Method for protecting electronic component against over voltage of supply voltage of electrical system of motor vehicle, involves activating transistor and diode to limit voltage, and deactivating transistor and diode after preset interval

摘要

The method involves detecting whether a supply voltage (198) exceeds an activation threshold value lying above a normal operation range of the supply voltage. A switching transistor (106) and a breakdown diode (108) are activated to limit the supply voltage to a limiting value lying within the normal operation range, where the normal operation range is an operating voltage range of an accumulator. The switching transistor and a breakdown diode are deactivated after development of a predetermined activation interval. Independent claims are also included for the following: (1) a computer program product comprising a set of instructions to perform a method for protecting an electronic component (2) a device for protecting the electronic component.