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78M6631 Firmware Description Document
UG_6631_078
4
Rev 2
Tables
Table 1: Measurement Equations Definitions ........................................................................................... 7
Table 2: SPI Command Description ....................................................................................................... 17
Figures
Figure 1. Simplified Connection Diagram of a 3-Phase Wye System ........................................................ 5
Figure 2. Simplified Connection Diagram of a 3-Phase Delta System ....................................................... 6
Figure 3. Input Stage Signal Processing Path .......................................................................................... 8
Figure 4. Voltage and Current RMS Calculations ..................................................................................... 9
Figure 5. Power and Power Factor Signal Processing Chain .................................................................. 10
Figure 6. Voltage and Current Harmonics and Fundamental Measurements .......................................... 11
Figure 7. Power Harmonic and Fundamental Measurements ................................................................. 11
Figure 8. 3-Phase System Calibration Test Setup Example .................................................................... 15
