Patent Number: 7,272,023

Title: High efficiency power converter

Abstract: A power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier. First and second primary switches in series with first and second primary windings, respectively, are turned on for a fixed duty cycle, each for approximately one half of the switching cycle. Switched transition times are short relative to the on-state and off-state times of the controlled rectifiers. The control inputs to the controlled rectifiers are cross-coupled from opposite secondary transformer windings.

Inventors: Schlecht; Martin F. (Lexington, MA)

Assignee: SynQor, Inc.

International Classification: H02M 3/335 (20060101); G05F 1/40 (20060101)

Expiration Date: 2019-09-18 0:00:00