Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1984-07-11
1986-09-02
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
331113A, 363 20, H02M 3335
Patent
active
046099816
ABSTRACT:
The converter comprises an output transformer (T1) through which pass trapezoidal current waves. The primary winding (A0) is supplied under the control of two control circuits (P1, P2), each comprising a transistor (Q1, Q2) and a diode (D1, D2) which are connected in anti-parallel. The two transistors are controlled by two oppositely-poled secondary windings (W1, W2) of a second transformer (T2), the primary winding (W3) of which is controlled by the first transformer (T1). Associated with each control circuit (P1, P2) is a capacitor (C1, C2) such as to accumulate energy during one phase of operation and to discharge it during a subsequent phase. Another winding (Wc) of the second transformer (T2) permits the latter to be biased, stabilizing the output voltages by means of closed-loop feedback control of one thereof.
REFERENCES:
patent: 3539905 (1970-11-01), Schwarz
patent: 3596165 (1971-07-01), Andrews
patent: 4158881 (1979-06-01), Simmons et al.
patent: 4334267 (1982-06-01), Miko
patent: 4424556 (1984-01-01), Maeda et al.
Slack, "Design of Single-Ended DC-DC Converters", Proc. Powercon 2, Oct. 1975, pp. 18-23.
Ing. C. Olivetti & C. S.p.A.
Rebsch D. L.
Salce Patrick R.
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