Method and system for PFC-PWM hybrid control of CLLC resonant converter
The invention discloses a method and system for PFC-PWM hybrid control of a CLLC resonant converter. The method comprises the following steps: collecting an output voltage and an output current of the CLLC resonant converter, comparing the output voltage and the output current with reference values...
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| creator | HU SIDENG ZHU HAOQI CHEN CHAOFENG |
| description | The invention discloses a method and system for PFC-PWM hybrid control of a CLLC resonant converter. The method comprises the following steps: collecting an output voltage and an output current of the CLLC resonant converter, comparing the output voltage and the output current with reference values respectively, and then obtaining a PFM switching frequency control signal through the adjustment of a PI compensator and a constant current/constant voltage control circuit respectively; carrying out linear function calculation on the PFM switching frequency control signal to obtain a PWM control signal; after the PFM switching frequency control signal passes through the triangular wave carrier circuit, a triangular carrier signal with a set frequency is obtained; and comparing the PWM control signal with the triangular carrier signal to obtain a control signal, and generating a driving signal of the CLLC resonant converter after the control signal passes through a driving circuit. The method can realize zero-volta |
| format | Patent |
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The method comprises the following steps: collecting an output voltage and an output current of the CLLC resonant converter, comparing the output voltage and the output current with reference values respectively, and then obtaining a PFM switching frequency control signal through the adjustment of a PI compensator and a constant current/constant voltage control circuit respectively; carrying out linear function calculation on the PFM switching frequency control signal to obtain a PWM control signal; after the PFM switching frequency control signal passes through the triangular wave carrier circuit, a triangular carrier signal with a set frequency is obtained; and comparing the PWM control signal with the triangular carrier signal to obtain a control signal, and generating a driving signal of the CLLC resonant converter after the control signal passes through a driving circuit. 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The method comprises the following steps: collecting an output voltage and an output current of the CLLC resonant converter, comparing the output voltage and the output current with reference values respectively, and then obtaining a PFM switching frequency control signal through the adjustment of a PI compensator and a constant current/constant voltage control circuit respectively; carrying out linear function calculation on the PFM switching frequency control signal to obtain a PWM control signal; after the PFM switching frequency control signal passes through the triangular wave carrier circuit, a triangular carrier signal with a set frequency is obtained; and comparing the PWM control signal with the triangular carrier signal to obtain a control signal, and generating a driving signal of the CLLC resonant converter after the control signal passes through a driving circuit. 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The method comprises the following steps: collecting an output voltage and an output current of the CLLC resonant converter, comparing the output voltage and the output current with reference values respectively, and then obtaining a PFM switching frequency control signal through the adjustment of a PI compensator and a constant current/constant voltage control circuit respectively; carrying out linear function calculation on the PFM switching frequency control signal to obtain a PWM control signal; after the PFM switching frequency control signal passes through the triangular wave carrier circuit, a triangular carrier signal with a set frequency is obtained; and comparing the PWM control signal with the triangular carrier signal to obtain a control signal, and generating a driving signal of the CLLC resonant converter after the control signal passes through a driving circuit. The method can realize zero-volta</abstract><oa>free_for_read</oa></addata></record> |
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| 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 |
| title | Method and system for PFC-PWM hybrid control of CLLC resonant converter |
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