Title:
Prevention of the input voltage boosting of a battery charger when an input adapter is removed
Document Type and Number:
Japanese Patent JP6224120
Kind Code:
B2
Abstract:
A charging circuit using a switch mode power supply to charge a battery from a connected external power adapter may periodically turn off the switch mode power supply and disconnect its input terminal from the switch mode power supply. A load may be connected to the input terminal. The input terminal is monitored for voltage collapse, indicating whether or not the power adapter is connected.
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Inventors:
O'Brien, Thomas Jay
Spooruk, Christian Gee
Spooruk, Christian Gee
Application Number:
JP2015539964A
Publication Date:
November 01, 2017
Filing Date:
November 01, 2013
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H02J7/00
Domestic Patent References:
| JP2006296118A | ||||
| JP1066272A | ||||
| JP2009284585A |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro