Ee 19 High Frequency Transformer

EE19 high frequency transformer performance

1. Working frequency: 20khz-500khz

2. Output power: 0.5 to 10 W

3. The working temperature: - 40 ºC to + 125 ºC

4. Storage temperature: 25 ºC to + 85 ºC

5. Storage humidity: 30 to 95%

Features of EE19 high frequency transformers

EE19 horizontal high frequency transformer has the characteristics of small size, low price and high reliability.EE type transformer is a basic ferrite core with stable performance, low cost and large current.It is widely used in power conversion and line filtering.The volume is from small to large to meet the needs of various application circuits.If use 155 ºC or 180 ºC of heat-resistant Ann polyester enamelled wire, can satisfy different temperature conditions, are suitable for all kinds of switching power supply and inverter, UPS, etc.

Iii. Application of EE19 high frequency transformers

EE-19 horizontal high frequency transformers are commonly used in mobile phone chargers, dc-dc converters, drive transformers, digital cameras, hand-held switch power chargers, etc.

Price of EE19 high frequency transformers

EE - 19 price range of horizontal high-frequency transformer is in commonly 0.85 1.2 yuan between, price mainly depends on the product process complexity, customer demand for raw materials, and whether to ask a safety certificate, etc.

Electronic transformer and semiconductor switching devices, semiconductor rectifier devices, capacitors together, known as the power device in the four major components.Its function in power supply device:

Acting as a voltage and power converter;

It plays the role of transmitting broadband, audio frequency, medium cycle power and signal.It can transmit pulse, drive and trigger signal.It can insulate the original edge and the auxiliary edge.

It can change the output phase by changing the output phase.To change the output frequency;

It can match the output impedance with the load impedance.

It can stabilize output voltage or current and adjust output voltage.Acting as an ac and dc filter;

It can inhibit electromagnetic interference and noise.It can absorb surge current and slow down the change rate of current.It can store energy and help semiconductor switch to change direction.Act as a switch;

It can regulate the inductance.

Switching voltage, current or pulse detection signal.It can be seen from the above enumeration that both dc power supply, ac power supply and special power supply cannot be separated from electronic transformer.Materials for winding transformers

In order to manufacture a transformer, we must have some knowledge of the relevant materials.1. Core materials:

The core materials used are mainly iron sheet, low silicon sheet and high silicon sheet. The addition of silicon into the steel sheet can reduce the conductivity of the steel sheet and increase the resistivity, which can reduce the eddy current and reduce its loss.We usually referred to as the silicon steel sheet for the silicon steel sheet, the quality of the transformer used in the quality of silicon steel sheet has a lot to do, the quality of silicon steel sheet is often use of magnetic flux density B, B value of common black iron, low silicon is 9000-11000, 6000-8000, high silicon is 12000-16000.2. Commonly used materials include

Enamelled wire, sand - covered wire, silk - covered wire, most commonly used enamelled wire.For the requirement of wire, it is conductive performance is good, insulating paint layer has enough heat resistance performance, and must have certain corrosion resistance.In general, it is best to use high strength polyurethane enameled wire of model Q2.3. Insulation materials