Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIDE-VOLTAGE ALTERNATING CURRENT CIRCUIT SUITABLE FOR HIGH-POWER SWITCH
Document Type and Number:
WIPO Patent Application WO/2022/134239
Kind Code:
A1
Abstract:
The present application provides a wide-voltage alternating current circuit suitable for a high-power switch, capable of operating at a power supply voltage of 110 V, 220 V, or 277 V. The wide-voltage alternating current circuit comprises: a comparator U2, a triode Q2, a double-open double-close relay K4, a reference power supply circuit, a timer circuit, a relay circuit, and a power step-down circuit; a voltage input by the reference power supply circuit to a second pin of the comparator U2 is fixed; when the 110 V, 220 V, or 277 V power supply is connected, the voltage input by the power step-down circuit to the comparator U2 is less than or greater than the voltage at the second pin, the comparator U2 outputs a low level or a high level, and the triode Q2 and the double-open double-close relay K4 are not turned on or turned on, so that C8 and R10 of the timer circuit are suspended or turned on, a voltage input to a timer T1 of the timer circuit is always 110 V, moreover, C9 and C10 of the relay circuit are connected in parallel, or C9 is suspended, the voltages input to relays K1 and K2 of the relay circuit are always 48 V, and the relays K1 and K2 can be attracted.

Inventors:
WEN YI (CN)
Application Number:
PCT/CN2021/071516
Publication Date:
June 30, 2022
Filing Date:
January 13, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NINGBO HAPPY ELECTRICAL CO LTD (CN)
International Classes:
H02J3/00; H02M1/10
Foreign References:
CN101594053A2009-12-02
CN111917315A2020-11-10
CN101853041A2010-10-06
CN211044053U2020-07-17
Attorney, Agent or Firm:
JIANGSU KUNCHENG LAW FIRM (CN)
Download PDF: