Timeline for Using PWM to create DAC
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Apr 3, 2023 at 2:06 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Nov 29, 2022 at 10:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Jul 11, 2021 at 11:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 19, 2020 at 0:01 | comment | added | user16222 | read up on sigma-delta ADC's and Sinc3 fiters, especially how they are done in analogue | |
| Jun 18, 2020 at 23:56 | answer | added | Ilya | timeline score: 1 | |
| Jun 18, 2020 at 17:05 | comment | added | Andrew | Got it. Thank you guys | |
| Jun 18, 2020 at 16:47 | comment | added | dandavis | the low pass limits the current available to maintain the voltage level, but at 1MHz, you won't need much resistance, especially with a 2-stage. You can use a unity gain amp after the lowpass to beef up the "DAC" current, or a series pass transistor(s) if you can live with the junction drop... | |
| Jun 18, 2020 at 16:45 | comment | added | AJN | "low pass filter acts like an integrator which ideally achieves the same result" This statement is not correct. If the PWM is outputting only zero or positive voltage, the output of the (ideal) integrator will keep increasing and will not decrease. | |
| Jun 18, 2020 at 16:42 | history | asked | Andrew | CC BY-SA 4.0 |