DC to DC converter

Details DC to DC converter DC to DC converter

1978-06-21

1980-01-08

Shoop, William M.

Electric power conversion systems

Current conversion

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

315219, 331112, 363131, H02M 3335

Patent

active

041830806

ABSTRACT:
A blocking oscillator DC to DC converter includes a first transformer which is charged up and provides feedback to a switching transistor on one half of the cycle and discharges stored energy from the secondary during the second half of the cycle. To reduce switching losses the first transformer driven switching transistor is turned off by a control transistor disposed between the switching transistor base and ground, the control transistor being turned on and off according to the charge on a base capacitor charged by the first transformer. A second transformer may be included to control the power across a gap disposed to kill flying insects.

REFERENCES:
patent: 3158751 (1964-11-01), Nelson
patent: 3243794 (1966-03-01), Phillips et al.
patent: 3329867 (1967-07-01), Stearns
patent: 3435320 (1969-03-01), Lee et al.
patent: 3569779 (1971-03-01), Luursema
patent: 3575153 (1971-04-01), Hardin et al.
patent: 3964487 (1976-06-01), Judson
patent: 3989995 (1976-11-01), Peterson
patent: 4005351 (1977-01-01), Blum

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