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ADE7933 数据表(PDF) 40 Page - Analog Devices |
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ADE7933 数据表(HTML) 40 Page - Analog Devices |
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40 / 125 page  ADE7978/ADE7933/ADE7932/ADE7923 Data Sheet Rev. D | Page 40 of 125 AVGAIN[23:0] HPFEN BIT CONFIG[4] HPF +0.5V ANALOG INPUT RANGE 0V –0.5V 0x512D40 = +5,320,000 VOLTAGE CHANNEL DATA RANGE ADC OUTPUT RANGE 0V 0xFFAED2C0 = –5,320,000 0x512D40 = +5,320,000 ZX SIGNAL DATA RANGE 0V 0xFFAED2C0 = –5,320,000 TOTAL/FUNDAMENTAL ACTIVE AND REACTIVE POWER CALCULATION FUNDAMENTAL VOLTAGE RMS (AFVRMS) CALCULATION VOLTAGE RMS (AVRMS) CALCULATION VAWV WAVEFORM SAMPLE REGISTER VOLTAGE PEAK, OVERVOLTAGE, SAG DETECTION ZX DETECTION LPF1 REFERENCE PHASE A ADE7933 Σ-Δ MODULATOR V1P VIN VM DIGITAL LPF ADE7978 VIN Figure 54. Phase A to Neutral Voltage Channel Datapath NVGAIN[23:0] HPFEN BIT CONFIG[4] HPF +0.5V ANALOG INPUT RANGE 0V –0.5V 0x512D40 = +5,320,000 VOLTAGE CHANNEL DATA RANGE ADC OUTPUT RANGE 0V 0xFFAED2C0 = –5,320,000 VOLTAGE RMS (NVRMS) CALCULATION VNWV WAVEFORM SAMPLE REGISTER REFERENCE NEUTRAL LINE ADE7923 Σ-Δ MODULATOR V1P VIN VM DIGITAL LPF ADE7978 VIN Figure 55. Auxiliary Voltage Channel Datapath |
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