The invention discloses a simple anti-theft alarm for an electric bicycle. The simple anti-theft alarm comprises a power source, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a vibration switch, a key switch, a triode, a potentiometer, a first light-emitting diode, a second light-emitting diode, a relay, a loudspeaker and a time base chip. When a theft wants to steel the electric bicycle and causes vibration of the electric bicycle, the vibration switch is automatically switched on, the level of the trigger end of the time base chip is changed to a low level instantly, a monostable circuit starts a transient process, the level of the output end of the time base chip becomes a high level, the triode is switched on, the ends (1 and 2) of a switch of the relay are connected through attraction, the loudspeaker is driven to give an alarm, and the second light-emitting diode emits light; the alarm process can be stopped by pressing down the key switch in the alarm process. At ordinary times, the ends (1 and 3) of the switch of the relay are connected through attraction, and the first light-emitting diode emits light to show than the electric bicycle is on alert. The simple anti-theft alarm for the electric bicycle is simple in structure, low in electricity consumption and high in anti-jamming capacity.


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    Title :

    Simple anti-theft alarm for electric bicycle


    Contributors:
    YANG LIN (author)

    Publication date :

    2015-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62H CYCLE STANDS , Fahrrad- oder Motorradständer



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