U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Two-terminal transistor rectifier circuit arrangement

Patent 4519024 Issued on May 21, 1985. Estimated Expiration Date: Icon_subject September 2, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3798531

High efficiency rectifier with multiple outputs
Patent #: 4323962
Issued on: 04/06/1982
Inventor: Steigerwald

High voltage operational amplifier Patent #: 4453134
Issued on: 06/05/1984
Inventor: Pernyeszi

Inventors

Assignee

Application

No. 06/528899 filed on 09/02/1983

US Classes:

363/127, Transistor363/89With transistor control means in the line circuit

Examiners

Primary: Wong, Peter S.
Assistant: Jones, Judson H.

Attorney, Agent or Firm

International Classes

H02M 7/217 (20060101)
G01R 19/02 (20060101)

Abstract

A two-terminal rectifier circuit, useful for converting an input a.c. voltage into an output d.c. voltage, is formed by a power MOSFET which is provided with an electrical feedback comparator network designed to turn on the MOSFET once during each a.c. cycle when the input a.c. voltage is nearly equal to its peak positive value.

Other References

  • Hewlitt Packard DC Power Supplies Catalog & Handbook, 1968, p. 52
  • IBM Technical Disclosure Bulletin, vol. #23, No. 10, Mar. 1981
  • R. S. Kagan et al., "Improving Power Supply Efficiency with MOSFET Synchronous Rectifiers", Proceedings of Powercon 9, Ninth International Solid-State Power Electronics Conference, Session D, Paper D-4, Jul. 1982, pp. 1-5
  • S. Waaben, "FET Switching Devices for Powering of Telecommunications Circuits", Intelec 81, Third International Telecommunications Energy Conference, May 1981, pp. 250-252
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