Din Rail Power Supply 50 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: 1 - 50W
Output Type: Single
Input Voltage: 85 - 264VAC
Output Voltage: 12 - 48V all available
Output Current: 1 - 4.2A all available
Dimensions: 45 x 89.2 x 75.2mm

Specificatons

All 105C capacitors

Japanese brand for key components

DC OK signal

CE approved

Factory 20 years experience

Features

1) Universal AC input / full range

2) Installed on DIN rail TS35 / 7.5 / 15

3) High reliability, compact design

4) DC OK signal output

5) Protection: overload/ over voltage/ short circuit

6) 100% full load burn-in test

7) Built in EMI filter

8) 5 years limited warranty

9) Dimensions: 45 x 89.2 x 75.2mm

Q: A DC / DC switching power supply input with UC3843 is a 24V power supply between two power supplies is up to 200M line now the situation is DC / DC power supply at no time when the load is measured at this time DC / DC power input It is actually less than 15V if the DC / DC power supply is loaded with about 10W and the 24V power supply output is adjusted to 27V or more when the DC / DC power supply is working In front of the wrong In the load when the 10W when the front power output is adjusted to 27V measured when the power input voltage is 14.5V or so when the no-load time is normal add another point With 10W when the front of the power output is adjusted to 27V below the two power between the current is significantly increased at this time into the DC / DC power supply voltage from 15V down to 6,7V looks more like the back of the power from Excited and DC / DC of this power supply in the 9V or so input conditions can work properly: DC / DC no load when the input less than 15V? Look at the 24V power output is how much, if it is 15V instructions that the power supply voltage is not correct, otherwise it is DC / DC no-load power is too large

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: Name and function of the components of the switching power supply T1, T2, R11, R12, D6, C2, Q1, D5, U1, U6,: This is a single-ended flyback switching power supply circuit, in this switching power supply, T2 is a high-frequency transformer, the role of voltage conversion, R11 is the starting resistance of U1, the input voltage of 85 - 2-265 AC, the choice should be in the 1--2W, 150 - 330K resistance between, usually need to use multiple resistors in series, otherwise it is easy to damage. R12 is the current limiting resistor of the switch, but also U1 overcurrent current detection resistor, the output short circuit when the voltage drop on the resistor will become high, U1 protection to stop the output drive signal. D6 is the transformer provided to the U1 supply voltage rectifier. C2 is the main filter capacitor, usually with electrolytic capacitors, voltage is greater than the maximum voltage input of 1/3, the capacity of about 1W / micro-law output. Q1 is the FET, is the switch tube. Generally also mos. D5 and R7, C5 are connected to the transformer primary to form the transformer spike voltage absorption circuit. When the switch is turned off, the moment the transformer will have a very high induced voltage generated, this circuit can be absorbed by this spike voltage (or is limited to a safe Of the range). Also called DRC or RCD spike voltage absorption circuit. U1 is the switch tube drive circuit, here should be a PWM integrated circuit, also known as pulse width modulation, is the English "Pulse Width Modulation" abbreviation, referred to as pulse width modulation. U6 is a photocoupler,

Q: Hello everyone, I have a switching power supply chip with UC3845, fault: turn on the power instantaneous power indicator light and then off. After the investigation did not find a short circuit phenomenon. When the shortcomings of several consecutive shortcuts on the receiving side of the two pins, the power can be activated. What is the reason for this? thank you all!: Oh, the above two answers I think can not help you solve the problem, because it is not feasible. First of all, according to what you say, you can accurately judge, you are full or overloaded when the normal start. This only shows a reason that the power is instantly activated when the impact is protected. The solution to the problem is to analyze the cause of the problem first. Where the protection is due to power on the moment when the load with the impact of over-current. So the overcurrent protection value should be slightly adjustable to solve. Such as single-ended flyback power supply, can reduce the resistance of the lower end of the MOS tube in order to increase the output over-current protection value, half-bridge or full-bridge circuit, then appropriate to reduce the peak current protection value or output over-current protection value, solved. Many of the output overcurrent or short circuit protection is used in the transformer primary side using the transformer (magnetic or magnetic core) to detect the transformer primary current, to protect the output overload situation. The value of this detected can be appropriately adjusted (the voltage drop resistance value can be appropriately reduced).

Q: What is the traditional way to convert alternating current to DC? What is the machine doing this function? Now with the general switching power supply What is the difference and what benefits compared to the traditional switch of this DC will be the machine?: Conventionally, the method of converting alternating current into alternating current (DC) is to convert the AC voltage through the transformer and then through the rectifier filter circuit to DC. The function of this machine is called linear DC power supply. Now widely used high frequency switching power supply, Words: Linear power technology is very mature, low production costs, can achieve a high degree of stability, ripple smaller, their own interference and noise are relatively small, but because the work in the frequency (50Hz), the transformer volume is relatively large, efficiency Low (generally full load work efficiency is only about 80%) the overall size is larger, it is more bulky and the input voltage range is high; and switching power supply is working high frequency state, the transformer is relatively small, relatively light, but the output The ripple is larger than the linear power supply, but because of its simple structure, low cost and high efficiency (the efficiency of switching power supply on the market can reach more than 90%) in many occasions has replaced the linear power supply, is the future trend of power development.

Q: What is the industrial switching power supply: Industrial switching power supply refers to the switching power supply used in the industrial field Power can be divided into civil, industrial, military, and even aviation, aerospace Industrial switching power supply meets industrial requirements. For example, civil switching power supply generally require working temperature 0 ~ 70C, the industry is generally required in the -40 ~ 85C, military requirements are -55C can work properly.

Q: Switching power supply CE certification is probably how much money: CNAS laboratory, TUV ITS UL witnessed laboratory. Switching power supply CE certification, to do LVD + EMC, LVD pay attention to temperature and pressure, EMC attention to conduction radiation. See ID is the mobile phone number

Q: Is switching power and transformer the same thing?: Not the same thing. Simply put, the transformer is a circuit of electronic components, and switching power supply is composed of a number of electronic components can achieve the corresponding power conversion circuit. That is, from the function: Different switching power supply can be a variety of different forms of electricity into another form of electricity, such as: Can complete the AC and DC high / low voltage conversion; can complete the AC high / low frequency conversion; can complete the AC / DC conversion and so on. (Switching power supply which can use the transformer as a circuit component) And if only a well-designed transformer as an electronic component, it can only achieve a fixed frequency AC high / low voltage conversion.

Q: The voltage is too low to refer to the INPUT voltage range below the switching power supply: How little, but not large, because the switching power supply is 110 volts or 220 volts input, but the output voltage is regulated output power, so no harm, do not worry

Q: I have an output voltage of 3V, 500MA switching power supply, would like to change the output voltage of 5V charger specific parts to change the value, such as feedback resistor, switch transformer (there are two).: Replace the output transformer can be, but must be the same with the resistance value should be no problem! 11

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