Generation of stable regulating action for power supply circuit e.g. for electric railway - comparing output with reference valve to provide error, and adding to control signals to apply correction for adjustment of supply

摘要

A stable regulation process is provided for use with a supply circuit (2) which is based upon a cross coupled series circuit having two regulators connected by switches and providing output voltages (Uaus1, Uaus2). The voltages are compared (52, 54) with input reference voltages to generate error values which are added to the control signals (Ust1, Ust2) to provide corrected values. The values are introduced into the supply to adjust the generated output. ADVANTAGE - Provides separation of cross series circuits.