Power Converter Design Analyzer for EV Systems
Analyze and optimize power converter topologies for EV propulsion and charging systems
What You Can Do
You can rapidly evaluate topology trade-offs (buck, boost, resonant, bidirectional converters) against your power stage requirements, perform steady-state and transient analysis under varied operating conditions, calculate thermal dissipation and design semiconductor cooling strategies, and design PI/PID control loops with compensator tuning. The skill synthesizes circuit analysis, thermal physics, and control theory to produce design recommendations backed by quantitative analysis, helping you identify potential failure modes early and optimize component selection for cost versus performance.
Features
compares buck, boost, buck-boost, resonant, and bidirectional converter architectures against power, efficiency, and cost constraints
calculates semiconductor junction temperatures, dissipation losses, and designs heat sink solutions for high-voltage power stages
develops PI/PID compensators for voltage/current regulation with stability and transient response optimization
quantifies conduction, switching, and driver losses across component operating ranges to predict real-world performance
analyzes conducted and radiated emissions, designs filter networks, and specifies shielding strategies for automotive compliance
identifies high-voltage system risks (>400V), reviews design vulnerabilities, and recommends protective measures
evaluates MOSFET, IGBT, diode, and magnetic component options with performance and thermal trade-offs
produces technical summaries, design calculations, and supplier communication materials for design reviews
Example Output
Example 1: Topology Recommendation for 11 kW On-Board Charger
- Recommended: Interleaved boost PFC + LLC resonant DC-DC
- Efficiency estimate: 94.2% (vs. 91.5% for single-stage boost)
- Thermal burden: 680W dissipation (vs. 950W single-stage)
- Control complexity: Medium (dual feedback loops)
- BOM cost delta: +8% for efficiency gain
Example 2: Thermal Management for 150 kW Motor Controller
- Primary MOSFETs: Tj (junction temp) = 118°C at peak current
- Required heat sink: 0.025 K/W, liquid cooled
- Estimated coolant flow: 3.5 L/min at 5 bar
- Derating margin above 125°C limit: 7°C
- Recommended monitoring: Gate-source voltage (Vgs) telemetry for thermal runaway detection
Example 3: Control Loop Stability Analysis
- Current loop bandwidth: 2.8 kHz (PI gains: Kp=0.45, Ki=820)
- Voltage loop bandwidth: 280 Hz (PI gains: Kp=0.12, Ki=45)
- Phase margin at crossover: 62° (stable)
- Load transient overshoot: 3.2% (acceptable)
What's Included
- SKILL.md: complete instruction file with design analysis procedures
- Topology Comparison Matrix: spreadsheet template for buck/boost/resonant evaluation with loss calculations
- Thermal Calculation Worksheet: step-by-step junction temperature and heat sink sizing framework
- Control Loop Design Checklist: PI/PID tuning methodology with stability margin verification
- EMI Filter Design Guide: common-mode and differential-mode filter sizing with automotive compliance considerations
Who It's For
- EV/electrification engineers designing power electronic systems for propulsion and charging
- Power electronics specialists optimizing converter topologies and thermal management for automotive applications
- Hardware design leads conducting design reviews and trade-off analyses for high-voltage power stages
- Thermal engineers sizing cooling solutions and thermal management strategies for semiconductor-intensive systems
- Reliability and failure analysis engineers assessing risk in high-voltage converter designs
Best For
- Evaluating topology alternatives (buck, boost, resonant, bidirectional) for power stage requirements
- Performing thermal calculations and designing heat sink and cooling strategies for power semiconductors
- Designing and tuning PI/PID control loops for voltage and current regulation in converter applications
- Analyzing efficiency losses and predicting real-world converter performance across operating ranges
- Assessing EMI/RFI concerns and designing filter networks for automotive electromagnetic compatibility
- Identifying failure modes and designing protective measures for high-voltage systems (>400V)
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