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PHIHONG USA

Designs power supplies for equipment makers

Power Electronics Application Engineer

Power Systems EngineeringConfirmed live in the last 24 hours
Full-timeFremont, CA, USANo salary listedIn-person

About the Job

Requirements

  • A Bachelor's degree in Electrical Engineering.
  • At least 5 years of experience in power electronics, power supply design, applications engineering, or a related field.
  • Strong understanding of AC-DC power supplies, DC-DC converters, Flyback, Forward, LLC, Half-Bridge, and Full-Bridge topologies; Power Factor Correction; PoE (IEEE 802.3af/at/bt); battery charging systems; Si, SiC, and GaN power devices; thermal design and management; and EMC/EMI compliance.
  • Proficiency with oscilloscopes, power analyzers, electronic loads, network analyzers, spectrum analyzers, and thermal test equipment.
  • Experience using LTspice, PSpice, MATLAB/Simulink, and power electronics simulation tools.
  • Strong analytical and troubleshooting skills.
  • Customer communication skills and technical presentation capability.
  • Project management and organizational skills.
  • Ability to work independently and collaboratively.
  • Willingness to travel as required.

Responsibilities

  • Provide pre-sales and post-sales technical support for power supply and power conversion products.
  • Analyze customer requirements and recommend appropriate power solutions.
  • Assist customers with product selection, system integration, and design optimization.
  • Support customer qualification testing and resolve field application issues.
  • Develop reference designs, evaluation platforms, and application notes.
  • Create and validate customer-specific solutions using AC-DC, DC-DC, PoE, battery charging, and power management technologies.
  • Perform circuit simulation, characterization, and performance verification.
  • Generate test reports and technical documentation.
  • Conduct electrical, thermal, EMC/EMI, reliability, and performance testing.
  • Debug hardware and system-level issues.
  • Support root-cause analysis of customer returns and field failures.
  • Work with design engineering teams to implement corrective actions.
  • Deliver customer presentations, product demonstrations, and technical training.
  • Participate in customer design reviews and engineering discussions.
  • Support RFI, RFQ, and technical compliance activities.
  • Assist in developing competitive product comparisons and positioning.
  • Work with design, quality, manufacturing, and product management teams.
  • Provide feedback on customer requirements for future product development.
  • Support new product introduction activities.
  • Help define specifications for next-generation power products.

Desired Qualifications

  • A Master's degree in Power Electronics.
  • Experience supporting customers in a technical role.
  • Experience with PoE systems and Ethernet power delivery.
  • Familiarity with UL, IEC, FCC, CE, and Energy Efficiency standards.
  • Knowledge of digital power control techniques.
  • Experience supporting global customers and manufacturing teams.
  • Understanding of reliability analysis, MTBF calculations, and design verification methods.

About the Company

PHIHONG USA

Designs power supplies for equipment makers

PHIHONG USA designs and sells power supplies for equipment makers, tailoring its products to the electrical needs and space limits of each device. Its range spans external adapters, battery chargers, medical power supplies, and modules built into industrial and networking equipment. Adapters convert wall power into a device's required voltage, while Power over Ethernet products send electricity and data through one cable. Customers buy standard products through distributors or commission custom designs, with the US team supporting development, testing, certification, and production. The US subsidiary was established in 1991 and is headquartered in Fremont, California.

Company size
51-200
Company stage
Not listed
Total funding
Not listed
Headquarters
Fremont, CA
Founded
1991

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