OM13006,598 NXP Semiconductors, OM13006,598 Datasheet - Page 196

• Manufacturer Part Number: OM13006,598
• Description: BOARD EVAL EM773 METER EU PLUG
• Manufacturer: NXP Semiconductors
• Type: Other Power Managementr

Specifications of OM13006,598

• Design Resources: Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files
• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: EM773FHN33,551
• Interface Type: USB
• Maximum Operating Temperature: + 150 C
• Operating Supply Voltage: 1.8 V to 3.6 V
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Primary Attributes: -
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: EM773, OL2381
• Other names: 568-6681

NXP Semiconductors
UM10415
User manual
16.6.2.4 DeltaPhi1 calibration
16.6.2.5 DeltaPhi2 calibration
The calibration can be verified by checking the measured current I again. This should now
equal Iref2.
The phase error correction angle DeltaPhi1 can be calibrated as follows:
The calibration can be verified by measuring the fundamental reactive power Q1 for this
resistive load again. The fundamental reactive power Q1 should now be reduced towards
0 var for the resistive load.
The phase error correction angle DeltaPhi2 can be calibrated as follows:
The calibration can be verified by measuring the fundamental reactive power Q1 for this
resistive load again. The fundamental reactive power should now be reduced towards 0
var for the resistive load.
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Connect an AC reference voltage source to the meter with the correct voltage and
frequency (e.g. 110V/60Hz or 230V/50Hz).
Set DeltaPhi1 to zero and apply a resistive load (that has no reactive power) to the
meter. Remark: Make sure the current is in the range for I1pp.
Measure the output values for fundamental Reactive Power Q1 and active power P.
The correction value DeltaPhi1 can then be calculated as:
Set this calculated value as DeltaPhi1.
Connect an AC reference voltage source to the meter with the correct voltage and
frequency (e.g. 110V/60Hz or 230V/50Hz).
Set DeltaPhi2 to zero and apply a resistive load (that has no reactive power) to the
meter. Remark: Make sure the current is in the range for I2pp.
Measure the output values for fundamental Reactive Power Q1 and active power P.
The correction value DeltaPhi2 can then be calculated as:
Set this calculated value as DeltaPhi2.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 September 2010
DeltaPhi
DeltaPhi
1
2
=
=
a
a
tan
tan
Chapter 16: EM773 Metrology engine
⎛
⎜
⎝
⎛
⎜
⎝
Q
Q
P
P
1
1
⎞
⎟
⎠
⎞
⎟
⎠
UM10415
© NXP B.V. 2010. All rights reserved.
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