Abstract

One-stage power factor correction (PFC) with output electrical isolation. The Converter has a configuration of combining a boost circuit and a forward circuit in one power stage. To relieve the voltage spike caused by the leakage inductance of the power transformer, two bulk storage capacitors are used. The same power switch is shared by the PFC circuit and the power conversion circuit. Due to its simplified power stage and control circuit, this converter presents a better efficiency (87%), lower cost and higher reliability. Detailed steady state analysis results show this novel converter has both good power factor correction and excellent regulation capabilities. With PSPICE simulation and experimental results, a measured power factor of 0.99 was obtained by this single switch converter.

Document Type

Patent

Patent Number

US 5,959,849

Application Serial Number

09/102,021

Issue Date

9-28-1999

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

College of Engineering and Computer Science (CECS)

Department

Electrical Engineering & Computer Science - CS Division

Allowance Date

4-26-1999

Filing Date

6-22-1998

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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