Timeline for pseudo analog voltage using PWM
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 31, 2016 at 10:53 | answer | added | Autistic | timeline score: 2 | |
| Jan 30, 2016 at 21:59 | comment | added | Steve G | There are lots of articles and application notes available on the internet which cover this in detail. Do a search for "PWM low pass filter design". As a starting point I found this which seems to give a thorough explanation: ti.com/lit/an/spraa88a/spraa88a.pdf | |
| Jan 30, 2016 at 20:42 | comment | added | Transistor | Busy at the moment. Look at How is PWM involved in sound generation. | |
| Jan 30, 2016 at 20:17 | comment | added | user4650623 | can you please explain a little bit using any image? @transistor | |
| Jan 30, 2016 at 20:09 | comment | added | Transistor | Just vary the pulse width and filter the output with an RC filter with R x C approximately equal to the pulse time. Maybe start off by generating a sawtooth: increment the pulse width and when it reaches max reset it to zero. | |
| Jan 30, 2016 at 20:06 | history | asked | user4650623 | CC BY-SA 3.0 |