Planar Magnetic Technology for Headphones

A few HiFi audio companies are trying to revive the planar magnetic technology. These companies manufacture headphones that feature planar drivers that are based on the old school that deliver an incredibly full, rich sound distinctive.

This paper focuses on the fundamental characteristics of a planar magnetic device by studying the inductance of the winding, leakage capacitance and conduction losses from winding. Additionally, a method for reducing the parasitic elements is proposed.

Low profile or low vertical height

As compared to traditional wire-wound magnets, planar magnetic technology offers lower profile and greater efficiency. It also reduces leakage inductance and parasitic capacitance. This method also allows for the use of a smaller-sized core, which reduces the total cost of the device. It also does not require the magnets to be clamped. This makes it ideal for use in power electronics devices.

Another advantage of planar magnetic technology is that it is lighter and smaller than traditional headphones. It also can handle higher frequencies with no distortion. This is due to the diaphragm, which is flat, that is used in these devices, which is typically composed of a thin film and has a conductor trace on it. The film is able to react quickly to audio signals, and create high sound pressure levels.

This means that the audio produced by these devices is more pronounced and clear. Many audiophiles like it, particularly those who want to listen to music at home or in the office. It is crucial to remember that a planar magnetic driver requires a powered amplifier as well as a digital audio converter to perform properly.

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

Despite their advantages however, planar magnetic drivers come with several disadvantages. One is their high price that can be attributed to the massive amount of magnetic material required to run. Their weight and size can be a challenge particularly when they are being utilized as portable devices.

Wide band gap (WBG) devices

Wide band gap (WBG), semiconductors are materials with higher electrical properties than traditional silicon-based devices. They are able to withstand higher current density as well as higher voltages and lower switching losses. They are therefore suitable for optoelectronics as well as power electronics applications. Wide band gap semiconductors, including gallium nitride and silicon carbide, can offer significant enhancements in performance and volume. They are also environmentally friendly than traditional silicon-based products. These attributes make them attractive for satellite and aerospace manufacturers.

Planar magnetic drivers work using the same principles as dynamic drivers. An electrical conductor plantsg.com.sg moves between two magnets fixed when audio signals pass through them. Planar magnetic drivers, however, use a flat array with conductors encased or attached to a thin diaphragm-like film instead of coils. Conductors function as a set of 'coils' which are placed directly on the diaphragm, and are placed between two magnets, resulting in the push/pull effect that causes the diaphragm to move.

This technology produces music without distortion and has a unique, headphonesshop.Uk 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 results in a clear and accurate sound. The resulting sound is known as isodynamic, orthodynamic, or magnetically-incident.

Generally, headphones with magnetic drivers with planar design cost more than other models due to their complexity and higher price. There are some excellent and affordable options, such as the Rinko from Seeaudio or S12 Z12 from LETSHUOER, that have recently been released.

Power electronics

Planar magnetics are able to disperse heat more efficiently than wire wound components. This lets them handle more power without excessive stress or audible strain. This makes them perfect for headphones and other applications. Planar magnetics are more efficient and provide a higher power density. The technology is ideally designed for applications such as electric vehicle fast charging, battery management, and military systems.

Compared to dynamic driver headphones, which make use of a diaphragm suspended by a voice coil, planar magnetic drivers operate using a different method. When an electromagnetic signal is transmitted through the array and the magnets on the opposite side of the diaphragm get pushed together and a push-pull effect is created. This creates soundwaves that move the diaphragm, and create audio.

Planar magnetic devices are more efficient than conventional magnetics because they have a higher surface-to-volume ratio. They can disperse heat more efficiently and allow for higher switching frequencies while maintaining their maximum temperature ratings. They have lower thermal sensitivity when compared to wire-wound devices. This allows them to be employed in smaller power electronic circuits.

Designers should consider a variety of factors to optimize a planar booster inductor. These include the core design and winding configurations as well as loss estimation and thermal modeling. Ideal inductor characteristics include low winding capacitance, minimal leakage inductance, and simple integration into a PCB. It should also be able handle high currents and have a compact size.

In addition, the inductor should be compatible with a multilayer PCB using a through-hole or SMD package. Moreover the copper thickness has be sufficiently thin to prevent eddy currents from entering the layers and also prevent thermal coupling between conductors.

Planar winding based on Flex circuits

In the field of planar magnetics, flex circuit-based windings can be used to produce an inductor that is high-efficiency. They are made from dielectric films that are single-patterned and a single-patterned copper foil. The most popular choice is copper foil, which has exceptional electrical properties and is processed to permit termination features on both sides. Conductors in a flex circuit are connected by thin lines that extend beyond the edges of the substrate, thereby providing the flexibility needed for tape automated bonding (TAB). Single-sided flexes are available in many different thicknesses and conductive finishes.

In typical headphones, the diaphragm is set between two permanent magnets that move in response to electric signals that are sent by your audio device. The magnetic fields produce a soundwave that travels along the entire surface of diaphragm. This piston-like motion helps prevent distortion and breakups.

Planar magnetic headphones are able to reproduce a wide range of frequencies, notably at lower frequencies. This is due to the fact that they have a larger surface area than conventional cone drivers, which allows them to move more air. They also reproduce bass sounds at a higher level of clarity and details.

However the headphones that are planar magnetic are expensive to make and require a powered amplifier as well as a DAC to work properly. They are also larger and heavier than standard drivers, making them difficult to transport. Their low impedance also require a lot more power to drive, which can become a problem when listening to music at high volume.

Stamped copper winding

Utilizing stamped copper windings in planar magnetic technology could increase the window utilization rate and reduce manufacturing costs. The technique works by placing grooves on the coil body which ensure a precise layer of the windings. This prevents deformations of the coil as well as improves tolerances. It also reduces the amount of scrap that is created during production and improves quality assurance. This type of planar coil is typically employed in contactor coils as well as relay coils. It can also be used in ignition coils as well as small transformers. It can also be used for devices with wire thicknesses as high as 0.05mm. The stamping creates an uniform coil with an extremely high current density. It also ensures that the windings are perfectly positioned on the coil body.

Unlike traditional dynamic drivers, which use a voicecoil of conductor behind the diaphragm to create sound waves the planar magnetic headphones comprise an array of flat conductors applied directly to the diaphragm. When electronic signals are applied, these conductors vibrate, creating a pistonic motion that creates sound. Planar magnetic headphones provide superior sound quality compared to other types of audio drivers.

In addition to reducing weight and Headphones Shop costs in addition, this technology can also increase the bandwidth of planar magnetic transducers. This is significant because it allows them to operate over a wider frequency range. Additionally, it reduces the power requirements of the driver.

However, there are disadvantages of this new technology. For instance, it could be challenging to create a diaphragm made of thin film that can handle the extreme temperatures required by this kind of technology. Manufacturers like Wisdom Audio have overcome the problem by creating a solution that is adhesive-free and is able to withstand temperatures as high as to 725 degF. This allows them to create audio with superior quality, without sacrificing durability and longevity.