Powder Core Inductor Design
Budget: $30 – $250 USD
Hello,
We are looking for a freelancer to design a stacked (2-core) toroidal inductor for use in a 35 kVA inverter operating at 50 kHz.
Key Specifications:
• Target inductance: 120 µH
• Peak current: 85 A
• RMS current: 50 A
• Topology: Stacked toroid (2 identical cores)
• Core type: Powdered iron (Magnetics or Micrometals preferred)
• Suggested starting point for core: Magnetics part 0077735A7
• Cores must be available to buy on Mouser or Digi-Key
• Temperature rise should be less than 40 deg C
Deliverables required:
• Final core selection (with part number and supplier availability)
• Validated DC bias check (with AL drop curve or modeling)
• Number of turns required
• Recommended wire type (Litz or solid) and copper wire diameter
• Fill factor and space utilization analysis
• Copper loss and core loss estimates
• Thermal modeling or estimated temperature rise
The design should balance manufacturability, thermal safety, and magnetic performance. Let me know if you can assist or if you need additional information.
We are looking for a freelancer to design a stacked (2-core) toroidal inductor for use in a 35 kVA inverter operating at 50 kHz.
Key Specifications:
• Target inductance: 120 µH
• Peak current: 85 A
• RMS current: 50 A
• Topology: Stacked toroid (2 identical cores)
• Core type: Powdered iron (Magnetics or Micrometals preferred)
• Suggested starting point for core: Magnetics part 0077735A7
• Cores must be available to buy on Mouser or Digi-Key
• Temperature rise should be less than 40 deg C
Deliverables required:
• Final core selection (with part number and supplier availability)
• Validated DC bias check (with AL drop curve or modeling)
• Number of turns required
• Recommended wire type (Litz or solid) and copper wire diameter
• Fill factor and space utilization analysis
• Copper loss and core loss estimates
• Thermal modeling or estimated temperature rise
The design should balance manufacturability, thermal safety, and magnetic performance. Let me know if you can assist or if you need additional information.