PM9105AF
THREE PHASE POWER/ENERGY METERING MODULE
PULSE OUTPUT
FEATURES
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sames
SA9105 APPLICATION NOTE
Performs one, two or three phase power
and energy measurement
Meets the accuracy requirements for
Class 1 AC Watt hour meters
Operates over a wide Temperature
Range
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Uses current transformers for current
sensing
Three pulse rate outputs available
Protected agianst ESD
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DESCRIPTION
The SAMES three phase power/energy metering module, the PM9105AF provides three
pulse rate output options, the frequency of which are proportional to the active power
consumption.
Energy consumption can be determined by the power measurement being integrated
over time.
The method of calculation takes the power factor into account.
The output of this innovative universal three phase power/energy metering circuit is
ideally suited for energy calculations in applications using a µ-controller or mechanical
counter.
The application utilises the SAMES SA9105AF, SA9105EF or SA9105FF three phase
power metering integrated circuits for power measurement.
1/10
4310
PDS038-SA9105-001
Rev. B
13-09-95
SAMES [ SAMES ]
