The LED industry has made great progress. While the market size is growing, competition in LED power supplies is also intensifying, and price competition in the industry is extremely fierce. The LED price war exacerbates the problem of inventory surge. At present, most of the medium-power constant current drive power supplies have a single product corresponding to a single output current, and the current sampling resistor on the PCB needs to be adjusted to solve the problem. This results in the inability of power supply manufacturers to keep inventory, and the inability of lamp manufacturers and overseas customers to keep inventory of entire lamps. We can only compress the delivery cycle by air freight after receiving actual orders from customers to meet the actual power needs of end customers.
At the same time, with the popularity of LED lighting products in indoor applications, visual fatigue caused by stroboscopic light has attracted more and more people’s attention. Especially lamps used in classrooms, offices and other places are required to be flicker-free. There has been no suitable solution for the flicker-free problem in the medium power range of 40-80W. The traditional PFC-BUCK two-stage solution is too expensive and is not suitable for indoor medium power range. The single-pole + flicker elimination solution consumes power and the temperature is very high.
Juxin Deyuan’s dial-coded current and power regulation solution perfectly solves the inventory problem and flicker-free problem.
Features:
Input: 180-265Vac
Output power: 20W-80W; ultra-wide output voltage: 50-180V; output current 250mA-500mA, 4-segment dialing.
Performance: Active power factor correction, high PF value 0.98; low THD<10%; high efficiency 89%; bipolar flicker-free.
Protection: Iron shell protection
Certification in progress: ENEC, SAA, CCC
Application areas: LED linear lights, grille lights, tri-proof lights
This series of power supplies adopts PFC_DC-DC topology to achieve high efficiency, low THD and high PF value. It also achieves an extremely wide output voltage and current adjustment range, and maintains high PF and low THD even when the power decreases. Integrated control IC can also greatly simplify the circuit and reduce the number of components. The option of constant current without secondary current sampling feedback makes the system more compact and reliable.
As shown in the figure below, Juxin Deyuan 60W constant current dial-coded dimmable power supply adopts combined dial-on/off. The product current output on the product silk screen can be selected as 350/400/450/500mA four levels.
Jusinpower has been committed to the R&D and production of LED drive power supplies for 11 years. “Making power supplies with care” is our mission, to design and customize good power supplies for customers with peace of mind and peace of mind.
