CQ3203 Sensors, Transducers

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Current transducers are electronic devices used to measure, convert, and monitor electrical currents of any magnitude. The CQ3203 is a three-phase current transducer designed primarily for use in micro-inverter systems. This transducer measures three-phase input current and converts it to an output signal that can be monitored through a micro-inverter system.

The CQ3203 is constructed using a combination of an amorphous core with two 3-phase hyperbolic windings arranged in a linear configuration. This allows the transducer to have low power consumption and high efficiency. In addition, it also features automatic wave detection, which enables it to accurately track and measure the magnitude and phase of the input current even in rapidly varying loads.

The CQ3203 includes several key features that make it highly versatile for micro-inverter applications. It has a high-current input range of up to 1000 A and a direct output signal for an integrated current amplifier. It also includes an integrated voltage sense circuit, which enables the transducer to measure input voltages up to 600 V in a single-phase setup.

The CQ3203 is also equipped with a variety of safety features for added protection. These include overvoltage and overcurrent protection, double insulation, and reverse voltage protection. In addition, the transducer is certified to meet the requirements of IEC 60898-1 and UL 4168.

The working principle of the CQ3203 transducer is based on a magnetic flux conversion of AC current into a proportional DC output voltage. The transducer uses two hyperbolic windings arranged such that the flux from the primary winding is fed into the secondary winding, resulting in a current-to-voltage conversion. The output signal from the transducer is proportional to the current passing through the primary winding. Thus, by measuring the output voltage, the input current can be accurately determined.

The CQ3203 transducer is a highly efficient, cost-effective solution for micro-inverter applications. Its high input range, direct output signal, and safety features make it an ideal choice for measuring and monitoring AC input currents in micro-inverter systems. In addition, its magnetic flux conversion technology and safety certifications make it reliable and safe for use in a variety of industrial, commercial, and residential installations.

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