SMPS Switching Power Supply 12V 5A 60 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:: 30000 Pieces per Day pc/month

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Output Power	51 - 100W
Output Type	Single
Input Voltage	110 or 220
Output Voltage	3~48VDC
Output Frequency	50/60Hz
Output Current	1.25A-20A
Certification	CE ROSH
material	Aluminium

Good quality with good price

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:How to constant voltage switching power supply into a constant current, how to rectification ?: In fact, from the control point of view, the constant current source and constant pressure source is the same, but the sampling point is different; also said that the control object or the target is different, and the constant pressure source to constant current source only need to pass the current Sampling Resistor Sampling Current

Q:In the design of switching power supply, the input power is smaller, switching transformer primary side of the inductance but the greater the? Transformer primary side of the greater the amount of inductance, the transformer is not the volume will increase?: DC "can have a different meaning, and if the voltage through the resistor does not produce a voltage drop through the resistor voltage drop is called" DC "voltage, then the DC refers to a constant voltage that does not change with time, or from the Fourier decomposition Is the DC component of the periodic signal (the DC component is equal to the mean in one cycle when the input is a periodic signal and the circuit has a periodic steady state). High frequency "DC voltage" is clearly not a constant voltage, it is estimated that the PWM thing, if it is a cycle input, then it will not only contain the DC component, but also contains the various sinusoidal AC component. Among them, the DC component in the inductor there is no pressure drop, and its components in the inductor voltage drop, so the coil inductance is certainly not short circuit. Of course, if the input signal DC component is too large, sinusoidal AC component is too small, then it may be too small inductance voltage, the entire coil current is too large. The above is the meaning of DC from the perspective of frequency domain analysis. Of course, if you avoid the concept of DC directly to the time domain analysis, that is, on the first floor zchy4610 analysis, high level charge, the current index rises, low level discharge, current index decreased, in any case, the peak current and average current are not The voltage is only added to the resistor so much.

Q:"First AC into DC, and then into a higher frequency of alternating current through the high-frequency transformer voltage conversion" Why? "LED display as a high-precision instrument to select the switching power supply instead of the transformer" Why?: Switching power supply and the difference between the transformer is a very stable switching power to a certain range of voltage into a very low voltage or high voltage (such as 110V-250 input, the output voltage can be stable control in the required voltage plus or minus 0.5 V)! Transformer output voltage is changing with the input voltage, that is, the input voltage increases the output voltage is also increased, the input voltage to reduce the output voltage is also reduced. Because the switching power supply is the first AC into DC, DC power through the power switch and then become a higher frequency of alternating current through the high-frequency transformer voltage conversion is not only efficient and high frequency after the greatly reduced the volume, but also save the copper and iron loss. Because the switch is controlled by the power switch, the switch is turned on for a short time and the output voltage can be maintained. When the load is large, the switch keeps working to keep the output voltage. So the switching power supply output voltage is stable, can be used as LED display and other high-precision instrument selection.

Q:What is the relationship between the output voltage of the switching power supply and the PWM signal?: Brother ~ ~ give you advice ~ ~ power problem is not so good ~ ~ ~ Switching power supply output voltage is controlled by the PWM duty cycle to achieve the adjustment ~ When the pulse width, duty cycle increases, the output voltage increases, otherwise ~ ~

Q:Switching power supply 220 / 24V input break can be frequent power off: Design has a project, but look at your off time.

Q:24v switching power supply can do car battery charger?: Can, but need to be part of the conversion, coupled with constant current control circuit, different battery charging current is different, such as 165AH battery do not use 16.5A current, 14V charge 10 hours

Q:What is the output of this group? If the power supply to the 48V, is not +24 V termination of the electrical 48V + input, -24V termination of the electrical 0? is this okay? Voltage difference is 48V ah? Thank you very much!: When the positive ground, then the voltage is -24V, because the earth is zero potential surface

Q:What is the difference between Switch Mode Power Supply and electronic switch? Where are they?: To the electronic switch to open a signal, the line connected, disconnect the control signal or to a shutdown signal, the electronic switch off. The electronic switch differs from the normal switch in that it is non-contact. So to avoid such as manual switch button and contactor lights in the opening and breaking when the spark loss and mechanical noise. And control the power of small control easy. Switching devices in the switching power supply, such as MOS tube and IGBT are all electronic switches, SCR also belong to the electronic switch. And we usually mention the electronic switch is the market of solid-state relays, etc., it is also the principle of the use of thyristor.

Q:I am now learning switching power supply, read some of the information in the "work in the CCM state of the flyback power", because of this do not understand, would like to ask the power of friends can give to explain, very grateful! As well as the principle of positive and reactive work mode? And tell me what I want to learn switching power supply only little knowledge of what I now learn from?: 1) on the switching power supply CCM and DCM state is the transformer magnetizing current, in fact, flyback switching power supply secondary side of the current working state there are three: Magnetically search the critical state of the current: At this time the primary shutdown power Toff = the ratio of the secondary inductor to the output voltage divided by the secondary peak current. The discontinuous state of the magnetized current DCM: Toff> The ratio of the secondary inductor to the output voltage is divided by the secondary peak current. Continuity of magnetization current CCM: Toff ≤ The ratio of the secondary inductor to the output voltage is divided by the secondary peak current. 2) forward and flyback power mode principle Single-ended flyback is the primary MOS turn-on when the secondary diode is turned off and the forward is synchronized. 3) Want to learn about switching power supply first learn electrician electrical and magnetic look at power supply network.

Q:Switching power supply, what is the difference between the charger: Chargers usually refer to a device that converts alternating current into low voltage direct current. And the switching power supply is also the exchange of DC.We are now using the mobile phone charger are generally switching power supply (the advantages of small size, light weight, high efficiency.) Before the old phone with some of the charger is not switching power supply it Inside the transformer transformer and then rectifier filter (because it is used in the transformer, so the volume to be bigger, a little cumbersome, less efficient).

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