Switch Power Supply 12V 2A 25 Watt with CE RoHS
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 Piece pc
- Supply Capability:
- 3000 Pieces per Day pc/month
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Output Power | 1 - 50W |
Output Type | Single |
Input Voltage | 110 or 220 |
Output Voltage | 3~48V |
Output Frequency | 50/60Hz |
Output Current | 0.5A~8.3A |
Certification | CE ROSH |
material | Aluminium |
Switching power supply CE ROHS
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: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:How to constant voltage switching power supply into a constant current, how to rectification ?
- Can not be converted, because the work of different ways to work the object is also different. Due to constant voltage source and constant current source has different circuit characteristics, it can not be replaced with each other. The respective circuit characteristics are as follows: Constant voltage power supply (regulated power supply): can be a constant output voltage to the load power supply. The ideal internal resistance of the constant voltage power supply is zero and can not be shorted when used. Constant current power supply (constant current source): A power supply that can output a constant current to the load. The ideal internal resistance of the constant current power supply is infinite and can not be opened when used.
- Q:As shown below, I used a switch chip tny276pn, optocoupler pc817, regulator source tcl431 and some small components (capacitors, resistors, etc.) designed a 5Vdc switching power supply. Transformers are custom, according to the flyback type, 132kHz, 85 ~ 265Vac parameters to do. The upper right corner of the picture p2 end is a 20-30 ohm coil, and now found that the input voltage dropped to 20Vac, 5Vdc was unstable, coil control of the magnet was to jump, I would like to 20Vac this parameter increased to 60 ~ 80Vac, So that the coil control of the magnet in the low voltage when the high jump, how should modify the circuit? Thank you.
- The maximum power of your power is 1.25W, the overall power supply power by 70% efficiency of 1.8W. In this case need to modify the transformer. To the place there are the following: 1, the transformer to increase the ratio; such as the original is 200: 5, now changed to 300: 5. Now want to do your request 60-80VAC input protection, you need the current transformer parameters to be calculated; 2, the transformer sensation increased; proposed to change to 4mH ~ 8mH. Once the two done, the protection voltage will 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:Switching power supply 220 / 24V input break can be frequent power off
- Design has a project, but look at your off time.
- Q:Drawings indicate DC-DC switching power supply can be replaced with AC-DC switching power a?
- Can be common, AC input to rectify to work, but the input voltage is DC = 1.4AC Caixing
- Q:Four-way monitoring switching power supply is not just a camera circuit can all the way? Or is there a problem with the equipment or line? The camera will appear short-term flash, shaking, black screen phenomenon. Now is the four cameras are connected to the positive and negative, the power is 12V6.3A, plus a small 12V1A power alone access to a camera, the results of a separate shine, the last black screen. The original problem of the camera or a problem, no problem or no problem. And the fault is short, I suspect that the camera problem, but the manufacturers that no problem. Depressed ah! Which a master to help one.
- I understand that this is the case where you have four monitor cameras and are on a power cord, so that the line pressure drop is too large, resulting in loading the voltage on each camera is too low. Because your problem is not very clear, such as wire diameter and length, the camera's rated current, etc., here I make a hypothesis: the camera's rated voltage of 12V current of 1A (general working current of 0.4A or so), diameter For 0.5 square mm, the power cord to the camera length of 50 meters, switching power supply for the DC12V5A. 1) Single camera resistance: R = 12 / 0.4 = 30 ohms 2) 4 cameras and the total resistance on a line is: R total = 30/4 = 7.5 ohms 3) Resistance on line: R line = Resistivity * L / S = 0.0175 * 50 * 2 / 0.5 = 3.5 ohms (actually greater than this number) 4) The voltage assigned to the camera U = IR = 12 / (7.5 + 3.5) * 7.5 = 8.2V Solution: switching power supply in the power of about 60W is (DC12V5A) on it, the amperage is not the bigger the better, as long as the camera is not less than the total rated current can be, the power cord to a camera Line to reduce the total current to reduce the voltage drop on the power line, the diameter of the distance to see your distance, generally within 100 meters with 1 square mm line.
- Q:Teacher asked, I said that can improve power efficiency, there are small size and high efficiency characteristics. What else does it mean? For example, in the control of the characteristics of
- High-frequency switching power supply of strong penetration, good adhesion, can effectively improve the deposition rate of the coating; flexible use, simple operation; protection function is complete;
- Q:Is the DC power supply a switching power supply?
- Yes! Modern switching power supply there are two: one is the DC switching power supply; the other is the AC switching power supply. DC power supply that is DC power supply, is to maintain a stable current in the circuit device. Such as dry batteries, batteries, DC generators and so on. DC power supply has positive and negative two electrodes, the potential of the positive pole is high and the potential of the negative electrode is low. When the two electrodes are connected with the circuit, the potential difference between the two electrodes can be kept constant, so that the positive electrode Negative current.
- Q:24V switching power supply, 220V input and output three terminals: 24V + 24V- GND. Excuse me. Where is this GND connected? In the PLC (such as Siemens) on the L + M to (ground that symbol) Switching power supply is connected to the ground in the PLC? There are some sensors on the terminal marked with three vertical and horizontal grounding symbol, but also to be connected to the switching power supply on the symbol terminal? What is the relationship between the chassis and the switching power supply on this land? Is it a thing?
- You said too messy, I read for a long time, I still use my logical language to tell you! There are some high-end switch, lamp or import switch, the lamp is a ground option. As you said 24V switch, GND should be connected to the switch box or case, assuming that the switch box and the case is non-metallic natural do not have to pick up, the ground is mainly for the metal chassis with electrical appliances, when the fire line leakage On the chassis, the chassis connected to the ground short circuit lead to tripping, play a safe role, so your power must have three lines, that is, line of fire, zero line, ground, your electrical appliances with a ground mark Place to be connected to the power ground, I do not know if you understand, if any questions please continue to ask!
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 |
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|---|---|
| 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 |
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| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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| 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 |
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Switch Power Supply 12V 2A 25 Watt with CE RoHS
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 Piece pc
- Supply Capability:
- 3000 Pieces per Day pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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