Spin dryers are very common in every family. Banshen spin dryers, with high quality, good design and best service. Many products have been sold to over 30 countries. After many years of developing, banshen spin dryers are getting better and better.
Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received CE, CB, RoHS and CCC certifications.
As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching America, Asia, Europe, Africa, the Middle East and other countries and regions.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
Round Spin Dryer,Clothes Spin Dryer,Mini Clothes Dehydrator,Mini Transparent Spin Dryer Ningbo Banshen Electric Appliance Co., Ltd , https://www.banshendq.com
2012 is about to pass, this year is mixed for the LED industry. Although many countries including China have already banned the sale of incandescent lamps, the sales of LED lamps have not exploded as scheduled, but there have been many chain storms in which lamps and lanterns manufacturers have closed down. Of course, some manufacturers are smiling and earning a lot of money. Overall, this year's LED market is a normal year of adjustment. With the lowest retail price of LED bulbs replacing 40W incandescent lamps has reached 10 US dollars, for the LED lighting market in 2013, the industry is optimistic that the overall LED lighting market will go next year. Warm, so what the industry has to do now is to do a good job of technical reserves and program selection, only to be fully invested when the market breaks out. This article combines the latest release of Power Integrations to talk about the four trends of the 2013 LED lighting solutions.
Trend 1: The dimming technology is greatly upgraded and is expected to become a lighting highlight
In LED lighting applications, the challenges of dimming technology are very large. Because LED lighting uses current driving mode, and existing dimmers are mostly voltage dimming, the compatibility challenge is quite large, but this is It is also a weapon to distinguish the advantages and disadvantages of the program. In the conventional LED dimming scheme, common problems include a small dimming range, a sudden brightening in dimming, and flickering when the dimming is low, which seriously affects the user experience. However, some companies have introduced special solutions, and LED dimming is expected to be solved. Taking PI's newly released LYTSwitchIC as an example, the driver can easily reach the NEMA SSL6 standard even at low conduction angles and the startup speed is very fast, usually less than 500 milliseconds, even when the 10% light output is turned on. It is also very fast. In the actual solution, the bulb designed with the LYTSwitch IC can be turned on at almost the same dimming angle as when it was turned off, which virtually eliminates sudden brightening. In addition, the deadband in the TRIAC dimming is eliminated because the LYTSwitch controller ensures that the dimmer is dimmed as soon as it starts working. Figure 1 shows the dimming curve of the PILYTSwitch controller. 
Another challenge of dimming technology is compatibility. Now there is no solution that can achieve 100% compatible dimmers, so it can be very good to achieve 80% (or 90%) or more. Currently PI The company claims to be able to achieve this ratio. With the gradual popularization of LED lamps, the upgrade of dimming technology can bring more and better experiences to users, and it will become a new selling point. You can pay attention to this function when choosing a solution. In support of dimming mode, manufacturers generally support thyristor dimming and PWM dimming.
Trend 2: Single-stage circuit architecture gradually dominates
In the previous scheme, in order to obtain better dimming characteristics, many schemes adopt a two-stage architecture, that is, a "PFC (Power Factor Correction) + Isolated DC/DC Converter" architecture, which can effectively reduce the power supply pattern. wave. In the past, because some designers thought that the ripple of a single-stage PFC circuit was too large, and worried about the LED lifetime, luminous efficiency and color temperature, the two-stage circuit was used more, and now, with the introduction of a single-stage scheme with high switching frequency. The advantage of a single-stage circuit is very obvious, because in terms of efficiency, the two-stage circuit is difficult to fight against a single level. At present, single-stage solutions can achieve more than 92% efficiency, and dual-stage circuits usually have an efficiency of only about 85%.
Another advantage of a single-stage circuit is that the circuit is simple. Figure 2 shows the PI solution, which can achieve 92% efficiency. Therefore, the solution of adopting single-stage circuit in the future will occupy the mainstream. 
Unfinished:
For more information, please refer to the January issue of Gaogong LED 's " LED Good Products" magazine. 
[Source: Gaogong LED 's " LED Good Products" magazine January issue ]