Title:
POWER SUPPLY DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/216661
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent a power management circuit from erroneously switching on the power source that was switched off. Provided is a power supply device (101) comprising a voltage drop detection circuit (20) for detecting a drop in voltage outputted by a PMIC (10) and transmitting to the PMIC (10) a signal indicating the detected output voltage drop. Upon receiving the signal from the voltage drop detection circuit (20), the PMIC (10) interrupts voltage-generating behavior.
Inventors:
TAKEDA MASAHIRO
Application Number:
PCT/JP2018/019540
Publication Date:
November 29, 2018
Filing Date:
May 21, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G05F1/56; H02M3/00
Foreign References:
| JP2009100496A | 2009-05-07 | |||
| JP2013153585A | 2013-08-08 | |||
| JP2014057465A | 2014-03-27 | |||
| JPH10337007A | 1998-12-18 | |||
| JPH01116712A | 1989-05-09 | |||
| JP2010015348A | 2010-01-21 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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