Bridge transistor inverter circuit

Details Bridge transistor inverter circuit Bridge transistor inverter circuit

1975-04-15

1976-08-24

Goldberg, Gerald

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 321 47, H02M 753

Patent

active

039769321

ABSTRACT:
A bridge type switching transistor inverter circuit for driving high power AC loads such as arc discharge lamps from a DC electrical energy source. Four switching transistors are arranged in bridge configuration that the load may be connected alternately in the inverter circuit between diagonal pairs of switching transistors. Each switching transistor is included in a switching amplifier whose response time is short as compared with the response characteristic of the load and the AC cycle period. A single driver circuit is coupled to the respective switching amplifiers by photocouple isolation means through an electro-optically coupled light emitter-sensor pair. A clock pulse generator provides the necessary signal to the driver circuit which includes a phase splitter driver. A two-stage amplifier receives the signal from the sensor transistor of the photocouple and amplifies it to drive the switching transistor which is, in the preferred embodiment, a power darlington device of the monolithic type.

REFERENCES:
patent: 3308372 (1967-03-01), Young et al.
patent: 3525883 (1970-08-01), Lordanidis
patent: 3766409 (1973-10-01), Shuey
patent: 3828206 (1974-08-01), Zuk
patent: 3851240 (1974-11-01), Park et al.

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