Boost-type switching power device

Details Boost-type switching power device Boost-type switching power device

2006-06-20

2006-06-20

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

C361S018000, C363S056100, C363S056070

Reexamination Certificate

active

07064943

ABSTRACT:
A boost-type switching power device which obtains a dc output by connecting a rectifying diode to the output side of an inductance element, connected in series to a main switching element, the device including: a control circuit which controls the operation of the main switching element by using a feedback signal in accordance with the dc output; and a constant-current circuit comprising a plurality of active elements, which are provided between the the rectifying diode and the output terminal; and wherein, when there is an overload on the output side, the operation of the active elements comprising the constant-current circuit controls the control circuit, switching the main switching element off and thereby stopping the boost function, and, in addition, the output is controlled by the constant-current circuit.

REFERENCES:
patent: 3078410 (1963-02-01), Thomas
patent: 3109980 (1963-11-01), Wiley
patent: 4147996 (1979-04-01), Gontowski, Jr.
patent: 4207479 (1980-06-01), Yamamoto et al.
patent: 4389638 (1983-06-01), Gontowski, Jr.
patent: 5596465 (1997-01-01), Honda et al.
patent: 5995386 (1999-11-01), John et al.

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