Current controlled solenoid driver

Details Current controlled solenoid driver Current controlled solenoid driver

1990-03-06

1992-05-12

Stephan, Steven L.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361152, H01H 4732, H01H 4722

Patent

active

051133075

ABSTRACT:
An electronic contactor controller circuit able to handle high currents and voltages includes an integrated circuit power circuit switch which provides a measuring output signal representative of the load current to an operational amplifier current to voltage convertor. The output voltage of the operational amplifier is provided to an input of a comparator, and at least one reference voltage, from reference voltage generating circuitry, is provided to the other input of the comparator. The comparator outputs a signal to control a timer circuit, which in turn controls the current switch.

REFERENCES:
patent: 4327394 (1982-04-01), Harper
patent: 4453194 (1984-06-01), Frankeny et al.
patent: 4453652 (1984-06-01), Merkei et al.
patent: 4661766 (1987-04-01), Hoffman et al.
patent: 4667117 (1987-05-01), Nebgen et al.
Data Book L5832, SGS, Jan. 1987, (pp. 554-567).
Preliminary Data Sheet No. PD-9.454, "HEXSense-Current Sense IRC530 C Series Power MOSFET IRC533", International Rectifier (8 pages).

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