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10 Quick Tips For Planar Magnetic Technology
Planar Magnetic Technology for Headphones

A few HiFi audio brands are reviving the planar magnetic technology. These companies make headphones with planar drivers that are based on the old school, which produce a an incredibly full, rich sound signature.

This paper analyzes the core properties of a planar magnet device by studying winding conduction loss leakage inductance, and winding capacitance. In addition, a strategy to reduce the parasitic elements in these devices is suggested.

Low profile or low vertical height

In comparison to traditional wire-wound magnetics, planar magnetic technology offers lower profile and higher efficiency. It also reduces leakage and parasitic capacitance. This allows for a smaller core to be used, which lowers the cost of the device. Furthermore, it does not require any clamping of the magnets. This makes it ideal for power electronics devices.

Planar magnetic technology has the advantage of being smaller and lighter than traditional headphones. It can also handle more frequencies without distortion. This is due to the flat diaphragm which is employed in these devices, which is often made of a thin film and has a conductor trace on it. The film can react quickly to audio signals and can produce high levels of sound pressure quickly and easily.

The sound produced by these devices will be more acoustic and more detailed. This is why they are preferred by many audiophiles, specifically those who want to listen to music at workplace or at home. It is crucial to remember that a planar magnet driver requires a powered amplifier as well as a digital audio converters in order to function correctly.

The resultant sound is more natural and precise than that produced by dynamic drivers. Planar magnetic drivers can also respond faster to changes in the audio signal, which means that they are perfect for listening to music that is fast.

Despite their advantages however, planar magnet drivers do have some drawbacks. Their high price can be partly due to the large amount magnetic material needed to operate. Another drawback is their size and weight which could be an issue when trying to make them portable.

Wide band gap (WBG) devices

Wide band gap (WBG), semiconductors are materials with higher electrical properties compared to conventional silicon-based devices. They can withstand higher voltages and current densities. They are therefore ideal for optoelectronics and power electronics applications. Wide band gap semiconductors, including gallium nitride and silicon carbide, can provide significant improvements in performance and size. They are also environmentally friendly than traditional silicon-based devices. These attributes make them appealing to satellite and aerospace companies.

Planar magnetic drivers operate using the same principles as dynamic drivers. An electrical conductor moves between two magnets fixed when audio signals travel through them. Planar magnetic drivers, however, utilize an array of conductors embedded or attached to a thin film-like diaphragm instead of coils. Conductors are a set of coils' that sit on the diaphragm and are positioned directly between two magnets. This creates the push/pull effect which triggers the diaphragm's to move.

This technology produces music without distortion and has a unique and pleasing sound. The driver is able to move uniformly and swiftly due to the even distribution of magnetic force over the entire surface and the absence of a coil behind the diaphragm. This produces a detailed and accurate sound. The resulting sound is known as isodynamic, orthodynamic, or magnetically-incident.

However, because of their intricate design and higher price headphones with planar magnetic drivers are generally more expensive than those using other driver technologies. There are some great and affordable options for example, like the Rinko from Seeaudio or S12 Z12 from LETSHUOER and others that were recently released.

Power electronics

Planar magnetics dissipate heat more effectively than traditional wire wound components. This allows them to handle more power without excessive stress or strain that is audible. This makes them ideal for applications such as headphones. Planar magnetics are more efficient and also offer greater power density. This technology is particularly suited to applications such as electric vehicle fast charging, battery management, and military systems.

Planar magnetic drivers work in a different way than dynamic driver headphones. Dynamic driver headphones employ a diaphragm suspended by a voice coil. When an electromagnetic signal is transmitted through the array and the magnets on the opposite side of the diaphragm are pushed together, a push-pull effect is produced. This causes soundwaves to move the diaphragm and produce audio.

Due to their higher volume-to-surface ratio which is why planar magnetic devices are more effective than conventional magnetics. This means they are able to disperse more heat, allowing them to operate at higher frequencies of switching without exceeding their maximum temperature ratings. They also have lower thermal sensitivities than wire-wound devices. This means they can be used in more compact power electronics circuits.

Designers must consider several factors to optimize a planar booster. This includes the design's core and winding configurations as well as loss estimation and thermal modeling. In the ideal scenario, the inductor will have a low leakage and winding capacitance. It should also be easy to integrate into the PCB. It must also be able to handle high currents and be of a compact size.

The inductor also needs to be compatible with multilayer PCBs with through-hole or SMD package. Moreover the copper thickness has be sufficient to limit eddy currents in the layers and also prevent thermal coupling between conductors.

Flexible circuit-based planar winding based on flexible circuits

In planar magnetics, flex-circuit-based windings can be used to construct a high-efficiency resonance. They are constructed using a single-patterned dielectric film and one-patterned copper foil. The most common is copper foil, which has excellent electrical properties and is processed to enable termination features on both sides. Conductors in a flex circuit are joined by thin lines that extend beyond the edges of the substrate, providing the flexibility needed for tape automated bonding (TAB). Single-sided flex circuits are available in a range of thicknesses as well as conductive coatings.

In a typical pair of headphones, a diaphragm sandwiched between two permanent magnets. These magnets vibrate in response to electric signals sent from your audio device. www.headphonesshop.uk generate the sound wave that moves across the entire surface of the diaphragm and creates a piston-like motion which prevents distortion and breakups.


One of the primary benefits of planar magnetic headphones is their ability to reproduce a larger frequency range, especially in the lower frequencies. The reason is that planar magnetic headphones have a wider surface area than traditional cone-shaped speakers, allowing them to move more air. They can also reproduce bass sound at an increased level of clarity and detail.

However they are expensive to produce and require a powered amplifier and DAC to function correctly. They are also larger and heavier than traditional drivers, making them difficult to transport. Their low impedance also require much more power to drive, which can become a problem when listening to music at a high volume.

Stamped copper winding

Using stamped copper windings in planar magnetic technology could increase the window's utilization ratio and cut down on manufacturing costs. The method involves putting grooves in the coil body to help support the windings at a layer-accurate location. This helps prevent deformations of the coil as well as improves the accuracy of the coil. It also reduces the amount of scrap produced during production and enhances quality assurance. This kind of planar coil is commonly employed in contactor coils as well as relay coils. It is also used in ignition coils and small transformers. It is also used for devices with wire thicknesses up to 0.05mm. The stamping creates a uniform coil with high current density. The windings will be perfectly placed.

Unlike traditional dynamic drivers, which use a voicecoil of conductor behind the diaphragm in order to create sound waves Planar magnetic headphones feature an array of flat conductors applied directly on the thin diaphragm. These conductors vibrate when electronic signals are applied. This creates a pistonic movement that produces sound. Planar magnetic headphones create higher-quality sound compared to other kinds of audio drivers.

This technology can increase the range of transducers. This is important since it lets them operate in a much wider frequency range. Furthermore, it lowers the overall power requirement of the driver.

This new technology does have some drawbacks. For instance, it can be difficult to make a diaphragm made of thin film that is capable of handling the extreme temperatures required by this kind of technology. However, companies such as Wisdom Audio have overcome this issue by introducing an adhesive-free product that can withstand temperatures of up to 725degF (385degC). This allows them to produce audio with the highest quality without compromising durability or longevity.

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