The Application of Self Recovery Fuses in Frequency Dividers.rv air conditioner fuse location

　　The protection requirements for the horn system are relatively strict. Ordinary fuses only provide one-time protection in the horn, increasing the repair rate of the product; In addition, additional fuse boxes and wires increase the manufacturer's costs.

　　Also, the fuses used must meet the specifications, as incorrect fuses can damage the horn. Installing circuit breakers is also a solution; However, before they are disconnected, noise will be generated when they begin to disconnect.

　　So, a better choice is a self resetting fuse element. When the self restoring fuse is in the disconnected state (in a high resistance state), it acts as a soft switch and automatically returns to the low resistance path state when the fault is eliminated.

　　This is a cheap and simple intercom circuit design. Some intercom circuits are used to build application integrated circuits. The use of transistors in this circuit makes it convenient to find electronic stores. Even a novice assembler has no difficulty.

　　The circuit consists of a three stage resistor capacitor coupled amplifier. When the ring button S2 is pressed, the amplifier circuit design approaches transistors T1 and T2 to convert into an asymmetric and non-stationary MULTIVIB isolator to generate a ringing signal. The signals of these rings are amplified by transistor T3 and drive the speaker of the earpiece.

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