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电路防过电压放大器输出

资料介绍
摘要:为了保护音频放大器及其他汽车电子电路直接连接到汽车电池的电压,一个偶然的事件,添加所示的电路(并联稳压器,二极管,和n沟道MOSFET在音频路径与每个系列) 。
Maxim > App Notes > Amplifier and Comparator Circuits Audio Circuits Automotive Circuit Protection
Keywords: automotive voltage protection, dual n-channel MOSFETs, shunt regulators, class AB amplifiers Jan 06, 2011

APPLICATION NOTE 4555
Circuit Guards Amplifier Outputs Against Overvoltage


Abstract: To protect audio amplifiers and other automotive electronic circuits in the event of an accidental direct connection to the
car battery voltage, add the circuitry shown (a shunt regulator, diodes, and an n-channel MOSFET in series with each audio
path).

A similar version of this article appeared in the July 7, 2007 issue of EDN magazine.

A universal requirement for automotive electronics is that any device with direct connections to the wiring harness must be able to
with……
电路防过电压放大器输出
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