Electromagnet

Details Electromagnet Electromagnet

1982-06-16

1984-03-13

Salce, Patrick R.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

307104, H01H 4700

Patent

active

044371365

ABSTRACT:
An electromagnet having a current detecting device for detecting the current flowing through an electromagnet exciting coil, the output of which is utilized to control the power supplied to the coil to stabilize the current flowing through the coil; the electromagnet further including a separate power supply to supply current to the current detecting device which supplies current to the current detecting device when the electromagnet is not on working.

REFERENCES:
patent: 2787737 (1957-04-01), MacLeish
patent: 3224375 (1965-12-01), Hoff
patent: 3582712 (1971-06-01), Blair
patent: 4061960 (1977-12-01), Lloyd
patent: 4195324 (1980-03-01), Waltz

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