Switching power supply

Details Switching power supply Switching power supply

1990-07-05

1991-11-12

Stephan, Steven L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 16, 363 91, 363 78, 363132, 333175, 333177, H02M 328

Patent

active

050653016

ABSTRACT:
A switching power supply for controlling an output voltage to a constant value with respect to fluctuations in input or in load, wherein are provided a DC power supply; two dividing capacitors connected in series to both ends of the DC power supply; two semiconductor switches connected in series to both ends of the DC power supply; a transformer having a primary winding, one end of which is connected to a connecting point of the two dividing capacitors; and a T type circuit comprising two inductors connected in series between the connecting point of the two semiconductor switches and the other end of the primary winding; and a capacitor connected between the connecting point of the two inductors and the other end of the primary winding. The control characteristics of the switching power supply are improved by reducing the dependency of the output voltage on fluctuations in the load.

REFERENCES:
patent: 1227114 (1917-05-01), Campbell
patent: 4336584 (1982-06-01), Careglio
patent: 4409647 (1983-10-01), Terkanian
patent: 4415959 (1983-11-01), Vinciarelli
patent: 4674019 (1987-06-01), Martinelli
patent: 4860184 (1989-08-01), Tabisz et al.
patent: 4991075 (1991-02-01), Saitou et al.

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