OUTPUT CONTROLLER

摘要

An output controller connected to an output circuit parallel and including an auxiliary circuit for controlling an adjusting current smaller than the output current at a substantially constant ratio, so as to perform control so that the potential of each terminal of the output circuit may be equal to that of the corresponding terminal of the auxiliary circuit and thereby to control the ratio between the output current and the adjusting current to be constant. The output controller is made up of a bridge having four arms including an output circuit, an auxiliary circuit, a load, and a current detecting circuit or current setting circuit respectively. The difference of potential between each of the terminal of the output circuit and the corresponding terminal of the auxiliary circuit are measured and fed back to change the equivalent impedance of one of the arms. Thus the bridge is controlled to balance.