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Patent Searching and Data


Title:
POWER SOURCE DORMANCY AND WAKEUP CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/059706
Kind Code:
A1
Abstract:
A power source dormancy and wakeup circuit, comprising a voltage comparison module (10), a logic control module (20), a switch element (30), a voltage detection module (40), a switch detection module (50) and a processor (60). The voltage comparison module (10) is configured to compare a power source voltage and a pre-set low voltage threshold value, and control the logic control module (20) according to the comparison result; the voltage detection module (40) is configured to detect whether the power source voltage is lower than the pre-set threshold value; the switch detection module (50) is configured to detect the state of the switch element (30); the processor (60) is configured to control the logic control module (20) according to whether the power source voltage detected by the voltage detection module (40) is lower than the pre-set threshold value and a detection result of the state of the switch element (30) detected by the switch detection module (50); and the logic control module (20) is configured to drive the switch element (30) to disable or enable a power supply loop of a power source under the control of the voltage comparison module (10) and/or the processor (60). The circuit realizes power source under-voltage protection and energy saving with lower than microwatt ultra-low power consumption after a power source is switched off.

Inventors:
YANG RUI (CN)
LIU JIANYE (CN)
ZHENG HONGLI (CN)
LI YANG (CN)
Application Number:
PCT/CN2016/088378
Publication Date:
April 13, 2017
Filing Date:
July 04, 2016
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H02H3/24
Foreign References:
CN104898476A2015-09-09
CN101295868A2008-10-29
CN201146368Y2008-11-05
CN102097778A2011-06-15
CN203983947U2014-12-03
US4331996A1982-05-25
JPH02241319A1990-09-26
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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