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

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5 Piece pc
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3000 Pieces per Day pc/month

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Product Description:

Output Power

1 - 50W

Output Type


Input Voltage

110 or 220

Output Voltage


Output Frequency


Output Current






Switching power supply CE ROHS

Built-in EMI filter

Low output ripple noise

Protection:Over load.Over Voltage.short circuit.



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

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Q:How to calculate the loss of switching power supply
Are you going to calculate the actual power consumption of the switching power supply? This requires knowing the load current or load power of the switching power supply and the efficiency of the switching power supply. General switching power supply efficiency (220v-48v) is greater than 80%, 80% efficiency, its power consumption is equal to the load / 80%.
Q:How the phase margin and gain margin of the switching power supply are measured
1. Requires a dedicated spectrum analyzer. The instrument (such as the Fluke Spectrum Analyzer, HP, etc.) can automatically scan the BODE of the measured power supply.
Q:12V7A motorcycle battery can not use 14V3A switching power supply charge
Completely, the charging time is 3 hours. If the adjustment to 15 volts is also OK, the charging time is shortened.
Q:Switching power supply transformer inductance and air gap, energy storage, the specific relationship between the three?
You are not a flyback transformer only done once the air gap concluded that there may be two of your core wrapped around the loose is not the same, anyway, it is impossible under the same conditions, the air gap to increase the amount of inductance but large.
Q:Switching power supply and communication power difference
Switching power supply is a high-frequency oscillating electronic circuit for voltage conversion. The main contents are: step-up or buck, direct current conversion to alternating current, or alternating current to direct current.
Q:Why should the switching power supply feedback the winding power supply?
Of course, you can use an external power supply to separate the power supply to the switch chip. But that way, the cost is high.
Q:Will the electronic prawns, the general switching power supply can accept the emotional load?
Not necessarily So that the output if it is emotional load will affect the module loop So it may cause the switching power supply loop is unstable
Q:24-volt switching power supply why leakage
1, the ground has two y capacitors Neutral grounding way connection, (fire --- || --- --- ---| --- zero) In this way if the socket is good grounding is no problem, But the socket ground if the virtual connection, this time on the line with 110V (may be higher and lower) equivalent potential, if the electrical appliances are metal shell ground, it is possible that the entire shell are charged, the pen will be bright, Ma hand.
Q:24V 1A switching power supply how to output 0-10V I <1mA adjustable signal ah
but your switching power supply is constant pressure The current is not adjustable, not good to do.
Q:Led switching power supply used in what place
Used in LED lamps, the general use of more street lights, or some relatively high-end LED lamps, because a switching power supply at least dozens of pieces to hundreds of pieces of the price.
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  
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