[原创] TI AMC1304多相电能测量系统参考设计TIDA－01088

TI公司的AMC1304是集成了LDO的高精度输入输出隔离的ΔΣ调制器,隔离层高达7000VPEAK,符合DIN V VDE V 0884-10,UL1577和CSA标准,具有极好的DC性能,支持高精度系统检测:失调误差±50 μV或±100 μV,失调漂移小于1.3 μV/¡ãC,增益误差±0.2%或 ±0.3%,增益漂移小于±40 ppm/°C,主要用于基于并联电阻的电流检测如工业马达驱动器,光伏逆变器和UPS以及隔离电压测量.本文介绍了AMC1304主要特性,功能框图,频率逆变器应用电路图,以及多相电能测量系统参考设计TIDA-01088主要特性和系统指标,框图,电路图,主要元件分布图和PCB设计图.

The AMC1304 is a precision, delta-sigma (ΔΣ)modulator with the output separated from the inputcircuitry by a capacitive double isolation barrier that ishighly resistant to magnetic interference. This barrieris certified to provide reinforced isolation of up to7000 VPEAK according to the DIN V VDE V 0884-10,UL1577 and CSA standards. Used in conjunction withisolated power supplies, the device prevents noisecurrents on a high common-mode voltage line fromentering the local system ground and interfering withor damaging low voltage circuitry.
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