High-Quality Chokes and Coils from Your Experienced Winding Technology Manufacturer
Chokes and coils are passive inductive components used in electrical devices, power electronics, and audio technology. Modern electronics would be inconceivable without these seemingly simple elements, commonly referred to as inductors.
At our site in Laatzen near Hanover, we develop and manufacture custom chokes and coils based on specific customer requirements. As a knowledgeable and trusted coil manufacturer, we ensure the highest quality standards and maximum precision.
The Difference Between Chokes and Coils
In terms of construction, chokes and coils are identical: most consist of insulated wire wound around a magnetizable core.
The individual windings are typically separated by a thin insulating lacquer. The component’s characteristics depend primarily on the number of windings.
The distinction lies in their application: if the component is used to generate or influence electric current, it’s called a choke or choke coil. If it’s involved in signal processing, the term coil is more common.
Choke Coils Explained
Choke coils are typically built with an iron or ferrite core. Their frequency-dependent reactance suppresses high-frequency currents, while allowing DC to pass with minimal resistance.
Calculating Inductance
To calculate a coil’s inductance, multiply the square of the number of turns by the permeability of the core material, the magnetic constant, and the ratio of the cross-sectional area (in square meters) to the coil length (in meters). The unit of inductance is Henry (H).
Types of Chokes and Coils
Due to their wide range of applications, numerous choke and coil types exist. Common variants include:
- Toroidal coils
- Cylindrical coils (solenoids)
- Air-core coils (no core)
- Chip inductors
- Bifilar coils
- Planar coils
Custom Solutions from German Production
Standard chokes and coils are available for many applications. However, if off-the-shelf products won’t do, we can manufacture custom chokes and coils for you. As an experienced inductor manufacturer, we offer extensive expertise in adapting products to meet specific requirements.
Chokes and Coils in Series Production
As a well-equipped and flexible coil producer, we offer not only custom manufacturing but also series production. We serve businesses of all sizes.
Industries that benefit from our series production include automotive, home appliance, electronics, and other sectors with high-volume needs.
Benefits of „Made in Germany”
Chokes and coils from a German manufacturer offer several advantages:
- Consistent quality
- High production standards
- Use of premium materials
- Controlled production conditions
To qualify as „Made in Germany”, most of the development, design, production, and quality control must take place in Germany. With Wickeltechnik Langer, you’re choosing a company that produces exclusively in-country. This ensures:
- High availability (no reliance on fragile global supply chains)
- Shorter delivery routes (faster, more flexible, and more eco-friendly)
- Sustainability (lower emissions, raw material consumption, and noise pollution)
By purchasing from us, you not only gain superior quality – you also reduce your environmental footprint.
Wide Product Range
We manufacture a variety of chokes and coils, including:
Smoothing Chokes
These reduce output ripple in the DC operation of rectifiers. For grid-frequency power supplies, smoothing chokes must have a minimum inductance of 100 mH.
Ignition Transformers
Used to transmit ignition pulses to thyristors, and for voltage transformation in flash lamps.
Cross-Wound Coils
Common in high-frequency applications, these coils feature a zigzag winding technique where windings cross over each other. Ideal for RF preamplifiers and oscillator circuits in long- and medium-wave ranges.
Commutation Chokes
Used to smooth current spikes and enhance EMC protection at the input of inverters. They help reduce inverter feedback to the power grid.
High-Voltage Chokes
These are used for step-up/down voltage transformation and isolation. They shield the secondary side from noise and surges originating from the primary system.
High-Current Inductors
Constructed with wide flat-wire coils and magnetic components. Applications include EVs, power electronics, mobile devices, power supplies, and renewable energy systems.
Chokes and Coils
CHOKES AND COILS
Buy Chokes and Coils from Wickeltechnik Langer
Whether you need smoothing chokes, switch-mode power supply chokes, energy storage inductors, ignition transformers, or high-voltage coils – our family-owned company is your trusted partner.
With over 55 years of experience in the winding technology sector and unmatched expertise, we offer solutions tailored to your requirements. Now in its third generation, our company has built lasting client relationships and completed countless successful projects.
Do you have questions about our chokes and coils or wish to discuss your specific requirements? Contact us via form, phone, or email – we’ll be happy to assist you and develop a solution that meets your exact expectations.