| ??? 03/21/05 17:37 Read: times |
#90161 - Simple RC-filters might help Responding to: ???'s previous message |
How much current runs through the solenoid? How much current runs into the LPC932 board? May be simple RC filters can do the job. One for the solenoid, another for the LPC932 board.
But in any case you will need this flywheel diode! Current rating of this diode has to do with current running through the solenoid. The peak current through this diode is as high as maximum current through solenoid. From this you can estimate what diode is needed. Take care that this diode is not too slowly. The faster the Fet turns-off the solenoid the faster the flywheel diode must be. This stuff can very well be observed by the help of a simple scope, by the way... Kai |
| Topic | Author | Date |
| LPC932 Oscillating | 01/01/70 00:00 | |
| scope | 01/01/70 00:00 | |
| Scope | 01/01/70 00:00 | |
| BIG electrolytic | 01/01/70 00:00 | |
| Bypass where | 01/01/70 00:00 | |
| Diode ? | 01/01/70 00:00 | |
| No I do not | 01/01/70 00:00 | |
| flywheel diode | 01/01/70 00:00 | |
| Freewheeing Diode | 01/01/70 00:00 | |
| Holy Cow | 01/01/70 00:00 | |
| More Explosions | 01/01/70 00:00 | |
| flywheel | 01/01/70 00:00 | |
| Thank you all! | 01/01/70 00:00 | |
| Flywheel | 01/01/70 00:00 | |
| flywheel. | 01/01/70 00:00 | |
| battery | 01/01/70 00:00 | |
| Did not work | 01/01/70 00:00 | |
| try both LF and HF | 01/01/70 00:00 | |
| 3.3 amd 6.6 | 01/01/70 00:00 | |
| Thats it | 01/01/70 00:00 | |
| LM2937 | 01/01/70 00:00 | |
| what is solarbotics | 01/01/70 00:00 | |
| Excellent | 01/01/70 00:00 | |
| Battery | 01/01/70 00:00 | |
| Simple RC-filters might help | 01/01/70 00:00 | |
| Diode 1N4000 | 01/01/70 00:00 | |
| Will not help | 01/01/70 00:00 | |
| Got it. | 01/01/70 00:00 | |
| Answer needed, please | 01/01/70 00:00 | |
| Whoops! | 01/01/70 00:00 | |
| You don't know the currents?????? | 01/01/70 00:00 | |
| Current ? | 01/01/70 00:00 | |
Found out what currents are flowing? | 01/01/70 00:00 | |
| nope | 01/01/70 00:00 | |
| Ok | 01/01/70 00:00 | |
| Diode type | 01/01/70 00:00 | |
| Oscillations... | 01/01/70 00:00 | |
| aka | 01/01/70 00:00 | |
| Exactly! | 01/01/70 00:00 |