OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 195
![BOARD EVAL EM773 METER US PLUG](/photos/38/74/387430/om13005_sml.jpg)
OM13005,598
Manufacturer Part Number
OM13005,598
Description
BOARD EVAL EM773 METER US PLUG
Manufacturer
NXP Semiconductors
Type
Other Power Managementr
Specifications of OM13005,598
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
568-6680
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NXP Semiconductors
UM10415
User manual
16.6.2.2 I1pp calibration
16.6.2.3 I2pp calibration
The calibration can be verified by checking the measured voltage V again. This should
now equal Vsource.
The current input measurement range I1pp can be calibrated as follows:
The calibration can be verified by checking the measured current I again. This should now
equal Iref1.
The current input measurement range I2pp can be calibrated as follows:
•
•
•
•
•
•
•
•
•
•
•
Set this new value as Vpp
Calculate the initial value for I1pp with the transfer of the analog input circuit in front of
the Metrology Engine and the input range of the I_HIGHGAIN input of the Energy IC
(V
Connect an AC reference voltage source to the meter with a reference voltage and
frequency (e.g. 110V/60Hz or 230V/50Hz).
Connect a reference load with a known current Iref1. Remark: Make sure the current
is in the range for I1pp.
Measure the output value for current I. The calibrated value for I1pp can then be
calculated as:
Set this new value as I1pp.
Calculate the initial value for I2pp with the transfer of the analog input circuit in front of
the Metrology Engine and the input range of the I_LOWGAIN input of the Energy IC
(V
Connect an AC reference voltage source to the meter with a reference voltage and
frequency (e.g. 110V/60Hz or 230V/50Hz).
Connect a reference load with a known current Iref2. Remark: Make sure the current
is in the range for I2pp.
Measure the output value for current I. The calibrated value for I2pp can then be
calculated as:
Set this new value as I2pp.
SS
SS
to V
to V
DD
DD
All information provided in this document is subject to legal disclaimers.
). Set the parameter I1pp to this initial value.
). Set the parameter I2pp to this initial value.
Rev. 1 — 10 September 2010
I
I
1
2
pp
pp
=
=
I
I
1
2
pp
pp
,
,
initialval
initialval
Chapter 16: EM773 Metrology engine
ue
ue
⋅
⋅
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
I
I
ref 1
ref 2
I
I
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
UM10415
© NXP B.V. 2010. All rights reserved.
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