Boost regulated capacitor multiplier for pulse load

Details Boost regulated capacitor multiplier for pulse load Boost regulated capacitor multiplier for pulse load

1994-08-26

1995-09-19

Lobo, Ian J.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

363 71, 363 17, 323266, G01S 7282, H02M 3335

Patent

active

054519624

ABSTRACT:
A capacitance multiplier/regulator (FIG. 1) stores charge at high voltage across a capacitor (22,32), and capacitance-multiplies current to a load (100) by step-down transformers (26,36), controlled switches (24,34), and rectifiers (28,38). The switch pairs (24a,24b;34a,34b) each switch in antiphase, but the switching phase between the pairs is controlled (FIG. 5) in a feedback manner to controllably generate a voltage across a transformer primary winding (14.sub.p), which couples a feedback-controlled alternating voltage across secondary winding (14.sub.s). The alternating voltage is added to the unregulated voltage by a rectifier (18,20), so the bus voltage is controllably greater than the unregulated input voltage. The feedback controls either the bus voltage or the load voltage. Stress on the switches is reduced by preventing capacitor recharge during a load pulse.

REFERENCES:
patent: 4163926 (1979-08-01), Willis
patent: 4169241 (1979-09-01), Peer et al.
patent: 4234827 (1980-11-01), Willis
patent: 4686615 (1987-08-01), Ferguson
patent: 4686617 (1987-08-01), Colton
patent: 4761722 (1988-08-01), Pruitt
patent: 5038264 (1991-08-01), Steigerwald
patent: 5162982 (1992-11-01), Mentler

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