Design of a new type of protection circuit of mine-used intrinsic safety power supply

The paper put forward a design scheme of a new type of protection circuit of mine-used intrinsic safety power supply with LM339 comparator and MAX4080SASA current detection chip based on the analysis of advantages and disadvantages of traditional protection circuit of mine-used intrinsic safety power supply, and analyzed principle and characteristics of the design scheme, which provided a high-quality solution for design of mine-used intrinsic safety power supply.