LED dimming power supply 3W 4W 5W light bulb lamp built-in power supply
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 pc
- Supply Capability:
- 100000 pc/month
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Product model: ZX-G0501-T
Input parameters: AC 50-60HZ 110/220V
Output parameters: 300mA 9-15DC (current can be adjusted according to customer requirements 0-400MA)
Output power: 4W 5W 3W
Dimming range: 0%-100% (applicable to the vast majority of dimming device)
Product size: long * wide * high =25*17*17mm
Product use: This product is suitable for E27 GU10 and other ball bulb lamp controlled silicon dimming lamps and lanterns can be equipped with the shell used in ceiling lamps, etc.
Product features:
1, small volume, light weight
2, constant current output
3, with isolated transformer, the human body is more secure
4, the use of import program (NXP2012) design, quality and stability, light adjustment effect of the whole process without flash
5, the life of more than 50000HR
6, with perfect over current, over voltage, short circuit, over temperature, over power protection function
7, with moisture, dust function
8, can be in -40 C, +65 C environment stable work
9, in accordance with the RoHS standard
- Q: 2014 low-frequency transformer is now the future is ok, the feeling is now doing more switching power supply, the last low-frequency transformer will be replaced
- 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: 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: 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: 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?
- DC "can have a different meaning, and if the voltage through the resistor does not produce a voltage drop through the resistor voltage drop is called" DC "voltage, then the DC refers to a constant voltage that does not change with time, or from the Fourier decomposition Is the DC component of the periodic signal (the DC component is equal to the mean in one cycle when the input is a periodic signal and the circuit has a periodic steady state). High frequency "DC voltage" is clearly not a constant voltage, it is estimated that the PWM thing, if it is a cycle input, then it will not only contain the DC component, but also contains the various sinusoidal AC component. Among them, the DC component in the inductor there is no pressure drop, and its components in the inductor voltage drop, so the coil inductance is certainly not short circuit. Of course, if the input signal DC component is too large, sinusoidal AC component is too small, then it may be too small inductance voltage, the entire coil current is too large. The above is the meaning of DC from the perspective of frequency domain analysis. Of course, if you avoid the concept of DC directly to the time domain analysis, that is, on the first floor zchy4610 analysis, high level charge, the current index rises, low level discharge, current index decreased, in any case, the peak current and average current are not The voltage is only added to the resistor so much.
- Q: Is switching power and transformer the same thing?
- This is not a matter of time, the switching power supply is to control the power supply, the transformer is to change the size of the voltage, the transformer in the case of power to control the voltage.
- Q: How to quickly analyze the switching power supply failure and timely repair
- 1 simple by PFC type to points: active PFC-type power supply and passive PFC-type power supply. 2 active PFC power supply maintenance focus is to seize: the power of the main control IC, such as the CM6800 and its series of types of IC pin function, almost all of the faults are around the master IC pin function to carry out the analysis of. 3 passive PFC is relatively simple, only need to understand such as AZ7500, LM494, and other IC pulse width modulation signal process and the pin function, and understand the working principle of the comparator, such as the common AS339, LM339 4 Moreover, maintenance analysis depends on the individual's understanding of the knowledge of electronic circuits, power principles of understanding, Specific analysis you can cite an example.
- Q: What is called switching power supply? Such as commonly used circuit
- Switching power supply is composed of triode circuit, the 220V mains (through the rectifier filter 315V DC) into 15 ~ 35KHz pulse AC, through the high-frequency transformer isolation into a low voltage. As the transistor is working in the switch state, so this electronic transformer is called "switching power supply", mainly used to distinguish him from the "power frequency transformer" is called. The current switching power supply is very widely used: color TV, DVD, notebook, computer, mobile phone charger, razor, etc. all use switching power supply.
- Q: Switching power supply output 12V 10A how to use the transformer how much ah
- Under normal circumstances the switching power supply itself is equivalent to the transformer, and no need to then transform the transformer. Switching power input 220v AC, output 12V. 10A is the switching power supply can output the maximum current, the use of generally less than 10A (this current is too large, I usually use 1A). Power P = 12 * I
- Q: Switching power input is marked with 220V AC, 36V output, but the actual input voltage is 238V, the output of the switching power supply affect it? Will it damage the switching power supply? Do not know the reason is not the voltage, power after a period of time (10 minutes), the switch power suddenly no output, and the display is not bright, switching power is not already broken? Guiqiu prawn to the doubts!
- Switching power supply without output, usually two problems, the first is the switching power supply is broken, the second is the switching power supply output overload, power overcurrent protection or overheating protection, the former need to repair, the latter to remove the load off 220V input Voltage after 5 minutes and then on the 220V to return to normal. The input voltage of 238V is also within the allowable range of the switching power supply, regardless of this.
- Q: Ming Wei switching power supply is why use?Ming Wei switch what to use, I see he is a circuit board, five wiring of the mouth, he used in the equipment what is the use? What is his general effect on the equipment?
- Regardless of the brand of switching power supply, the function is the same, to the equipment power supply, the general electrical equipment no matter what the external input is 110v or 2200v AC, the internal power are DC, usually with positive and negative 24v, 15v 5v And so on, switching power supply, is the exchange of alternating current into a stable DC for the use of equipment
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LED dimming power supply 3W 4W 5W light bulb lamp built-in power supply
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 pc
- Supply Capability:
- 100000 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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