参数资料
| 型号： | ADE7116ASTZF8 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 68/152页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 64-LQFP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 160 |
| 输入阻抗： | 770 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 2V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 4mA |
| 电源电压： | 2.4 V ~ 3.7 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页当前第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Reactive Power Gain Calibration
Figure 72 shows the signal processing chain for the ADE7169/
ADE7569 reactive power calculation. As explained in the
Reactive Power Calculation (ADE7169/ADE7569) section, the
reactive power is calculated by applying a low-pass filter to the
instantaneous reactive power signal. Note that, when reading
the waveform samples from the output of LPF2, the gain of the
reactive energy can be adjusted by using the multiplier and by
writing a twos complement, 12-bit word to the var gain register
(VARGAIN[11:0], Address 0x1E). Equation 25 shows how the
gain adjustment is related to the contents of the var gain register.
Output VARGAIN =
(MIRQSTL, Address 0xDC) records when a change of sign has
occurred according to the VARSIGN bit (Bit 5) in the
ACCMODE register (Address 0x0F). If the VARSIGN bit is set
in the Interrupt Enable 1 SFR (MIRQENL, Address 0xD9), the
8052 core has a pending ADE interrupt. The ADE interrupt stays
active until the VARSIGN status bit is cleared (see the Energy
Measurement Interrupts section).
When VARSIGN (Bit 5) in the ACCMODE register (Address
0x0F) is cleared (default), the VARSIGN flag (Bit 4) in the
Interrupt Status 1 SFR (MIRQSTL, Address 0xDC) is set when
a transition from positive to negative reactive power occurs.
When VARSIGN in the ACCMODE register (Address 0x0F) is
? Reactive Power × ? 1 +
? ?
? ? VARGAIN ? ?
? ? 2 12 ? ?
The resolution of the VARGAIN register is the same as the
WGAIN register (see the Active Power Gain Calibration
(25)
set, the VARSIGN flag in the Interrupt Status 1 SFR (MIRQSTL,
Address 0xDC) is set when a transition from negative to positive
reactive power occurs.
Reactive Power No Load Detection
section). VARGAIN can be used to calibrate the reactive
power (or energy) calculation in the ADE7169/ADE7569.
Reactive Power Offset Calibration
The ADE7169/ADE7569 also incorporate a reactive power
offset register (VAROS[15:0], Address 0x21). This signed, twos
complement, 16-bit register can be used to remove offsets in the
reactive power calculation (see Figure 72). An offset can exist in
the reactive power calculation due to crosstalk between channels
on the PCB or in the IC itself. The offset calibration allows the
contents of the reactive power register to be maintained at 0
when no power is being consumed.
The 256 LSBs (VAROS = 0x100) written to the reactive power
offset register are equivalent to 1 LSB in the WAVMODE register
(Address 0x0D).
Sign of Reactive Power Calculation
Note that the average reactive power is a signed calculation.
The phase shift filter has ?90° phase shift when the integrator
is enabled, and +90° phase shift when the integrator is disabled.
Table 46 summarizes the relationship of the phase difference
between the voltage and the current and the sign of the resulting
var calculation.
Table 46. Sign of Reactive Power Calculation
The ADE7169/ADE7569 include a no load threshold feature on
the reactive energy that eliminates any creep effects in the
meter. The ADE7169/ADE7569 accomplish this by not
accumulating reactive energy when the multiplier output is
below the no load threshold. When the reactive power is below
the no load threshold, the RNOLOAD flag (Bit 1) in the Interrupt
Status 1 SFR (MIRQSTL, Address 0xDC) is set. If the RNOLOAD
bit (Bit 1) is set in the Interrupt Enable 1 SFR (MIRQENL,
Address 0xD9), the 8052 core has a pending ADE interrupt. The
ADE interrupt stays active until the RNOLOAD status bit is
cleared (see the Energy Measurement Interrupts section).
The no load threshold level is selectable by setting the
VARNOLOAD bits (Bits[3:2]) in the NLMODE register
(Address 0x0E). Setting these bits to 0b00 disables the no load
detection, and setting them to 0b01, 0b10, or 0b11 sets the no
load detection threshold to 0.015%, 0.0075%, and 0.0037% of
the full-scale output frequency of the multiplier, respectively.
REACTIVE ENERGY CALCULATION
(ADE7169/ADE7569)
As for active energy, the ADE7169/ADE7569 achieve the
integration of the reactive power signal by continuously
accumulating the reactive power signal in an internal, nonreadable,
49-bit energy register. The reactive energy register (VARHR[23:0],
Angle
Between 0 ° to +90 °
Between ?90 ° to 0 °
Between 0 ° to +90 °
Between ?90 ° to 0 °
Integrator
Off
Off
On
On
Sign
Positive
Negative
Positive
Negative
Address 0x04) represents the upper 24 bits of this internal
register. The VARHR register and its function are available for
the ADE7169/ADE7569 only.
The discrete time sample period (T) for the accumulation register
in the ADE7169/ADE7569 is 1.22 μs (5/MCLK). As well as
Reactive Power Sign Detection
The ADE7169/ADE7569 detect a change of sign in the reactive
power. The VARSIGN flag (Bit 4) in the Interrupt Status 1 SFR
calculating the energy, this integration removes any sinusoidal
components that may be in the active power signal. Figure 72
shows this discrete time integration or accumulation. The
reactive power signal in the waveform register is continuously
added to the internal reactive energy register.
Rev. B | Page 68 of 152
相关PDF资料 |
PDF描述 |
|---|---|
| ADE5166ASTZF62-RL | IC METER/8052/RTC/LCD DRV 64LQFP |
| ADE5166ASTZF62 | IC METER/8052/RTC/LCD DRV 64LQFP |
| NCP699SN28T1G | IC REG LDO 2.8V 240MA 5TSOP |
| RSC50DRYN-S13 | CONN EDGECARD 100POS .100 EXTEND |
| LFEC3E-4QN208I | IC FPGA 3.1KLUTS 208PQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7116ASTZF8-RL | 功能描述:IC ENERGY METER 64-LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
| ADE7156ASTZF16 | 功能描述:IC ENERGY METER 64-LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
| ADE7156ASTZF16-RL | 功能描述:IC ENERGY METER 64-LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
| ADE7156ASTZF8 | 功能描述:IC ENERGY METER 64-LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
| ADE7156ASTZF8-RL | 功能描述:IC ENERGY METER 64-LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:* |
发布紧急采购，3分钟左右您将得到回复。