Now showing items 1-5 of 5
Two-stage voltage regulators with adjustable intermediate bus voltage, adjustable switching frequency, and adjustable number of active phases
(United States Patent and Trademark Office, 2006-07-04)
A two-stage power converter that dynamically adjusts to output current requirements includes a first stage regulator that provides power to a second stage regulator. The first stage can be a buck converter, and the second ...
Multiphase voltage regulator having coupled inductors with reduced winding resistance
(United States Patent and Trademark Office, 2007-04-03)
A multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. A magnetic core with a unique woven topology provides inverse coupling between the inductors. The inductors can ...
Self-driven scheme for synchronous rectifier having no body diode
(United States Patent and Trademark Office, 2007-09-04)
A voltage converter uses a component such as a JFET or four-terminal power MOSFET having no body diode and exhibiting no body diode conduction characteristic as a synchronous rectifier to reduce switching losses and body ...
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 ...
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 ...