Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Patent
1995-08-11
1996-09-24
Pascal, Robert
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Impedance or current regulator in the supply circuit
H05B 3702
Patent
active
055593941
ABSTRACT:
A monolithic MOS gate driver chip is described for driving high side and low side power MOSFETs in a gas discharge lamp ballast circuit. The chip includes a timer circuit for generating a square output at the natural frequency of resonance of the lamp ballast. Dead time circuits are provided in the chip to prevent the simultaneous conduction of both high side and low side MOSFETs. The chip may be housed in a right pin DIP package.
REFERENCES:
patent: 4641061 (1987-02-01), Munson
patent: 4933605 (1990-06-01), Quazi et al.
patent: 5331253 (1994-07-01), Counts
"GV voltage versatility", Electronics World & Wireless World, Oct. 1994, pp. 837-839.
Wood, "Electronic Ballasts Using the Cost-Saving IR2155 Driver", International Rectifier Application Notes, 1994, AN-995, pp. 2-4.
Chryssis, "High-Frequency Switching Power Supplies Theory & Design", 2d Ed., pp. 30, 53 and 183-208, 1989.
International Rectifier Corporation
Pascal Robert
Shingleton Michael
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