DSPIC33FJ128GP706-E/PT Microchip Technology, DSPIC33FJ128GP706-E/PT Datasheet - Page 86

• Manufacturer Part Number: DSPIC33FJ128GP706-E/PT
• Description: IC DSPIC MCU/DSP 128K 64TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ128GP706-E/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 18x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM300024 - KIT DEMO DSPICDEM 1.1DV164033 - KIT START EXPLORER 16 MPLAB ICD2MA330012 - MODULE DSPIC33 100P TO 84QFPMA330011 - MODULE DSPIC33 100P TO 100QFPDM300019 - BOARD DEMO DSPICDEM 80L STARTERDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32AC164327 - MODULE SKT FOR 64TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design
DS51723A-page 86
According to the definition of power measurement, the active power and reactive power
of the fundamental and each other harmonic can be expressed as:
EQUATION C-39:
EQUATION C-40:
Substituting Equation C-31, C-32, C-33 and C-37 into Equation C-39 and C-40, the
power of each harmonic component can be obtained with the following:
EQUATION C-41:
EQUATION C-42:
Total active power and reactive power can be expressed as:
EQUATION C-43:
EQUATION C-44:
=
=
1
-- - U
2
1
-- - U
2
⋅
⋅
k
k
P
Q
P
Q
I
I
k
k
k
k
k
k
(
(
Q
P
sin
=
=
sin
=
=
total
total
1
-- -
2
U
ϕ
U
ϕ
1
-- -
2
uk
uk
⋅
k
⋅
k
I
(
I
(
=
=
k
sin
u
k
cos
u
cos
sin
ak
ak
k
k
ϕ
∑
∑
i
ϕ
i
∞
=
∞
=
ak
(
(
ik
ak
ik
ϕ
ϕ
0
0
+
+
uk
P
Q
uk
–
–
k
k
u
cos
u
cos
–
–
bk
bk
ϕ
ϕ
i
i
ϕ
ik
ϕ
ik
ik
ik
uk
uk
)
)
)
)
cos
sin
ϕ
ϕ
© 2009 Microchip Technology Inc.
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