Auxiliary power circuit of power unit

Abstract

Abstract PURPOSE: To reduce a loss of electric power and prime cost by providing a series- connected capacitor and rectifying circuit for an AC power input and by using the rectification output of the rectifying circuit as the auxiliary power source of a power unit. CONSTITUTION: The AC voltage of AC input power source 1 is divided by capacitor C9 and the input impedance of rectifying circuit 8 and applied to circuit 8. Circuit 8 rectifies the input voltage into a direct current, which is supplied to control circuit 5. With the output of circuit 5, power converting circuit 3 is controlled to regulate and stabilize the output, which is applied to load 4. A desired DC voltage can be developed by circuit 8 by properly selecting the reactance of C9 and applied to circuit 5, so that the low-priced auxiliary power circuit with a small power loss can be obtained. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Mitsutake Sato
• 👤 Michio Kono
• 👤 Yoshikatsu Saito

Bibliographic Details