paladyn
Newbie level 6
Welcome,
Plans to design an adjustable power supply based on the SG3525 controller with the possibility of voltage regulation ~ 0-30V and current ~ 0-20A.
I have a working power stage, which is able to give over 20A at 30V, while I have a problem with the implementation of the feedback loop.
I use an external LM324 operational amplifier which realizes two feedback loops - voltage and current.
I used a type 3 compensator but the effects do not fully satisfy me. The test load is about 1ohm and at 5V and 5A the transformer is quite loud, as if some of the control runs have disappeared and the asymmetry on the transformer core has been created. at 15V and 15A everything is working quietly.
Can you direct me how the feedback loop should look like so that it is possible to realize my assumptions?
There is a lot of impulse power supplies on the market that work very well in a wide range of output voltages and are very quiet and have very low output noise eg gophert-cps-3205
Plans to design an adjustable power supply based on the SG3525 controller with the possibility of voltage regulation ~ 0-30V and current ~ 0-20A.
I have a working power stage, which is able to give over 20A at 30V, while I have a problem with the implementation of the feedback loop.
I use an external LM324 operational amplifier which realizes two feedback loops - voltage and current.
I used a type 3 compensator but the effects do not fully satisfy me. The test load is about 1ohm and at 5V and 5A the transformer is quite loud, as if some of the control runs have disappeared and the asymmetry on the transformer core has been created. at 15V and 15A everything is working quietly.
Can you direct me how the feedback loop should look like so that it is possible to realize my assumptions?
There is a lot of impulse power supplies on the market that work very well in a wide range of output voltages and are very quiet and have very low output noise eg gophert-cps-3205