| ??? 09/06/08 08:59 Read: times |
#157995 - Not necessarily Responding to: ???'s previous message |
Raj Nambiar said:
If I want to measure both inputs and outputs of a UPS, I will have to use an analog switch and sample inputs and outputs for certain period - 5 or 10 cycles- and resetting energy values between swtiching. You could always use two energy meter chips, couldn't you? I think that could make the design a whole lot simpler - don't know if the costs stack-up for you, though... |
| Topic | Author | Date |
| Energy meter chips for non-energy meter applicatio | 01/01/70 00:00 | |
| Not necessarily | 01/01/70 00:00 | |
| 2 chips... | 01/01/70 00:00 | |
| RS-485 is the answer | 01/01/70 00:00 | |
| SPI is available | 01/01/70 00:00 | |
| How much filtering? | 01/01/70 00:00 | |
| 15 cycles is fine!! | 01/01/70 00:00 | |
| 5 to 6% accuracy | 01/01/70 00:00 | |
| 5 to 6% accuracy ??? | 01/01/70 00:00 | |
Accuracy | 01/01/70 00:00 | |
| APFC not APF | 01/01/70 00:00 |