According to a recent global TV shipment survey report by market research firm DisplaySearch, based on last year's global LED-backlit LCD TV shipments of 3.6 million units, this year, with the continued decline in LED backlight module prices, LED-backlit LCD TVs Shipments are expected to reach 35 million units, accounting for 20% of the world's 180 million LCD TVs. Many experts in the industry generally believe that with the gradual reduction of LED costs, LED TVs will enter a fast-growing channel. Not long ago, Sun Weizhong, executive vice president of Skyworth China Marketing Center, revealed that LED-backlit LCD TVs have obvious advantages in ultra-thin, energy-saving and full HD technologies. The price/performance ratio has far exceeded CCFL LCD TVs, and the price gap between the two will be Gradually shrinking, this is the main reason for Skyworth to quickly promote the popularity of LED backlight LCD. As one of the leaders in the LED field, Skyworth took the lead in laying out the LED LCD industry chain many years ago. First of all, it has established a cooperative relationship with upstream LCD screen manufacturers LGD and Chi Mei to ensure a smooth supply chain. Secondly, the liquid crystal business unit was established to invest heavily in liquid crystal modules, backlights, polarizers, ICs and other chains. Finally, it became a liquid crystal. The main supplier of the module. As a Skyworth Group that is involved in the early manufacture of LED TVs, Skyworth and Japanese and Korean companies are on the same starting line in terms of backlight LED modules. In addition to Skyworth, Konka, TCL, Hisense and other color TV manufacturers have also increased their investment in LED backlighting. It is understood that Konka established a wholly-owned subsidiary as a pathfinder to enter the LED industry as early as 2001. According to Tang Hongmin, deputy general manager of Konka Research Institute, in order to build a complete industrial chain, especially to accelerate the pace of LED upstream attacks, and to prepare related technologies, a postdoctoral workstation and two technical R&D teams specializing in LED technology research have been at Konka Research Institute. Built. The design and production line of LED backlights have also been laid in Kunshan. In addition, Hisense also established one of the earliest manufacturers of LED backlight LCD module production lines in China, and found the market trend and invested in research and development earlier than other industries. The successful experience on LED panels can even be traced back to the keen opportunities in the tablet industry around 2005. In December 2009, the International Electrotechnical Commission also determined that Dr. Liu Weidong from Hisense led the drafting of the international standard for LED LCD backlighting. At the same time, Dr. Liu Weidong will also lead the drafting of the general standard for backlight display with foreign experts. This series of international standards is formulated by Chinese companies and is the first in the global flat panel display field. From the perspective of the company, each brand continues to improve the product line layout. The LED backlight LCD TV products of the TOP10 color TV brand have reached 17 main sales series (excluding single product series), and have formed full-size coverage. From the market point of view, with the LED backlight LCD TV gradually scaled up, and the cost has also decreased, so the terminal price has gradually achieved the level of civilians, compared with the price of ordinary CCFL products, the price rate is only 1.5 ~ 1.8; It can be seen that LED-backlit LCD TV has become the mainstream product of color TV. From this we can see that LED replacement of CCFL backlight is an inevitable trend. And with the general downward revision of cost prices, the growth of LED TV will also accelerate. The main function of the PWM Solar Controller is to manage the charging and discharging process between solar panels and batteries in solar power generation systems. It is a traditional charge controller that controls the charging voltage and current through pulse width modulation technology to maintain the charging state of the battery and protect the battery. solar panel pwm controller, 12v pwm solar charge controller, pwm solar charge controller, best pwm solar charge controller, pwm solar charge controller for lithium Ningbo Autrends International Trade Co., Ltd. , https://www.aitsolarpanels.com
Main effect:
Charging control: PWM Solar Controller controls the charging voltage and current through pulse width modulation technology to ensure that the battery is charged at an appropriate voltage and current to prolong the service life of the battery.
Overcharge protection: The PWM Solar Controller can monitor the charging status of the battery, and when the battery is fully charged, it will automatically stop charging to avoid battery damage caused by overcharging.
Over-discharge protection: PWM Solar Controller can monitor the discharge state of the battery. When the battery power is lower than a certain level, it will automatically stop discharging to avoid battery damage caused by over-discharge.
Differences from other charge controllers:
Modulation technology: PWM Solar Controller uses pulse width modulation technology to control the charging and discharging voltage and current to maintain the charging state of the battery. In contrast, MPPT Solar Controller uses maximum power point tracking technology to adjust the output voltage and current of solar panels in real-time to achieve maximum power output.
Energy conversion efficiency: Compared with the MPPT Solar Controller, the energy conversion efficiency of the PWM Solar Controller is lower. Because the pulse width modulation technology cannot adjust the operating point of the Solar Panel in real-time, the output power of the solar panel may not be maximized.
Application Scenario: PWM Solar Controller is a traditional charge controller suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller is suitable for larger-scale, high-power solar power generation systems to improve energy utilization efficiency.
Overall, the main role of the PWM Solar Controller is to manage the charging and discharging process in the solar power generation system and protect the battery from damage. Compared with MPPT Solar Controller, it uses traditional pulse width modulation technology, and the energy conversion efficiency is lower. Suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller uses maximum power point tracking technology, which can improve the energy utilization efficiency of solar panels, and is suitable for larger-scale, high-power solar power generation systems.