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Saturating Regulator for Lightly Loaded Voltage Supply

IP.com Disclosure Number: IPCOM000051824D
Original Publication Date: 1981-Mar-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Homan, LC Ohnstad, GA [+details]

Abstract

The power supply of Fig. 1 produces a positive DC voltage +V1 at relatively heavy loading, such as +5 V at 5 A, and a negative bias voltage at much lighter loading, e.g., -5 V at 0.2 A. Because of the loading mismatch, the lower-value filter capacitor C2 as compared with C1, the coupling characteristics of transformer X, and the turn-on times of diodes D1 and D2, the -V2 transformer winding will typically exhibit a voltage waveform 10 having an overshoot 11, as illustrated in Fig. 2.