Switching scheme for power supply having a voltage-fed inverter

Details Switching scheme for power supply having a voltage-fed inverter Switching scheme for power supply having a voltage-fed inverter

1996-12-23

1998-07-14

Hecker, Stuart N.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363132, 315307, H02M 3335, G05F 100

Patent

active

057814180

ABSTRACT:
A power supply is disclosed which includes a resonant circuit, and a voltage-fed inverter producing an applied voltage at an output coupled to the resonant circuit, the inverter responsive to a driving signal. A driving circuit has an input representing the sensed current flowing through the resonant circuit and includes phase-shifting circuitry. The driving circuit produces the driving signal based on phase-shift of the sensed current by the phase-shifting circuitry.

REFERENCES:
patent: 4952849 (1990-08-01), Fellows et al.
patent: 5363020 (1994-11-01), Chen et al.
patent: 5416387 (1995-05-01), Cuk et al.
patent: 5438243 (1995-08-01), Kong
patent: 5559688 (1996-09-01), Pringle
patent: 5677602 (1997-10-01), Paul et al.
"A Comparison of Half-Bridge Resonant Converter Topologies," IEEE Transactions on Power Electronics, Apr. 1988, pp. 174-181.
"A New and Improved Control Techniwue," Proceeding of IEEE Applied Power Electronics Conference, Mar. 1995, pp. 657-664.
555 timing IC 300, produced by Motorola.
AD654 produced by Analog Devices of Norwood, Massachusetts.
IR2111 produced by International Rectifier, El Segundo, California.
IEEE "Self Excited Half-Bridge Series Resonant Parallel Loaded Fluorescent Lamp Electronic Ballasts" by T.-H. Yu, H.-M. Huang and T.-F. Wu, pp. 657-664.

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