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{"title":"High Current Heavy Wire Power Choke Coil For Solar Inverter Energy Storage","imgUrl":"https:\/\/img.chinax.com\/nimg\/d6\/04\/1116169c00e25a00593565282f17-200x200-1\/high_current_heavy_wire_power_choke_coil_for_solar_inverter_energy_storage_system.jpg","attrs":{"Certification":"UL\/CUL\/ISO9001\/ISO14001\/RoHS\/Reach\/IATF16949","Core Type":"Toroidal \/ Ring-type","Model Number":"AS777026 10uH","Rated Current":"80A - 150A (Customizable)"}}
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{"title":"Custom Powder Core PFC Inductor KS301 For Industrial UPS And Inverter","imgUrl":"https:\/\/img.chinax.com\/nimg\/45\/b9\/57cc2375c2035d2bc39fdbe569d8-200x200-1\/custom_powder_core_pfc_inductor_ks301_for_industrial_ups_and_inverter.jpg","attrs":{"Certification":"UL\/ISO9001\/ISO14001\/RoHS\/Reach","Rated current":"Customisable, typical 5 A to 30 A","Model Number":"KS301","Inductance range":"Customisable, typical 100 uH to 1000 uH"}}
{"title":"10uH High Current Toroidal PFC Inductor Choke Coil For High Power Inverter UPS","imgUrl":"https:\/\/img.chinax.com\/nimg\/1f\/4f\/dea6e82e4ea1ddae661c574dc126-200x200-1\/10uh_high_current_toroidal_pfc_inductor_choke_coil_for_high_power_inverter_ups.jpg","attrs":{"Certification":"IATF16949, UL, CE, RoHS","Model Number":"AS777026-10uH","Rated Current":"80A - 150A (Customizable)","Minimum Order Quantity":"1000"}}
{"title":"Custom 50A 100A 150A High Current Inductor For Industrial UPS And Inverter","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/94\/83ff35292c5074bf450cb57253f6-200x200-1\/custom_50a_100a_150a_high_current_inductor_for_industrial_ups_and_inverter.jpg","attrs":{"Model Number":"AS777026","Payment Terms":"T\/T","Operating frequency":"20 kHz to 150 kHz, matched to converter","Price":"$1.08-$10.78"}}
High Current 280A Toroidal Inductor PFC Choke for 30kW 60kW EV Charging Station and Solar Inverter Power Supply
Product Overview
The 280A High-Current PFC Inductor is a heavy-duty magnetic component engineered for high-wattage Power Factor Correction (PFC) stages in the 20kW to 100kW+ power range. Built on a high-capacity toroidal core, this inductor is specifically designed to handle a continuous RMS current of 280 Amperes. By combining advanced Edge-winding (Flat Wire) technology with high-saturation magnetic materials, it provides a stable, low-loss solution for large-scale energy conversion systems, ensuring maximum grid efficiency and minimal harmonic distortion in mission-critical industrial environments.
Technical Specifications
Parameter
Typical Value / Spec
Core Type
High-Saturation Toroidal Powder Core
Winding Method
Edge-wound Flat Copper Wire
Terminal Type
Tinned Copper Busbars (Customizable)
Dimensions
Approx. OD 120-150mm x H 50-80mm (Customizable)
Rated Current (Irms)
280 A
Peak Current (Isat)
350 A - 420 A
Inductance Range
50 uH - 500 uH (Customized for Power Stage)
Inductance Tolerance
+/- 10% or +/- 15%
Max DCR (Resistance)
< 0.5 mOhm - 1.5 mOhm (Ultra-low)
Efficiency
98.5% - 99.4% (Typical)
Hi-Pot (Isolation)
2.5KV - 3.5KV AC / 1min
Core Material
Sendust (Fe-Si-Al) / High Flux / Nanocrystalline
Saturation Flux (Bmax)
1.05 T - 1.5 T
Operating Frequency
10 KHz - 100 KHz
Insulation Class
Class H (180°C) / Class N (200°C)
Operating Temp
-40°C to +125°C (Incl. Temp Rise)
Compliance
RoHS, REACH, IATF16949 (Automotive Ready)
Cooling Requirement
Forced Air / Cold Plate / Liquid Cooling
Key Features
Edge-wound Flat Copper Wire: Utilizes high-purity flat copper wire wound on its edge to maximize conductor cross-section, significantly reducing DC resistance and enhancing current-carrying capacity
High-Saturation Core Materials: Constructed using premium Sendust or High Flux magnetic powder cores with superior flux handling and soft saturation characteristics
Low EMI Toroidal Geometry: Naturally closed magnetic circuit contains magnetic flux effectively, resulting in ultra-low radiated electromagnetic interference
Heavy-Duty Busbar Terminals: Equipped with integrated tinned copper busbars ensuring secure, low-resistance connections for large-gauge industrial cables
High-Temperature Insulation Class: Utilizes Class H (180°C) or Class N (200°C) insulation systems for sustained operation in high-ambient environments
Technical FAQs
Why is "Edge-winding" with flat wire mandatory for a 280A PFC inductor instead of using large-diameter round wire or Litz wire?
