ADI ADE9430高性能多相S类电源质量监视方案

ADI公司的 ADE9430高性能全集成多相S类电源质量监视器件,其优异的模拟性能和数字信号处理(DSP)核能对大动态范围的能量进行精确的监视.集成的高端基准保证了低温度飘移,整个通路组合包括可编程增益放大器(PGA)和模数转换器(ADC)的飘移小于±25 ppm/°C. ADE9430通过瞬时总计以及对rms,频率,相位角,功率因素有用,无用和表象功率和能量的基本测量来提供完整的电源质量监测功能.采用选择的ADSWPQ-CLS电源质量库,其先进的电源质量特性如幅值凹陷和凸升监视,电源频率,电压总谐波失真(VTHD)和电流总谐波失真(ITHD)可以启用.一周期rms,10周期rms/12周期rms,可选择ADSWPQ-CLS电源质量库特性是根据IEC 61000-4-30 Class S进行计算. ADE9430提供再取样波形1024点/10周期或12周期.再取样简化了外接处理器快速傅里叶变换(FFT) 计算至少40个谐波.器件具有7个高性能24位Σ-Δ ADC,在8kSPS和PGA=1时SNR为101dB,输入电压范围±1 V,增益=1时满刻度为707 mV rms.主要用在能量和电源监视,标准兼容电源质量监视,保护的设备,机器保健,智能电源分布单元以及多相能源表.本文介绍了ADE9430主要特性,典型应用电路和测试电路,以及评估板EVAL-ADE9430ARDZ 主要特性,电路图,材料清单和PCB设计图.

High Performance, Polyphase Energy, and Class S Power Quality Monitoring IC

The ADE9430 is a highly accurate, fully integrated, polyphase energy and power quality monitoring device. Superior analog performance and a digital signal processing (DSP) core enable accurate energy monitoring over a wide dynamic range. An integrated high

end reference ensures low drift over temperature with a combined drift of less than ±25 ppm/°C maximum for the entire channel including a programmable gain amplifier (PGA) and an analog-to-digital converter (ADC).

The ADE9430 offers a complete power quality monitoring capability by providing instantaneous total as well as fundamental measurements on rms, frequency, phase angle, power factor active, reactive, and apparent powers and energies. Using the optional ADSWPQ-CLS Power Quality Library, advanced power quality features, such as dip and swell monitoring, power frequency, voltage total harmonic distortion (VTHD), and cur...