Voltage pre-stabilizing module

• Main Authors: LYU ZHEN, SONG YANG, SHI JUHONG, WEI JIAKUN, FU JINGLONG
• Format: Patent
• Language: Chinese; English
• Published: 23.04.2024
• 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 discloses a pre-voltage-stabilizing module which comprises an input detection circuit, an anti-reverse-connection circuit, a clamping circuit, a driving circuit, a logic control circuit and a voltage stabilizing circuit, the pre-voltage-stabilizing module is applied to an input end of a DC/DC power supply, the input detection circuit detects an output voltage state and provides a sampling signal for a post-stage circuit; the anti-reverse-connection circuit is used for protecting reverse connection of an input voltage, the clamping circuit is used for clamping a surge voltage, the driving circuit is used for PWM control and regulation of the clamping circuit for voltage stabilization, and the logic control circuit is used for controlling the PWM duty ratio by inputting a feedback signal and regulating the output voltage stabilizing circuit. And the voltage stabilizing circuit stabilizes post-stage output through the driving circuit and the logic control circuit. The pre-voltage-stabilizing mo