Hi,
I'm more of a digital/microcontroller guy, so I'm sort of out of my league here ...
for some experiment, I'm looking for some circuit that will generate some sine(ish) A/C from D/C input, if possible with adjustable frequency (1-100Hz would be fine I guess), adjustable voltage (step-down only, 9-12V A/C would be enough with an input of up to 30V DC), and if possible a DC offset (e.g., 9V A/C +/- 9V D/C). Amps don't need to be very high, some 20-40mA should do nicely ...
Adjustments via potentiometer would be OK, though it would be cool if the settings could be adjusted digitally (e.g. microcontroller etc.), allowing for some semi-automated tests.
Any suggestions as to how to implement something like this?
I'm more of a digital/microcontroller guy, so I'm sort of out of my league here ...
for some experiment, I'm looking for some circuit that will generate some sine(ish) A/C from D/C input, if possible with adjustable frequency (1-100Hz would be fine I guess), adjustable voltage (step-down only, 9-12V A/C would be enough with an input of up to 30V DC), and if possible a DC offset (e.g., 9V A/C +/- 9V D/C). Amps don't need to be very high, some 20-40mA should do nicely ...
Adjustments via potentiometer would be OK, though it would be cool if the settings could be adjusted digitally (e.g. microcontroller etc.), allowing for some semi-automated tests.
Any suggestions as to how to implement something like this?