| ??? 10/29/05 00:18 Read: times |
#103096 - Re Marx Responding to: ???'s previous message |
Hi Jeff,
I experimented with ignition coils a few years ago, and setup a simple fibreoptic-link to read the voltage values. While this seems like 'overkill', I had been 'burnt' by this setup too many times (once actually - but it was enough) to take any chances!!! Anyway, I cannot remember what circuit I used, but you could construct an V/F circuit on the HT side, send the frequency out through a short piece of fibreoptic cable, then re-convert it back to a voltage level at the 'MCU' end. Note: Make sure that your link is long enough for the required isolation! A word of warning: ANY circuit that sources over 50VDC (depending on skin resistance) and more than 10mA of current should be treated as a LETHAL source! Valentin |
| Topic | Author | Date |
| 8051 ds420 in close proximity to HV | 01/01/70 00:00 | |
| Smoking! | 01/01/70 00:00 | |
| Static fields | 01/01/70 00:00 | |
| analog opto isolator | 01/01/70 00:00 | |
| marx | 01/01/70 00:00 | |
| Re Marx | 01/01/70 00:00 | |
| Measure low voltage primary side xmfer | 01/01/70 00:00 | |
| seems to be a good solution | 01/01/70 00:00 | |
| Be warned... | 01/01/70 00:00 | |
| high voltages | 01/01/70 00:00 | |
| ESD protection is no HV protection! | 01/01/70 00:00 | |
| One hand rule | 01/01/70 00:00 | |
| tesla coil | 01/01/70 00:00 | |
| two notres | 01/01/70 00:00 | |
| resistors | 01/01/70 00:00 | |
| Special HV resistor is needed | 01/01/70 00:00 | |
HV resistors | 01/01/70 00:00 |