Title:
DEVICE FOR DETERMINING ENERGIZATION STATE
Document Type and Number:
WIPO Patent Application WO/2018/062292
Kind Code:
A1
Abstract:
[Problem] To provide a device for determining an energization state, the device being usable without distinction as to direct current or alternating current. [Solution] An alternating-current electric current sensor 10 detects the rise and fall of an electric current flowing through a cable C and outputs a rise detection signal S1 and a fall detection signal S2. A direct-current detection circuit 20A detects the rise detection signal S1 and the fall detection signal S2 outputted from the alternating-current electric current sensor 10 and generates a rise detection pulse signal S4 and a fall detection pulse signal S5, and generates a direct-current detection signal Sd using the detection pulse signals S4, S5. An alternating-current detection circuit 20B, to which at least one of the detection pulse signals S4, S5 is inputted from the direct-current detection circuit 20A, generates an alternating-current detection signal Sa by smoothing the detection pulse signal inputted thereto.
Inventors:
ISHII KAZUO (JP)
Application Number:
PCT/JP2017/035001
Publication Date:
April 05, 2018
Filing Date:
September 27, 2017
Export Citation:
Assignee:
FATOOL CORP (JP)
CIMTOPS CORP (JP)
CIMTOPS CORP (JP)
International Classes:
G01R19/15; H03K17/00
Foreign References:
| JP2005083879A | 2005-03-31 | |||
| JP2009065261A | 2009-03-26 | |||
| JPH06249887A | 1994-09-09 | |||
| JP2004093416A | 2004-03-25 | |||
| JPS61233374A | 1986-10-17 |
Attorney, Agent or Firm:
SANO, Hiroshi et al. (JP)
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