Power supply circuit of air quality detector

• Main Authors: LIAO XIANGBING, WU LIPING, FENG PEIYAN, PENG FANG, WANG JIAQING, JIANG XINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to a power supply circuit of an air quality detector. One end of a power supply is connected with the ground, the other end of the power supply is connected with a positive electrode of a diode D1, a negative electrode of the diode D1 is connected with one of parallel points of three parallel capacitors C1, C2 and C3, the other parallel point of the parallel capacitors C1, C2 and C3 is connected to an input end of a voltage stabilizer, a grounding end of the voltage stabilizer is connected with the ground, an output end of the voltage stabilizer is connected with one of parallel points of three parallel capacitors C4, C5 and C6, a fourth pin and a fifth pin of a chip of the voltage stabilizer are respectively connected with a capacitor C7 and an overvoltage protector, the capacitor C7 and the overvoltage protector are further connected with one of parallel points of three parallel capacitors C8, C9 and C10, and the other parallel point of the three parallel capacitors C8, C9 and C10 is c