HT7038 系列多功能高精度三相电能专用计量芯片，适用于三相三线和三相四线应用。 HT7038 集成了 6路二阶sigma-delta ADC 、参考电压电路以及所有功率、能量、有效值、功率因数及频率测量的数字信号处理等电路，能够测量各相以及合相的有功功率、无功功率、有功能量及无功能量，同时还能测量各相电流、电压有效值、功率因数、相角、频率等参数，充分满足三相复费率多功能电能表的需求。(HT7038 series of multi-functional and high-precision three-phase power metering chips are suitable for three-phase three-wire and three-phase four-wire applications. HT7038 integrates six second-order sigma-delta ADC, reference voltage circuit and digital signal processing circuits for all power, energy, RMS, power factor and frequency measurements. It can measure active power, reactive power, active and non-functional quantities of phases and phases, and also can measure parameters such as current, voltage RMS, power factor, phase angle and frequency of phases. It can fully meet the needs of three-phase multi-rate multi-functional watt-hour meter.)