Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1983-02-14
1985-12-10
Eisenzopf, Reinhard J.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
361156, 227131, H01H 4732
Patent
active
045583919
ABSTRACT:
An electrically operated stapling apparatus is disclosed having a circuit utilizing a capacitor for driving the solenoid actuator for the apparatus. The circuit includes a fullwave rectifier for charging the capacitor with closely spaced dc pulses and includes circuitry for producing a plurality of charging levels for the capacitor depending upon the number of sheet material to be stapled. A reference circuit is also provided to insure the voltage level of charging is such that the operation of the apparatus is immune to line source voltage fluctuations.
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Chan Patrick S.
Povio Raymond A.
Schroeder Russell G.
Ward Joseph W.
Chiama Bernard A.
Eisenzopf Reinhard J.
Xerox Corporation
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