Title:
POWER SUPPLY CIRCUIT FOR SUPPLYING POWER TO MICROCONTROLLER UNIT
Document Type and Number:
WIPO Patent Application WO/2018/113525
Kind Code:
A1
Abstract:
A power supply circuit for supplying power to a microcontroller unit (MCU) comprises: a MCU, a MCU power supply module coupled to the MCU, a load, and a charging capacitor coupled to two ends of the load. The MCU power supply module is coupled to an input power source, and the MCU power supply module is coupled to the charging capacitor via a MOS tube. The MOS tube is coupled to a parasitic diode. The charging capacitor supplies power to the load when the input power source is turned on, and supplies power to the MCU via the parasitic diode and the MCU power supply module when the input power source is turned off.
Inventors:
DING ZHENFENG (CN)
SHEN JINXIANG (CN)
SHEN JINXIANG (CN)
Application Number:
PCT/CN2017/114926
Publication Date:
June 28, 2018
Filing Date:
December 07, 2017
Export Citation:
Assignee:
SENGLED CO LTD (CN)
International Classes:
H02J9/06
Foreign References:
| CN106787136A | 2017-05-31 | |||
| CN206313523U | 2017-07-07 | |||
| CN202353308U | 2012-07-25 | |||
| CN204696790U | 2015-10-07 | |||
| CN104682394A | 2015-06-03 | |||
| JPH07170676A | 1995-07-04 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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