Power Transformer 220 VAC, 3W 5W 10W 20W 30W Watt Output 6,9,12,15,18,24,Volt

Description

Power Transformer 220 VAC, 3W 5W 10W 20W 30W Watt Output 6,9,12,15,18,24,Volt
Why the transformer output voltage is very high: direct measurement of no-load AC voltage is a little high, with the increase in load, the voltage will decrease is normal.
Referring to the above figure, the AC Vo rectified into a pulsed DC V1, then filtered by the capacitor into a DC V2. The capacitor will be charged in the peaks to compensate for the voltage in the valleys (discharged in the valleys to increase the output voltage), so the RMS value of the V2 voltage will be increased, up to the peak of the AC (the capacitor capacity is large enough and the discharge current is small). The peak value of alternating current is two times the RMS value (1.414 times), so the DC voltage after rectification and filtering is the nominal voltage multiplied by 1.414, for example, after rectification and filtering of a 12V transformer, the DC voltage is around 16.968V (not taking into account the voltage drop of the rectifier circuit and the transformer error).
3W Product Parameters.
Product specification:EI41*17
Product power 3W/NA
Input Voltage :220V
Output Voltage:9V
Wire length:17cm
Main material: pure copper enameled wire, high-quality silicon steel sheet
Dimensions: steel plate length 36 high 32 thick 17mm
Installation hole distance:47MM
Product weight:0.11KG
5W Product Parameters.
Product Specification:EI41*20
Product power 5W/NA
Input Voltage :220V
Wire length:13.5cm
Main material: pure copper enameled wire, high-quality silicon steel sheet
Dimension:42*35*40mm
Product weight:0.11KG
10W Product Parameters.
Product Specification:EI48*24
Product power 10W/NA
Input Voltage :220V
Wire length:15cm
Main material: pure copper enameled wire, high-quality silicon steel sheet
Dimension:50*40*42mm
Product weight:0.38KG
20W Product Parameters.
Product Specification:EI57*30
Product power 20W/NA
Input Voltage :220V
Wire length:15cm
Main material: pure copper enameled wire, high-quality silicon steel sheet
Dimension:60*52*50mm
Installation hole distance:72mm
Product weight:0.7KG
30W Product Parameters.
Product Specification:EI66*33
Product power 30W/NA
Input Voltage :220V
Wire length:15cm
Main material: pure copper enameled wire, high-quality silicon steel sheet
Dimension:68*62*58mm
Installation hole distance:82mm
Product weight:0.95KG
Warm Tips
1. Transformer output for alternating current (AC), not divided into positive and negative poles, the need for DC output, please buy with caution.
2. Transformers are used in a wide range, and the load capacity of different sizes, we can not know a variety of We can not know the transformer requirements of various equipments. You have to check the input and output voltage, AC and DC power, external dimensions, and the appearance of the same.
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On May 14, 2024 at 11:24:11 PDT, seller added the following information: