PWM ripples interlocking protection circuit based on CPLD chip

• Main Authors: LIU LERAN, ZHANG JIE, DING WENFANG, JIANG YUNHAO, XI ZIQIANG, GONG LI
• Format: Patent
• Language: Chinese; English
• Published: 27.04.2016
• 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 PWM ripples interlocking protection circuit based on CPLD chip, including programmable delay module D1, programmable delay module D2, programmable delay module D3 and programmable delay module D4, with the integrated module M1 of disjunction gate, with the integrated module M2 of disjunction gate, non - door module NOT1, non - door module NOT2 and external control level selection circuit. The utility model discloses PWM ripples interlocking protection circuit based on CPLD chip can not only realize the interlock function of upper and lower bridge arm PWM ripples, moreover can the accurate controllable blind spot time through the programmable delay module, and save hardware and produced the trouble of changing resistance, electric capacity in the method of blind spot, can realize that different significant levels triggers the drive plate of different companies, different models, nimble convenient, strong adaptability.