获得12V ， 8V至15V的输入

摘要：降压/升压转换器，成功地解决了调节一个12V的宽输入电压摆动与密封铅酸蓄电池的挑战。

Maxim > App Notes > CIRCUIT PROTECTION POWER-SUPPLY CIRCUITS

Keywords: buck/boost converter, buck-boost, dc-dc converters, battery power supply, 12V regulation, MAX641 Jul 09, 1998

APPLICATION NOTE 411
Derive 12V From 8V to 15V Input

Abstract: The buck/boost converter successfully addresses the challenge of regulating a 12V from the wide
input-voltage swing associated with the sealed lead-acid battery.


Derive 12V From 8V to 15V Input

You can't derive a regulated 12V output from a 12V lead-acid battery by using a simple boost converter because
it it can't accept an input voltage that is greater than its output voltage. Conversly, a buck converter is a
combination of buck and boost circuitry that successfully addresses the challenge of the wide input-voltage swing
associated wit