Abstract: A circuit consisting of an SMBus™ I/O expander, step-up converter, and digital potentiometer enables the SMBus to control the contrast of an LCD. Small, handheld, battery-powered devices often feature an L...

摘要：冷陰極熒光燈(CCFL)用作白光源為液晶顯示器(LCD)提供背光。CCFL可提供許多很好的特性，但也要考慮它們獨(dú)特特征，以便使其可用性最大化。這篇應(yīng)用筆記描述了一些CCFL的獨(dú)特...

Abstract: Besides reducing the number of required GPIO lines from eleven to two, this circuit also provides programmable contrast and backlight control. Most LCD character displays connect to the outside world through a c...

摘要：DS3984和DS3988為多通道冷陰極熒光燈(CCFL)控制器。DS3984支持四個(gè)通道，DS3988支持八個(gè)通道。這些控制器使用推挽式驅(qū)動(dòng)架構(gòu)，可將直流電源電壓轉(zhuǎn)換成驅(qū)動(dòng)CCFL所需的交流高壓波...

Calculator...

The DS3514...

電子顯示器比較-El...

LED制造商網(wǎng)站...

VFD管制造商網(wǎng)站...

Using Maxi...

LCD TV 液晶電視背光設(shè)計(jì)分析 摘要：LCD (液晶顯示器)是電控發(fā)光管，LCD TV (液晶顯示電視)采用白光作為“背光”，通常使用冷陰極熒光燈(CCFL)為彩色...

摘要：本應(yīng)用筆記說明MAX6951/MAX6950 LED驅(qū)動(dòng)器和MAXQ2000的SPI外設(shè)通信的匯編程序設(shè)計(jì)。 引言MAX6950和MAX6951分別為5位和8位共陰極LED顯示驅(qū)動(dòng)器，通過高速SPI 接口控...

Presenting numbers on a 7–segment LED display is simple with 7–segment LED drivers like IC1 of Figure 1, but 7–segment LED displays are not capable of displaying all the letters of the alphabet. Yet, a display of text is valuable in ...

Abstract: Circuit based on a buck/boost converter controller regulates current to a white LED, despite an allowed variation of input voltage from 2.7V to 16.5V. The advent of high-power LEDs capable of replacing incandesc...

摘要：本應(yīng)用筆記介紹4通道的冷陰極熒光燈(CCFL)控制器DS3994采用的軟啟動(dòng)方式(SSP)，它可以在每個(gè)燈點(diǎn)亮的開始逐漸增加MOSFET的占空比。本文解釋了如何修改器件的SSP默認(rèn)值，從而...

Abstract: This application note details how multiple MAX696x 8 x 8 matrix LED drivers can be arranged and programmed to support larger LED displays or dot-matrix elements. This family of drivers supports up to 256 daisy-chained ICs to driv...

路由器基本工作原理及其安全設(shè)置管理 路由器工作原理    路由器是工作在IP協(xié)議網(wǎng)絡(luò)層實(shí)現(xiàn)子網(wǎng)之間轉(zhuǎn)發(fā)數(shù)據(jù)的設(shè)備。路由器內(nèi)部可以劃分為控制平面和數(shù)據(jù)...

路由器的接口 　　路由器具有非常強(qiáng)大的網(wǎng)絡(luò)連接和路由功能，它可以與各種各樣的不同網(wǎng)絡(luò)進(jìn)行物理連接，這就決定了路由器的接口技術(shù)非常復(fù)...

過濾網(wǎng)絡(luò)結(jié)合反鋸齒和...

Switched-capacitor filters (SCFs) are renowned for ease of use. They are accurate, require no external components, and maintain a predictable response over all specified operating conditions. For integrated-circuit SCFs, their tightly matc...