Full -bridge switching power supply circuit

• Main Authors: ZHANG GUOXIANG, PAN YI'AN
• Format: Patent
• Language: Chinese; English
• Published: 25.09.2018
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The utility model provides a full -bridge switching power supply circuit, includes: full -bridge rectifier, first, second switch unit, detecting element, first, the 2nd control module. Full -bridge rectifier has first, the 2nd AC input in order to be coupled alternating current power supply to has first, the 2nd DC output with output DC signal. First, the second end system of first switch elementare coupled respectively in a AC input and the 2nd DC output. First, the second end of second switch unit are coupled respectively in the 2nd AC input and the 2nd DC output. Detecting element is usedfor being coupled to that alternating current power supply is first in order to produce, second source phase signal. A control module is at least according to first reference value, second source phase signal and the switching on of the optionally first switch element of control. The 2nd control module is at least according to second reference value, first power phase signal and the switching on of optionally control secon