Hi all!
I am trying to design my own buck converter and have done some research on the subject.
So the typical ICs used are some like the LM2569S for example, but it is limited to 3A output.
So I want to create my own buck converter using a high power MOSFET instead.
Now my issue is when it comes to the feedback loop, I need to be able to adjust my PWM duty cycle to keep my output constant when a load is applied etc.
But I am having trouble finding any information about such feedback circuits.
I was looking at using a 555 timer but how would i control my duty cycle with my output voltage?
Can anyone lend a helping hand or point me in the right direction?
I am trying to design my own buck converter and have done some research on the subject.
So the typical ICs used are some like the LM2569S for example, but it is limited to 3A output.
So I want to create my own buck converter using a high power MOSFET instead.
Now my issue is when it comes to the feedback loop, I need to be able to adjust my PWM duty cycle to keep my output constant when a load is applied etc.
But I am having trouble finding any information about such feedback circuits.
I was looking at using a 555 timer but how would i control my duty cycle with my output voltage?
Can anyone lend a helping hand or point me in the right direction?