IDX-PRO+VDI

[Orbit]

Error

[h9361]

Here are two Whites schemes !Both one and the other are with two tones. Whites 4 is with a switch and an amplitude amplifier in the tx..

There is no any attachment, check your post.

[h9361]

I just thought of another way. Somewhere on these forums someone presented a sinusoidal TX circuit that could achieve a very high voltage drive with a modest power supply. I don't remember much about it, maybe someone will know what I'm talking about and post a link to the thread.

A friend suggested me the schematic.
I simulated it but my waveform is not correct.

[Orbit]

Both one and the other are with two tones. Whites 4 is with a switch and an amplitude amplifier in the tx..

[pito]

A friend suggested me the schematic.
I simulated it but my waveform is not correct.

increase L2, reduce C2

[Smirnov-Arta]

...

So, "we" end up with a complex, "dirty" signal from the transmitting coil—featuring a "spike" equal to half the amplitude (a spike that will, moreover, pulsate)—which will inevitably affect subsequent processes, so to speak... Maybe it's not worth it?)

[h9361]

Both one and the other are with two tones. Whites 4 is with a switch and an amplitude amplifier in the tx..

Thanks.
About White 4, can you tell me the two Q model?

[Orbit]

Thanks.
About White 4, can you tell me the two Q model?

Bc547 - Bc327

[pito]

So, "we" end up with a complex, "dirty"

A = you not change any thing L or C , B = those are pulses applied to Tx coil , the EMF output is sin, just add Rx coil and look what you have there.

[h9361]

Bc547 - Bc327

Thank, are the three diodes bat42?
I simulated but no signal or multiplying voltage.
I checked oscillator part without multiplying part, it works but its multiplying is not working and its voltage out is 7V, not 17V.

[Orbit]

It's not D17, but the output is 17v dc voltage. The only mistake is the switch connects to 17v or the voltage remains at 8v! The simulation is obviously wrong this circuit works! Diodes are bat42 and 1n 4148 can be used.I have used that voltage converter many times and it always works!Try in the simulation to put 4x7 instead of 560r output tx to the input of the converter.

[h9361]

It's not D17, but the output is 17v dc voltage. The only mistake is the switch connects to 17v or the voltage remains at 8v! The simulation is obviously wrong this circuit works! Diodes are bat42 and 1n 4148 can be used.I have used that voltage converter many times and it always works!Try in the simulation to put 4x7 instead of 560r output tx to the input of the converter.

Thanks.
The switch connects 17VDC or 8VDC to TX osc.
In the my schematic on simulation, i connected TX directly to 17VDC.
The 560R is changed to 4.7K, but simulation has not any output.
Do you think the following schematic is true but simulation can not execute?

[Orbit]

[QUOTE=h9361;n451108]

Thanks.
The switch connects 17VDC or 8VDC to TX osc.
In the my schematic on simulation, i connected TX directly to 17VDC.
The 560R is changed to 4.7K, but simulation has not any output.
Do you think the following schematic is true but simulation can not execute?

[/QUOTSimulations sometimes don't do their job.. This scheme is very understandable for the ac/dc converter to work, the oscillator must work, a lower frequency voltage at 7 to 8khz gives a dc voltage of 15v to 17v.Need 8v on r1, r2 and r3. But I'm not sure the Proteus will do the job and the LC oscillator gives you the frequency!?To make this work 100%, I have done it several times in this way to increase the dc voltage both with idx and with other ib devices.

[h9361]

[QUOTE=Orbit;n451111]

Thanks.
The switch connects 17VDC or 8VDC to TX osc.
In the my schematic on simulation, i connected TX directly to 17VDC.
The 560R is changed to 4.7K, but simulation has not any output.
Do you think the following schematic is true but simulation can not execute?

[/QUOTSimulations sometimes don't do their job.. This scheme is very understandable for the ac/dc converter to work, the oscillator must work, a lower frequency voltage at 7 to 8khz gives a dc voltage of 15v to 17v.Need 8v on r1, r2 and r3. But I'm not sure the Proteus will do the job and the LC oscillator gives you the frequency!?To make this work 100%, I have done it several times in this way to increase the dc voltage both with idx and with other ib devices.

Thanks dear Orbit.
I changed my simulation and measured output voltage with 6.5Khz.
My VDC is 15V.

I have a question about your experience. Do you remember your test result with 8 and 17V?
For example, what was your air-test depth with 8/17VDC than a coin?

[Carl-NC]

About your number 3, can i use the ready inductor as L1?
For testing, do you think i should connect LTX to scope and see its sine form snd amplitude?

Yes, the shielded inductor in your link would be perfect.
Yes, look at the LTX waveform. I would put the circuit in LTSpice to figure out the component values.