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13 Threads found on edaboard.com: sg3525 Design
It happens to have some sg3525 available and I need to quickly build a buck converter (48V -> 12V). Reading the datasheet, seems like there's no way to control a synchronous buck converter (since the outputs are not complementary). It could be done by putting both outputs in parallel then using an CMOS inverter for the complementary output.
Dear Experts I want to know the smps designing help regarding UC3842, TL494 , sg3525 PWM Controller. which is best for SMPS. where i can find complete design help. how the circuit is design. example how to calculate resistor and capacitor values according to input and output voltage. i want to design my own (...)
Hi, I am searching a library in altium for sg3525 and LMD18200. Can anybody help me?
Dear Members , I have designed pure sine wave inverter using sg3525 and IR2101 . Now at last stage i just want to design LC filter . I have used switching freq 16khz of mosfets . Now i have designed LC filter of this value by using formula , F = 1/(2*PI*SQRT(L*C)), I have used F=50 hz , C=330uF and L = 30.703mH , when i used (...)
hi guys, I intend to design an inverter using sg3525. the problem i have is how i could connect the low voltage disconnect, set frequency at 50hz and control the output voltage. can anyone send me a circuit diagram that can help me achieve this on my email; oduoridave@gmail.com thanks in advance.
Hi..I want the circuit diagram for designing 500W or 1kW inverter with transformer (12V to 220V). Thanks in advance.. Use a PWM chip such as sg3525. Use MOSFETs for driving the transformer. Use feedback to achieve voltage regulation with variations in battery voltage and load. That's the inverter there. Now you just n
Thanks for all!!! Now i have got an outline of the design. I am going to use 12V 135Ah battery and design a 1000W inverter(i don't mind even if it comes for less than 1 hour) The inverter will be a switched mode type. *I will convert first 12V dc to 320V dc(DC-DC converter) using sg3525 ,a High frequency transformer(such as ferrite core) and (...)
Hi Maxpayne, I used push-pull topology with sg3525 and regulated the output with feedback (resistive divider). Then I used PIC12F675 to provide 50Hz pulse with 80% duty cycle to provide modified square wave output. . What is your push pull dc/dc output volt ,?
The sg3525 is simply a PWM chip, not SPWM. Keith
I m using PWM IC sg3525 but problem is this that whwn i use feedback circuitry one phase leg get destructed the mosfet i m using is 2907 have any body a solution for this................?
I don't think so, it is good idea to build a SMPS for multi-outputs with a simple 555 timer. Try to think of using LM3524 or sg3525 etc (PWM based) and design for specifically for SMPS. Any how following is a circuit based on 555 for tube light conversion. You can pick an idea and modify this circuit.(if you insist on 555 only). Second circuit is b
hi i need sg3525 based pushpull converter design examples (transformer, mosfet,etc) pls.................... satya :idea:
sg3525 is another one