中的system文件夹到Android的