A series resonant converter comprises an input voltage source Vin, a first power switch tube S1, a second power switch tube S2, a third power switch tube S3, a fourth power switch tube S4, a transformer, a first diode D1, a second diode D2, a resonant inductor LR, a resonant capacitor CR, a blocking capacitor CB, an output capacitor CO and an output load RO. The control method comprises the following steps: 1) assembling the series resonant converter; (2) driving signals of the first power switch tube and the fourth power switch tube are complementary with driving signals of the second power switch tube and the third power switch tube; a switch tube on the secondary side of the transformer is in a synchronous rectification state; the switching frequency fS is increased along with the decrease of the output voltage VOUT by adopting conventional frequency modulation control, the output voltage VOUT is adjusted by controlling the boost duty ratio DB, the output voltage VOUT is adjusted by controlling the duty ratio of the fourth power switch tube, and the control method has the advantages of being easy to operate and high in efficiency.

    一种串联谐振变换器,包括输入电压源Vin、第一功率开关管S1、第二功率开关管S2、第三功率开关管S3、第四功率开关管S4、变压器、第一二极管D1、第二二极管D2、谐振电感LR、谐振电容CR、隔直电容CB、输出电容CO及输出负载RO;控制方法的步骤为:1)组装串联谐振变换器;2)第一功率开关管和第四功率开关管与第二功率开关管和第三功率开关管的驱动信号互补;变压器次级侧的开关管为同步整流状态;3)采用常规的调频控制,开关频率fS随输出电压VOUT的减小而增大;4)输出电压VOUT通过控制升压占空比DB来调节;5)通过控制第四功率开关管的占空比调节输出电压VOUT;具有操作简单,效率高的特点。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Series resonant converter and control method thereof


    Weitere Titelangaben:

    一种串联谐振变换器及其控制方法


    Beteiligte:
    CHEN JINGWEN (Autor:in) / MAO LEI (Autor:in)

    Erscheinungsdatum :

    2022-06-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    Analysis of Series-Parallel Resonant Converter

    Kazimierczuk, M.K. | Online Contents | 1993


    Analysis of series-parallel resonant converter

    Kazimierczuk, M.K. / Thirunarayan, N. / Wang, S. | IEEE | 1993


    PWM control series resonant converter and method for electric vehicle charger

    CHEN JINGWEN / XUE GUANYU | Europäisches Patentamt | 2022

    Freier Zugriff

    A 25-kW Series-Resonant Power Converter

    Frye, R. J. / Robson, R. R. | NTRS | 1986


    Reverse gain control method of resonant converter, resonant converter and storage medium

    BAI GANG / LI HANQI | Europäisches Patentamt | 2022

    Freier Zugriff