Title:
SAFETY POWER SUPPLY
Document Type and Number:
Japanese Patent JPS55141922
Kind Code:
A
Abstract:
The power supply comprises a circuit-breaker device whose winding 20 controls a magnetic circuit 21 able to unlock the normally closed contacts 211 and 212, but normally stressed on opening. A thyristor 16 is mounted between the local earth terminal 5 of a user appliance and the earth line, by its gate-cathode circuit, in series with a resistor 14. A diode 12 is reverse-mounted between the gate and the cathode of the thyristor, whereas a non-linear element 19 of the metal oxide varistor type is placed between the terminal 5 and the earth line in order to avoid overloads at the terminals of the thyristor 16 and ensure correct operation of the latter. Domestic applications.
Inventors:
MATSUKUSU OZUMONDO
Application Number:
JP4474780A
Publication Date:
November 06, 1980
Filing Date:
April 07, 1980
Export Citation:
Assignee:
OSMOND MAX
International Classes:
H02H3/14; H02H3/16; H02H11/00; H02H7/00; (IPC1-7): H02H3/16; H02H11/00
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