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: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.
- 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.
- How do not provide transformer parameters? 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. I am an electronic design engineer, is developing a 12V20A repair charger, you can add to my discussion.
- Q:Who can help me choose a switch power supply model 220V AC / 10V DC
- 20VAC is the input voltage, 10Vdc is the output voltage ah! There is no model of the power is this specification, are designed according to the needs of this!
- Q:What is the difference between DC regulated switching power supply and linear power supply?
- Switching power supply: high efficiency, small size, inertial components (inductance and smooth capacitance, etc.); Traditional power supply in turn is it, but the traditional power of the biggest advantage is the small noise, harmonic interference is small.
- 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:"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?
- A: The switching power supply is small, light weight, high conversion efficiency.
- 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).
- In the 3V side plus a capacitor, positive and negative level can not take the wrong capacitor does not explode Oh, it is estimated that only to about 4.2V
- Q:How to choose the switching power supply frequency?
- Have a few points! The size of the input voltage, the choice of transformer magnetic material, the choice of the main switch tube, there is the overall volume requirements can also be said to want to achieve the power density! For example: low-voltage input, such as 6-160VDC, when the pressure on the tube is not high, the switching loss is not dominant, the frequency can be relatively high,
- Q:12V, 24V, what else? Is there 110V, 220V? Also divided into DC switching power supply and AC switching power supply?
- Is the output voltage or the input voltage? Input voltage is conventional voltage, 110V, 220V, 240V, 380V and other AC voltage ? The output voltage to see the need to see where to use Common are 5V, 12V, 15V, 24V, 48V, 240V and other DC voltage
- Q:I have a 12V3A switching power supply. From 0V to 12V, 2V3V can start. Want to carry out voltage regulation. How to do? If you use the potentiometer to connect the kind of potentiometer. I connected to the permanent magnet three brush motor is the car with the wiper motor, the motor high and low speed adjustment. Originally wiper motor there are two blocks. Richer speed adjustment.
- 12V3A switching power supply can not change the output voltage by external voltage regulator. Switching power supply PWM control technology using pulse width modulation technology to control the opening and closing of the switch, in order to achieve the stability of the output voltage. Switching power supply during operation, the output voltage changes through the optocoupler device to feedback the signal to the PWM controller, control switch drive signal pulse width, that is, duty cycle, adjust the power switch switch ratio, to achieve stable output voltage purposes. External voltage regulator potentiometer, can not be reliable access to the output signal acquisition and feedback adjustment function, it can not be achieved by an external regulator potentiometer to adjust the switching power supply output voltage.
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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