[AK5602A]
AK5602A
Energy Metering LSI for multi phase, high accurate application
Operational Summary
Features
Suitable for three phase, 3 wired or 4 wired
AK5602A is one of the most advanced and functional
energy metering or energy monitoring application
LSIs for multi phase energy measurement.
Provide less than 0.1 % active & reactive energy
Current and voltage signals through CT, Hall sensor, or
error over a dynamic range of 1000 to 1,
Shunt Resistors are converted into digital signal with
compatible with IEC 0.5S
18bit ADC.
Provide instantaneous active power, reactive
Instantaneous voltage and current in each phase is
power and apparent power
multiplied and is added in total phases.
Provide voltage RMS, current RMS, voltage
The value changes into active power after passing
instantaneous value, current instantaneous value
through LPF and added with the value of a light load
and power factor in each phase.
register. After this value is compared with the value of
Provide less than 0.5 % voltage RMS, current
rated standard value register, it outputs pulses in
RMS and power factor error
proportion to the calculation.
Provide very accurate 90 degree phase shifter over
Regarding reactive power, input current is precisely
45Hz to 65Hz input frequency range, which is
shift by 90 degree and multiplied with respective voltage
used for reactive power calculation
input signal. It outputs pulses in the same manner of
Provide minute input voltage monitoring function
active power calculation.
And apparent power can be selectively derived from
Wide phase adjust. range between V & I (11
°)
Provide positive and negative power indication
either active power and reactive power calculation or
Built-in temperature sensor
VRMS x IRMS calculation and it outputs pulses as the
Single power supply (3 V or 5V)
result of calculation.
48LQFP
System Block Diagram
C IF
AK5602A
Active Power ( pulse, register )
Reactive Power ( pulse, register )
Apparent Power ( pulse, register )
Voltage RMS value, Current RMS value
Instantaneous voltage value & current value
Power factor
Wide phase adjustment range between
voltage and current (
±11 °
at 50Hz)
Temperature sensor (
°C
: Celsius )
Single voltage power supply ( 3V or 5V)
48P LQFP package
C_IF
C IF
VIF
VIF
VIF
Serial IF
LCD
Comm.
MPU
N
Φ1 Φ2 Φ3
MS1285-E-00
-1-
EEPROM
2011/02
AKM [ ASAHI KASEI MICROSYSTEMS ]
