Engine mounts, chassis parts, and machined components for assembly lines.
High-strength fasteners, landing gear parts, and structural assemblies.
Forged housings, armor brackets, and mission-critical structural parts.
Precision housings, actuator frames, and armature linkages for automation systems.
Metal frames, brackets, and assemblies for appliances and home equipment.
Busbar holders, battery pack parts, and lightweight structural enclosures.
Solar mounting parts, wind turbine brackets, and battery enclosures.
Valve bodies, flange blocks, and downhole drilling components.
Large welded frames, PEB structures, and assemblies for industrial equipment.
Designed to protect internal components from dust, moisture, and impact in demanding environments.
Engineered to create strong, leak-proof connections between pipes, valves, and equipment.
Built to move liquids or gases with consistent flow and pressure control.
Developed to precisely manage the flow, direction, or pressure of fluids.
Produced by forcing material through a die to achieve exact shapes and dimensions.
Converts alternating current voltage levels through electromagnetic induction for efficient power distribution.
Provides a flexible, insulated pathway for safe transfer of electrical current to devices.
Uses coiled conductors to store energy and control current in electrical circuits.
Transmits electrical power or signals with optimized conductivity and insulation integrity.
Delivers high-current flow through rigid, low-resistance conductive metal strips in power systems.
CNC machining delivers micron precision and tight tolerances for complex geometry.
Frigate CNC Machining offers high-precision, custom solutions for complex casting geometries. Multi-axis capabilities ensure tight tolerances and optimal surface finishes.
Sheet metal fabrication uses laser cutting, punching, and bending for precision.
Frigate Sheet Metal Fabrication utilizes advanced laser cutting and press brake technology for custom casting applications. Tight tolerances, superior welds, and high-strength materials ensure structural integrity.
Injection molding produces high-precision parts with consistent quality.
Frigate Injection Molding delivers custom-engineered parts with micron-level precision and structural integrity. Specialized molds maintain tight tolerances for complex geometries and high-stress applications.
Precision casting ensures accurate, high-quality parts.
Forging services improve material strength with precise tolerances.
Frigate Casting Services provides custom casting with tight tolerances and complex geometries. We enhance material properties using advanced metallurgy, ensuring strength and wear resistance. Our precision methods support high-performance aerospace, automotive, and industrial applications.
End-to-end part production from samples to bulk supply.
Ready-to-use assemblies built to exact fit and function.
Heavy-duty fabrication with high-strength materials for demanding applications. Robust welding for maximum structural durability.
Voltage slopes at the motor terminals frequently exceed 5000 V/µs in modern high-speed switching drives. Such steep transitions accelerate partial discharge phenomena, particularly in motors with standard insulation not designed for inverter duty. An output choke imposes a finite inductive impedance, which moderates the voltage rise time without altering the inverter’s fundamental frequency output. This ensures compatibility with legacy motors or installations with insufficient insulation margins.
Cable lengths exceeding 15 meters often result in voltage reflection and constructive interference, leading to terminal overvoltages that surpass rated winding limits. This effect is especially pronounced when motor impedance differs significantly from the cable characteristic impedance. Output chokes reduce the rate of current change (di/dt) and shift the resonance point of the cable-load system, thereby attenuating the amplitude of reflected wave voltages. The result is a controlled voltage profile that complies with IEC insulation coordination levels.
Conducted emissions from inverter outputs can couple into control systems or communication lines, especially in installations with inadequate shielding or bonding. Output chokes provide distributed reactance that diminishes common-mode and differential-mode EMI without reliance on ferrite-based suppression. The construction of the choke, including winding technique and magnetic core design, directly influences its effectiveness in mitigating emissions within CISPR-11 Class A and B limits.
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Dampens reflected wave voltages in long cable runs, preventing overshoot conditions and shaft bearing damage.
Provides stable inductive filtering to manage rapid switching transients and mitigate torque pulsation effects on delicate equipment.
Controls transient voltages and reduces harmonic content to maintain power quality at fan or compressor motor inputs.
Attenuates PWM noise and limits common-mode currents to protect encoder systems and spindle motor windings.
Ensures controlled motor startup and sustained harmonic suppression under continuous and cyclic loading conditions.
Handles frequent torque reversals and regenerative braking energy without saturation or thermal imbalance across windings.
Drives feeding variable-torque or cyclic-load motors introduce irregular current waveforms, causing localized heating in conventional inductors. 3-phase output chokes built with low-loss, high-saturation flux density magnetic materials maintain thermal uniformity even under conditions of unbalanced loading or intermittent overload. Advanced thermal modeling and forced cooling designs ensure that hotspot formation is minimized, allowing operation within Class H temperature rise limits without thermal derating.
Switching frequencies above 10 kHz significantly increase switching losses and electromagnetic noise when using standard chokes with insufficient frequency response. 3-phase output chokes designed with reduced core losses at higher frequencies and precision-wound interleaved coils maintain effective inductance across a wide spectrum. This ensures that inverter performance, including modulation index and voltage control, remains stable while preserving output signal fidelity.
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Frigate uses high-grade magnetic cores with low hysteresis and minimal temperature drift. The chokes maintain consistent inductive impedance under both linear and non-linear loads. Advanced coil geometry prevents saturation even during high peak current events. This ensures waveform integrity and reduced harmonic distortion across all load conditions.
Frigate selects low-loss silicon steel or nanocrystalline materials based on application voltage and switching frequency. These materials exhibit low eddy current loss and excellent thermal conductivity. Core saturation and localized heating are minimized even above 10 kHz switching rates. This enables reliable choke performance in modern IGBT-based drives.
Frigate designs chokes with tuned inductance values that reduce reflected wave overshoots at the motor terminals. This minimizes voltage doubling caused by impedance mismatches in long cable runs. Chokes are tested using time-domain reflectometry (TDR) to verify waveform behavior. The result is enhanced motor insulation life and safer terminal voltage levels.
High-frequency harmonic content excites mechanical vibrations in motor windings. Frigate’s output chokes filter these harmonics before they reach the motor. This reduces magnetostriction-related hum and vibration. Lower noise levels also indicate reduced core and copper losses.
Frigate uses Class H insulation (180°C) for all winding materials. This allows safe operation under high ambient temperatures and intermittent overloading. Thermal modeling ensures winding temperature stays within design limits during steady-state and transient conditions. This extends choke life without requiring external cooling.
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10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.
9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ
FRIGATE is a B2B manufacturing company that facilitates New Product Development, contract manufacturing, parallel manufacturing, and more, leveraging its extensive partner networks.
Need reliable wires and cables for your next project? Get in touch with us today, and we’ll help you find exactly what you need!
Need reliable Machining for your next project? Get in touch with us today, and we’ll help you find exactly what you need!