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ADE75 数据表(PDF) 38 Page - Analog Devices |
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ADE75 数据表(HTML) 38 Page - Analog Devices |
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38 / 148 page  ADE75xx/ADE71xx Preliminary Technical Data Rev. PrE | Page 38 of 148 Address MADDPT[6:0] Name R/W Length Signed /Unsigned Default Value Description 0x25 VARDIV R/W 8 U 0 Set VAR energy scaling register 0x26 VADIV R/W 8 U 0 Set VA energy scaling register 0x27 CF1NUM R/W 16 U 0 Set CF1 numerator register 0x28 CF1DEN R/W 16 U 0x003F Set CF1 denominator register 0x29 CF2NUM R/W 16 U 0 Set CF2 numerator register 0x2A CF2DEN R/W 16 U 0x003F Set CF2 denominator register 0x3D CALMODE R/W 8 U 0 Set Calibration Mode ENERGY MEASUREMENT INTERNAL REGISTERS DETAILS Table 29. MODE1 register (0x0B) Bit Location Bit Mnemonic Default Value Description 7 SWRST 0 Setting this bit will reset all of the energy measurement registers to their default values 6 DISZXLPF 0 Setting this bit disables the zero-crossing lowpass filter 5 INTE1 0 Setting this bit enables the digital integrator for use with a di/dt sensor 4 SWAPBITS 0 Setting this bit swaps CH1 & CH2 ADCs 3 PWRDN 0 Setting this bit powers down voltage and current ADC’s 2 DISCF2 1 Setting this bit disables Frequency output CF2 1 DISCF1 1 Setting this bit disables Frequency output CF1 0 DISHPF 0 Setting this bit disables the HPFs in voltage and current channels Table 30. MODE2 register (0x0C) Bit Location Bit Mnemonic Default Value Description 7-6 CF2SEL[1:0] 01 Configuration bits for CF2 output CF2SEL[1:0] Source 00 CF2 frequency is proportional to active power 01 CF2 frequency is proportional to reactive power5 1x CF2 frequency is proportional to apparent power or IRMS 5-4 CF1SEL[1:0] 00 Configuration bits for CF1 output CF1SEL[1:0] Source 00 CF1 frequency is proportional to active power 01 CF1 frequency is proportional to reactive power1 1x CF1 frequency is proportional to apparent power or IRMS 3 VARMSCFCON 0 Configuration bits for apparent power or IRMS for CF1 and CF2 outputs 0 If CF1SEL[1:0]=1x, CF1 is proportional to VA If CF2SEL[1:0]=1x, CF2 is proportional to VA 1 If CF1SEL[1:0]=1x, CF1 is proportional to IRMS If CF2SEL[1:0]=1x, CF2 is proportional to IRMS Note that CF1 cannot be proportional to VA if CF2 is proportional to IRMS and vice versa 2 ZXRMS 0 Logic one enables update of RMS values synchronously to voltage ZX 1 FREQSEL 0 Configuration bits to select PERIOD or FREQUENCY measurement for PER_FREQ register (0Ah) 0 PER_FREQ register holds a period measurement 5 This function is not available in ADE7566 and ADE7166 products. |
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