Title:
POWER SOURCE DEVICE
Document Type and Number:
Japanese Patent JPH01310415
Kind Code:
A
Abstract:
PURPOSE:To obtain a simplified power source circuit for the heat countermeasure by providing a relay to interrupt an alternating current input and latch it by detecting the temperature rise in the internal part of a stabilized power source circuit. CONSTITUTION:An alternating current power source is supplied from an alternating current input terminal 22 through a power source switch 23 and a break contact 25 of an excitation coil 24 to a stabilized power source circuit 21 and a constant direct current voltage is outputted to a direct current output terminal 26. A power source is supplied through the coil 24 and the parallel circuit of a temperature abnormality display lamp 28 even to a thermostat 27 to detect the temperature rise of the circuit 21. A make contact 29 of the coil 24 is connected in parallel to the thermostat 27. When the thermostat 27 detects the abnormal temperature rise of the circuit 21 and a contact is closed, the coil 24 is excited, the break contact 25 is opened, the make contact 29 is closed, the alternating current input is interrupted and the lamp 28 lights up. The re-starting of the supply of the alternating current power source is executed by closing the switch 23 again after the power source switch 23 is once released and the coil 24 is demagnetized.
Inventors:
TAKAMURA AKISUKE
Application Number:
JP14039588A
Publication Date:
December 14, 1989
Filing Date:
June 09, 1988
Export Citation:
Assignee:
NEC CORP
International Classes:
G06F1/00; G05F1/10; G05F1/46; (IPC1-7): G05F1/10; G05F1/46; G06F1/00
Domestic Patent References:
| JPS5662033A | 1981-05-27 |
Attorney, Agent or Firm:
Umeo Yamauchi
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