magpulser
Newbie level 1
I would greatly appreciate any help in finding a simple circuit to accomplish the following...
Here are the requirements:
A very simple digital amp which will accept either an audio or digital (sine, square or triangle wave) signal on the order of 2 - 5V PP AC, or pulsed DC.
This will be used typically to increase the level of the "audio" output of a laptop or desktop PC when running a frequency generator program. May also be used with a pocket sized frequency generator.
1. Frequency response: less than 1Hz to 20kHz
2. Output: 12V peak pulsed DC square wave
3. Duty cycle adjustment: "automatically" providing around 10% at at the lowest frequencies and gradually increasing to 90% at 10kHz.**
4. This circuit should be as simple as possible. I much rather have just a couple small DIP chips than a more accurate circuit requiring a microcontroller.
**This automatic adjustment is not critical and is only required to keep high voltage ignition coils from overheating at very low frequencies and to increase the HV output at the highest frequencies (they don't do so well at around 10kHz)
The high voltage is used to light a large plasma tube (similar to a neon tube), which is pulsed at various audio frequencies. Used for Rife frequency therapy.
Bil
Here are the requirements:
A very simple digital amp which will accept either an audio or digital (sine, square or triangle wave) signal on the order of 2 - 5V PP AC, or pulsed DC.
This will be used typically to increase the level of the "audio" output of a laptop or desktop PC when running a frequency generator program. May also be used with a pocket sized frequency generator.
1. Frequency response: less than 1Hz to 20kHz
2. Output: 12V peak pulsed DC square wave
3. Duty cycle adjustment: "automatically" providing around 10% at at the lowest frequencies and gradually increasing to 90% at 10kHz.**
4. This circuit should be as simple as possible. I much rather have just a couple small DIP chips than a more accurate circuit requiring a microcontroller.
**This automatic adjustment is not critical and is only required to keep high voltage ignition coils from overheating at very low frequencies and to increase the HV output at the highest frequencies (they don't do so well at around 10kHz)
The high voltage is used to light a large plasma tube (similar to a neon tube), which is pulsed at various audio frequencies. Used for Rife frequency therapy.
Bil