MCP3909EV-MCU16 Microchip Technology, MCP3909EV-MCU16 Datasheet - Page 93

• Manufacturer Part Number: MCP3909EV-MCU16
• Description: EVALUATION BOARD FOR MCP3909
• Manufacturer: Microchip Technology

Specifications of MCP3909EV-MCU16

• Number Of Adc's: 2
• Number Of Bits: 16
• Sampling Rate (per Second): 15k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±1 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MCP3909
• Silicon Manufacturer: Microchip
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: MCP3909
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2009 Microchip Technology Inc.
3. Four-quadrant reactive energy: metering reactive energy in positive/negative
FIGURE C-7:
Active out (-A)
Active out (-A)
Active out (-A)
Active out (-A)
reactive energy cannot truly reflect the status of reactive energy, whereas
4-quandrant reactive energy measuring gives a true picture of energy exchange.
Reactive energy in four quadrants represents four different reactive energy (see
Figure C-7). And the reactive energy is accumulated depending on which
quadrant it is located.
A－有功电能；R—无功电能；R
A－有功电能；R—无功电能；R
A－有功电能；R—无功电能；R
A－有功电能；R—无功电能；R
Where:
Definition Of 4 Quadrants To Measure Electrical Energy.
R
R
A
R
C
L
图2.4
图2.4
L
L
L
L
—感性无功电能；R
—感性无功电能；R
—感性无功电能；R
—感性无功电能；R
=
=
=
=
III (-R
III (-R
III (-R
III (-R
电能测量四象限定义
电能测量四象限定义
II (R
II (R
II (R
II (R
Reactive in (+R)
Reactive in (+R)
Reactive in (+R)
Reactive in (+R)
Reactive out (-R)
Reactive out (-R)
Reactive out (-R)
Reactive out (-R)
L
L
L
L
Power Calculation Theory
C
C
C
C
)
)
)
)
)
)
)
)
is active energy,
is reactive energy
is inductive reactive energy
s capacitive reactive energy
C
C
C
C
—容性无功电能
—容性无功电能
—容性无功电能
—容性无功电能
IV (-R
IV (-R
IV (-R
IV (-R
I (R
I (R
I (R
I (R
L
L
L
L
Φ
Φ
Φ
Φ
)
)
)
)
C
C
C
C
)
)
)
)
Current vector
Voltage vector
电流向量
电流向量
电流向量
电压向量
电压向量
电压向量
Active in (+A)
Active in (+A)
Active in (+A)
Active in (+A)
DS51723A-page 93