ADE7903ARWZ-RL

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The ADE7903ARWZ-RL is a one-phase energy and power meter controller, with integrated voltage and current measurement input pins, from Analog Devices. The device provides basic electrical energy measurements, including the power factor. Apart from having the ability to measure electrical energy and power, the ADE7903ARWZ-RL also provides other features, including an adjustable current input threshold, an adjustable power factor threshold, pulse counting, and time-of-use metering.

The ADE7903ARWZ-RL employs a dual-submacro architecture to provide improved energy and power measurements compared to other solution. It has an input range of 4V - 10V, with a maximum supply voltage of 5V. The device can measure effective energy and power up to 20MHz and can perform active and reactive energy measurement up to 4MHz. It also offers enough accuracy to be used in communication systems.

The ADE7903ARWZ-RL is widely used in power and energy measurement applications. It is particularly useful for AC measurement in systems where the current is not known, such as high-power lighting or HVAC systems. It is also well-suited for other applications, such as smart home, industrial and commercial systems.

The working principle of the ADE7903ARWZ-RL is relatively simple. It measures the line-to-line RMS voltage and current, then performs quadrature processing on the line-to-line measurements. The calculation of the power is based on the product of the RMS voltage and current readings and the measurement of the total energy is obtained by integrating the active power over time. The device can also measure the phase relation between the voltage and current and calculates power factor. The power calculations can also be used to perform phase and phase delay measurements.

The ADE7903ARWZ-RL also offers an adjustable current input threshold, which can be used to measure current in both AC and DC systems. The power factor and pulse counting features are also useful for applications such as time-of-use metering and energy management systems. The device offers a flexible digital interface with I2C or UART communication, allowing for easy connection to a microcontroller or other digital hosts.

The ADE7903ARWZ-RL is a versatile device for applications that require accurate measurements for power and energy, such as lighting and HVAC systems. Its adjustable current input threshold and power factor features offer good flexibility for various applications, while its quadrature processing and pulse counting features make it suitable for precise energy and power measurements in a wide range of applications.

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