For a 280A continuous load, standard round wire would suffer from extreme Skin Effect and Proximity Effect at high switching frequencies (20kHz-100kHz), causing the outer layers to overheat while the core of the wire remains underutilized. Edge-winding allows for a much larger surface area-to-volume ratio, facilitating superior heat dissipation and minimizing the number of winding layers, which drastically reduces AC copper losses caused by proximity effects, resulting in much higher overall efficiency for 30kW-60kW power modules.
How does the "Soft Saturation" characteristic of Sendust/High Flux materials benefit the PFC circuit design at peak 280A currents?
Traditional Ferrite cores exhibit "Hard Saturation," where inductance drops to near-zero instantly once a threshold current is reached, potentially leading to catastrophic MOSFET failure. The Sendust or High Flux cores feature a Distributed Air Gap that allows for Soft Saturation, where inductance decreases gradually as DC bias current increases. This provides a massive safety margin during transient overloads or high-temperature peaks, allowing the PFC controller to maintain control over the current waveform and preventing circuit instability.
Applications
EV Fast-Charging Stations: Primary PFC choke for 30kW, 60kW, and 120kW electric vehicle charging piles and DC fast chargers
Renewable Energy Inverters: Critical for high-power solar (PV) string inverters and bidirectional energy storage systems requiring grid-tie voltage synchronization
Industrial UPS Systems: Provides reliable energy storage and filtering for large-scale data center Uninterruptible Power Supplies
High-Power Industrial PSU: Ideal for heavy-duty inverter welding machines, industrial laser power sources, and plasma cutting equipment
Product Advantages
Unrivaled Power Density: Delivers extreme current-handling capability in a standardized toroidal footprint, allowing for significant space savings in dense power cabinets
Superior Thermal Stability: Combination of large toroidal surface area and flat wire conductors achieves exceptionally low thermal resistance, often eliminating the need for oversized cooling fans
Maximum Conversion Efficiency: Typically achieving 98.5% to 99%+ efficiency, reducing Total Cost of Ownership by minimizing energy waste and heat-related component aging
Automotive-Grade Reliability: Manufactured under strict quality controls, ensuring the inductor can withstand high mechanical vibration and thermal shock over a 15+ year service life
Product Images
Manufacturer Information
Chipsen Electronics Technology Co., Ltd., established in 2000, is a specialized manufacturer of high frequency transformers, low frequency transformers, toroidal inductors, SMD power inductors, super high current inductors, choke coils and switches. Chipsen has earned a strong reputation in domestic and international markets including North & South America, Europe and Southeast Asia.
As an ISO9001, ISO14001 & IATF16949 audited company, Chipsen possesses a professional management team committed to producing environmentally friendly and qualified products. Our products are certified by UL Class B/Class F/Class H, CQC and RoHS, and we hold 21 patents. These achievements stem from our strong R&D team, providing various solutions for temperature reduction, noise cancellation and coupled radiation conductivity.
Vision: To Be Global Transformer Brand Supplier
Mission: Create Values for Customers and Society, Grow with Customers and Staff
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
