Performance analysis of power supply for cosmic ray detector

The KM2A detector of the LHASSO project is located at high altitude. In order to ensure the detection accuracy and sensitivity of the detector, the high and low voltage power supply supplied by the detector should have good stability, and high temperature coefficient, ripple, load adjustment rate, etc. The power supply of KM2A detector is analyzed in this paper. The results show that the high voltage power supply meets the performance index strictly.