Output protection circuit of a power converter

Details Output protection circuit of a power converter Output protection circuit of a power converter

2011-08-16

2011-08-16

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S052000, C363S053000, C363S084000, C363S089000

Reexamination Certificate

active

08000116

ABSTRACT:
An output protection circuit used for a power converter having an operational amplifier, a diode, a number of voltage-dividing resistors, and a switch tube. In this circuit, the voltage-dividing resistors are connected in series to form a voltage-dividing network, of which one node is connected to a reference level end Vref of a PWM control module of the converter, while the other node is grounded. A voltage dividing point M is coupled to an inverting input end of the operational amplifier AR1.

REFERENCES:
patent: 3808503 (1974-04-01), Hentschel
patent: 3961239 (1976-06-01), Lach
patent: 7042200 (2006-05-01), Chen et al.
patent: 7103394 (2006-09-01), Morphy
patent: 7135845 (2006-11-01), Zverev et al.
patent: 2004/0196013 (2004-10-01), Chen et al.
patent: 2005/0013076 (2005-01-01), Zverev et al.

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