AN ESTIMATE OF THE STABILITY OF A HALF-WAVE VOLTAGE CONVERTER WITH A BACKWARD DIODE UNDER CURRENT AND VOLTAGE FEEDBACK

Half-wave voltage converters (HVC) with a backward diode have found in creasingly wide application today in pulsed continuously adjustable se condary power supplies (PSPS). They have a number of advantages, inclu ding the design simplicity of transformerless power circuits. A dual-l oop regulation system is employed to improve the stability of the cont inuously adjustable PSPS; in addition to output voltage feedback, addi tional choke current [1, 2] or switched transistor current [3] feedbac k is introduced in this system. The stability of such a dual-loop PSPS system is estimated by a discrete Laplace transformation in [1, 2]. T he stability of such systems is estimated here for a linear analog mod el taking into account the state variable method based on averaged par ameters [3-5] which considerably simplifies all the theoretical relati ons.