Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1992-03-05
1993-11-23
Stephan, Steven L.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323283, 323284, 323285, G05F 140
Patent
active
052647811
ABSTRACT:
An analog circuit provides selectable current control and power limiting for a connected load. A current control loop is combined with a voltage/power control loop to generate a current level signal via an output transistor to control current flow through a load. Current through a load is monitored with the current control loop maintaining current flow through the load at a selected value. If a selected power level is exceeded, the current is reduced by the voltage/power control loop. Voltage monitoring and feedback is used to control the operating power for a power level control operational amplifier and thereby maintain a selected power level. By providing multiple, voltage dependent gains in the voltage feedback loop, a piecewise linear approximation of a desired power curve can be obtained.
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Miller John M.
Spring Harold G.
Berhane Adolf
Ford Motor Company
Godwin Jr. Paul K.
May Roger L.
Stephan Steven L.
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