Random pulse width modulation method and device

US6600669B2 · kind B2 · utility

Assignee

• The Board of Regents of the University and Community College System of Nevada, on behalf of the University of Nevada at Reno · US

Inventors

• Andrzej M. Trzynadlowski · Reno, US
• Bin Huo · Wayland, US

Key dates

• Filing date: Jun 25, 2002
• Grant date: Jul 29, 2003
• Expiry date: Jun 25, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M1/44
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A system and method for executing random pulse width modulation in electronic power converters. In accordance with this invention, the sampling period of sampling cycles for pulse width modulation remains constant while the period of switching cycles are varied. The periods of switching cycles are varied using random numbers to calculate delays between the start of coincident sampling and switching cycles.