The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2020
Filed:
Mar. 13, 2018
Ablic Inc., Chiba-shi, Chiba, JP;
Fumihiko Maetani, Chiba, JP;
ABLIC INC., Chiba, JP;
Abstract
A charge/discharge control circuit includes: a first power supply terminal connected to a first electrode of a secondary battery; a second power supply terminal connected to a second electrode of the secondary battery; a charge control terminal connected to a discharge control switch and a charge control switch; a detection terminal; a control circuit; and an output circuit configured to output a charge control signal from the charge control terminal, and configured to output a first voltage when a charger is connected and the control circuit permits charging, and to output a voltage of the detection terminal which differs from the first voltage when the charger is connected and the control circuit prohibits charging. The output circuit is capable of outputting a voltage of the second power supply terminal which differs from the first voltage when the charger is not connected.