Sharing the principle of substitution of rectifier diodes
What is a rectifier diode
Rectifier diode is a type of semiconductor device that can convert alternating current into direct current. Rectifier diodes are widely used in various power rectifier circuits. When we choose a rectifier diode, we mainly consider its maximum reverse working voltage VR, maximum average rectified current IF, maximum reverse working current IR, maximum working frequency fm and reverse Parameters such as recovery time trr.
Principles of rectifier diode substitution
The power supply has low frequency and high frequency. For series-type regulated power supply, this is a kind of power supply that continuously adjusts the voltage drop of the power tube to obtain a stable output voltage when the input or output changes. In the state of linear amplification, this circuit does not require very high reverse recovery time of the rectifier diode, so this power rectifier diode only needs to meet the maximum rectified current. Basic requirements such as the maximum reverse working voltage and maximum reverse working current are sufficient, such as the 1N400X series diodes that we often use.
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