#FlybackBattle#Summary of questions and answers on flyback circuits

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#FlybackBattle#Summary of questions and answers on flyback circuits [Copy link]

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Flyback Circuit Q&A Summary

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UC2844 Issues

Here is a 20W output power flyback switching power supply built with UC2844. There is a problem in debugging

Here is a flyback switching power supply circuit built using UC2844. There is a problem

This is a flyback switching power supply circuit built with UC2844 chip. After removing the 1000uF filter capacitor of the 5V main feedback output

Here is a multi-output flyback switching power supply designed using UC2844

OB2269 Issue

Make an adjustable flyback power supply OB2269. There is output on pin 8 at the moment of power-on, but there is no output after a short while.

Slope compensation

Why is slope compensation required in flyback switching power supplies?

EMI Issues

Filter selection for flyback power supply EMI circuit

Capacitor Problem

Flyback switching power supply output capacitance calculation

What is the function of this resistor and capacitor in this flyback switching power supply circuit?

Ask about the flyback power supply

Ask about the flyback power supply

Resistor Problem

How to calculate the voltage divider resistance of the 431 chip, a voltage reference source for a flyback switching power supply?

How to calculate the resistance used in this flyback power supply circuit?

What happens if a flyback switching power supply has an output load that is too large or too small?

What are the functions of several resistors in the flyback power supply circuit?

What is the function of the two resistors in a flyback switching power supply?

Flyback power supply auxiliary power winding series resistor

Debugging Issues

I encountered several new problems when adjusting the flyback power supply board yesterday. Can someone please help me find out what the problem is?

The problem of output voltage drop during flyback power supply test

Flyback power supply question

If the flyback power supply discharges infinitely, will the output voltage continue to rise?

Is it necessary to add a PFC circuit to the 1kv high voltage output of the flyback converter?

Cross Regulation of Flyback Power Supplies

The flyback power supply works normally without load, but restarts when a load is added. What is the reason?

Protection circuit problem

The flyback power supply has encountered several new problems

Waveform problem

I have encountered some problems in the flyback power supply recently. Please help me

simulation

When simulating L1 of the flyback power supply, a rectangular wave always appears. How can I modify it to a peak wave as described in the book?

Transformer Problems

Transformer design of flyback switching power supply

Flyback power transformer problem

Flyback Transformer Design

How to calculate the primary inductance of the flyback power supply switch transformer

Grounding Problems

Please tell me how to ground the flyback power supply

Voltage Problems

Abnormal voltage problem of flyback switching power supply main control chip

Please advise on the power supply problem of the flyback power supply control chip

木犯001号

This Q&A is really well organized!!! There are many questions that newbies may encounter.