US PATENT SUBCLASS 361 / 154
.~.~.~ Including means to establish plural distinct current levels (e.g., high, low)

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
143  DF  .~ Systems for magnetizing, demagnetizing, or controlling the magnetic field {5}
152  DF  .~.~ Including particular drive circuit {3}
154.~.~.~ Including means to establish plural distinct current levels (e.g., high, low) {1}
155  DF  .~.~.~.~> With capacitor charging or discharging through coil

DEFINITION

Classification: 361/154

Including means to establish plural distinct current levels (e.g., high, low):

(under subclass 152) Subject matter wherein the drive circuit includes means to establish plural distinct current levels.

(1) Note. The plural distinct current levels may include, for example, a high initial current to quickly operate the relay and subsequent lesser current value to "hold" the relay operated.