Now showing items 11-16 of 16
Current sensing in multiple coupled inductors by time constant matching to leakage inductance
(United States Patent and Trademark Office, 2007-06-19)
Voltage regulators often have coupled output inductors because coupled output inductors provide improvements in cost and efficiency. Coupled inductors are often used in multi-phase voltage regulators. Feedback control of ...
Power converters having output capacitor resonant with autotransformer leakage inductance
(United States Patent and Trademark Office, 2007-08-07)
Power converters having reduced body diode conduction loss, reduced reverse recovery loss and lower switching noise, among other benefits, have a resonant capacitor Cr connected across an unfiltered output. The resonant ...
Bridge-buck converter with self-driven synchronous rectifiers
(United States Patent and Trademark Office, 2005-02-22)
A non-isolated bridge-buck DC—DC converter has self-driven synchronous rectifiers Q5 Q6 in the buck circuits 28 30. Gate electrodes of the synchronous rectifiers Q5 Q6 are connected to midpoints 24A 24B of the bridge ...
Self-driven circuit for synchronous rectifier DC/DC converter
(United States Patent and Trademark Office, 2004-11-16)
A power converter having a primary circuit (e.g. full bridge) and a secondary circuit (e.g. current doubler) has switches in the secondary circuit that are controlled by a drive circuit. The drive circuit is connected to ...
Method and apparatus for reduction of energy loss due to body diode conduction in synchronous rectifiers
(United States Patent and Trademark Office, 2004-08-24)
A method and apparatus for preventing current flow through the integral body diode of an electronic switch (e.g. MOSFET) in the secondary circuit of a synchronous rectifier. In a conventional synchronous rectifier, body ...
Input current sensing AVP method for future VRM
(United States Patent and Trademark Office, 2009-10-20)
A voltage converter provides a desired voltage droop with load while avoiding output current sensing and active control/feedback circuits and avoiding excessive power dissipation from passive components by placing a sensing ...