Switch Power Supply 12V 2A 25 Watt with CE RoHS

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 5 Piece pc

Supply Capability:: 3000 Pieces per Day pc/month

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Output Power	1 - 50W
Output Type	Single
Input Voltage	110 or 220
Output Voltage	3~48V
Output Frequency	50/60Hz
Output Current	0.5A~8.3A
Certification	CE ROSH
material	Aluminium

Switching power supply CE ROHS

Built-in EMI filter

Low output ripple noise

Protection:Over load.Over Voltage.short circuit.

Features

1.Low price and high reliability

2.Built-in EMI filter

3.Low output ripple noise

4.2:1 wide input range

5.Protectio cirns Over load.short circuit

6.1500VDC I/O isolation

7.DC adjustment range,less than 10% rated output voltage

8.Line regulation (full load)>0.5%

9.Output over load protection 1055~150% hiccup mode.auto-recovery

Q: I encountered a similar problem with you, I use the 12V switching power supply with dimming decoder, into the dimming console DMX512 control, in the dimming when the switching power supply is creak sound, ask you there A better solution? thank: Noise source will be there, the frequency of the ear is sensitive to the range of 20Hz ~ 20KHz,

Q: How are two ac inputs connected to the socket? G1 and G2 and FG is not connected together, and then connected to the chassis? thank you: AC means AC, FG connection housing, G is GND representation. Know what it means to pick up the simple. Method is important, the results of a look to know

Q: What is the basic principle of switching power supply?: So as to achieve automatic adjustment of the high-frequency pulse voltage duty cycle to achieve the final output DC voltage stability. Adjust the output DC voltage principle is the same, with artificial methods to change the oscillation frequency and pulse duty to achieve the purpose of changing the output DC voltage. Simply put the basic principle of switching power supply is: AC variable DC variable pulse voltage and then change the process of a DC. It has a high precision regulator, small consumption and other characteristics.

Q: UPS and switching power supply what is the difference: UPS power can still maintain the equipment after a period of time, commonly used in more important occasions, so that there is a period of time to buffer, do a good job of data preservation. And there is a certain regulator, the input voltage although the conventional 220V or 110V (Taiwan, Europe and the United States), but sometimes will be high and low, then the UPS, the output voltage to maintain a stable value. Switching power supply a power is useless, and its connected equipment immediately power, there is the role of pressure, the conventional 220V or 110V into 5v 12V 15V .... and so on.

Q: How to quickly analyze the switching power supply failure and timely repair: Off-line test ATX power supply, first measured in the standby state of the PS-ON and PW-OK signal, the former is high, the latter is low, plug 9 feet in addition to output + 5VSB, the output of other voltage. Followed by the ATX switch power to wake up, with a wire to ATX plug 14 feet PS-ON signal, and any ground (3,5,7,13,15,16,17) in the short of a foot, This step is the key to the detection, the ATX power from the standby state wake-up to start the controlled state, this time PS-ON signal is low, PW-OK, + 5VSB signal is high, ATX plug + 3.3V, 5V, ± 12V with output, switching power supply fan rotation. The above operation can also be used as an optional ATX switching power supply off-line verification method.

Q: What is the meaning of the magnetic ring color in the switching power supply?: Magnetic ring color Magnetic ring are black A, Up to that is deep black, bright black this difference But the difference is not strict, Or button-type magnetic ring with a shell, sub-white black, gray We are doing this

Q: What is the power of the switching power supply?: Wuhan Xingtong power, professional R & D and production of custom switching power supply

Q: Led lights switching power supply controller how to repair: If you just use it alone, it's broken. It is recommended to buy one. Because the maintenance needs to change the device, and their purchase of equipment is expensive, and can not determine that the device is bad. If you are learning to repair, it depends on the principle of switching power supply. Principles of understanding, the manufacturers work, maintenance is very simple.

Q: I have an output voltage of 3V, 500MA switching power supply, would like to change the output voltage of 5V charger specific parts to change the value, such as feedback resistor, switch transformer (there are two).: In order to maintain the overall performance of the switching power supply (mainly efficiency and ripple), it is best to increase or decrease the number of secondary winding turns of the transformer. If the window area is insufficient, you can reduce the diameter of a file, the other winding do not have to move. If you do not change the transformer, but only change the resistance of the sampling resistor, you can also adjust the output voltage in a small range. If the switching power supply performance requirements are not high, the load power is not large, non-batch production, you can adjust to emergency use.

Q: I do 12V2A switching power supply when the 2A load, under normal circumstances work is normal. But is the beginning of the load that moment, when adding more than 1.3A, the output voltage dropped first low and then quickly returned to normal, what reason? This is of course not normal, the same load, for someone else's power but not the problem. How should we solve this problem? Just test a phenomenon is that when the sudden removal of the load when the voltage is also the first drop and then return to normal state. How to solve it?: this is normal phenomenon. The load becomes larger, to maintain the same voltage, the power output impedance will become smaller, power duty cycle to become larger, the adjustment is the time required, the dynamic response speed of the voltage drop will be relatively small.

Nowadays, our products are exported to numerous countres, like US, Australia, UK, etc. Successful improvements on technical processes and professional customer services have been recognized by more and more new or old customers. We hardly receive any negative feedback from customers. Our products so far have catched up with the consistency with world standard .

1. Manufacturer Overview

Location	Zhejiang,China (Mainland)
Year Established	2011
Annual Output Value	Below US$1 Million
Main Markets	Southern Europe 4.57% Domestic Market 28.13% North America 22.50% South America 12.31% Eastern Europe 1.76% Southeast Asia 9.85% Oceania 0.28% Mid East 9.00% Eastern Asia 0.84% Western Europe 8.65% Northern Europe 2.11%
Company Certifications	gistration of a foreign trade operator; BUSINESS LICENSE; Custom Import & Export licence

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Oakland,Buenos aires,BOGOTA
Export Percentage	51% - 60%
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	1,000-3,000 square meters
No. of Production Lines	5
Contract Manufacturing	OEM Service Offered Design Service Offered
Product Price Range	Average