Title:
HOLDING CIRCUIT OF RELUCTANCE APPARATUS AND OPERATING CIRCUIT OF ELECTRIC HOIST USING THAT HOLDING CIRCUIT
Document Type and Number:
Japanese Patent JP2002058287
Kind Code:
A
Abstract:
To provide a holding circuit of reluctance apparatus having a long lifetime, and an operating circuit of electric hoist, in which the operation can be held through simple circuitry and the lifetime is not expired by damage of a contact.
A reluctance apparatus 13 is connected with the series circuit of first and second switches 11, 12 and a phototriac is connected in parallel with the second switch 12. Even if the second switch 12 is opened or closed after the first and second switches 11, 12 are closed and the reluctance apparatus 13 is operated, the reluctance apparatus 13 operates continuously until the first switch 11 is opened.
Inventors:
WATANABE HISATSUGU
Application Number:
JP2000244323A
Publication Date:
February 22, 2002
Filing Date:
August 11, 2000
Export Citation:
Assignee:
KITO KK
International Classes:
B66D1/46; H02P25/18; (IPC1-7): H02P7/54; B66D1/46
Attorney, Agent or Firm:
Takashi Kumagai (1 outside)