Current driven inverter

Details Current driven inverter Current driven inverter

1974-11-26

1976-06-08

Shoop, William M.

H02M 7537

Patent

active

039626261

ABSTRACT:
An inverter circuit having drive transistors which are turned on by logic signal inputs, the drive transistors supply base current to output transistors, when these output transistors are turned on, current is permitted to flow through a current feedback transformer to supply regenerative base current to drive the output transistors into saturation. By using this current feedback technique, the efficiency of the inverter is greatly increased because no more base drive current is being delivered to the output transistors than is required. The inverter of the present invention also uses feedback loops from the base of the output transistors to the secondary of the current feedback transformer to sink the stored charge from the base emitter region of the output transistors so as to turn the transistors off rapidly.

REFERENCES:
patent: 3219906 (1965-11-01), Keller et al.
patent: 3308370 (1967-03-01), Britten et al.
patent: 3344362 (1967-09-01), Lingle
patent: 3629725 (1971-12-01), Ping Sun Chun

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