Application Cases of Metallic Film Capacitors

Discover the versatility and advantages of Metallic Film Capacitors with our informative coverage. Make informed decisions for your business with our comprehensive articles. Optimize your website with our SEO-friendly content today.

Consumer Electronics Field

• Chargers: For example, the 100W Gallium Nitride desktop charger launched by Xuanyang Technology uses the KYET series MPB 105J450V film capacitors from Keya inside. These capacitors are made of high-temperature-resistant film materials, are smaller in size and have significantly lower noise than ordinary film capacitors. In the charger, they can stabilize the current, filter out noise and ensure the safety and stability of the fast charging process, thus enhancing the charging efficiency and user experience.
• Audio Equipment: Audio equipment has high requirements for sound quality. Metallic film capacitors, with their characteristics such as being non-polar, having high insulation impedance, excellent frequency characteristics and low dielectric loss, are widely used in the crossover circuits and coupling circuits of audio equipment. They can ensure that the audio signals are transmitted with less distortion and effectively improve the sound quality.

Home Appliance Field

• Air Conditioners: The compressor of an air conditioner requires a stable supply of current during startup and operation. Metallic film capacitors can be used for filtering and buffering current shocks, making the compressor start more smoothly, reducing the running noise, prolonging the service life. Meanwhile, when the outdoor unit of the air conditioner operates in a high-temperature environment for a long time, it can also maintain good stability to ensure the cooling effect of the air conditioner.
• Washing Machines: In the motor control circuit of a washing machine, metallic film capacitors help to stabilize the operation of the motor, reduce the current fluctuations when the motor starts and stops, improve the efficiency and reliability of the motor, making the dehydration and washing processes of the washing machine more stable and smooth and reducing the incidence of faults.

New Energy Vehicle Field

• Drive Inverters: In the drive inverters of new energy vehicles, metallic film capacitors, as DC-link capacitors, can absorb the high-pulse current at the end of the electronic control bus, smooth the bus voltage, protect the IGBT switches from the impact of high-pulse current and instantaneous voltage, and also play a filtering role to suppress strong electromagnetic interference. For example, models such as BYD's "Qin", "Tang", "e6" and Tesla all use film capacitors. With the development of the new energy vehicle market, their applications are becoming more and 广泛.
• Vehicle Chargers: The vehicle chargers of new energy vehicles need to efficiently and stably convert alternating current into direct current to charge the batteries. Metallic film capacitors can be used in the filtering circuits of the chargers to improve the charging efficiency and stability and ensure the safety and reliability of the charging process.

Industrial Equipment Field

• High-Frequency Heating Equipment: For example, in high-frequency heating machines and induction heating power supplies, MMKP82 double-sided metallized polypropylene film capacitors are widely used in the high-voltage and high-frequency pulse circuits of these equipment for LC resonant absorption, coupling, isolation and other filtering or DC-link. They can withstand large currents, high voltages, have low self-inductance, high stability and self-healing properties, which can meet the high-performance requirements of high-frequency heating equipment for capacitors.
• Welding Machine Power Supplies: When a welding machine is working, it will produce large current fluctuations and electromagnetic interference. Metallic film capacitors can be used in the filtering and voltage-stabilizing circuits of the welding machine power supplies to effectively reduce the current fluctuations and electromagnetic interference, improve the welding quality and the stability of the equipment.

Power System Field

• Reactive Power Compensation: Shunt metallic film capacitors can be used to compensate the reactive power of inductive loads in the power system, improve the power factor, reduce the line losses in the circuit, improve the voltage quality and enhance the stability and economy of the power system.
• High-Voltage Transmission and Distribution Lines: Series metallic film capacitors can be connected in series in the industrial-frequency high-voltage transmission and distribution lines to compensate the distributed inductance of the lines, improve the static stability and dynamic stability of the system, and increase the power transmission distance and transmission capacity.