汽车保护电路电源电压中断

摘要：该电路保持电源的负载，无论在电源电压瞬间短路或打开，包括低电流过压保护IC （ MAX6495的工作） ，保护负载免受瞬态电压高达72V 。

Maxim > App Notes > Circuit Protection Protection and Isolation
Keywords: automotive electronics, overvoltage protection, brownout protection, ride-through capability, MOSFETs Dec 22, 2010

APPLICATION NOTE 4550
Automotive Protection Circuit "Rides Through" Supply-Voltage
Interruptions and 72V Transients
By:Ronald Moradkhan


Abstract:This circuit maintains power to the load regardless of momentary shorts or opens in the supply voltage, and includes a
low-current overvoltage-protection IC (MAX6495) that protects the load against transient voltages up to 72V.

A similar version of this article appeared in the November 25, 2007 issue of Machine Design magazine.

Many applications in automotive electronics require a supply voltage that remains uninterrupt