A speed regulation drive circuit of an automobile air conditioner blower comprises a signal input end and a blower negative electrode end, the speed regulation drive circuit is arranged between the signal input end and the blower negative electrode end, the speed regulation drive circuit comprises an NMOS tube and a signal control circuit, a drain electrode of the NMOS tube is connected with the blower negative electrode end, a source electrode of the NMOS tube is grounded, and the signal control circuit is connected with the signal input end. A grid electrode of the NMOS tube is connected with a signal input end through a signal control circuit, the signal control circuit comprises a first triode, a second triode and a third triode, a base electrode of the second triode is connected with the signal input end, an emitting electrode is grounded, a collector electrode is connected with positive voltage and is connected with a base electrode of the first triode, and a base electrode of the third triode is grounded. The collector of the first triode is connected with positive voltage, the emitter of the first triode is connected with the collector of the third triode and connected with the grid of the NMOS tube, the base of the third triode is connected with the signal input end, and the emitter of the third triode is grounded. The problems that an air blower control system is large in size and high in cost are solved.

    一种汽车空调鼓风机的调速驱动电路,包括信号输入端、鼓风机负极端,所述信号输入端与鼓风机负极端之间设置调速驱动电路,所述调速驱动电路包括NMOS管、信号控制电路,所述NMOS管的漏极连接鼓风机负极端,源极接地,所述NMOS管的栅极通过信号控制电路连接信号输入端,所述信号控制电路包括第一三极管、第二三极管、第三三极管,所述第二三极管的基极连接信号输入端,发射极接地,集电极连接正电压,且连接第一三极管的基极,所述第一三极管的集电极连接正电压,发射极连接第三三极管的集电极,且通过连接NMOS管的栅极,所述第三三极管的基极连接信号输入端,发射极接地。解决鼓风机控制系统体积大、成本高的问题。


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    Title :

    Speed regulation driving circuit of air blower of automobile air conditioner


    Additional title:

    一种汽车空调鼓风机的调速驱动电路


    Contributors:
    LIU XIAOYANG (author) / SU LING (author) / XIAO LIHUA (author) / SUN YUHANG (author) / ZHOU LIN (author) / GONG CHAO (author) / TANG XIAODONG (author) / QIN TIAN (author)

    Publication date :

    2024-05-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS



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