Low-delay-time power conversion circuit and driving circuit therein

• Main Authors: TANG JIANFU, WANG RUOYU, CHEN YAOZHOU
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2021
• 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 discloses a low-delay-time power conversion circuit and a driving circuit therein. The low-delay-time power conversion circuit comprises a driving circuit and a load, wherein the driving circuit generates a switching driving signal to control the load. The driving circuit comprises a switching control circuit; and an output stage circuit which comprises a first power switch, a second power switch and an impedance adjusting circuit. When the switching control circuit controls the switching driving signal to be converted into a first voltage level at a first time point, the first power switch is turned on and is turned off after a preset time period; when the switching control circuit controls the switching driving signal to be converted into a second voltage level at a second time point, the second power switch is turned on. The ending time point of the preset conduction time period of the first power switch is earlier than the second time point, and the resistance value of the impedance adjustin