Data processors regulated current supply - has four-transistor bridge with each transistor controlled via transformer tapping by control signal

摘要

The regulated current supply for data processors, has a bridge formed by the collector-emitter paths of four transistors which are switched over by HF control circuits. Each transistor has its base coupled to the tapping of a transformer secondary winding. The ends of each of the four secondary windings are connected in pairs via a diode across each transistor. The d.c. supply is coupled to the bridge input diagonal, and the control signal for the four transistors is derived from the appearing across the bridge output diagonal. Four control signals are applied in a given phase to the primary windings of the transformers.