Reverse voltage protection circuit

摘要

An apparatus for providing reverse protection to an electronic circuit is provided. The electronic circuit has a positive input terminal and a negative input terminal. The positive input terminal is coupled to a positive battery terminal via the apparatus. The negative input terminal is connected to a negative battery terminal. The apparatus includes a MOSFET transistor having a gate terminal, a drain terminal and a source terminal. One of the drain terminal and the source terminal is connected to the positive battery terminal and an other of the drain terminal and the source terminal is connected to the positive input terminal. One end of a resistor is connected to the gate terminal. One end of a pair of Zener diodes is connected to the gate terminal. The other end is connected to the source terminal.