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One notable improvement is the presence of the totem-pole drivers in the SG3525. However, when you use a driver circuit/chip, it doesn't matter much then. One advantage of the SG3524 is that it has 2 error amplifiers / comparators. However, both can be used to make reliable circuits with high performance.
You should first read up on some books that cover explanations of SMPS. Once you understand the concepts, you can go on to design the circuits. Three great books that you can use are:
Power Supply Cookbook - Marty Brown
Switching Power Supply Design - Abraham Pressman
Demystifying Switching Power Supplies - Raymond Mack Jr
Hi,
@ manish..Please also try downloading this software from Power Integrations website Please download the Sotware PI Expert.
It will help you in designing the SMPS. Please do see the attached picture.
hi
I am trying to make an smps based sinewave inverter and almost finished one. My parameters are as follows,
capacity- 800 va
transformee- ee55
frequency- 35khz
driver- ir21I have finished the inverter portion but facing problem with battery charging. I am doing it with halfbridgetopology but integration with inverter becomes very tricky and also feedback system also not proper. Can anybody give some useful suggestions?
driver- ir21I have finished the inverter portion but facing problem with battery charging. I am doing it with halfbridgetopology but integration with inverter becomes very tricky and also feedback system also not proper. Can anybody give some useful suggestions?
Which part of the integration are you facing problems with? Use the output of the battery charger to turn off the PWM controller in the inverter. Did you use an overvoltage/undervoltage detection/protection circuitry?
Which feedback are you facing problems with? Of the battery charger or the inverter?
both. Could not control properly the inverter part as DC bus voltage could not keep constant. I am using Pic 16f887. Is it alright? Can you help me? Thanks.
In the DC-DC converter part, does the 16F887 generate the pulses to drive the MOSFETs? Or do you use a dedicated PWM controller? A dedicated PWM controller makes it much easier. Can you upload the schematic?
In dc dc converter part,i am not using any pwm controller rather i using microcontroller to generate pulse. I made a trial version for solar energy where battery charging is not required and with battery charge it became very annoying. . Yes, i will upload the circuit but before that i have to learn how to upload as i am not acquainted with this. Many many thanks for quick reply.
mosfet12
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