Hammer drive circuit using power MOSFETs

Details Hammer drive circuit using power MOSFETs Hammer drive circuit using power MOSFETs

1982-09-30

1985-09-10

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307571, 400166, H03K 1760

Patent

active

045408998

ABSTRACT:
An energizing circuit for printer hammer drive coils is provided in which a single MOSFET transistor and a single diode is employed for each drive coil. Two voltage source means, one of which may be a capacitor, are connected in series. The drive coil is connected in series with the single MOSFET transistor and one of the voltage sources and is energized when the transistor is on. The drive coil discharges in a series circuit including the diode and the other of the voltage sources and charges the later voltage source when the transistor is off. An energy recuperation circuit is disclosed for receiving energy from the later voltage source and returning it to the first voltage source.

REFERENCES:
patent: 4262592 (1981-04-01), Araki
Krausse, Electronics, Power MOSFETs Run Directly Off TTL, Aug. 28, 1980, pp. 145-147, vol. 53, No. 19.

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