PHILPS Toshiba NVC LED lamp dismantling
Core tips: customers have purchased a number of LED lamps and lanterns, different brands of different manufacturers, once I also think that as long as the large brand of LED lamps and lanterns, relatively high price of products, the quality should be good. Let's start with a familiar foreign brand.
The popularity of LED industry has been higher than before, but the quality of LED power is uneven. Even though your engineers are in this industry, if you want to go to the market to buy one or a batch of LED lighting fixtures, you will also appear to be ineffective. In the ornate appearance of the LED lighting in the market, there is no way to see what it is to use. At the present time, there will be a skeptical attitude. The relevant laws and regulations of LED power supply are still not sound, the plan of Shanzhai is emerging in endlessly, perhaps in the eyes of many people, that the Shanzhai project chip can be hated. But to elaborate, from the LED lighting market, if there is no Shanzhai chip, the popularity of LED will not be so fast. From the view of LED power technology, the project of Shanzhai chip is also enough to make LED stable work, but LED is just a constant flow control. There is no difficulty in the control technology itself. Of course, the cottage chips also impact the entire LED industry at the same time. Is copycat chip the leading cause of such a mess in the LED industry?
Also once purchased a number of LED lamps and lanterns, different brands of different manufacturers, once I also think that as long as the large brand of LED lamps and lanterns, relatively high price of products, the quality should be good. Let's start with a familiar foreign brand.
The engineers who believe in this post are no stranger to it.
As we all know, LED energy saving has proved that legend is true after one month's use.
It only took a month to work at home. No electricity, enough energy.
See what is the case below:
The resistance capacity and depressurization, from the circuit principle, the resistance capacity of the power supply reliability is relatively high, because the component is generally not easy to damage, but why is this bad?
But the design of the next lamp is quite good, so it can be seen that the LED driver is becoming more and more abnormal now. It is behind itself or technology is too developed.
The two day saw a LED drive, LED lamp and drive on an aluminum substrate. Let's talk about driving. We need to exchange an insurance, a varistor and a rectifier bridge.
Two IC (IC do not know what) no resistance capacitance direct drive LED lamp 30W.
For everyone to see a Toshiba 24W LED downlight internal map. The price of this lamp is more than 800
This is. It's resistance volume again!!!!!! for this reason, I also sent to the rye factory, and found that the official toll free service phone number of Lei is empty. The last direct call to Huizhou original factory telephone, N transfer to the Rex Chongqing original factory to do a fake, the phone, mail, after the reply is "unsure" on the contrary, I also disassembled several domestic name of the brand LED lamps and lanterns, although most of them are domestic Shanzhai chips, but also have domestic more well-known brands of chips are also not lack of a country TI and PI brand chips. As the saying goes "a mouse droppings, bad gruel". In this way, the "rat feces" is not the copycat business that people imagine, and the big business people have always believed in. I don't know if engineers in the LED industry will feel the same way.