Title:
VOLTAGE REGULATION SCHEME FOR POWER SUPPLY HAVING A VOLTAGE-FED INVERTER
Document Type and Number:
WIPO Patent Application WO1999008373
Kind Code:
A3
Abstract:
A power supply is disclosed, including a resonant circuit having an output voltage and a current oscillating therethrough, and a voltage-fed half-bridge inverter producing a source voltage at an output coupled to the resonant circuit, the inverter responsive to a driving signal. A driving circuit has a first input representing the sensed current oscillating through the resonant circuit, a second input representing the output voltage, and a reference voltage. The driving circuit includes compensation circuitry maintaining output voltage at the reference voltage and commanding a phase shift angle, and phase-shifting circuitry producing the driving signal based on a phase-shift of the sensed current, the amount of phase shift commanded by the compensation circuitry.
Inventors:
CHANG CHIN
CHANG JOSEPH
BRUNING GERT
CHANG JOSEPH
BRUNING GERT
Application Number:
PCT/IB1998/001214
Publication Date:
April 15, 1999
Filing Date:
August 07, 1998
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS SVENSKA AB (SE)
PHILIPS SVENSKA AB (SE)
International Classes:
H05B41/24; H02M7/5383; H02M7/53846; H05B41/282; H05B41/285; H05B41/298; H05B41/392; (IPC1-7): H02M7/537; H05B41/29
Domestic Patent References:
| WO1994027356A1 | 1994-11-24 | |||
| WO1998028949A1 | 1998-07-02 |
Foreign References:
| EP0529901A1 | 1993-03-03 | |||
| US5416387A | 1995-05-16 | |||
| US5363020A | 1994-11-08 |
Download PDF: