Transistor amplifier applying large output currents to a load

Details Transistor amplifier applying large output currents to a load Transistor amplifier applying large output currents to a load

1976-12-28

1978-08-22

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307315, 307314, H03K 1700

Patent

active

041091671

ABSTRACT:
The primary winding of an output transformer, having a secondary winding connected across a spark gap or other load, is divided into a main coil and at least one counteracting coil with a reduced number of turns connected in series opposition across a source of direct current. An amplifier in the primary circuit, to which a train of voltage pulses may be fed, comprises at least two stages formed by a driving transistor in series with the counteracting coil and a power transistor in series with the main coil, the transistors being interconnected in a Darlington configuration. The countervailing voltages appearing across the two coils produce between the collectors of these transistors a voltage difference which intensifies the collector current of the driving transistor to insure full saturation of the power transistor in a conduction phase. In the case of a multistage Darlington configuration, an intermediate transistor may have its own ancillary coil in series with the others or may be connected to a tap on the counteracting or booster coil feeding the input transistor.

REFERENCES:
patent: 3273050 (1966-09-01), Pratt
patent: 3612909 (1971-10-01), Imabayashi

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