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Low Frequency transformers are used in markets as industrial, vending or lighting where energy conversion is still needed.They are an easier solution than high frequency transformers, but as effective as the others.
At Shenzhen Kunyo Tech, we have different size of those transformers depending on the power range where is necessary to work. And we can provide low frequency transformer with frequency as 50/60 Hz,60 Hz.400 Hz.
We can provide customers with high-quality custom low frequency transformers .And we can customize EI type low frequency transformer, isolation transformer, autotransformer, toroidal transformer, pin transformer, audio transformer, BK control transformer, 220V / 110V voltage converter. Welcome to send us your design request and we can customize for you.
Low frequency transformer, also known as industrial frequency transformer, generally works at 50~60 HZ. Core uses silicon steel sheets (Silicone-Steel-Laminations), which is an electrical device used to change voltage. It is mainly used to convert AC signals from one voltage level to another while keeping the frequency unchanged, which can meet the needs of power conversion in different scenarios. Low frequency transformers have a wide range of applications, such as household appliances, industrial production, power systems, etc.
Low frequency transformers can not only be used to transmit signal voltage and signal power, but also to achieve impedance matching between circuits, and have an isolation effect on DC power. The working principle of low frequency transformers is the same as that of high frequency transformers. Regardless of the working frequency, energy is transmitted through electromagnetic induction. However, due to the different frequencies of high frequency and low frequency, the iron cores used in transformers are different. Low frequency transformers generally use high magnetic permeability silicon steel sheets, while high frequency transformers use high frequency ferrite cores.
Iron core: The iron core is the core of the low-frequency transformer and is usually made of iron-silicon alloy. The main function of the iron core is to provide a low magnetic resistance path to minimize energy loss.
Winding: The winding is a coil wound by a wire, which is divided into a primary winding and a secondary winding. The primary winding is connected to the input power supply, and the secondary winding is connected to the output load. The windings are connected through the iron core to achieve energy transmission and conversion.
Case: The casing is usually made of insulating material and is used to wrap the entire transformer to protect the windings and iron core while preventing the risk of electric shock. The casing can also play a role in heat dissipation, keeping the temperature of the transformer within a safe range.
According to the assembly method, it is divided into pin type, drawer type, and mother-and-child sleeve; according to the shape, it is divided into I-shaped and Wang-shaped; common materials include nylon, PP, PBT, PET, etc.
Classified by color, there are white sheet, black sheet and gray sheet; Classified by common materials,there are H50, H18, Z11, etc.; Classified by thickness, there are 0.5mm and 0.35mm, etc.; Classified by shape, it has EI shape,UI shape andring shape. etc., a
Temperature, voltage, current, safety mark, etc., such as RH130-2, 250V, 2A, printed with PSE mark, pay attention to the molding requirements of engineering specifications when using.
When we choose the electronic wire for low frequency transformer, we need to pay attention to the UL wire number, wire diameter, color, length, opening, terminals, etc.
There are fireproof and non-fireproof kraft paper. For the Iron bridge, there are horizontal and vertical, round ears and square ears, electroplating material, etc.
The working principle of low-frequency transformer is based on Faraday’s law of electromagnetic induction and the law of conservation of energy.When AC current passes through the primary winding, the magnetic field generated will induce eddy currents in the transformer core. The magnetic field generated by the eddy current will cause the magnetic flux in the core to change, and then induce the electromotive force in the secondary winding, thereby generating an output voltage.
The ratio of the output voltage of the transformer to the input voltage is called the transformer’s transformation ratio. The transformation ratio of the transformer can be changed by adjusting the ratio of the number of turns of the primary winding and the secondary winding. When the transformation ratio is less than 1, the transformer is a step-down transformer; when the transformation ratio is greater than 1, the transformer is a step-up transformer.
The performance parameters of low-frequency transformers mainly include rated power, transformation ratio, transformer efficiency and power factor.
1. Rated power: The power that the transformer can continuously output. The rated power is generally expressed in watts (W) or kilowatts (kW).
2. Turns ratio: The transformation ratio of the transformer, that is, the ratio of the number of turns of the secondary winding to the number of turns of the primary winding. The transformation ratio determines the ratio of the transformer’s input and output voltages.
3. Transformer efficiency: The ratio between the transformer’s output power and its input power. Transformer efficiency is generally expressed as a percentage, and a more efficient transformer can achieve lower energy losses.
Low frequency transformers are widely used and important in household appliances. They transmit electrical energy through the principle of electromagnetic induction, providing a stable power supply environment for the normal operation of household appliances. With the advancement of technology and the continuous upgrading of consumer demand, the application of low-frequency transformers in household appliances will become more extensive. In the future, low-frequency transformers are expected to play a greater role in more fields and bring more convenience and comfort to people’s lives.
In TV, low frequency transformer plays a important role. There are many sophisticated electronic components inside the TV, which have extremely high requirements for voltage stability. Low frequency transformer can convert unstable power supply voltage into stable output voltage, provide a stable power supply environment for the TV, and ensure the normal operation of the internal circuit of the TV. Without the support of low frequency transformer, the TV may have problems such as blurred image and distorted sound due to unstable voltage, and may even damage the electronic components inside the TV.
The low frequency transformer in the refrigerator also plays an important role. The refrigerator compressor is the heart of the refrigerator, and its startup and operation require extremely high stability of the power supply voltage. The low frequency transformer can ensure that the compressor starts and runs at a stable voltage, thereby extending the service life of the compressor and improving the refrigeration efficiency of the refrigerator. If the refrigerator does not have a low frequency transformer, the compressor may start and stop frequently due to unstable voltage, which will not only consume more electricity, but also affect the refrigeration effect and service life of the refrigerator.
Air conditioner is one of the indispensable household appliances in modern families, and the application of low frequency transformer in air conditioner is equally important. There are many electronic components inside the air conditioner that require stable voltage drive, such as control circuit boards, motors, etc. Low-frequency transformers can ensure that these electronic components work under stable voltage, thereby improving the working efficiency and service life of the air conditioner. In addition, low-frequency transformers can also reduce the electromagnetic interference and radiation generated by the air conditioner during operation, reducing potential harm to the human body.
Electromagnetic oven is one of the common kitchen utensils in modern kitchens. It heats pots and pans through the principle of electromagnetic induction. In the induction cooker, the low frequency transformer plays a key role. It can convert the 220V AC power of household electricity into low frequency AC power suitable for the operation of the induction cooker, thereby achieving fast and efficient heating.
In addition to the household appliances mentioned above, low frequency transformers are also widely used in other household appliances, such as washing machines, microwave ovens, rice cookers, etc. These household appliances also require a stable power supply environment during operation to ensure the normal operation of the internal circuit. The low frequency transformer transmits electrical energy through the principle of electromagnetic induction, providing a stable power supply environment for these household appliances, ensuring that they can work normally and extend their service life.
Established in 2013,Shenzhen Kunyo Technology is committed to designing and manufacturing the custom magnetic components, including high frequency transformer,low frequency transformer ,audio transformer, power transformer and inductor etc.
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