Title:
LOAD CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2014/141634
Kind Code:
A1
Abstract:
A load controller (10) is provided with a main switching unit (1), a control circuit (4), and a protection circuit (5). The protection circuit (5) is provided with a varistor circuit (18) and a diode circuit (8). The varistor circuit (18) is provided with a parallel circuit comprising a varistor (7) and a first capacitor (6). The diode circuit (8) is provided with a serial circuit comprising a second capacitor (9) and a first and second Zener diode (11, 12). An anode of the first Zener diode is connected to an anode of the second Zener diode via the second capacitor (9). The varistor circuit (18) and the diode circuit (8) are connected in parallel to the main switching unit (1). The time of response to a lightning surge is shorter in the diode circuit (8) than in the varistor (7).
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Inventors:
KISHIDA TAKASHI
GOTO KIYOSHI
GOTO KIYOSHI
Application Number:
PCT/JP2014/001221
Publication Date:
September 18, 2014
Filing Date:
March 05, 2014
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H02H9/04; G05F1/10; G05F1/445
Foreign References:
JP2010146527A | 2010-07-01 | |||
JPH05207647A | 1993-08-13 | |||
JP2000069664A | 2000-03-03 |
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
Yoshikiyo Nishikawa (JP)
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