MODULATED ENERGY CONSERVATIVE CURRENT SUPPLY

摘要

MODULATED ENERGY CONSERVATIVE CURRENT SUPPLY A regulated current source including a large inductance provides desired, average DC current by modulation of an electron switch, such that the inductance is disconnected from the power supply on a regular basis by a clock circuit, and the switch reconnects the power supply when the current in a return path to the inductor has decayed to a desired magnitude. The desired decay current across a resistor is compared with a reference which turns the switch on in the absence of the turn-off signal from a clock As an energy saving adjunct in a deflection amplifier system for a CRT, a bipolar embodiment employing a single large inductance and duplicate other apparatus provides a regulated current of either polarity or zero magnitude, the inductor current being maintained even when providing zero current with the deflection system.