Switching circuit and photovoltaic air-conditioning system

The invention relates to the technical field of switch control, in particular to a switch circuit and a photovoltaic air conditioning system. A first input end of a switch detection sub-circuit of theswitch circuit collects a first electrical parameter output by a semiconductor switch sub-circuit, a...

Full description

Saved in:
Bibliographic Details
Main Authors SUN YIJIA, HUANG MENG, DU BIN, FENG SHANGXIAN
Format Patent
LanguageChinese
English
Published 19.03.2021
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BASIC ELECTRONIC CIRCUITRY
BLASTING
ELECTRICITY
HEATING
LIGHTING
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MECHANICAL ENGINEERING
PHYSICS
PULSE TECHNIQUE
RANGES
TESTING
VENTILATING
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:The invention relates to the technical field of switch control, in particular to a switch circuit and a photovoltaic air conditioning system. A first input end of a switch detection sub-circuit of theswitch circuit collects a first electrical parameter output by a semiconductor switch sub-circuit, and a second input end of the switch detection sub-circuit collects a second electrical parameter ofan external circuit. The switch detection sub-circuit determines the working state of the semiconductor switch sub-circuit according to the first electrical parameter and the second electrical parameter, and if the working state is abnormal, the control end of the external circuit controls the output end of the external circuit to stop outputting current. According to the technical scheme provided by the invention, the semiconductor switch is used for replacing a relay, whether the relay is adhered or not does not need to be judged, the problem that the relay cannot be disconnected due to adhesion and incapability of
Bibliography:Application Number: CN202011313689