Title:
CHARGING CIRCUIT FOR ELECTRONIC EQUIPMENT
Document Type and Number:
Japanese Patent JP3499744
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the charging circuit of an electronic equipment suitable for miniaturization with less power consumption.
SOLUTION: This charging circuit for charging a secondary battery 4 incorporated in the electronic equipment 10 or the secondary battery connected to the electronic equipment is provided with a voltage converter 20 for receiving a voltage from an input power source 1 and converting it to a prescribed voltage, and a charging control circuit 3 for receiving the output of the voltage converter and charging the secondary battery 4. Also, the voltage converter 20 has drooping characteristic corresponding to an output current.
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Inventors:
Tomio Takayama
Application Number:
JP13009498A
Publication Date:
February 23, 2004
Filing Date:
May 13, 1998
Export Citation:
Assignee:
富士通株式会社
International Classes:
H02J7/10; G05F1/56; (IPC1-7): G05F1/56; H02J7/10
Domestic Patent References:
| JP1080138A | ||||
| JP851772A | ||||
| JP8126219A | ||||
| JP5153772A | ||||
| JP7107740A |
Attorney, Agent or Firm:
Fujishima Ijima (1 outside)