Switching power supply transformer
is a power transformer with switching tube. In addition to the voltage conversion function of ordinary transformer, it also has the function of insulation and power transmission. It is commonly used in switching power supply and other occasions involving high frequency circuits.
Classification of switching power supply transformer:
The switching power supply transformer
is divided into single-excitation switching power supply transformer
and double-excitation switching power supply transformer
. The working principle and structure of the two kinds of switching power supply transformers
are not the same. The input voltage of the single-excitation switching power supply transformer
is a unipolar pulse, and the output voltage is divided into forward and flyback voltage. The input voltage of double-excitation switching power supply transformer
is bipolar pulse, which is usually the output of bipolar pulse voltage.
The function of switching power supply transformer:
1.A self-excited (or other-excited) intermittent oscillator is composed of a switching power supply transformer
and a switching tube, which modulates the input DC voltage into a high-frequency pulse voltage.
2.It plays the role of energy transfer and conversion. In flyback circuit, when the switch is on, the transformer stores the electric energy into magnetic energy, and releases it when the switch is off. In forward circuit, when the switch is on, the input voltage directly supplies the load and stores the energy in the energy storage inductance. At the end of the cut-off period, the energy storage inductor is used to transfer the energy to the load continuously.
3. It converts the input DC voltage into the required low voltage.
Switching power supply products:
60W Single Output Switching Power Supply
100W Quad Output Switching Power Supply
250W Quad Output Switching Power Supply
350W Quad Output Switching Power Supply