Title:
UNIVERSAL INPUT TO DC OUTPUT CONVERSION CIRCUITRY
Document Type and Number:
WIPO Patent Application WO2001076049
Kind Code:
A3
Abstract:
A circuit (100) supplying a DC output of a desired voltage from an input regardless of power received. In this circuit (100), a rectifier (101) conversts an alternating current (AC) input to direct current (DC) or changes a DC input to a desired polarity. A boost converter (110) receives DC current having a first voltage from the rectifier (101) and outputs DC current having at least a minimal voltage. Finally, a buck boost convertor (120) receives the DC current haaving the at least said minimal voltage and outputs DC having a desired voltage.
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Inventors:
MANSFIELD WILLIAM M
HARRIS WILLIAM JR
HARRIS WILLIAM JR
Application Number:
PCT/US2001/040098
Publication Date:
June 20, 2002
Filing Date:
February 12, 2001
Export Citation:
Assignee:
MICRO MOTION INC (US)
International Classes:
H02M3/155; G01F1/84; (IPC1-7): G01F1/84; H02M1/10; H02M7/217
Foreign References:
| US5771160A | 1998-06-23 | |||
| US6002103A | 1999-12-14 | |||
| US5481449A | 1996-01-02 | |||
| US5077486A | 1991-12-31 | |||
| US5790392A | 1998-08-04 | |||
| US5636106A | 1997-06-03 |
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