Compared to switch power supply, LED power supply may touch you now more as compared to using the power switch of the electronic products, LED power supply and electronic products in terms of energy saving and environmental protection is more outstanding, so in advocating energy-saving and environment-friendly modern LED power supply become the people more easily contact power supply, street lamp, light source landscape, colorful mi red light, and the switching power supply using we often contact is nothing but TV bale, so the LED power supply, switching power supply misunderstanding is a normal phenomenon.
One, then the first LED power supply, LED power supply a, the working voltage is about 3.0V-3.6V, and some special LED power supply voltage lower, such as 2.0V, 2.5V, 2.7V and, also have is 1.2V, commonly used LED power supply voltage is 5V, 12V, 24V, special 15V, 18V also.
The working current of the LED power supply from a few milliamps to Ann, but most embedded products led working current less than 300mA, LED power supply at 30mA to 300mA model is relatively rich.
Second, say a switching power supply, switching power supplies are often seen working voltage is about 3.5V-48V. Some special switching power supply voltage is higher, even can reach 100V, where people don't long contact, the commonly used computer switching power supply is 12V voltage of about, LCD TV with 5V, 12V and 24V series.
Switching power supply operating current is generally in the range of 0-20A, most of the current switching power supply is more than 1A, the special case of the configuration of the switching power supply current output to less than 1A.
Three, said the next LED power supply and switching power of some of the difference. Due to the requirements of the work of LED products, LED power supply is usually used in constant current power supply mode, and LED power requirements of low temperature, low heat, long life. LED power of the volume is very small, complex working environment requires LED power supply water, discharge, anti-corrosion, LED power also need to be particularly strong anti high frequency interference.
Switching power supply with constant voltage power supply, with respect to the volume LED power and high efficiency compared to LED power not so precise, and requirements of switch power supply output accuracy also led power than worse, there is a switch power supply noise effect and anti-interference ability compared to LED power supply to a little less.
Power industry current according to the difference and relation between the LED power supply, switching power supply, special LED switching power supply was developed on the basis of the common electronic product design to some of the advantages of the integrated LED power supply, switching power supply, but also have some disadvantages of the two, mainly according to the electronic products and the specific use of the actual effect of make a concrete analysis of custom is good.