Title:
PROTECTIVE CIRCUIT FOR PACHINKO MACHINE
Document Type and Number:
Japanese Patent JP3451379
Kind Code:
B2
Abstract:
PURPOSE: To protect the power supply circuit and the peripheral circuit of a pachinko machine against breakdown due to overheat.
CONSTITUTION: When the level of current being fed to an indicator deviates a predetermined allowable range, an overcurrent detecting circuit 9 causes a chopping timer circuit 5 to generate a chopper signal C and a switching circuit 11 switches an FET 12 based on the period of the chopper signal C to feed power intermittently at a predetermined period.
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Inventors:
Kenkichi Nakajima
Application Number:
JP28759193A
Publication Date:
September 29, 2003
Filing Date:
October 22, 1993
Export Citation:
Assignee:
Peace Co., Ltd.
International Classes:
A63F7/02; G05F1/56; H02H5/04; H02H7/20; H02H9/02; H02H9/04; (IPC1-7): H02H7/20; A63F7/02; H02H9/02; H02H9/04
Domestic Patent References:
| JP62296718A | ||||
| JP4216112A | ||||
| JP363099U | ||||
| JP5696892U | ||||
| JP550943U | ||||
| JP63112355U |
Attorney, Agent or Firm:
Nobuo Kaida (2 outside)
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