Microchip Technology ARD00330 データシート
Meter Calibration
© 2011 Microchip Technology Inc.
DS51964A-page 45
2.4.10
Flow Chart for RMS Calibration
Put meter in
Calibration Configuration C5
(V
B
and 1/10 I
B
at PF = 1)
End
Is
CAL_MODE
bit 1 low?
Read contents of
RAW2_I_RMS and
RAW2_V_RMS registers
(referred to as IR2 and VR2
in equation set)
NO
YES
Calculate and Write OFFSET_I_RMS,
OFFSET_V_RMS, GAIN_I_RMS,
GAIN_V_RMS, calibration register
contents based equations in
Fetch values from Calibration
Configuration C1
Set MODE1 register bits
and LINE_CYC register