ADE7758 三项多功能电能计量IC(含各项信息)

ADE77581是一款高准确度的三相电能计量芯片,带有两路脉冲输出功能和一个串行接口。ADE7758 集成了二阶Σ-D模数转换器, 数字积分器,基准电路,温度传感器,以及所有进行有功,无功和视在电能计量以及有效值计量所需的信号处理元件。

ADE7758 适用于计量各种三相配置条件下的有功,无功和视在电能,如WYE和DELTA系统,包括三线和四线制。ADE7758为各相提供系统校准功能,包括有效值偏移校准、相位校准、功率校准。APCF 逻辑输出提供有功功率信息,VARCF逻辑输出提供瞬时无功率或视在功率信息。

ADE7758 中具有波形采样寄存器,它可以对模数转换器的输出进行访问。该器件集成了一个用于短时低电平和高电平变化的检测电路,变化的阈值电压和持续时间(即半周期数)由用户编程决定。三相中的任一相的线电压过零检测与电压过零点是同步的,过零检测的结果可用于测量三个电压输入中任意一个的周期。也可用于内部芯片的线循环(LINE CYCLE)电能累加模式。该模式使电能累加与半周期的整数倍同步,以此实现更快更准确的校准。

数据通过ADE7758 的SPI 串行接口读取。中断请求输出(IRQ)为开漏极,低电平有效。在ADE7758 中出现一个或多个中断事件时,IRQ输出变为低电平。通过状态寄存器显示中断事件的性质。ADE7758采用24引脚小外形封装(SOIC)。

产品特点和性能优势
  • Highly accurate; supports IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23
  • Compatible with 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services
  • Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C
  • Supplies active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data
  • Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency
  • Digital power, phase, and rms offset calibration
  • On-chip, user-programmable thresholds for line voltage SAG and overvoltage detections
  • See Data Sheet for Additional Information
模数转换器 (ADC)
软件代码及系统需求
数据手册
文档备注
ADE7758: Poly Phase Multifunction Energy Metering IC with Per Phase Information Data Sheet (Rev. E)PDF 1105 kB
ADE7758: Poly Phase Multifunction Energy Metering IC with Per Phase Information Data Sheet (Rev. E)PDF 1105 kB
应用笔记
文档备注
AN-1334:在3P4WY形系统中添加中心线线衰减网络的影响 (Rev. 0)PDF 448.82 K
AN-1334: Impact of Adding a Neutral Attenuation Network in a 3P4W Wye System (Rev. 0)PDF 316.46 K
AN-750: ADE7758的相丢失检测与VAR计算 (Rev. 0)PDF 79 kB
AN-750: ADE7758 Phase Dropout Detection for VAR Calculation (Rev. 0)PDF 79 kB
订购信息
产品型号封装包装数量温度范围美金报价 100-499美金报价 1000+RoHS
ADE7758ARWZ 量产24 ld SOIC - WideOTH 31-40 至 85至6.496.49Y
ADE7758ARWZRL 量产24 ld SOIC - WideREEL 1000-40 至 85至06.49Y
参考资料
ADE7758: Poly Phase Multifunction Energy Metering IC with Per Phase Information Data Sheet (Rev. E) ade7758
ADE7758 Evaluation Board Software ade7758
AN-1334:在3P4WY形系统中添加中心线线衰减网络的影响 (Rev. 0) ade7754
AN-1334: Impact of Adding a Neutral Attenuation Network in a 3P4W Wye System (Rev. 0) ade7754
AN-750: ADE7758的相丢失检测与VAR计算 (Rev. 0) ade7758
AN-750: ADE7758 Phase Dropout Detection for VAR Calculation (Rev. 0) ade7758
IC Technology and Failure Mechanisms - Understanding Reliability Standards... ade7755
Reactive Energy Measurement Made Simple ade7753
Measuring Harmonic Energy with a Solid State Energy Meter ade7755