Current limiting circuit for power packs - has part of output voltage compared with reference voltage depending on output current

摘要

The power pack has current and voltage control and a differential amplifier comparing a part of the output voltage with a reference voltage and controlling the output current through a transistor in accordance with the result of this comparison. The reference voltage source (SQR) is controlled by the power pack output current (Ia), so that the value of the reference voltage (UF) applied to the differential amplifier (OV1) depends on the output current.