Bridge rectifier circuit having active switches and an active control circuit
First Claim
1. A bridge rectifier circuit comprising four rectifier elements in a bridge configuration having two AC input terminals and two DC output terminals, at least two of said rectifying elements comprising active switches, and an active control circuit for controlling the state of said active switches, said control circuit having control inputs coupled to said AC input terminals and control outputs coupled to said at least two active switches, and said control circuit being coupled to and powered from said DC output terminals.
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Accused Products
Abstract
A bridge rectifier circuit uses active switches for at least two of its four rectifying elements, and employs an active control circuit to control the state of the active switches. The active control circuit receives its input from the AC input to the bridge rectifier circuit, is powered by the DC output of the bridge rectifier circuit, and provides control outputs to the active switches. In this manner, a bridge rectifier circuit having improved performance and decreased power dissipation is achieved.
75 Citations
7 Claims
- 1. A bridge rectifier circuit comprising four rectifier elements in a bridge configuration having two AC input terminals and two DC output terminals, at least two of said rectifying elements comprising active switches, and an active control circuit for controlling the state of said active switches, said control circuit having control inputs coupled to said AC input terminals and control outputs coupled to said at least two active switches, and said control circuit being coupled to and powered from said DC output terminals.
Specification