按鍵開關(guān)控制器簡化系統(tǒng)設(shè)計
所屬分類：電路圖
上傳者：serena
標(biāo)簽： 開關(guān)控制器
所需積分：1分積分不夠怎么辦？
文檔介紹： Handheld designers often grapple with ways to de-bounceand control the on/off pushbutton of portable devices.Traditional de-bounce designs use discrete logic, fl ipflops, resistors and capacitors. Other designs includean onboard microprocessor and discrete comparatorswhich continuously consume battery power. For highvoltage multicell battery applications, a high voltageLDO is needed to drive the low voltage devices. All thisextra circuitry not only increases required board spaceand design complexity, but also drains the battery whenthe handheld device is turned off. Linear Technology addressesthis pushbutton interface challenge with a pairof tiny pushbutton controllers.
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