Title:
DC SOLID STATE RELAY
Document Type and Number:
WIPO Patent Application WO/2019/062262
Kind Code:
A1
Abstract:
A solid state relay comprises a DC input positive terminal (Vin+), a DC input negative terminal (Vin-), a DC output positive terminal (Vout+), a DC output negative terminal (Vout-), a control end positive terminal (K+), a control end negative terminal (K-), an isolation circuit (2), a drive circuit (3), a first switch (S1), a second switch (S2), a first diode (D1), and a second diode (D2). A cross connection of double switches and double flyback diodes is used, preventing a sudden change to the energy stored in a load end circuit. A new path is searched for a continuous current flow by means of a flyback diode, and the energy stored in the load end circuit is fed back to a DC grid by means of the path so as to realize no-loss energy recovery. In addition, the product has a small volume and low costs and may be applied in medium and high power scenarios.
Inventors:
YIN XIANGYANG (CN)
WANG BAOJUN (CN)
TAO XIAOLI (CN)
WANG BAOJUN (CN)
TAO XIAOLI (CN)
Application Number:
PCT/CN2018/094817
Publication Date:
April 04, 2019
Filing Date:
July 06, 2018
Export Citation:
Assignee:
MORNSUN GUANGZHOU SCI & TECH (CN)
International Classes:
H03K17/081; H02M1/34; H03K17/687; H03K17/78
Foreign References:
| CN107707229A | 2018-02-16 | |||
| CN207283518U | 2018-04-27 | |||
| CN102158213A | 2011-08-17 | |||
| CN103532365A | 2014-01-22 | |||
| CN1913353A | 2007-02-14 | |||
| CN2678252Y | 2005-02-09 | |||
| US5360979A | 1994-11-01 | |||
| US6806482B2 | 2004-10-19 |
Attorney, Agent or Firm:
GUANGZHOU ZHIYOU PATENT & TRADEMARK AGENCY CO., LTD. (CN)
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