Hi, does mean that I need both IR213X and PIC16F628A to achieve this? Can I just use PIC16F877A to do the project? As I wish I can just use 1 micro-controller to operate the project. And if PIC16F877A able to do this task, I will now start learning the basic of PIC16F877A.

 

From what I have seen, the PIC16F877A is the PIC16F628A’s bigger brother with more I/O and uses the same instructions. If you are equipped to program a 16F84, you can probably use it on these chips. Go for it!

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I see. So that the PIC16F series use the same instruction set. I can learn by using any PIC16F micro-controller, then apply what i learn on other PIC16F model.

 

Actually the wrong way round! the 628 is the 877's little brother, the 877 came out a LONG time before the 628. If I recall correctly the 877 was only the second EEPROM PIC to be released (after the 16C(F)84) - and caused a great deal of excitement at the time.

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Just so I don’t get you in trouble if you are using these bit patterns.
Some of those IR103X chips use active low logic so you need to invert the bit patterns that I posted earlier. Turn on the low side for each phase first, then for PWM, alternate between low side only and both low and high.

Inverted for active low logic.
-------- Low only ---------- both low and high
Phase 1 111011 ---------- 111001
Phase 2 101111 ---------- 101101
Phase 3 101111 ---------- 100111
Phase 4 111110 ---------- 110110
Phase 5 111110 ---------- 011110
Phase 6 111011 ---------- 011011
(I had to put the dashes in to keep the columns formatted.)
I used Nigel’s second tutorial on LEDs at a template. It doesn’t take much modification to drive a 3 phase motor. Use the LEDs to confirm that it is doing what you want it to before using a IR103X chip. His Main board 3 is for the 16F877.
You might actually do this in a week if you can get parts that fast.

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Is there I need a PIC microcontroller and IR103X chip, then this project is easier? If only use a PIC microcontroller, then is more difficult to complete this project?

 

If you just use the PIC, then you have to make your own boot strap circuits to drive the 3 high side, N channel MOSFETs. I did it. That is why the positive logic on the first bit patterns. But it will take more than a week.

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Hi ClydeCrashKop, thank you for your information.

I wonder if there is any example code similar to the project of soft start SCR gate trigger? As I think it will be easier if I have some sample code to learn from.