SMPS CE RoHS 5V 20A 100 Watt

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5 Piece pc
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30000 Pieces per Day pc/month

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Product Description:

Output Power

51 - 100W

Output Type


Input Voltage

110 or 220

Output Voltage


Output Frequency


Output Current






Good quality with good price

2 years' quality warranty

Low output ripple noise

Protect: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.over voltage

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

10.High efficiency and low operation temperature

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Q:AC-DC switching power supply, how to connect, input AC, AC, FG three ends
Input AC, AC, respectively, then the power line FireWire, zero line, pay attention to view the two input terminals, preferably the power of the internal fuse connected to the other end of the line connected to the other end of the line, the fire line can also be connected to the normal line. FG ground wire.
Q:Switching power supply, starting resistance is very hot, no output
That is, switching power supply can not afford to vibrate, if it is self-oscillation to check the rectifier components are not short-circuit, positive feedback circuit is not normal.
Q:Switching power supply how maintenance
1. No output, the fuse is normal This phenomenon shows that the switching power supply is not working or into the protection state. First to measure the power control chip boot pin whether there is a starting voltage, if no start voltage or start voltage is too low, you have to check the starting resistor and start the foot of the external components of the leakage, this time if the power control chip is normal, then the above check You can quickly find the fault. If there is a starting voltage, then the output of the measurement control chip in the boot moment whether there is a high, low level of the jump, if no jump, indicating that the control chip is bad, peripheral oscillator circuit components or protection circuit problems, Chip, and then check the external components; if a jump, the switch is generally bad or damaged. 2. Insurance burn or fry the main inspection 300V on the large filter capacitor, rectifier bridge diodes and switch tubes and other parts, anti-jamming circuit problems can also lead to insurance burn, black. It should be noted that: due to the breakdown of the switch lead to insurance burns will generally be the current detection resistor and power control chip burned. Negative temperature coefficient thermistor is also easy to burn together with insurance. 3. There are output voltage, but the output voltage is too high This failure is generally from the regulator sampling and regulator control circuit. In the DC output, sampling resistor, error sampling amplifier such as TL431, optocoupler, power control chip and other circuits together constitute a closed control loop, any problem will lead to an increase in output voltage. 4. Output voltage is too low In addition to the regulator control circuit will cause the output voltage is low.
Q:Switching power supply (AC-DC) use notes and tips
8, AC input power supply definition Input power = output power / (input voltage * power factor * efficiency)   9, sink leakage current: multiple power supply in use, the common intake of the same ground point, the total leakage current is composed of each unit of the leakage current composition, then to check the reliability of the protective grounding wire and grounding resistance is achieved Request to avoid electric shock.
Q:Switching power supply, what is the difference between the charger
2, the switching power supply is a form of power conversion, the characteristics of the power supply is working in the switch state.As the switching power supply efficiency, so it has been a very wide range of applications. Charger is usually 220V AC power supply into the appropriate DC voltage, Charger can be used to make the charger, but he also used in color TV, VCD and other occasions, with one of the following one. The charger can be used to make the charger, but he also used in color TV, VCD and other occasions, with the following one Simple diagram to express the relationship between the two:
Q:What is the open-frame switching power supply?
That is, network power switch. The host will be issued according to the need for instructions, linear power supply is the power transformer with a variable frequency power supply, converted into low-voltage alternating current (such as 12V, 12v, the transistor gives you two common models, finishing 300v DC, the user can Any corner of the earth control electrical equipment, power and power, Switching converters are the core components of modern power conversion technology, mainly divided into two categories, mainly to see whether its parameters meet your design requirements, so that the secondary to get the required voltage. .. I do not say the field effect, Used to require a higher frequency response, without wasting manpower and time to personally go. Intelligent switching power supply and the host is a signal connection, and then control the switching power supply output power and so on.
Q:What is the difference between what we usually call switching power and ups?
Generally speaking, switching power supply and UPS power supply principle and role are different: 1. Switching power supply is the use of modern power electronics technology, control switch opening and closing time ratio, to maintain a stable output voltage of a power supply. (DC-DC); the other is the AC switching power supply (AC-DC). Switching power supply output is generally DC, the role of emphasis on power conversion The 2.UPS is uninterruptible power supply (uninterruptible power system) in English abbreviation, is able to provide a sustained, stable, uninterrupted power supply. The principle is relatively complex, the input and output are AC AC-AC (internal including AC-DC, DC-DC, DC-AC). The role of focusing on maintaining the output power supply stability, while ensuring that the input can still continue to uninterrupted power supply.
Q:Is the switching power supply bad?
The actual input voltage at 238V, the output of the switching power supply has no effect, the general input voltage range of 10% or more; "Power after a period of time (10 minutes or so), the switch power suddenly no output, and the display does not light," the switching power supply is already broken
Q:Switching power supply where to buy? Is there a recommended shop?
It is recommended not to go to the electronic market, to buy the words can go to 21 sites, or apply for samples
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