Common problems and solutions of rectifier diodes

What problems do rectifier diodes encounter in circuit applications? Many common problems, the solution is very simple.

 rectifier diode common problem 1: What should I do if the rectifier diode is hot?

Answer: The fast recovery rectifier diode is very hot, even if you replace the fast recovery rectifier diode with high power, it is still very hot, in this case, it is recommended that you use the ultra-fast recovery rectifier diode.

rectifier diode FAQ 2: How to calculate the power consumption of rectifier diode?

Answer: rectifier diode accounting power consumption does not have much meaning, it is recommended that you consult the relevant standards, pay attention to the inrush current and uniform current this has a key parameter, because the voltage at both ends of the large electrolysis at the moment of boot is 0, at this time the current that can pass through the diode or bridge is very large, you need to pay attention to whether it is within the range promised in the standard book, and then when it is normal, when the diode or bridge heats up, the uniform current that can be promised to pass through will decrease, which is the same clarification in the standard book.

rectifier diode FAQ 3: What are the common parameters of rectifier diode?

Answer: The common parameters of the rectifier diode include: the highest uniform rectifier current IF, the highest reverse working voltage VR, the largest reverse current IR, the breakdown voltage VR, the highest working frequency fm, the reverse recovery time tre, and the zero bias capacitor CO. It is worth noting that due to the constraints of the manufacturing process, even the same type of diode has a large discrete parameters.