Bipolar PI design

[ivconic]

.................................................. ......................BYV26C.......... STTH1L06
Voltage (V_RRM)...................................... 600V............... 600V
Current (I_F) .............................................1A... .................. 1A
Forward Voltage (V_F @ 1A) ...............~1.7V...............~1.7V
Reverse Recovery Time (t_rr) .............≤50ns.............. ≤30ns

[ivconic]

Ok, I've started work.
I find it easier to find BYV26C instead of STTH1L06 in my inventory.
Is that ok?

[Carl-NC]

I don't recall there were any other changes.

[eduardo1979]

The PCBs have finally arrived!

Mine also arrived after 10 days.

[ivconic]

Before I start soldering the components; Carl, do you have any corrections or suggestions in the meantime?

[ivconic]

The PCBs have finally arrived!

[algan]

Thank you very much Carl, everything is correct.

[Detectorist#1]

Solution -TC4428CPA

[Carl-NC]

In the init code you will want to initialize one of the pulses to be 'On'.


If, for example, you want an inverted TxNPin you would do this:

TxNPin = On;

Then in the interrupt code change the pulse state of TxNPin:


In the 'case 0' section change it to

TxNPin = Off;

and in the 'case 1' section change it to

TxNPin = On;

Since it can be confusing to say the pulse is 'Off' when you are turning it on you might want to change this. In common.h you can add the following:

#define High 1
#define Low 0

Then you can say

TxNPin = Low;
TxNPin = High;

and it will make more sense.

[pechkata]

Hello
I want to try some of this too.
BIPOLAR.rar

[algan]

Currently the Txn and TxP pulses are like in the first picture.
I would like to change one of the pulses to be in the opposite direction like the second picture, but I don't know which part of the code I need to change to get such a result.

[Carl-NC]

can you tell me where in the code I should change only one pulse on the TX to be LOW

What do you mean? You want to invert the TX pulse?

[algan]

Hi, Carl, I'm waiting for my boards to arrive, but I want to try another pulse after testing the original, but can you tell me where in the code I should change only one pulse on the TX to be LOW, and I'll need this to test another generator, but I'll also use your circuit after it.
Thanks.

[ivconic]

Still waiting for the "historical" pcbs to arrive!
Hopefully within the next week... in the meantime I'm wasting my time on nonsense.
...
PIC is much easier to program with Pickit2 and associated "uploading" software.
Once I build the original, it makes sense to continue porting the code to the Atmega.

[Carl-NC]

MPLabX with XC8