Actuator drive circuit

Details Actuator drive circuit Actuator drive circuit

1987-06-04

1988-04-12

Salce, Patrick R.

Electricity: motive power systems

Linear-movement motors

318687, 361152, G05B 1100

Patent

active

047376961

ABSTRACT:
An actuator drive circuit for driving a load using a single power supply. The current drive is not dependent on load impedance characteristics. Drive means provides a voltage across the first terminal and the second terminal during at input signal positive phase, and reverse voltage across the first terminal and the second terminal during a negative phase. A current detection resistor is connected in series with the load, and the voltage across the resistor is input to a differential amplifier. The amplifier output provides feedback to the drive means.

REFERENCES:
patent: 4423361 (1983-12-01), Stenudd et al.
patent: 4446410 (1984-05-01), Yagura et al.
patent: 4527108 (1985-07-01), Enda
patent: 4659969 (1987-04-01), Stupak, Jr.

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