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Hello Sir, firstly I identify the transfer function of the flyback converter and then identify the transfer function of the compensator circuit then multiply them together to obtain the overall transfer function of the system including the PWM, flyback system and the compensator. Something like...
Hello Sir, may I ask why my overshoot keeps on decreasing as the phase margin decreases? Based on your graph as the phase margin decreases the overshoot increases right? Thank you in advance for the help.
Hello everyone, I'm currently building an LED driver using type one compensation and I simulated the output current with different phase margins and cross-over frequencies to study the response of the system. The result that I got is when the phase margin decreases the cross-over frequency...
Sorry for not stating out clearly. I wanted to ask for the time for the signal in the diagram to be considered as "stable" by using the timing information of the X-Axis?
Hello Sir, as of now does my simulation make sense? Is it normal to have a system which longer transient response for type 3 compensator compared to type 2 compensator?
Hello everyone,
Currently I'm trying to simulate an LED driver with flyback configuration in DCM mode.
The output current is around 0.7A with 18W output power.
The problem that I'm currently facing is that the time to reach steady state is higher when using a type 3 compensator compared to...
Hello everyone, can anyone teach me how to calculate the time required to achieve steady state for a system using LTspice?
The figure is shown below.
Thank you in advance.
Hello everyone, I have some questions that I need everyone's help. How to obtain the io(s) over d(s) as the control loop from the small signal AC model for a flyback converter? Based on the article how did the author get the transfer function for the io(s)/d(s)? I tried getting the transfer...
Hello Sir, I think I will try to create a transformer based on my specification and create the transformer on my own instead of buying the predesigned version. As for the equation to create the transformer I'm thinking of using the method based on this paper but I don't know whether the equation...
Very sorry sir for asking the same thing 🙏. This is because I compared the circuit diagram shown in the datasheet for LT3799 and the parts that are circled in purple show different values when compared with 20W, 4W and 14W LED but the datasheet did not mention the equation to obtain the values...
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