Rectifier diode switching circuit and switching characteristics

Rectifier diode switching circuit and switching characteristics description

The switch circuit is a commonly used functional circuit, such as the switch in the lighting circuit in the home, the power switch in various household appliances, etc. Today we will learn about what is a switching circuit called a Rectifier diode and what are its switching characteristics? Let me give you an analysis:

There are two types of switches inswitching circuits:

(1) Mechanical switches, using mechanical switches as components in the switching circuit. (2) Electronic switches, so-called electronic switches, do not use mechanical switching elements, but use devices such as diodes and triodes to form switching circuits.

What are the characteristics of a switching Rectifier diode? The switching rectifier diode is the same as the ordinary diode, and it is also a PN junction structure. The difference is that the switching characteristics of the rectifier diode are required to be better.

When a forward voltage is applied to the switch Rectifier diode, the rectifier diode is in the conduction state, which is equivalent to the on-state of the switch;

When a reverse voltage is applied to the switch rectifier diode, the Rectifier diode is in the off state, which is equivalent to the off state of the switch. The on and off states of the rectifier diode complete the on and off functions.

switching Rectifier diode use this characteristic, and through the manufacturing process, theswitching characteristics are better, that is, the switching speed is faster, the junction capacitance of the PN junction is smaller, the internal resistance when it is turned on is smaller, and the resistance when it is turned off is large.

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