MAXQ314 单相交流电源测量IC，带有I²C接口
The MAXQ314 performs voltage and current measurements using an integrated ADC that can measure voltage and current. Other values such as power are calculated from that data. The MAXQ314 also has an integrated temperature sensor that provides the die temperature on demand. The internal current amplifier produces up to 32x gain and the voltage amplifier gain is 1x. 关键特性

High-Performance, Low-Power DSP Core

On-Chip Digital Temperature Sensor

Precision Internal Voltage Reference

Active Power (W), < ±0.5% Error

Reactive Power (VAR), < ±0.7% Error

Apparent Power (VA), < ±0.7% Error

Power Factor, < ±1% Error

Voltage RMS, < ±0.2% Error

Current RMS, < ±0.5% Error

I²C-Compatible Serial Interface

Continuous Output of I_RMS in Serial or PWM

应用/使用

单相交流电源监测

原理框图