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MAX71020
Single-Chip Electricity Meter AFE
Table 17. CE Parameters for Noise Suppression and Code Version
CE
ADDRESS
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
NAME
QUANT_VA
QUANT_IA
QUANT_A
QUANT_VARA
QUANT_VB
QUANT_IB
QUANT_B
QUANT_VARB
DEFAULT
0
0
0
0
0
0
0
0
DESCRIPTION
Compensation factors for truncation and noise in voltage, current, real energy, and
reactive energy for phase A.
Compensation factors for truncation and noise in voltage, current, real energy, and
reactive energy for phase B.
QUANT_Ix_LSB = 3.28866 × 10 -13 × I MAX 2 (Amps )
2
QUANT_Wx_LSB = 6.73518 × 10 -10 × V MAX × I MAX (Watts)
QUANT_VARx_LSB = 6.73518 × 10 -10 × V MAX × I MAX (Vars)
Table 18. CE Calibration Parameters
CE
ADDRESS
0x10
0x11
0x13
0x14
NAME
CAL_IA
CAL_VA
CAL_IB
CAL_VB
DEFAULT
16384
16384
16384
16384
DESCRIPTION
These constants control the gain of their respective channels. The nominal
value for each parameter is 2 14 = 16384. The gain of each channel is directly
proportional to its CAL parameter. Thus, if the gain of a channel is 1% slow, CAL
should be increased by 1%.
These constants control the CT phase compensation. Compensation does not
0x12
PHADJ_A
0
occur when PHADJ_X = 0. As PHADJ_X is increased, more compensation (lag)
is introduced. The range is ± 215 – 1. If it is desired to delay the current by the
angle F , the equations are:
0.02229 × TAN F
at 60Hz
PHADJ_X = 2 20
0.1487 - 0.0131 × TAN F
0x15
PHADJ_B
0
PHADJ_X = 2 20
0.0155 × TAN F
0.1241- 0.009695 × TAN F
at 50Hz
Maxim Integrated
32
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相关代理商/技术参数
MAX71020AEUI+R 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Chip Electricity Meter AFE
MAX710C/D 功能描述:直流/直流开关转换器 3.3V/5V or Adjustable Step-Up Step-Down DC-DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710C/D DIE 制造商:Maxim Integrated Products 功能描述:
MAX710ESE 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE+ 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE+ 制造商:Maxim Integrated Products 功能描述:CONVERTOR DC/DC ((NW))
MAX710ESE+T 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE-T 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT