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SANHE ER28 Small Structure Power Supply Flyback Transformer For Projector

Short Description:

Model NO. : SH-ER28-002
SH-ER28-002 is a power-type main transformer used in small projectors, providing the required voltage for the basic functions of the projector, such as the light source required for projection, and the fan for cooling. The product has been designed in terms of safety, insulation performance and temperature rise to ensure that the product can achieve a long and stable service life.

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The main function is to supply power to the projector and cooperate with related circuits to achieve the following functions:
1. Light up the light source for the projector and ensure that the light source can quickly reach the required brightness after turning on the projector
2. Supply power to the control module to realize auxiliary functions such as lens adjustment and brightness adjustment
3. After the machine is turned on, the fan for heat dissipation can be started to ensure that the internal temperature of the projector will not be overheated and avoid failure.


1.Voltage & Current Load
Output V1 V2 V3 Vcc
Type(V) 24V 12V 20V 10-24V
Max Load 2A 3A 0.4A


2.Operation Temp Range: -30℃ to 70℃
The maximum temperature rise:65℃
3.Input Voltage Range(AC)
Min 90V 50/60Hz
Max 264V 50/60Hz

Dimensions:(Unit: mm)& Diagram

Dimensions (1)

Dimensions (2)


1. Miniaturized design. While ensuring the safety distance, the external dimensions are minimized.
2. Large temperature rise range, stable performance and small fluctuation of output voltage
3. The safety distance is long. Three layers of insulated wire and protective tape of magnetic core ensure sufficient safety distance.


1. Small compact structure design that is suitable for small projectors.
2. More reliable insulation design and safer to use
3. Good load capacity ensures that the projector can start working quickly and stably



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