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Senior Power Electronics Engineer

Senior Power Electronics Engineer

发布于 大约 14 小时前

普通员工/个人贡献者

杭州市
高级经验
全职员工
仅现场办公
本科
硬件工程
Emc
Emi
Gan
Power Electronics
Psim
Sic
Smps
Isolated Dc-Dc Converter

AI 估算 · 25k–45k

资深电源工程师,技能稀缺,杭州半导体行业薪资较高,综合市场水平估算。

职位详情

关于这个职位

作为高级电源电子工程师,您将负责隔离式电源转换产品从概念到量产的全流程设计,包括磁性元件设计、EMC优化和故障分析

该职位要求深厚的开关电源理论知识和动手能力,涉及高电压(200V-10kV)和大功率(100W-10kW)场景,适用于电信、AI、ATE及卫星等严苛领域

最低要求

B.S. (M.S. preferred) in Electrical Engineering or a related field.

+ years of direct experience in the design and development of isolated switch-mode power supplies (SMPS).
Must-Have Technical Skills:
) Proven expertise in transformer design for high-frequency power conversion, including core selection, winding techniques, and isolation barrier design.
) In-depth understanding of galvanic and capacitive isolation standards, design practices, and validation methods.
) Strong knowledge of microprocessor/microcontroller integration for power control, including programming and debugging skills (C/C++ or similar).
) Demonstrable experience designing to meet safety and EMC requirements for Telecom, AI, ATE, and/or Satellite applications.
) Proficiency in simulating, modeling, and mitigating EMI and conducted noise.
) Hands-on experience with power supply prototyping, module and PCB assembly, soldering, and debugging.
) Understand all DC/DC architectures and topologies: ex. Buck-boost, flyback, current mode, COT, etc.
) Familiarity with current sharing techniques and N+1 redundant power architectures.
) Experience with power levels ranging from 100W to 10kW.
Proficiency with schematic capture and PCB layout tools (e.g., Altium Designer, Cadence).
Experience with power electronics simulation tools (e.g., PSIM, Simplis).

工作职责

Architect, design, and develop high-performance, isolated DC-DC power converters (200V-10kV working voltage) and power systems within a power range of 100W to 10kW.

Design and specify custom transformers and inductors, optimizing for performance, cost, and manufacturability, with a focus on both galvanic and capacitive isolation techniques to meet safety and noise requirements.
Ensure all designs comply with stringent international safety requirements for telecom, AI, ATE, and satellite applications (e.g., UL/IEC/EN 60950-1, 62368-1, and specific space-level standards).
Interface with and program onboard microprocessors and system managers for power supply control, monitoring, fault logging, and system communication (e.g., PMBus, I2C).
Design for Electromagnetic Compatibility (EMC), developing strategies to mitigate EMI and conducted noise to meet CISPR/FCC Class A and B standards.
Develop and implement current sharing techniques for multi-phase and parallelable power modules to achieve scalable power solutions.
Lead the technical execution of projects, including schematic capture, PCB layout supervision, prototyping, and validation testing. Hands-on experience with module and PCB assembly, rework, and debugging is essential.
Perform detailed failure analysis, identify common failure modes (e.g., transformer saturation, FET avalanche, gate drive issues, thermal runaway), and implement robust design prevention strategies.
Design and execute validation test plans, including the use of Automated Test Equipment (ATE) for production testing and characterization.
Collaborate cross-functionally with mechanical engineering, firmware, manufacturing and the business management teams to ensure a successful product launch.

优先资格

Experience with wide-bandgap semiconductors (GaN, SiC).

Knowledge of thermal management and mechanical packaging for high-density power supplies.
Experience with high-voltage design (> 1kV).
Familiarity with reliability prediction models (e.g., MIL-HDBK-217, Telcordia).

