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 ...
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 ...
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 ...