The invention provides a low-power-consumption energy-saving circuit, which comprises capacitors, resistors, a triode and an MCU (Microprogrammed Control Unit) singlechip, the resistors comprise R1, R7, R8 and R9, the capacitors comprise C1, C2, C4, C5, C9 and C17, the inductors comprise L1 and L2, the R1 and R7 are connected in series in the circuit, EC1, EC2, EC3 and EC4 filter a power supply, the C1, C2, C4, C5, C9 and C17 play a role in filtering, Q2 and M1 are switches, Q1 is a switch of M1, the L1 and L2 are inductor filtering and are connected in series in the circuit, and the MCU singlechip is connected in series with the triode. D2 is a reverse protection effect. When an LIN/PWM pin of the MCU does not detect a signal, the IO output port outputs a low level, the Q1 does not work, the M1 does not work and is also in an off state, because the Q2 and the M1 are in an off state, the MCU and the control unit do not have a power supply, the circuit enters a dormant state, the current of the whole loop is less than 1 [mu] A, after the LIN/PWM signal is received, the Q2 works and is in an on state, the MCU is powered on, the IO port output pin outputs a high level, the Q1 works, the M1 is on, and the circuit enters a dormant state. Stable power supply is ensured.

    本发明提供了低功耗节能电路,包括有电容、电阻、三极管和MCU单片机,电阻包括有R1、R7、R8和R9,电容包括有C1、C2、C4、C5、C9和C17,电感包括有L1和L2,其中R1和R7串联在电路中,EC1、EC2、EC3和EC4对电源进行滤波,C1、C2、C4、C5、C9和C17起滤波作用,Q2和M1均为为开关,Q1为M1的开关,L1和L2是电感滤波且串联在电路中,D2是一个反向保护作用。MCU的LIN/PWM脚没有检测到信号,IO输出口输出低电平,Q1不工作,M1不工作,也处于断开状态,由于Q2、M1处于断开状态,所以MCU与控制单元没有供电电源,电路进入休眠状态,整个回路电流小于1μA,当接收到LIN/PWM信号后,Q2工作,处于导通状态,MCU上电,IO口输出脚输出高电平,Q1工作,M1导通,保证供电稳定。


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    Title :

    Low-power-consumption energy-saving circuit


    Additional title:

    低功耗节能电路


    Contributors:
    LI SHENGGAO (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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