catching diode的意思|示意

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Catching Diode：Meaning and Usage

Catching diode is a kind of diode with specific purpose in electric circuit. It is also known as reverse eye diode, clamp diode and transient voltage suppression diode (TVS diode). It is used to protect circuit from high-energy transients and spikes.

Generally, a catching diode refers to the diode that carries a voltage higher than the power supply voltage. It is used to prevent the flow of electric current from the load to the power supply when the power supply voltage does not reach the peak of the wave (zero voltage). It can also protect the circuit from voltage spikes such as lightning and static electricity.

Catching diode has two terminals: anode and cathode. The anode is the positive terminal of the diode and the cathode is the negative terminal. When the power supply voltage reaches the peak of the wave (zero voltage) and the current flows from the load to the power supply, the catching diode is forward biased and the electric current is allowed to pass through it. On the contrary, when the power supply voltage does not reach the peak of the wave (zero voltage) and the current flows from the load to the power supply, the catching diode is reverse biased, so electric current is blocked by it.

Catching diode is widely used in electric circuits such as power electronics, computer circuits and electronic devices. In power electronics, it is used to regulate electric current, protect the circuit from damage due to overvoltage, and protect against lightning and static electricity. In computer circuits, it is used to protect the circuit from voltage spikes, high-energy transients, and overvoltage. In electronic devices, it is used to prevent the flow of electric current from the load to the power supply when the power supply voltage does not reach the peak of the wave.

In summary, catching diode is a kind of diode used to protect circuit from high-energy transients and spikes. It has two terminals: anode and cathode. When the power supply voltage reaches the peak of the wave (zero voltage) and the current flows from the load to the power supply, the catching diode is forward biased and the electric current is allowed to pass through it. And when the power supply voltage does not reach the peak of the wave (zero voltage) and the current flows from the load to the power supply, the catching diode is reverse biased and electric current is blocked by it. Catching diode has various applications in power electronics, computer circuits and electronic devices.