Bipolar PI MD with GB and DD Coil

[Aziz]

No, impossible!.
No way!
It can't be done! Not in 100 or 1000 years!
Your math is cheating you.
Your AI is halucinating.
There is no free lunch!
All free lunches had been eaten up by me.

Enough motivation now?
Aziz

[Detectorist#1]

Obviously, the schematic is top secret and will be used for making of a big money some day.

[moodz]

Obviously, the schematic is top secret and will be used for making of a big money some day.

[Aziz]

Classified! Classified! Classified! Classified! Classified!

[Detectorist#1]

Perhaps some day pechkata will publish the schematic of NIVA HYBRID, just as eduardo1979 does, for people who enjoy DIY projects.

[pechkata]

Okay. Thanks anyway. I was particularly interested in the schematic for the bipolar pulse generator, which I see you've made with a TC4427 and a TL494. I'll try to draw a schematic based on the PCB layout.

There is also a Pulse version of this.

[Detectorist#1]

Hi pechkata,
The schematic of NIVA HYBRID continue to be top secret. If you have respect to our common efforts in DIY PI designs, post the schematic.

[pechkata]

Hello.
This is the basic scheme.

[eduardo1979]

There is also a Pulse version of this.

Hi Pechkata.
Thanks for the Hybrid generator schematic. If it's not too much trouble, could you also share the schematic for the AF108 Bipolar generator that you use in some detectors? I have the ITMD3 Bipolar-PI schematic, but it uses a microcontroller, and I'd like a Bipolar pulse generator without one, as programming and I aren't very good at it.

Thanks.

[Orbit]

Only the transmitter is bipolar and the processing is VLF at your Pecka, here is a scheme from 2016, similar except that there is no delay during the cycle, i.e. bipolar pulses.-8v =bat negative.

[pechkata]

Hi Pechkata.
Thanks for the Hybrid generator schematic. If it's not too much trouble, could you also share the schematic for the AF108 Bipolar generator that you use in some detectors? I have the ITMD3 Bipolar-PI schematic, but it uses a microcontroller, and I'd like a Bipolar pulse generator without one, as programming and I aren't very good at it.

Thanks.

Hello, Eduardo.
I have already shared them.
There are circuit boards—but no schematics.

[Ruben2000]

Hi pechkata!

Thank you so much for sharing your files!

I wanted to ask you two questions:
1. What MOSFETs did you use in the circles marked in yellow?

2. Did you use the same coils designated in Sascho's schematic?

[pechkata]

Hi pechkata!

Thank you so much for sharing your files!

I wanted to ask you two questions:
1. What MOSFETs did you use in the circles marked in yellow?

2. Did you use the same coils designated in Sascho's schematic?

Hello, Ruben.
Yes – a capacitor in parallel to determine the sweep.
The MOSFET doesn't matter—it doesn't consume power.

The cable to the ignition coils is also important.
The shielding connects to the battery negative terminal.

[Detectorist#1]

Hi pechkata,
The mystery with the real schematic of this project continues to exist. On the PCB, the marked in yellow zones for transistors from Ruben2000 was named as PNP and NPN. But you mention for them as MOSFETs and TC4427 driver usually controls MOS transistors. Full mystery!

[eduardo1979]

Hi pechkata,
The mystery with the real schematic of this project continues to exist. On the PCB, the marked in yellow zones for transistors from Ruben2000 was named as PNP and NPN. But you mention for them as MOSFETs and TC4427 driver usually controls MOS transistors. Full mystery!

I think it refers to P-channel and N-channel MOSFET transistors. IRF740 and IRF9640. If we zoom in on the photo, we can see that the terminals are defined as GDS