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Deze functie rapporteert aan:

Chapter Lead

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Your role and responsibilities

In this role you will have the opportunity to [insert]. Each day, you will [insert]. You will also showcase your expertise by [insert]


This role is contributing to the EL Smart Power business in Xiamen China.

You will be mainly accountable for:

• Take part in SSCB project evaluations and technical feasibility studies. Propose hardware solutions for sensing and protection.Design current sensing circuits using Rogowski coils and current transformers. Competence of signal conditioning, isolated amplification, anti-aliasing filtering and ADC selection.
• Design voltage sensing circuits, including high-voltage dividers and isolated sensing. Implement over-voltage, under-voltage and phase-loss detection.
• Design fast hardware protection circuits, such as comparator-based microsecond-level short-circuit detection and di/dt detection. These circuits must detect short-circuit faults quickly and trigger trip.
• Define protection logic together with software engineers. This covers trip characteristics such as long-time overload, short-time delay, instantaneous, ground fault and over-temperature protection. Agree how hardware and software protection divide and coordinate their tasks, and contribute to selectivity design.
• Analyze and verify sensing accuracy, including error budget, temperature drift, linearity and calibration methods. Support energy metering and fault recording functions.
• Own EMC and noise-immunity design for the sensing and protection circuits. The circuits must neither trip falsely nor fail to trip under strong electromagnetic interference.
• Lead PCB layout reviews, with a focus on sensing signal integrity, separation of analog and digital ground, and high-voltage isolation distances.
• Create and maintain complete design documentation as required, including schematics, BOM, design calculations, DFMEA and test reports.
• Support type testing and certification to standards such as IEC 60947-2, UL 489 and IEC 61000-4-x, and drive any corrective actions.
• Maintain products in series production, resolve design-related quality issues and support product lifecycle management.
• Support cost and quality optimization, including component selection, validation of alternative components and technical communication with suppliers.
• Interpret customer requirements, translate them into technical specifications and evaluate design concepts.
• Coordinate with cross-functional and global teams to plan and manage R&D projects.Complete other tasks assigned by the company.

Qualifications for the role

• Bachelor's degree or above in Electronics, Electrical Engineering, Automation, Measurement & Control, or a related field.Strong skills in schematic design and PCB layout, with solid circuit calculation ability.
• Proficient with EDA tools (e.g., Altium, Cadence) and circuit simulation tools (e.g., LTspice, PSpice).Expert in analog circuit design.
• Familiar with op-amps, comparators, and able to analyze sensing errors.Familiar with how current and voltage sensors work (Rogowski coil, CT), and with their selection and application.
• Understands circuit breaker protection principles and trip characteristics (overload, short circuit, ground fault, etc.).
• Experience defining or implementing protection logic is a plus.Knowledge of power supplies, magnetic components and embedded systems.
• Able to work effectively with software engineers.Familiar with EMC theory, testing and corrective actions. Knowledge of insulation coordination (IEC 60664).Familiar with industrial communication protocols and IoT applications, such as Modbus and CAN.
• Familiarity with low-voltage product standards (IEC 60947 series, UL 489)
• Development experience with electronic trip units, protection relays, energy metering, solid-state circuit breakers or DC distribution products
• Basic knowledge of power semiconductor driving and protectionKnowledge of DFMEA, reliability design or functional safety
• Good spoken and written English, able to work with global teams.
• Excellent cross-functional communication and coordination skills.Able to work independently and perform well under pressure.
• 5+ years of hardware development experience.

More about us

ABB Smart Power provides energy distribution solutions for data centers, industrial and manufacturing plants, critical infrastructure and commercial buildings. The Division’s technical teams work closely with industry partners, delivering advanced solutions that support rapid growth, energy

transition, and sustainability objectives. The Division’s portfolio includes industrial circuit breakers, low-voltage systems, motor starting applications, and safety devices like switches and relays. Its Power Protection unit supports the world’s largest data center companies with advanced energy-efficient UPS solutions. The Division’s ABB Ability™ Energy Manager provides a scalable, easy-to-use platform that helps organizations save energy and reduce CO2 emissions.

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