Using this method (MCU->Hi-Res DAC->Buffer/Amp), you can not only make the digitally controlled power supply of your childhood dreams but you can also turn it into a fully programmable unit that can...
Type: Posts; User: rmteo; Keyword(s):
Re: 12bit Power Supply
Using this method (MCU->Hi-Res DAC->Buffer/Amp), you can not only make the digitally controlled power supply of your childhood dreams but you can also turn it into a fully programmable unit that can...
Re: 12bit Power Supply
That is the purpose of the op-amp/buffer as in the figure below - the DAC provides the Vin. The gain is changed by altering the values of the feedback resistor pair R1, R2. Gain = (R1+R2)/R2.
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Re: 12bit Power Supply
I'm guessing from the thread title that OP is using an external DAC - so PID is not needed. The MCU's I use have a built-in (dual-channel) 12-bit DAC and I have done something similar. The DAC...