Single Output Switching Power Supply with PFC 200 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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Detailed Product Description

Quick Details

Output Power: 101 - 200W
Output Type: Single
Input Voltage: universal input
Output Voltage: 3.3 - 48V all available
Output Current: 4.2 - 40A all available
Dimensions: 199 x 99 x 50mm

Specificatons

Universal input

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

All 105C capacitors

Japanese brand for key components

UL,TUV,CB,CE,CCC approved

Features

1) High reliability

2) UL,TUV,CB,CE,CCC approved

3) Universal AC input/ full range

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

5) Overload/ over voltage/ over temperature/ short circuit protection

6) Built in fan cooling

7) Built in EMI filter

8) 100% full load burn-in test

9) 5 years limited warranty

10) Dimensions: 199 x 99 x 50mm

Q:When switching power supply is the most efficient: According to design parameters set. Under normal circumstances, full load time is higher than the no-load.

Q:The hands of a switching power supply, the use of 2SC3320 switch, the output is 24V7A, after adding the load will always burn 2SC3320 switch, no load no problem, how is it, there are drawings, that expert help to see, thank you: In general, the main reasons for the damage to the power switch tube are the following 13: ?????? 1. Soft start circuit failure ?????? 2. Switch tube integrated circuit board anti - peak absorption circuit failure ?????? 3. Positive feedback is too strong ?????? 4. Timing capacitor failure leakage ?????? 5. Decoupling Capacitor Failure in Regulating Circuit ?????? 6. The negative feedback loop of the regulator circuit

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?: (1) Low power is corresponding to large inductance Lp is inversely proportional to Ippk Lp = Vin (min) * Dmax / Ippk * f * k (Ippk: primary peak current K: current ripple rate) Ippk is proportional to the input power Ippk = 2Pin / (1 + k) Vin (min) * Dmax ∴Lp is inversely proportional to Pin (2) inductance volume and energy, and the relationship between the inductance is not absolute, large power is to correspond to the large volume of the inductor. In the case of a selected core L = AL * N? (AL: inductance (material dependent) N: number of turns) ∴ sense and the core material and the number of turns

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?: Before the load, the current is not large, switch on and off time ratio is to meet the capacitor charge, discharge balance, to maintain the output voltage unchanged. When the load is connected, the load is mainly from the capacitor, the capacitor discharge quickly, the voltage drop is very low, the switch has not adjusted conduction and turn-off time than the capacitance of the charge and discharge balance, this adjustment is gradually It takes time. So the output voltage, that is, the voltage on the capacitor, the first rise after the rise.

Q:Can notebooks have an external switching power supply?: The third step, to buy their own or make their own switch two power lines, welding to the motherboard switch contacts, do not have points positive and negative. The fourth, test boot is normal. Fifth, the motherboard into the chassis, the installation of notebook.

Q:What are the LLVD and BLVD in the switching power supply?: (LLVD) a power down; ????(BLVD) secondary power; The so-called power, the second power is on the switching power supply (power cabinet) said. Often, the electrical equipment of the power plant and substation is divided into two main categories: equipment and secondary equipment. A device: refers to the direct use of electrical equipment for the production, transmission and distribution of electricity, through the completion of these equipment to produce electricity and power to the user's task. By a certain device connected according to a certain law for the completion of the power of the hair, change, lose, with the task of the composition of the circuit, known as the electrical main wiring, also known as a circuit or a system. Secondary equipment: refers to the work of a device to monitor, measure, operate and control equipment. The circuit that represents the secondary device interconnection relationship is called secondary wiring, also called secondary circuit or secondary system.

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: According to your instructions to write your power is two output, Two AC terminals through the power cord can be directly connected to the socket, no positive and negative points; FG is the power and the earth (that is, the chassis) connected; In the order you say, G1 and V1 are a group (G1 is this negative, V1 is positive); G2 and V2 are a group (G2 for this road negative, V2 is positive); Note: FG and G1, G2 can not be mixed!

Q:Switching power supply maintenance methods can be divided into several steps: 4, in the switching power supply repair practice, there are many switching power supply using UC38 × × series 8 feet PWM components, most of the power can not work because the power supply is damaged, or chip performance degradation. Starting current increases due to start circuit as shown below. When there is no VC after the open circuit, PWM components can not work, need to replace the same power resistance with the original resistance. When the PWM component starts to increase the current, you can reduce the R value to the PWM component can work properly. In the repair of a GE DR power supply, the PWM module for the UC3843, detection found no other anomalies, R (220K) and then a 220K resistor, PWM components work, the output voltage is normal. Sometimes due to the external circuit failure, resulting in the VR terminal 5V voltage is 0V, PWM components do not work, in the repair Kodak 8900 camera power supply, encountered this situation, connected with the VR side of the external circuit, VR from 0V to 5V, PWM components work properly, the output voltage is normal.

Q:New to buy the switching power supply, it should be bought fake, and after the output with the amount of output DC24V, then a small motor to 23.7, and a parallel down to 23.5, and on the 23V, and help me analyze Cause, change any solution: This switching power supply does not provide the power you want. The The Best for one. The The The regulator is too bad.

Q:Why some switch power there are two switch tube? Two transformers, one big and one small series: There are four have not seen a transformer to promote a transformer on the main transformer, two tubes, but not push-pull or half bridge

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