Impedance matching circuit

Details Impedance matching circuit Impedance matching circuit

1989-08-14

1990-06-05

Bentsuro, Ro

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

307 98, 307257, 307104, G05F 110

Patent

active

049317075

ABSTRACT:
The disclosure describes an impedance matching circuit for maintaining the input impedance, of a drive transistor as sensed by a driver circuit, substantially constant. The circuit is connected to the input of the drive transistor such that when the drive transistor is forward biased, the input impedance sensed by the drive circuit is the input impedance of the drive transistor, and when the drive transistor is reverse biased, the input impedance sensed by the driver circuit is the combination of the input impedance of the drive transistor and an impedance of the matching circuit.

REFERENCES:
patent: 4276484 (1981-06-01), Riveros

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