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Title:
ANALOG ELECTRONIC TIMEPIECE, AND CHARGING METHOD THEREOF
Document Type and Number:
Japanese Patent JPH07294670
Kind Code:
A
Abstract:

PURPOSE: To provide an analog electronic timepiece, which can perform an accurate analog display.

CONSTITUTION: Kinetic energy caused by user's action is converted into the electric energy. The output voltage for charging is outputted from a generating coil 22, and a secondary battery 40 is charged. A motor driving pulse if outputted from a timepiece circuit 70 by using the charging energy of the secondary battery 40, and a hand operating motor is rotated and driven in this analog electronic timepiece. When the voltage of the secondary battery 40 reaches a specified voltage, a bypass circuit for the secondary battery 40 is formed by using a limiter circuit 50, and the overcharge is prevented. A forced cut-off circuit 56 forcibly cuts off the bypass circuit during the output of the motor driving pulses.


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Inventors:
Kitahara, Joji
Oshima, Yasuhiro
Application Number:
JP1994000112272
Publication Date:
November 10, 1995
Filing Date:
April 27, 1994
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
G04C3/14; G04C10/00; H02J7/32; (IPC1-7): G04C10/00; G04C3/14
Attorney, Agent or Firm:
井上 一 (外2名)



 
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