Proper Voltage
Proper Voltage
Proper Voltage — energetika, ishlab chiqarish va dasturiy ta’minot kesishmasida faoliyat yurituvchi B2B texnologiya kompaniyasi. Uning Battery Operating System (bOS) platformasi ilg‘or akkumulyator kimyolarini tijoriy va sanoat mahsulotlarida qo‘llanadigan quvvat tizimlari bilan bog‘lab, ishlab chiqaruvchilar va akkumulyator yaratuvchilariga unumdorlik, xavfsizlik va joriy etishni boshqarish uchun dasturiy qatlamni taqdim etadi. Proper Voltage jamoalarga qurilmalarni qayta loyihalashtirmasdan yoki sertifikatlash ishlarini takrorlamasdan turli akkumulyator texnologiyalarini integratsiya qilishda yordam berib, akkumulyator innovatsiyasidan amaliy mahsulotdan foydalanishgacha bo‘lgan yo‘lni soddalashtirishni maqsad qiladi. Platforma, shuningdek, mahsulotning butun hayotiy sikli davomida dasturiy ta’minot asosidagi quvvat boshqaruvi va monitoringini qo‘llab-quvvatlaydi.

Lead Firmware Engineer, Power Conversion Control (California Remote)

Lead real-time firmware development for bidirectional DC/DC converter controls in Proper Voltage’s intelligent battery systems. Advance safety-critical power hardware from simulation through certified laboratory validation.

Tavsif

  • Lead real-time firmware for bidirectional DC/DC power-conversion stages
  • Develop control loops for four-switch buck-boost converters, multiphase interleaving, and phase-current balancing
  • Build compensators, mode arbitration, scheduler and ISR architecture, and platform abstractions for a portable DC/DC control library
  • Implement converter protections for cycle-by-cycle current limiting, overvoltage, undervoltage, thermal derating, gate-drive faults, and safe-state transitions
  • Validate firmware against control models through closed-loop simulation and tolerance-based response comparisons
  • Design and maintain deterministic fast-control and supervisory tasks, including jitter measurement and worst-case execution-time documentation
  • Configure and validate PWM, ADC, comparator, DAC, triggering, sampling, dead-time, and protection systems
  • Measure sampling, computation, and PWM-update latency on target hardware and report results to the controls engineer
  • Implement constant-current, constant-voltage, constant-power, current-limit, soft-start, buck-to-boost, phase-shedding, and charge-discharge reversal modes
  • Bring up converter hardware in the laboratory through full-envelope characterization, including gate-drive debugging, dead-time tuning, and shoot-through prevention
  • Support loop-gain, transient-response, and efficiency testing while resolving model-to-hardware discrepancies
  • Create on-target unit tests and hardware-in-the-loop regression systems
  • Write firmware specifications and certification verification evidence for UL 1973, UL 1998, and UL 9540
  • Act as technical lead, review controls and embedded code, and participate in hardware design reviews

Talablar

  • Bachelor’s degree in Electrical Engineering, Computer Engineering, or equivalent demonstrated expertise
  • At least six years of experience developing production embedded C firmware for resource-constrained real-time systems
  • Professional experience developing control firmware for switched-mode power converters, inverters, or motor drives
  • Working knowledge of PID and 2p2z/3p3z difference equations, discretization, sampling and computational delay, saturation, and anti-windup
  • Proficiency with high-resolution PWM, PWM-triggered ADCs, analog comparators, DACs, and DMA
  • Competence with fixed-point arithmetic, including Q-format scaling, range and overflow analysis, and saturation behavior
  • Experience designing deterministic ISRs under hard timing constraints and measuring and defending worst-case execution time
  • Ability to independently conduct laboratory work with oscilloscopes, isolated and differential probes, current probes, electronic loads, and bidirectional power supplies
  • Experience with version control, code reviews, specifications, and test evidence
  • Must be authorized to work in the United States; visa sponsorship is unavailable
  • Preferred experience with dsPIC, dsPIC33C/33CK/33CH, MPLAB X, XC16, and the Microchip digital power ecosystem
  • Preferred experience with bidirectional and multiphase interleaved converter control, average current-mode control, GaN/SiC, ARM Cortex-M, PLECS, MATLAB/Simulink, network-analyzer measurements, battery energy storage, EV charging, PV and grid-interactive converters, functional safety and certification, MISRA C, static analysis, CAN/CANopen, and portable control libraries

Imtiyozlar

  • Equity options are included in the compensation package
  • Comprehensive medical, dental, and vision coverage
  • Generous paid time off
  • Paid holidays under the PTO policy

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