Blocking oscillator for a reciprocating electromagnetic actuator

Electricity: motive power systems – Reciprocating or oscillating motor

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Details

318128, 318132, 318129, 318114, 318130, 331112, 361210, 361203, H02K 3300, H02K 3302

Patent

active

044646135

ABSTRACT:
A blocking oscillator for a reciprocating electromagnetic actuator having a solenoid coil, a detection coil for generating a control signal in response to a charge in the magnetic field generated by the solenoid coil, a silicon Darlington amplifier responsive to the control signal to control the current through said solenoid coil, and a diode connected in series with the collector of the Darlington amplifier rendering the Darlington amplifier immune to reverse voltage and transient signals.

REFERENCES:
patent: 3293516 (1966-12-01), Maier et al.
patent: 3629674 (1971-12-01), Brown
patent: 3922589 (1975-11-01), Peckingham
patent: 4080552 (1978-03-01), Brown
patent: 4101950 (1978-07-01), Hager et al.
patent: 4122378 (1978-10-01), Brown

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