| ??? 08/22/06 13:24 Read: times |
#122770 - no links, but Responding to: ???'s previous message |
use a current transformer for the current, a voltage transformer for the voltage, rectify both and feed them to 2 ADCs (many '51 derivatives have built-in ADCs). Then calculate the energy using the formula found in any electrical engineering book.
Erik |
| Topic | Author | Date |
| energy meter using microcontrollers | 01/01/70 00:00 | |
| You haven't looked too hard! | 01/01/70 00:00 | |
| no links, but | 01/01/70 00:00 | |
| use a ready made one | 01/01/70 00:00 | |
| Were I the "guide" I would have trouble deciding w | 01/01/70 00:00 | |
| Or use specialized chips | 01/01/70 00:00 | |
| To answer what should be the first question ... | 01/01/70 00:00 | |
| This is for AVRs but worth reading | 01/01/70 00:00 | |
| avr | 01/01/70 00:00 | |
| Project Spec | 01/01/70 00:00 | |
| STPM01 | 01/01/70 00:00 | |
| Have a look at this | 01/01/70 00:00 | |
| And the eval board, for concrete part values... | 01/01/70 00:00 | |
| dsp ic and metering ic | 01/01/70 00:00 | |
| how shocking | 01/01/70 00:00 | |
| Current transformer | 01/01/70 00:00 | |
| MAKE one | 01/01/70 00:00 | |
| Certain not | 01/01/70 00:00 | |
| It all depends... | 01/01/70 00:00 | |
True, however | 01/01/70 00:00 | |
| ebay! | 01/01/70 00:00 |