Hello Dear Friends, I need to know dos and do not about my idea. My knowledge with electronics is near Zero but I am doing at DIY projects.
I have a software that generates healing frequencies from 20Hz to 20Khz out of my audio interface, now I need to connect the output signal to tens electrodes to potentially to pass the frequencies to the body. Between this two (audio interface output and the tens electrodes) I need and amplifier.
Here my first thoughts that could make sense or not:
Note: Tens Machines are for pulse muscle stimulation
1. Connect the audio interface output to a 4 channel headphone amp about (10W output max) with individual volume control to the electrodes and stick the electrodes to the skin
2. Connect the audio interlace output to a speaker output of a regular amplifier about 30W, I am not sure the skin will support the speaker output voltage, it could be harmful
BUILDING A AUDIO DEVICE SPECIFIC:
1. Build a device with one or more mono amp(s) boards kind of the attached one found on AliExpress that delivers from 10W to 30W (I GUESS) (photos attached) 6 to 12V POWER and max 3A OUTPUT
2. I need a potentiometer to control IN and/or OUT? which kind? which value? where to connect it?
3. Do I need IN and/or Filters?
4. How to ground the amp inside an aluminum or plastic enclosure?
5. How to feed one or more amps with 6 to 12V converted from a 110V/220V outlet? Does it need to be 3pin or 2pin electric cord?
6. Maybe just a disassembled headphones could be used to carry the frequencies to the tens pad?
7. Last photo is a technical specs of a Tens machine
Maybe audio an amplifier is not the answer and I need your help and guidance.
Kindly,
Paulo
I have a software that generates healing frequencies from 20Hz to 20Khz out of my audio interface, now I need to connect the output signal to tens electrodes to potentially to pass the frequencies to the body. Between this two (audio interface output and the tens electrodes) I need and amplifier.
Here my first thoughts that could make sense or not:
Note: Tens Machines are for pulse muscle stimulation
1. Connect the audio interface output to a 4 channel headphone amp about (10W output max) with individual volume control to the electrodes and stick the electrodes to the skin
2. Connect the audio interlace output to a speaker output of a regular amplifier about 30W, I am not sure the skin will support the speaker output voltage, it could be harmful
BUILDING A AUDIO DEVICE SPECIFIC:
1. Build a device with one or more mono amp(s) boards kind of the attached one found on AliExpress that delivers from 10W to 30W (I GUESS) (photos attached) 6 to 12V POWER and max 3A OUTPUT
2. I need a potentiometer to control IN and/or OUT? which kind? which value? where to connect it?
3. Do I need IN and/or Filters?
4. How to ground the amp inside an aluminum or plastic enclosure?
5. How to feed one or more amps with 6 to 12V converted from a 110V/220V outlet? Does it need to be 3pin or 2pin electric cord?
6. Maybe just a disassembled headphones could be used to carry the frequencies to the tens pad?
7. Last photo is a technical specs of a Tens machine
Maybe audio an amplifier is not the answer and I need your help and guidance.
Kindly,
Paulo
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