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    Hello i have a new post about Arduino for...

    Hello i have a new post about Arduino for beginners at least to give you an idea how to get in in case you are interested. Have a look
    ...
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    Hi i just landed on your thread and went through...

    Hi i just landed on your thread and went through the same issues with my TL494 SMPS. I had the same problem as you had hard to find IR2110 and wanted to go cheap. There is one possible way out, Gate...
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    More microcontroller post

    Hi i got some more post


    STM32Cube MX how to use: https://microcontrollerintro.blogspot.com/2018/08/beginners-guide-to-stm32cubemx.html
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    PIC controlled 907 clone

    I recently found this on ebay:http://www.ebay.com/itm/1PCS-Soldering-iron-handle-24V-50W-for-Soldering-iron-station-907A-852D-936-/232021180398?hash=item36058a3fee:g:bK8AAOSw0HVWBRRH and had a...
  5. New attempt at flyback

    I have gone back to the books and slowly checked out what I was missing. I ended up designing a 12V 1A SMPS using UC3845 5959. Attached is the simetrix v8.0 file I simulated. Any feedback is welcome.
  6. Back again with some better news I got the XR2206...

    Back again with some better news I got the XR2206 switching ready for digital control. To solve the issue I had to use +5v and -5V to power the XR2206. I have used a CD4051 for switching the caps...
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    hi jaydev sorry did not come here a long time....

    hi jaydev sorry did not come here a long time. Yes it works well, I have made it work with 16F877A (a newer version is 16F887), STM32F and lately I got it to work with an STM8S. The PGA3211 behaves...
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    I have a new post about pic microcontrollers for...

    I have a new post about pic microcontrollers for anyone interested http://microcontrollerintro.blogspot.com/2016/05/beginners-guide-to-pic-microcontrollers.html your feedback is welcome
  9. Am back again with more bad news. I did some...

    Am back again with more bad news. I did some other test with CD4051 to control the switching of capacitors for frequency and wave switching. Capacitors above 10nF are too high and buffering is a real...
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    DMM prototype V2

    5829After considering complications simplicity always ends up winning. Attached is a simpler structure I am currently testing block by block it uses a single micro and will be battery powered. I am...
  11. Hi I don't want to deviate you from your project...

    Hi I don't want to deviate you from your project but check my posts here for SMPs there is a low power half bridge I built using EI33+TL494 and Microsim's transformer formula. You should be able to...
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    The coding part for STM32F is here at...

    The coding part for STM32F is here at http://microcontrollerintro.blogspot.com/2016/03/writing-code-for-stm32.html any comments are welcome
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    Following the post I made on introducing STM32F...

    Following the post I made on introducing STM32F another one is currently being prepared to write the code for the STM32F. Stay tuned I will upload once its ready. Its should be ready in a few days
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    Thoughts on a diy multimeter

    I have been thinking of building an instrument lately based on the following: 5770. Its still a thought at the time being. The 16F877A oversampling ADC in the diagram could be for testing purposes...
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    The post on STM32 is ready here...

    The post on STM32 is ready here http://microcontrollerintro.blogspot.com/2016/02/beginners-guide-to-stm32-microcontroller.html I will add another post that covers how to handle the coding
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    Hi demykiko thanks for visiting my blog. What you...

    Hi demykiko thanks for visiting my blog. What you just told me is interesting I will have a look at your posts. By the way there is another post under construction for the STM32 line of...
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    Hi my post covers hardware and software needed as...

    Hi my post covers hardware and software needed as an intro. Your question is vague are you talking about code? If its the case then you need to know what you want to achieve with the microcontroller.
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    Hi I am currently thinking of whether I continue...

    Hi I am currently thinking of whether I continue with using my own FAT library, use FAT FS or change the control from SPI to SDIO. I'll decide and keep posted
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    introduction to microcontrollers

    I have made a post at http://microcontrollerintro.blogspot.com/ for anyone to get a general idea of how to deal with microcontrollers in general and without being manufacturer specific. Its for...
  20. Hi glad to see someone here. If you are...

    Hi glad to see someone here. If you are interested in looking at some "DIY vintage" way of doing this Dave Jones from EEVBlog built one way back in 1990s its somewhere in his blog including the...
  21. inverter partial schematic

    Attached is schematic sorry just started drawing it I need to add some more elements and recheck but at least it gives an idea what am after. If it works out fine i'll put a separate thread on it....
  22. Hi sorry for late reply. Thanks a lot for the...

    Hi sorry for late reply. Thanks a lot for the schematics really useful. I am currently going ahead with my 50Hz version. I have all components lying around and I just did a successful test. The only...
  23. Hi I already did that with 50Hz transformer but...

    Hi I already did that with 50Hz transformer but you won't get a variable voltage. A small test I made shows that my concept seems to be working nice with SG3525. Next test is a higher 50Hz power...
  24. Got the circuit to work after scoping the...

    Got the circuit to work after scoping the circuit. The problem was the mosfet gate resistor which was too high once set properly the current switch off issue got solved. I'll now think of next step...
  25. After some sims i'll redo the transformer with...

    After some sims i'll redo the transformer with lower BMax and see if I get better result
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