Title:
SWITCH-MODE POWER SUPPLY AND CONTROL APPARATUS OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2017/088799
Kind Code:
A1
Abstract:
The present disclosure provides a control apparatus of a switch-mode power supply and a switch-mode power supply. In the control apparatus of the present disclosure, a short-circuit protection module is set, and when a switching transistor of the switch-mode power supply is turned on, and the short-circuit protection module detects that a voltage across a current sensing resistor of the switch-mode power supply is less than a predetermined value within a predetermined period, that is, the current sensing resistor is short-circuited, the short-circuit protection module generates a short-circuit protection signal, and a driving controller controls the switching transistor to turn off according to the protection signal, thereby switching off the control apparatus, preventing breakdown of the switch-mode power supply, and avoiding erroneous protection.
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Inventors:
HOU YONGJUN (CN)
WANG WENQING (CN)
WANG WENQING (CN)
Application Number:
PCT/CN2016/107136
Publication Date:
June 01, 2017
Filing Date:
November 24, 2016
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
H02H7/125
Foreign References:
| CN104734510A | 2015-06-24 | |||
| CN103401428A | 2013-11-20 | |||
| CN102624240A | 2012-08-01 | |||
| US20130033197A1 | 2013-02-07 |
Other References:
See also references of EP 3381099A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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