jeevanreddy061
Newbie level 1
Hello Experts,
I am currently working on a PCM Boost Converter. I Know the basic working and operation of this converter. I have designed CPM Boost Converter in LTSpice and its working fine in steady state. But during the transients, i am getting huge spikes. I don't know the reach for this. I tried changing the Compensating network and Error Amplifier but its almost the same expect for the starting ripples being decreased.
I designed it for an input voltage of 5V and output voltage of 24V.
Secondly, i started using a universal op-amp for both Compensator network and EA. I really don't know on what criteria i should be choosing a particular op-amp / Trans-conductance circuit. Any insight on this would be really helpful. (I am not more an analog guy, so layman work description is preferred)
To Sum,
1. On what factors, should i select my op-amp in the feedback network? How to decide on specs of these circuits like Gain, SR, Power Consumption, PM etc etc
2. Reason for such high transient Spikes. (I tried using the Soft-start, but it didn't work out. )
P.S: I am attachign the screenshots of my schematic and Simulation results.
https://obrazki.elektroda.pl/6712203500_1499024463.png
https://obrazki.elektroda.pl/7874037800_1499024463.png
I am currently working on a PCM Boost Converter. I Know the basic working and operation of this converter. I have designed CPM Boost Converter in LTSpice and its working fine in steady state. But during the transients, i am getting huge spikes. I don't know the reach for this. I tried changing the Compensating network and Error Amplifier but its almost the same expect for the starting ripples being decreased.
I designed it for an input voltage of 5V and output voltage of 24V.
Secondly, i started using a universal op-amp for both Compensator network and EA. I really don't know on what criteria i should be choosing a particular op-amp / Trans-conductance circuit. Any insight on this would be really helpful. (I am not more an analog guy, so layman work description is preferred)
To Sum,
1. On what factors, should i select my op-amp in the feedback network? How to decide on specs of these circuits like Gain, SR, Power Consumption, PM etc etc
2. Reason for such high transient Spikes. (I tried using the Soft-start, but it didn't work out. )
P.S: I am attachign the screenshots of my schematic and Simulation results.
https://obrazki.elektroda.pl/6712203500_1499024463.png
https://obrazki.elektroda.pl/7874037800_1499024463.png