US PATENT SUBCLASS 320 / 157
.~.~ Detection of current or voltage amplitude

Current as of: June, 1999
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320 /   HD   ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING

137  DF  BATTERY OR CELL CHARGING {11}
155  DF  .~ Time control {2}
157.~.~ Detection of current or voltage amplitude {1}
158  DF  .~.~.~> Having solid-state control device {1}

DEFINITION

Classification: 320/157

Detection of current or voltage amplitude:

(under subclass 155) Subject matter including means to measure the magnitude of charging current or the battery or cell voltage to determine the state-of-charge of the battery or cell.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152, for detecting the amplitude of the current or voltage in addition to detecting the thermal condition.

160, for multi-rate charging without time control.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

116, for condition responsive switching systems and subclass 141 for switch actuation with time delay or retardation means.