ADE7923ARWZ

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The ADE7923ARWZ is a high performance, low cost Mixed Signal Front End (MFE) device designed to measure and process power line signals in the single-phase, two-wire and three-wire systems. It combines an analog front end (AFE) with a 12-bit analog-to-digital converter (ADC) and digital signal processing (DSP) components to measure and process power line signals with very high accuracy and resolution. The ADE7923ARWZ also integrates additional features such as DSP-based active line cycle synchronization, external synchronization signals input, low power standby operation mode, communication interfaces and multiple embedded protection features.

The ADE7923ARWZ is most suitable for in-home energy and power management applications, electric vehicle charging stations and other industrial applications requiring reliable and accurate power monitoring and control. The device has a wide operating voltage range (between 10 and 265VAC) and can be used with single-phase, two-wire and three-wire systems.

Working Principle

The ADE7923ARWZ uses a principle of Digital-to-Analog Conversion (DAC) to measure and process power line signals. The device contains a 12-bit ADC, which measures the voltage and current of the power line signals and converts them into digital values. These digital values are further processed by a high-speed DSP processor, which calculates instantaneous power and energy measurements. Additionally, the ADE7923ARWZ uses low-pass and high-pass filters to block the noise in the power line signals. The device can be synchronized to the power line frequency through an on-chip oscillator or through an external signal.

Once the power line signal is digitized, the processor measures the real power and reactive power components, as well as calculating the active line cycles. It can also estimate the power factor of the power line signal. Additionally, the ADE7923ARWZ measures the RMS voltage, RMS current, and line frequency values. It can also be used for harmonic analysis, by measuring the voltage and current harmonics, inter-harmonic signals, and the total harmonic distortion (THD).

Features and Benefits

The ADE7923ARWZ offers an extensive list of features and benefits, which are useful for power line monitoring and control applications. The device is capable of measuring total energy, power and energy consumption, active line cycles, and power factor using its 12-bit ADC and advanced digital signal processing. Additionally, the device provides field programmable, over-current and over-voltage protection to protect the connected components from any over-current or over-voltage situations. It also provides a low-power standby operation mode, which consumes almost no power when the line is inactive.

The ADE7923ARWZ also provides multiple communication interfaces, including a high-speed SPI interface, as well as a UART interface for remote monitoring and configuration. Additionally, the device supports a wide range of input voltages, from 10 to 265VAC. The device can also be synchronized to the power line frequency, either through an on-chip oscillator or through an external input.

Applications

Due to its advanced features and wide range of supported applications, the ADE7923ARWZ is suitable for a variety of energy and power management applications. It is most suitable for in-home energy and power management applications, as well as electric vehicle charging stations. Additionally, the device is suitable for industrial applications requiring reliable and accurate power monitoring and control. The device can also be used in communication systems, fire alarms, medical devices, and various automation applications.

With its low cost, high performance and wide range of features, the ADE7923ARWZ is a perfect solution for demanding energy and power management applications. It provides an accurate, reliable and cost-effective solution for power line monitoring and control.

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