大型 TFT-LCD 的功率需求量之大似乎永遠(yuǎn)得不到滿足。電源必須滿足晶體管數(shù)目不斷增加和顯示器分辨率日益攀升的要求,並且還不能占用太大的板級(jí)空間。
標(biāo)簽: TFT-LCD 輸出穩(wěn)壓器 大型 顯示器
上傳時(shí)間: 2014-12-24
上傳用戶:watch100
The LT®1943 is a highly integrated, 4-output regulatordesigned to power large TFT LCD panels. The LT1943employs switching regulators—instead of linear regulators—to minimize power dissipation and accommodate awide input voltage range. The wide input range, 4.5V to22V, allows it to accept a variety of power sources,including the commonly used 5V, 12V and 19V AC adaptors.
標(biāo)簽: TFT LCD 四路輸出 開關(guān)轉(zhuǎn)換器
上傳時(shí)間: 2013-10-19
上傳用戶:yuhaihua_tony
The makers of handheld medical, industrial and consumerdevices use a wide variety of high resolution, small tomedium sized color TFT LCD displays. The power supplydesigners for these displays must contend with shrinkingboard area, tight schedules, and variations in displaytypes and feature requirements. The LTC®3524 simplifi esthe designer’s job by combining a versatile, easily programmed,TFT LCD bias supply and white LED backlightdriver in a low profi le 4mm × 4mm QFN package.
上傳時(shí)間: 2013-10-26
上傳用戶:chens000
PSHLY-B回路電阻測(cè)試儀介紹
標(biāo)簽: PSHLY-B 回路 電阻測(cè)試儀
上傳時(shí)間: 2013-11-05
上傳用戶:木子葉1
針對(duì)目前使用的RS232接口數(shù)字化B超鍵盤存在PC主機(jī)啟動(dòng)時(shí)不能設(shè)置BIOS,提出一種PS2鍵盤的設(shè)計(jì)方法。基于W78E052D單片機(jī),采用8通道串行A/D轉(zhuǎn)換器設(shè)計(jì)了8個(gè)TGC電位器信息采集電路,電位器位置信息以鍵盤掃描碼序列形式發(fā)送,正交編碼器信號(hào)通過XC9536XL轉(zhuǎn)換為單片機(jī)可接收的中斷信號(hào),軟件接收到中斷信息后等效處理成按鍵。結(jié)果表明,在滿足開機(jī)可設(shè)置BIOS同時(shí),又可實(shí)現(xiàn)超聲特有功能,不需要專門設(shè)計(jì)驅(qū)動(dòng)程序,接口簡單,成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot, this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller,designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter, potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU, software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot, ultrasound specific functionality can be achieved at the same time, it does not require specially designed driver,the interface is simple and low cost.
標(biāo)簽: 單片機(jī) B超 數(shù)字化 鍵盤設(shè)計(jì)
上傳時(shí)間: 2013-10-10
上傳用戶:asdfasdfd
薄膜晶體管液晶顯示器(TFT-LCD)具有重量輕、平板化、低功耗、無輻射、顯示品質(zhì)優(yōu)良等特點(diǎn),其應(yīng)用領(lǐng)域正在逐步擴(kuò)大,已經(jīng)從音像制品、筆記本電腦等顯示器發(fā)展到臺(tái)式計(jì)算機(jī)、工程工作站(EWS)用監(jiān)視器。對(duì)液晶顯示器的要求也正在向高分辨率、高彩色化發(fā)展。 由于CRT顯示器和液晶屏具有不同的顯示特性,兩者的顯示信號(hào)參數(shù)也不同,因此在計(jì)算機(jī)(或MCU)和液晶屏之間設(shè)計(jì)液晶顯示器的驅(qū)動(dòng)電路是必需的,其主要功能是通過調(diào)制輸出到LCD電極上的電位信號(hào)、峰值、頻率等參數(shù)來建立交流驅(qū)動(dòng)電場。 本文實(shí)現(xiàn)了將VGA接口信號(hào)轉(zhuǎn)換到模擬液晶屏上顯示的驅(qū)動(dòng)電路,采用ADI公司的高性能DSP芯片ADSP-21160來實(shí)現(xiàn)驅(qū)動(dòng)電路的主要功能。
標(biāo)簽: tft-lcd 驅(qū)動(dòng) 電路設(shè)計(jì)
上傳時(shí)間: 2013-10-30
上傳用戶:hongmo
TKS仿真器B系列快速入門
上傳時(shí)間: 2013-10-31
上傳用戶:aix008
一個(gè)簡單好用的B+樹算法實(shí)現(xiàn)
上傳時(shí)間: 2015-01-04
上傳用戶:縹緲
一個(gè)用Basic實(shí)現(xiàn)的B-Tree算法
上傳時(shí)間: 2013-12-30
上傳用戶:ccclll
一個(gè)用Java applet實(shí)現(xiàn)的B-Tree算法
標(biāo)簽: B-Tree applet Java 算法
上傳時(shí)間: 2013-12-25
上傳用戶:qiao8960
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1