| ??? 03/21/05 16:36 Read: times |
#90147 - flywheel Responding to: ???'s previous message |
A friend of my Dad, who was a senior control engineer with the old Central Electricity Generating board tells the tale from his youth of the first tests of an all-electronic fiendishly expensive state of the (then) art system for closing huge circuit breakers under automatic control when sequencing a large generator on to the line... the solenoid was the size of a big refrigerator.
The first test firing resulted in the destruction of the entire system. All because they forgot the flywheel diode ! Still Juan's problems sound like poor supply reservoir capacitors to me. He's lucky the mosfet is still intact to generate oscillations. Steve |
| 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 |