Title:
POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO2002097957
Kind Code:
A3
Abstract:
Two proposals are made for power supply systems comprising at least one resonant inverter and one control unit. According to the first proposal the power supply system comprises two inverters and produces two output voltages, the control circuit processing as an actual value on the one hand the sum of and on the other hand the difference between the two output voltages. According to the second proposal a control circuit does not directly process the controlled variables for a power supply system comprising at least one inverter, but difference units for controlled variables determine the deviations from a preceding sampling instant and these difference values are processed. Also the correcting variable calculated in this way is a difference value which is converted into a correcting variable value by a correcting variable summing unit. The two proposals can be advantageously combined. As an important improvement is proposed the use of a limiting controller which generally becomes active in case of imminent transgression of a maximum value and which limits the actuation. The control circuit is preferably used as a digital control circuit for a state space control.
Inventors:
SCHEEL THOMAS (NL)
HATTRUP CHRISTIAN (NL)
MAERTENS OLAF (NL)
GERCKE THORSTEN (NL)
HATTRUP CHRISTIAN (NL)
MAERTENS OLAF (NL)
GERCKE THORSTEN (NL)
Application Number:
PCT/IB2002/001888
Publication Date:
April 17, 2003
Filing Date:
May 28, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS CORP INTELLECTUAL PTY (DE)
SCHEEL THOMAS (NL)
HATTRUP CHRISTIAN (NL)
MAERTENS OLAF (NL)
GERCKE THORSTEN (NL)
PHILIPS CORP INTELLECTUAL PTY (DE)
SCHEEL THOMAS (NL)
HATTRUP CHRISTIAN (NL)
MAERTENS OLAF (NL)
GERCKE THORSTEN (NL)
International Classes:
H02M7/523; H02M3/28; H05G1/10; H05G1/58; (IPC1-7): H02M3/337
Foreign References:
| EP0716561A1 | 1996-06-12 | |||
| DE19940137A1 | 2001-03-01 | |||
| US5272612A | 1993-12-21 |
Other References:
NAKAOKA M ET AL: "The state-of-the-art phase-shifted ZVS-PWM series and parallel resonant DC-DC power converters using internal parasitic circuit components and new digital control", PROCEEDINGS OF THE ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE (PESC). TOLEDO, JUNE 29 - JULY 3, 1992, NEW YORK, IEEE, US, vol. 2 CONF. 23, 29 June 1992 (1992-06-29), pages 62 - 70, XP010064703, ISBN: 0-7803-0695-3
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