Power amplifiers for driving inductive loads

Details Power amplifiers for driving inductive loads Power amplifiers for driving inductive loads

1986-06-09

1987-10-06

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

G01S 116, G01S 118

Patent

active

046985590

ABSTRACT:
A power amplifier circuit for driving an inductive load comprises a capacitor coupled between first and second circuit nodes, a first unidirectionally-conductive device having a first terminal coupled to the first circuit node, and a transistor having its collector coupled to the second terminal of the first unidirectionally-conductive device and having its emitter coupled to the second circuit node. The direction of conduction of the first unidirectionally-conductive device is the same as the direction of conduction through the collector-emitter path of the transistor. The circuit also comprises a second unidirectionally-conductive device connected in parallel with the first unidirectionally-conductive device for conducting current in the opposite direction from the direction of conduction of the first unidirectionally-conductive device.

REFERENCES:
patent: 4223367 (1980-09-01), Zappala
patent: 4247805 (1981-01-01), Zappala
patent: 4400653 (1983-08-01), Olmstead

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