12v/24v/36v Ferrite Core Transformer

Description

12v/24v/36v Ferrite Core Transformer is the most important part of switching power supply. There are many topologies in switching power supply. For example, half bridge power conversion circuit, when working, two switch triodes turn on to generate 100kHz high-frequency pulse wave, and then through the high-frequency transformer for voltage transformation, output AC, the number of turns of each winding coil of the high-frequency transformer determines the output voltage. In the typical half bridge transformer circuit, the most prominent are three high-frequency transformers: the main transformer, the drive transformer and the auxiliary transformer (standby transformer). Each transformer has its own measurement standard in the national regulations, such as the main transformer. As long as the power supply is more than 200W, its magnetic core diameter (height) shall not be less than 35mm. When the power of auxiliary transformer is less than 300W, its core diameter is 16mm

 

Parameters

 

Specification:

12v/24v/36v Ferrite Core Transformer

1. Operating frequency: 10khz-200khz

2. Output power: customized 

3. Operating temperature: -40℃ to +125℃

4. Storage temperature: -25℃ to +85℃

5. Storage humidity: 30 to 95%

The characteristics:

12v/24v/36v Ferrite Core Transformer is a kind of power transformer whose working frequency exceeds the medium frequency (10kHz). It is mainly used as high frequency switching power transformer in high frequency switching power supply, and also used as high frequency inverter power transformer in high frequency inverter power supply and high frequency inverter welding machine. What are the characteristics of high frequency transformer? Now let’s share it.

 

1. Current distribution

A typical secondary winding of high frequency transformer has several coils in parallel. Each secondary winding is coupled with the same primary winding. Therefore, the number of ampere turns of secondary winding current is equal to that of primary winding. This characteristic is particularly useful for parallel rectifier circuits. If the winding current is equally distributed, there is no need to add current sharing resistor or other components in the parallel rectifier circuit.

 

2. High power density

Because of its small size and excellent temperature dissipation characteristics, high frequency transformer can be tightly packaged with related semiconductor devices and inductors to achieve high power density. Its current density can reach 30A / module.

 

3. High power

Adjust the leakage inductance, so that it can have a very fast switching time, very low insertion loss, it can reach a very high power. The inter turn conduction loss between secondary winding and primary winding is very small.

 

4. High current density

High frequency transformer has excellent temperature rise characteristics. Because of these characteristics, it can achieve high current density in a very small package.

 

5. Low cost

The whole high-frequency transformer is composed of a small number of related cheap components, and the assembly is very convenient, so the cost of the transformer is very low.

 

Details