Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Reexamination Certificate
2007-01-02
2007-01-02
Jackson, Stephen W (Department: 2836)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
C361S159000, C361S160000
Reexamination Certificate
active
10942589
ABSTRACT:
A solenoid drive circuit includes a control circuit which comprises a detector with a resistor for discerning current flow therethrough to produce electric signals that correspond to level of current flow through a solenoid connected to the resistor; an amplifier for amplifying the electric signals from the resistor; and an integrator for integrating the amplified output from the amplifier.
REFERENCES:
patent: 5191504 (1993-03-01), Narisawa et al.
Kanazawa Masaki
Satoh Kiyokatsu
Bachman & LaPointe P.C.
Jackson Stephen W
Sanken Electric Co. Ltd.
Willoughby Terrence
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