Patent ID: 7791914
Filing Date: 2010-09-07
Classification: H02M,H03K,Y02B

Abstract:
1. A rectifier bridge, comprising: a first rectifier comprising a first body diode, the first rectifier coupled to a first comparator; a second rectifier comprising a second body diode, the second rectifier coupled to a second comparator; a third rectifier comprising a third body diode, the third rectifier coupled to a third comparator; a fourth rectifier comprising a fourth body diode, the fourth rectifier coupled to a fourth comparator; wherein the first comparator applies a voltage to the first rectifier when it senses electrical current through the first body diode, the second comparator applies a voltage to the second rectifier when it senses electrical current through the second body diode, the third comparator applies a voltage to the third rectifier when it senses electrical current through the third body diode, and the fourth comparator applies a voltage to the fourth rectifier when it senses electrical current through the fourth body diode, wherein said first rectifier, said second rectifier, said third rectifier and said fourth rectifier operate at a first efficiency, said first rectifier, said second rectifier, said third rectifier and said fourth rectifier operate at a second efficiency when said first comparator, said second comparator, said third comparator and said fourth comparator applies said voltage to said first rectifier, said second rectifier, said third rectifier and said fourth rectifier, said second efficiency being a higher efficiency than said first efficiency.