Title: Low ripple high reliable high-capacity capacitance voltage stabilizing charging circuit
Application Number: 200610089062 Application Date: 2006.08.01
Publication Number: 1905310 Publication Date: 2007.01.31
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02J7/00;G05F1/56;G05F1/569;G05F1/573
Applicant(s) Name: Beijing Univ. of Aerospace Address:
Inventor(s) Name: Wu Jianwen;Huang Biyao
Attorney & Agent: zhou changqi
Abstract:
    The invention discloses a low-ripple high-reliability bulk-capacitor voltage- stabilized charging circuit, where a switch T1 adopts IGBT, a power resistor R3 is connected in series between the emitter of the switch T1 and a charging capacitor C2, the R3 limits starting charging current to protect the C2 and T1 and plays the role in short-circuit protection; a voltage stabilizing tube Z1 prevents overvoltage breakdown of the gate of the T1. And it has stable voltage and low static power consumption, applied to low speed, higher-voltage, bulk-capacitor charging occasions with not high repetition frequencies.
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