| ??? 01/13/10 10:32 Read: times |
#172422 - five volts controlling a hundred Responding to: ???'s previous message |
The circuit is powered with a 12 VDC regulated supply and the triacs switch a little over 200 VAC at 400Hz to light some EL pieces. The EL inverter is powered by the 12 VDC source, the MCU is powered via a 5V regulator. MT1 of the triac connects to logic (and 12 V) ground and MT2 of the triac is connected to the EL piece. The gate of the triac is connected through a 620 Ohm resistor to the port pin of the MCU.
I would hate to waste the customer's time building a prototype to test this out and end up blowing a couple of MCU chips when I was hoping someone here had already tried it and can give me a thumbs up or down. |
| Topic | Author | Date |
| driving a triac with a ATMEL MCU | 01/01/70 00:00 | |
| pull-up or other chip? | 01/01/70 00:00 | |
| probably | 01/01/70 00:00 | |
| five volts controlling a hundred | 01/01/70 00:00 | |
| so i answered | 01/01/70 00:00 | |
| Throwing out the baby? | 01/01/70 00:00 | |
| previous | 01/01/70 00:00 | |
| they need freelancers? | 01/01/70 00:00 | |
| I see | 01/01/70 00:00 | |
| Yep | 01/01/70 00:00 | |
| don't forget about "triac drivers" | 01/01/70 00:00 | |
| my prefered way | 01/01/70 00:00 | |
| Do always use a buffer! | 01/01/70 00:00 | |
| there is an old Philips appnote which ... | 01/01/70 00:00 | |
| incredible | 01/01/70 00:00 | |
Thanks! | 01/01/70 00:00 |