Simple and practical electric vehicle anti-theft alarm circuit diagram
With the increasing awareness of environmental protection, electric vehicles have entered our family in large numbers and become an indispensable means of transportation for some people. How to prevent the theft of electric vehicles is a problem that car owners are very concerned about. For this reason, various types of electric vehicle anti-theft locks have appeared. However, the phenomenon of the theft of electric vehicles is still endless. The higher-level electric vehicle anti-theft locks are difficult to destroy in a short time, and the thieves will drive the electric vehicles to other vehicles and steal them. In this way, the advanced anti-theft locks seem to be powerless. In view of this, we introduce a circuit diagram of an electric car burglar alarm. This article refers to the address: http:// The transmitter transmitter section is powered by relay K and thyristor VS to control the transmitter circuitry. IC1 constitutes an alarm signal circuit. Transistor V and its peripheral components form a radio frequency oscillating circuit that transmits an alarm signal. In the waiting state, the switch S1 is turned on, and the SB1 is turned off (ie, the front lock is locked), K is in the released state, and the alarm transmitter does not work. When the front lock is turned on (ie, SB1 is turned on), VS is triggered to conduct, K is pulled, and the transmitter is turned on. After the SB1 is turned on, the K-2's normally open point will self-lock, and only the S1 alarm can be turned off to end. When K is actuated, its normally closed contact K1 is turned off, and the engine ignition circuit is turned off. The receiver circuit consists of the TDA7010 and the switching amplifiers TWH8778 and TWH68. When IC2 receives the alarm signal, its high level of the mutual pin is amplified by IC3 through IC4 and the alarm sound is released by TWH15. However, the stability of the frequency should be considered, because the 7010 itself does not have a frequency stabilization circuit, and it is necessary to perform more tests during operation, preferably using printed boards and chip components. After parking the vehicle according to the above operation method, the alarm enters the alarm state. During the alarm period, whenever someone unlocks the front lock or moves the vehicle, the alarm will be triggered and the engine power will be cut off to prevent the vehicle from starting until the owner has rushed to insert the ignition key into the ignition lock. The alarm can be released only after the position is closed. Phone Wireless Earphones,Sports Bluetooth Earphone,Best Cheap Wireless Earbuds,Wireless Earbuds For Android Dongguang Vowsound Electronics Co., Ltd. , https://www.vowsound.com