亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

您現在的位置是:蟲蟲下載站 > 資源下載 > 電源技術 > DN436微型全橋壓電馬達驅動器

DN436微型全橋壓電馬達驅動器

  • 資源大小:99 K
  • 上傳時間: 2013-11-18
  • 上傳用戶:a1015382016
  • 資源積分:2 下載積分
  • 標      簽: 436 DN 全橋 壓電

資 源 簡 介

 

Piezoelectric motors are used in digital cameras for autofocus,zooming and optical image stabilization. Theyare relatively small, lightweight and effi cient, but theyalso require a complicated driving scheme. Traditionally,this challenge has been met with the use ofseparatecircuits, including a step-up converter and an oversizedgeneric full-bridge drive IC. The resulting high componentcount and large board space are especially problematicin the design of cameras for ever shrinking cell phones.The LT®3572 solves these problems by combining astep-up regulator and a dual full-bridge driver in a 4mm× 4mm QFN package. Figure 1 shows a typical LT3572Piezo motor drive circuit. A step-up converter is usedto generate 30V from a low voltage power source suchas a Li-Ion battery or any input power source within thepart’s wide input voltage range of 2.7V to 10V. The highoutput voltage of the step-up converter, adjustable upto 40V, is available for the drivers at the VOUT pin. Thedrivers operate in a full-bridge fashion, where the OUTAand OUTB pins are the same polarity as the PWMA andPWMB pins, respectively, and the OUTA and OUTB pinsare inverted from PWMA and PWMB, respectively. Thestep-up converter and both Piezo drivers have their ownshutdown control. Figure 2 shows a typical layout

相 關 資 源

主站蜘蛛池模板: 青岛市| 乌拉特前旗| 增城市| 蒙自县| 丰都县| 阳新县| 民勤县| 萨迦县| 区。| 广昌县| 河东区| 新和县| 左权县| 安达市| 丰宁| 上蔡县| 秭归县| 镇江市| 鹤山市| 长治县| 临武县| 唐山市| 乌拉特中旗| 玉溪市| 和林格尔县| 梅州市| 耒阳市| 恭城| 绍兴县| 浦城县| 许昌县| 济源市| 嫩江县| 延边| 东山县| 隆德县| 鹤壁市| 隆德县| 双江| 邹城市| 新绛县|