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Title:
CIRCUIT STRUCTURE FOR SUPPRESSING SURGE CURRENT
Document Type and Number:
WIPO Patent Application WO/2019/019505
Kind Code:
A1
Abstract:
A circuit structure for suppressing a surge current, comprising a surge suppression determination circuit (1), a switch control circuit (2), and a self-boosting regulation circuit (3). An output end of the surge suppression determination circuit (1) is connected to the switch control circuit (2), and an output end of the switch control circuit (2) is connected to the self-boosting regulation circuit (3). The switch control circuit (2) and the self-boosting regulation circuit (3) are both connected to a current input end Vin, and an output end of the self-boosting regulation circuit (3) is connected to an input end of the surge suppression determination circuit (1). The output end of the self-boosting regulation circuit (3) is an output end Vout of the entire circuit structure for suppressing a surge current. The circuit structure operates an N-MOSFET in a variable resistance zone to control a current by means of an on-resistance, thereby avoiding a surge current generated at the output end due to the effects of capacitance.

Inventors:
CAO WEIHUA (CN)
Application Number:
CN2017/113869
Publication Date:
January 31, 2019
Filing Date:
November 30, 2017
Export Citation:
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Assignee:
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD (CN)
International Classes:
H02H9/02
Foreign References:
CN102769281A2012-11-07
CN205791499U2016-12-07
CN105356433A2016-02-24
CN102074942A2011-05-25
CN103715649A2014-04-09
US20040004798A12004-01-08
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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