电池寿命最大化和最小化的替换

MAX6326微处理器监控中的应用提供了一个电池切换电路断开时，墙上适配器。复位输出驱动外部MOSFET作为开关使用。这种切换电路也去抖期间切换的墙上源输出。
Maxim > App Notes > AUTOMOTIVE MICROPROCESSOR SUPERVISOR CIRCUITS

Keywords: uP supervisor, voltage monitoring, battery-power, push-pull, reset output, microprocessor Sep 09, 2002
supervisor

APPLICATION NOTE 1195
Maximize Battery Life and Minimize Replacements

Abstract: The MAX6326 microprocessor supervisor is used in an application to provide a battery switchover
circuit when the wall adapter is disconnected. The reset output drives an external MOSFET that is used as a
switch. This switchover circuit also debounces the wall-source output during switchover.


Battery-powered portable and handheld devices with plug-in wall adapters must switch automatically between
the battery and the wall source when the AC adapter is connected. A common way to do this is with a diode-OR
connecti