Timeline for Voltage to PWM Circuit, need to understand frequency
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 14, 2019 at 1:41 | vote | accept | Diznaster | ||
| Nov 3, 2018 at 17:57 | answer | added | Fred Cailloux | timeline score: 0 | |
| Nov 3, 2018 at 17:40 | comment | added | jsotola | 21-28KHz .... you should be able to use the audio input of your computer and an audio recorder such as Audacity to display the waveform audacityteam.org | |
| Nov 3, 2018 at 16:15 | answer | added | G36 | timeline score: 3 | |
| Nov 3, 2018 at 4:36 | comment | added | brhans | Looks like the 555 is being used as a ramp signal generator and the LM393 compares the analog Vin (after jumper & trimpot) to the 555's ramp. Q1, R6, R8, etc probably form a constant(ish) current source to charge the 555's timing cap (probably C2) in order to make a nice straight ramp. | |
| Nov 3, 2018 at 4:10 | history | asked | Diznaster | CC BY-SA 4.0 |