AI 洞察

优缺点分析

优点

  • MPS为全球领先的电源半导体公司,技术积累深厚,产品应用于AI、卫星等高端领域
  • 杭州工作,半导体产业聚集,薪资待遇有竞争力
  • 对EMC和安全标准要求极为严苛,需要大量仿真和测试迭代
  • 年以上经验要求高,且需掌握从设计到量产的全流程技能
  • 项目周期可能紧张,需频繁与多团队协作
  • 适合有丰富开关电源设计经验、热爱技术钻研、愿意在高端电源领域深耕的资深工程师

缺点 / 挑战

  • 职位涉及高电压大功率设计,技术挑战大,有助于成为行业顶尖专家

角色解读

  • 技术路线:可向系统架构师或技术专家方向发展,深耕高功率密度转换器设计
  • 管理路线:晋升为技术主管或项目经理,协调跨部门团队
  • 跨领域:扩展至宽禁带半导体(GaN/SiC)或航天级电源设计,提升稀缺性
  • 负责隔离式DC-DC电源转换器的架构设计与开发,涵盖200V-10kV电压和100W-10kW功率范围
  • 设计定制变压器和电感,优化性能、成本与可制造性,同时满足安全与EMC要求
  • 进行故障分析与验证测试,确保产品可靠性,并主导从原型到量产的转移
  • 精通开关电源拓扑(Buck-boost、flyback等)和变压器设计,具备深厚的电磁理论
  • 熟练使用Altium Designer、Cadence等EDA工具,以及PSIM、Simplis等仿真软件
  • 掌握C/C++编程,用于微控制器集成与PMBus/I2C通信

申请策略

  • 提前了解MPS的产品线(如隔离电源模块),在面试中展示对其技术路线的理解
  • 准备一个完整的电源设计案例,从需求到测试,突出你的贡献
  • 重点突出隔离式DC-DC转换器的完整项目经验,包括拓扑选择、变压器设计、EMC整改
  • 列出具体功率等级(如1kW、5kW)和电压范围,以及使用的仿真和Layout工具
  • 强调故障分析和量产转移经验,展示解决实际问题的能力
  • 若缺乏宽禁带半导体经验,可补充GaN或SiC的设计知识
  • 学习可靠性预测方法(如MIL-HDBK-217)和热管理技能

面试指南

  • 对于设计问题,先明确输入输出参数,然后选择拓扑(如半桥LLC),解释磁芯材料和匝比计算,再考虑隔离和EMC
  • 对于故障分析,步骤为:现象描述→假设原因→仿真验证→实际测试→根因定位→设计改进
  • 请设计一个隔离式DC-DC转换器,输入200V,输出12V/500W,如何选择拓扑和变压器?
  • 如何抑制反激变换器的共模噪声?请列举具体方法
  • 描述一次你如何解决电源产品的EMI超标问题?
  • 你如何评估变压器的饱和?请解释常用预防措施
  • 复习隔离电源的关键标准(UL60950、IEC62368),准备实际案例
  • 准备一个你主导的电源项目,从架构到测试的完整流程

职位点评

74
综合评分

技术领先的电源工程师岗位,薪资优厚,技术挑战大,但工作强度高。

从薪资福利、成长空间、工作节奏和岗位方向综合评估,方便横向比较。

更适合这类人
最适合追求技术深度和职业成长、对工作强度有心理准备的资深工程师。
表现最好
薪资福利
相对薄弱
工作生活
薪资福利85
成长发展80
工作生活50
使命价值70

薪资福利

85较高

薪资竞争力强,福利完善,但未在JD中明确列出具体福利项。

薪资信号市场水准 (25K-45K/月)

成长发展

80较高

职位涉及前沿技术(宽禁带半导体)和高端应用,但JD未明确提及晋升通道。

技术前沿主流现代技术
技术栈GaN、SiC、LLC、高电压、大功率
业务类型profit_center

工作生活

50较低

仅现场办公,未提及弹性工作或WLB信息,可能压力较大。

工作模式仅现场办公
办公地点未明确
加班情况JD含高强度暗示词

使命价值

70中等

半导体行业增长稳定,产品用于AI、卫星等有社会价值领域,但使命感信号不强烈。

行业发展稳定成熟行业
社会影响中性/一般
创新程度积极采用新技术
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