AC/DC Led Driver CE RoHS 5V 50A 250 Watt
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 Piece pc
- Supply Capability:
- 20000 Pieces per Day pc/month
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Output Power | 201 - 300W |
Output Type | Single |
Input Voltage | 110 or 220VAC |
Output Voltage | 3~48V |
Output Frequency | 50/60Hz |
Output Current | 5~83.3A |
Certification | CE ROSH |
material | Aluminium |
Detailed Product Description
Good quality with good price
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: What is the working principle of the power switch?
- But we also note that 300V DC power added to the standby power switch and standby power switch transformer, the standby power switch is designed to self-excited oscillation mode, standby power switch immediately start working in the standby power switch transformer times Level output two sets of AC voltage, the rectifier filter, the output + 5VSB and +22 V voltage, +22 V voltage is designed for power supply internal control IC power supply. + 5VSB voltage for the standby voltage, the output to the motherboard. When the user presses the power button of the chassis, the motherboard sends a power-on signal to the power supply. At this time, the (green) color line is low, the IC's internal oscillation circuit starts immediately, generates the pulse signal, The signal is applied to the base of the main switch tube by pushing the transformer so that the main switch is operated in the high frequency switching state. The main switch transformer output voltage of each group, after rectification, filtering and regulation, get each group of DC voltage, the output to the computer host. But the CPU on the motherboard at this time has not yet started, must wait + 5V voltage from zero to 95%, IC detection +5 V rose to 4.75V, IC issued P.G signal, the CPU starts, the computer work properly. When the user shuts down, the green line is at a high level, the IC immediately stops oscillating, the main switch tube because there is no pulse signal and stop working. -12 to +3.3 of the voltage drop to zero. The power supply is in standby mode. Protection circuit principle brief: In the normal use of the process, when the IC detects the load is in: short circuit, overcurrent, overvoltage, undervoltage, overload and other state, IC internal signal, so that the internal oscillation stopped, the main switch tube because there is no pulse and stop working The So as to achieve the purpose of protecting the power supply.
- Q: What is the flashing time in the switching power supply?
- Of course, there is no set of blanking time IC can be an RC filter to take this spike, the effect is the same.
- Q: Power amplifier with a good power or good switching power supply?
- R-type transformer is best, ring type, switching power supply transient response is not enough, open-loop can be used, but the effect is poor. Now there are dedicated power amplifier switching power supply, the main features are: resonant switch circuit; (and the same effect as the transformer sine wave effect, very little interference, the car amplifier has been using resonant circuit). Open-loop output, not regulated output, no response time. Light weight and high efficiency. R-type transformer is a dry-type transformer products in a rookie. The core of the use of different width and width of the cold-rolled silicon steel strip made of high-quality round, and cross-section was round, no cutting can be wound. Therefore, the resulting transformer has no noise, small magnetic leakage, no-load current is small, iron loss is low and high efficiency; and because the coil is cylindrical, the length of the copper wire per lap is short, so the internal resistance is small and the copper consumption is low , The temperature rise is low, the overload fluctuation is small, the explosive force is better than the toroidal transformer; In addition, the primary and secondary coil adopts the skeleton made of flame retardant PBT engineering plastic, so that the electric resistance is high, the flame resistance is good 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: 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 oscillation frequency is generally tens of KHZ, is relatively low 5050 in terms of ordinary frequency. "High frequency" is the higher frequency, refers to the number of times per second oscillation to high-frequency switching power supply dedicated chip TL494, its reference oscillation frequency of 25KHZ, frequency than the traditional 50HZ power 500 times higher.
- Q: Is switching power and transformer the same thing?
- Switching power supply is used to control the switch through the circuit for high-speed pass and cut off. The conversion of direct current into high-frequency alternating current is provided to the transformer for voltage change to produce the required group or groups of voltages. The transformer is voltage-converted by magnetic coupling. The switching power supply is in a field and can not be used instead of the transformer. Output without transformer, rectifier, filter, regulator way pure.
- Q: 12V10A switching power supply in the layout of the line when the longest cloth?
- 12V10A switching power supply with 5 12V2A surveillance camera. General 2 * 1 power line transmission 300 meters is no problem.
- Q: Today encountered a switching power supply, independent of the 220v into, 12v out, after opening and ka3842 see the sixth foot of a resistor and a diode at the obvious phenomenon of burning, I measured with a multimeter has 300v, but a flash Flash After the resistance, the low pressure at a light is flash, no output,
- 3842 6 feet is the chip output pin, if burned there, it is likely that the chip and switch are broken But the power output there is voltage, although unstable, indicating that the chip and switch is still working. You can test the chip 7 feet voltage is stable, if the stability of the power supply is likely to have problems on the low side. 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. Indicator light: There is always a light on a key switch for a home lighting. This indicator light is extremely large, so that the circuit current is minimal, so that the voltage in the night with the electrical voltage can not reach the rated voltage can not be bright, under normal circumstances this indicator has a capacitor, because a small The indicator light can not accommodate the voltage of 220v.
- 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: What is switching converter and switching power supply?
- Switching converter is a core component of modern energy conversion technology. It is also a basic component of all kinds of switching power supply, inverter, UPS, photovoltaic power generation, wind power generation and LED lighting. It is widely used in electric power, communication, home appliances, railway transportation , Automotive electronics, industrial control, instrumentation, aviation, aerospace, navigation and other fields.
- Q: Switching power supply, constant current power supply, resistance to the power supply where the benefits?
- Roughly compare it Switching power supply, RC power supply ----- these two, the general switching power supply to do greater power; resistance capacity of the power is generally micro power Constant current power supply and the above species is not compared, the switching power supply can also be done
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
| 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
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| 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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AC/DC Led Driver CE RoHS 5V 50A 250 Watt
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 Piece pc
- Supply Capability:
- 20000 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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