Single Output Switching Power Supply with PFC - 1U 480 Watt

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Piece pc

Supply Capability:: 200,000 Pieces per Day pc/month

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Output Power: 401 - 500W
Output Type: Single
Input Voltage: 85 - 264VAC
Output Voltage: 3.3 - 48V all available
Output Current: 11 - 85A all available
Dimensions: 278 x 127 x 43(mm)

Specificatons

Universal input

PF>0.98@115VAC;>0.94@230VAC

All 105C capacitors

Japanese brand for key components

Built in fan cooling

Features

1) High reliability

2) Universal AC input/ full range

3) PF>0.98@115VAC; PF>0.94@230VAC

4) Protection: overload/ over voltage/ over temperature/ short circuit

5) Built in remote sense (optional)

6) Built in fan cooling

7) 5 years limited warranty

8) Dimensions: 278 x 127 x 43mm

Q: The original circuit is in accordance with the 20K switching frequency design inductance, and now the switching frequency to 10K, do not know if this will be any problem? Inductance in the output of relatively large power, there will be buzzing sound, what is the reason?: The The child's hearing limit is higher! You will change the transformer and so on. If it is home, there is a child to be careful! Will harm the child health!

Q: What is the flashing time in the switching power supply?: Blanking time intuitively speaking, in this period of time the controller does not move. For example, IC current detection pin, whenever the power MOSFET to open a current sense resistor is not inevitable to produce a peak voltage.

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: Fg is the power supply and the earth (that is, the chassis) connected; g1 and V1 is a group (g1 for this road negative, V1 is the positive); the two ac terminals through the power cord can be directly connected to the socket, no positive and negative points; G2 and V2 are a group (g2 for this negative side, V2 is positive). Switching power supply is the use of modern power electronics technology to control the switch on and off the time ratio, to maintain a stable output voltage of a power supply, switching power supply generally by the pulse width modulation (PWM) control IC and MOSFET composition. With the power electronics technology development and innovation, making switching power supply technology is constantly innovating. At present, the switching power supply to small, lightweight and efficient features are widely used almost all of the electronic equipment, electronic information industry is the rapid development of an indispensable power supply.

Q: How to make the switching power supply does not delay power: The relay directly to the circuit off, the big capacitor may be continued to flow about

Q: Switching power supply TL431 what role, I did not find the circuit in 431 the corresponding circuit: Capacitor in the role of the circuit: with blocking DC, connected to the exchange, to prevent low-frequency characteristics,

Q: Now I want to buy a larger power test power, about 1KW. I have no money, so I want to buy a switching power supply, so that you can save a lot of money, but do not know can not 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: Switching power supply CE certification is probably how much money: Or how much money, there are two or three thousand cheap, you have seven or eight points, of course, the requirements of high, then there are more than ten thousand, specifically look at your needs, look at my name in detail

Q: What is the definition of the maximum discharge current, battery backup time, and discharge time? Always confused, when the calculation is always wrong ... ...: What is your battery capacity and how much you become a high voltage There is also an accurate calculation of the discharge current of the battery and the attenuation of the discharge

Q: Switching power input is marked with 220V AC, 36V output, but the actual input voltage is 238V, the output of the switching power supply affect it? Will it damage the switching power supply? Do not know the reason is not the voltage, power after a period of time (10 minutes), the switch power suddenly no output, and the display is not bright, switching power is not already broken? Guiqiu prawn to the doubts!: 238V on the open power supply no effect, the general AC85-265V; What is the load on your switching power supply? Will it be the cause of the load? The indicator light does not shine is likely to switch the power supply is broken, or that is the input power is cut off,

Q: For the specific parameters for the requirements (power: 350W or more working voltage: DC 300V) switch switch power supply which are commonly used? To say that there are specific places in Jinan where to sell? Anxious ~: IGBT tube is the most commonly used IRGP20B60PD. MOS tube is the most commonly used IRFP450, IRFP460. Transistor is the most commonly used 2SK2850.

We have various advanced equipment, such as wave soldering and reflow soldering machine, RoHS testing, environmental testing system, etc. Only top international brand components are adopted for our key parts to ensure long lifetime and high reliability. Each unit is given full load burn-in test.

1. Manufacturer Overview

Location	Shanghai,China (Mainland)
Year Established	1995
Annual Output Value
Main Markets	North America 10% South America 3% Eastern Europe 5% Southeast Asia 8% Africa 2% Oceania 2% Mid East 1% Eastern Asia 2% Western Europe 15% Northern Europe 10% Southern Europe 1% South Asia 2% Domestic Market 39%
Company Certifications	CE/LVD Certificate; TUV Certificate; Hengfu Logo Registration Certificate; RoHS Certificate

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Shanghai
Export Percentage	31% - 40%
No.of Employees in Trade Department
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	10,000-30,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	Design Service Offered Buyer Label Offered
Product Price Range