Isolated low power consumption automatic switching communication device

• Main Authors: LYU JINYE, CHEN HONGQI, WANG ZHAOJIE, CHEN JIAPEI
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• 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; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses an isolated low power consumption automatic switching communication device, and belongs to the technical field of communications. The scheme is as follows: an input end of a power supply interface strong current protection circuit is connected with a power supply interface, and a voltage output end of the power supply interface strong current protection circuit is connectedwith equipment to be powered orderly through a wide voltage power supply step-down circuit, a variable frequency drive push-pull output boost isolating circuit, a low dropout output voltage stabilizing circuit, and a power supply automatic switching voltage-loss-free output circuit; an input end of the power supply automatic switching voltage-loss-free output circuit is connected with a battery;and an RS485 communication strong current protection circuit is connected with an optically coupled isolation communication circuit for two-way communication, and an output end of the optically coupled isolation communication