Original title: Circuit diagram of transient suppression diode
With the development of science and technology era, the electronic industry has become a part of our life, and many industries are inseparable from electronic components at present, which has been recognized and favored by the majority of manufacturers, whether in portable electronic consumer products, LED lighting, automotive electronics, communications, signal path protection, military, aerospace navigation systems, or various voltage protection equipment needed for industrial control, it can be seen that, They tend to be more and more refined, miniaturized, integrated and high-frequency, which makes them put forward more scientific and strict requirements for circuit protection schemes such as overvoltage protection, overcurrent protection, surge suppression and electrostatic protection. TVS transient suppression diode is one of the circuit protection devices, so today's small series mainly introduces the working principle of TVS transient suppression diode and the details of circuit symbols are shared as follows.
The symbol diagram of TVS transient suppression diode standard circuit is as follows
The working principle circuit diagram of TVS transient suppression diode is as follows
TVS transient suppression diodes are widely used in the protection of semiconductors and sensitive devices, usually used for the protection of secondary power supply and signal circuits, as well as anti-static, etc. In the practical application of protection scheme, TVS transient suppression diode is connected in parallel with the circuit. When the circuit works normally, it can be seen from the above figure that it is in off state (high impedance state), which does not affect the normal operation of the circuit. When the circuit has abnormal overvoltage and reaches its breakdown voltage, it quickly changes from high impedance state to low resistance state, providing a low impedance conduction path for instantaneous current, and clamping abnormal high voltage within a safe level, thus protecting the protected IC or circuit; When abnormal overvoltage disappears, it returns to high resistance state and the circuit works normally.
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Label: transient suppression diode circuit diagram, transient suppression diode circuit diagram symbol, transient suppression diode schematic diagram
