Title:
METHOD FOR DETERMINING CONNECTION OR DISCONNECTION OF ALTERNATING CURRENT OF BIDIRECTIONAL CONTROL THYRISTOR
Document Type and Number:
WIPO Patent Application WO/2018/171188
Kind Code:
A1
Abstract:
A method for determining the connection or disconnection of an alternating current of a bidirectional control thyristor, comprising the following steps: when an alternating current of a bidirectional control thyristor is connected, AD signal sampling with respect to pin 1 to pin 3 of the bidirectional control thyristor is performed by a CPU to produce a signal diagram of pin 1 to pin 3, and a threshold is set on the basis of the signal diagram; S2: when in use, the AD sampling of signal values of pin 3 of the bidirectional control thyristor is continued for a preset time, where the preset time is greater than half of an alternating current clock cycle, a determination is made on whether a signal value greater than the set threshold is found among the signal values sampled; if yes, then a current is passing through, and if no, then no current is passing through; and S3: step S2 is repeatedly executed until use is finished. The method, by determining whether a signal value greater than the set threshold is found among the signal values sampled and by repeated and continuous AD sampling and determinations, allows real-time determination of the connection or disconnection of the alternating current of the bidirectional control thyristor, a circuit structure is simple, the determination method is simple, and the determination precision is high.
Inventors:
ZHU SHUDONG (CN)
YNAG CHANGPING (CN)
YNAG CHANGPING (CN)
Application Number:
PCT/CN2017/107516
Publication Date:
September 27, 2018
Filing Date:
October 24, 2017
Export Citation:
Assignee:
SHENZHEN RENAISSANCE TECH CO LTD (CN)
International Classes:
G01R19/25; G01R31/02
Foreign References:
| CN106950418A | 2017-07-14 | |||
| CN106154134A | 2016-11-23 | |||
| CN101149405A | 2008-03-26 | |||
| CN204231318U | 2015-03-25 | |||
| CN101632851A | 2010-01-27 | |||
| CN201821330U | 2011-05-04 | |||
| US20150070034A1 | 2015-03-12 |
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
Download PDF:
Previous Patent: PANEL TESTING DEVICE
Next Patent: METHOD, APPARATUS AND TERMINAL FOR BLOCKING BROWSER ADVERTISEMENT
Next Patent: METHOD, APPARATUS AND TERMINAL FOR BLOCKING BROWSER ADVERTISEMENT