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Added value distributor and development
ROTIMA AG - Magnetic Components

Storage Inductances

Rotima storage inductors store magnetic energy, smooth out currents, and support filtering in power electronic circuits. We supply proven standard designs and develop custom variants tailored to specific requirements for inductance, current, frequency, losses, temperature, and installation space.
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Energy Storage and Power Smoothing
PQ and toroidal designs
For AC and DC applications
Standard and Custom
Product Selection
All Products
Custom Engineering

Designed to match actual current waveforms

A production-ready storage inductor is derived from the schematic diagram, operating data, and mechanical constraints. Rotima takes into account not only the nominal value but also the complete current waveform, frequency components, losses, saturation margin, and thermal installation conditions.
Request a Custom Solution
Clarify topology, currents, frequencies, and temperature range
Design the core, air gap, winding, and conductor cross-sectional area
Manufacture prototypes and verify inductance and losses
Implement the release into a reproducible manufacturing process
Applications

Magnetic Energy Storage in Power Electronics

Storage inductors are used wherever energy needs to be transferred cyclically, current needs to be smoothed, or interference needs to be filtered out.

DC/DC Converter

Energy Storage and Power Smoothing in Buck, Boost, and Other Converter Topologies.

AC/DC Power Supplies

Filter and storage chokes for power supplies, rectifier stages, and industrial power supplies.

Power Factor Correction

Magnetic components for passive and active PFC stages with a defined current profile.

Intermediate-Circuit Filtering

Reduction of power ripple and noise components in DC intermediate circuits and power distribution systems.

Motor Drives and Inverters

Current smoothing and filtering in drive controllers, frequency converters, and power electronic actuators.

Charging and Energy Systems

Storage inductors for chargers, energy storage systems, renewable energy, and other high-current applications.
Reliable Specifications

Quality and Technical Verification

The electrical and magnetic design is verified under defined test conditions. Depending on the model, the inductance, saturation behavior, DC resistance, and dielectric strength of the core are tested. Refer to the respective data sheet for product-specific limits and operating conditions.
Send Specifications
Inductance Measurement at a Defined Frequency and Measurement Voltage
Verification of Current Behavior and Saturation Margin
Measurement of DC Resistance and Losses
Mechanical drawing and clear wiring diagram
Please send us your requirements
A schematic diagram, load profile, interference spectrum, or existing data sheet is sufficient as a starting point. Our experts review the requirements and recommend a suitable standard model or develop a custom common-mode choke.
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Direct inquiry

Custom Inductors Directly from the Manufacturer

Transformers

Products

We design and manufacture custom transformers, chokes, and coils, drawing on our many years of experience and precisely tailoring them to your requirements for performance, size, and electrical safety.
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Development and Manufacturing of Custom Inductors

Development and Manufacturing

We develop and manufacture custom inductors tailored to your requirements for performance, quality, and compliance with standards. We rely on state-of-the-art simulation technologies right from the design phase.
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Certifications & Standards for Custom Inductors

Certifications & Standards

Our products are synonymous with high quality and proven safety. They meet strict European and international norms and standards, ensuring reliable performance in demanding applications.
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What can we do for you?
Contact our product experts
Tobias Nuffer
Tobias Nuffer
Managing Director & Key Accounting DE
+49 8341 93403 20
[email protected]
Direct inquiry
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What can we do for you?
Contact our product experts
Roland Jungen
Roland Jungen
Managing Director & Key Accounting DE
+41 44 927 26 24
[email protected]
Direct inquiry
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Do you have any questions about:

Storage Inductances

Just send us a short message and we will be happy to answer your questions by phone or e-mail.
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?

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What are the advantages of using DC voltage transformers compared to AC voltage transformers?

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More information about our storage inductors

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Switzerland
+41 44 927 26 26
[email protected]
Germany
+49 8341 9340320
[email protected]
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