Patent ID: 9509227
Filing Date: 2016-11-29
CPC Classification: H02M

Claim Text:
1. A bridge circuit, comprising: a first bridge including a first plurality of MOSFETs and including a first input terminal and a second input terminal; a second bridge including a second plurality of MOSFETs and including a third input terminal and a fourth input terminal, the first bridge and the second bridge being coupled in parallel and being coupled to a first load terminal and a second load terminal; a resistor coupled between a gate and a source of a MOSFET from the first plurality of MOSFETs in the first bridge; a first zener diode coupled to the resistor and directly coupled to the first input terminal; and a second zener diode coupled to the resistor such that the resistor is electrically disposed between the first zener diode and the second zener diode, the first zener diode, the second zener diode, and the resistor, in conjunction with a turn-on threshold voltage (Vth) of the at least one of the MOSFETs in the first plurality of MOSFETs, is configured to limit a feed back voltage across the third terminal and the fourth terminal when an operating voltage is applied across the first terminal and the second terminal.