For Indian manufacturers of electric vehicle chargers, competitiveness depends on repeatability and safety in design, development, and manufacturing. The HYCA-16-PD leakage current detection device supports AC and DC leakage detection, PCB integration, and functional testing. These features enable manufacturers to develop clear and unambiguous protection interfaces for compatible AC chargers.

1. Why is leak detection important for a shipper’s competitiveness?

Charging stations for private, commercial, and office parking lots must be equipped with effective protective devices against residual currents. Manufacturers must specify how these faults can be detected, the charging process interrupted, and the proper functioning of the detection system verified.

The residual current monitor in the electric vehicle charger generates a detection signal in this protective circuit. A clear user interface and a simple testing procedure enable engineers to easily evaluate the design and explain its safety features to customers.

2. How does the HYCA-16-PD detect AC/DC leakage current?

2.1 Monitoring of different types of fault currents

The HYCA-16-PD AC/DC leakage current detection module has specific response characteristics for AC, pulsed and continuous DC signals.

For engineers evaluating fault current detection at 6 mA DC, the threshold for soft shutdown lies between 3 and 6 mA, with a typical value of 4.5 mA. This data provides a reliable basis for design verification.

2.2 Provision of digital fault signals

If the residual current exceeds a preset threshold, the TRIP output signal switches from low to high. The charger’s control circuitry can then use this signal to initiate the shutdown process.

This module does not automatically disconnect the load circuit. External switching devices and the entire protection logic must be selected and tested simultaneously.

3. How does the integration of printed circuit boards contribute to the development of chargers?

3.1 Connection to the control board

The HYCA-16-PD residual current sensor is designed for PCB mounting and combines PCB mounting functions, a 5V nominal power supply and a digital interface.

This configuration simplifies integration with compatible charging control boards. Engineers should verify the specified supply voltage range of 4.85 to 5.15 V, the ripple limits, and the logic level compatibility.

Charging platform compatible with 3.2V AC.

The technical documentation states that the nominal primary current (RMS value) is 32 A in both single-phase and three-phase versions. This allows manufacturers to verify the module’s compatibility with household, commercial, and office AC chargers.

Conductor cross-section, circuit board design, and protection architecture are also criteria when selecting a charger. An operating temperature range of -40 °C to +85 °C allows for thermal analysis inside the housing.

4. How can functional testing support production?

4.1 Preload test

The TEST input allows for functional simulation of the controller before the charging process. Engineers can integrate this function into the charger’s startup sequence and verify the expected TRIP behavior.

This provides manufacturers with a practical method for testing sensor functionality in assembly systems.

4.2 Develop reproducible calibration procedures

The CAL input supports zero-point calibration. During calibration, the main power circuit must be disconnected to prevent residual currents.

Establishing a clear sequence for power-on, calibration, self-test and final testing helps to ensure consistent testing of residual current circuit breakers throughout the entire manufacturing process.

5. What practical benefits does HYCA-16-PD offer?

The HYCA-16-PD supports Indian wall charger manufacturers with its leakage current detection capabilities, compatible PCB interfaces, and test functions. These features simplify integration and verification; however, system assessments are still required to ensure full compliance.

Please contact Wenzhou Heyi Electric Co., Ltd. and let us know the rated current, phase configuration and control box requirements so that we can discuss the evaluation of the HYCA-16-PD sample.

Compay：HEYI Electrical Co., Ltd.
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com             
Tel: 86-13968747975

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