In the past 10 years, LED chip technology has become increasingly developed. Some large semiconductor manufacturers are constantly pursuing LED chips with high luminous efficiency, and now they are able to produce small-volume and high-efficiency LED chips (lumen per watt). The good performance of these LEDs led to the development of luminaire design with sleek, slender and other aesthetically pleasing case shapes. However, LED driver manufacturers have made slow progress in developing high-power density power supplies. High-power density power supplies mean that they have a small volume and high energy (watt per cubic). Because the large volume power supply limits the creative ideal of luminaire designers, the need to reduce LED drivers is on the agenda.
Reducing the size of the LED driver will reduce the size of the LED-driven heat sink. This will inevitably cause the temperature-rise, thereby reducing the lifespan of the drive. Although the development of small-volume power supplies is full of challenges, MOOS’, which has been in the field of LED drivers for more than a decade, solved this issue.
Utilizing integrated electronic components
One of the key factors for size reduction is integration. On the one hand, MOONS’ LED drivers use the latest and most integrated ICs from very reputable IC manufacturers, albeit at a higher component cost. On the other hand, circuit design and topologies optimized are the most important issue for a power designer. Quasi-resonance circuits have advantages in saving energy and reducing thermal loss. Over the years, MOONS’ electrical engineers have mastered the art of balancing driver performance, reliability, and cost.
Minimizing mechanical size
In order to minimize mechanical size, every component in drivers needs to be deep consideration. The convert magnetics transformer is a giant compared to other electronics, so we optimize it from transformer manufactory according to the special shape. Besides, PCB layout is another key factory to shrink the mechanical size by utilizing double Layer PCB or even Four layer PCB. Minimizing noise paths and optimizing the flow of energy through the converter are vitally important to achieving high power density design.
Managing the performance and energy efficiency
In the final analysis, all methods to be done are to balancing the performance and energy efficiency. MOONS’ LED drivers cannot achieve significant reductions in size while maintaining high reliability and long life if energy efficiency is not achieved. Some thermal design techniques are used to keep temperature sensitive components as cool as possible. The MOONS’ drivers add a heat sink to conduct heat more evenly to the driver’s case shell that is wavy design, which allows for stable operation in free air convection.
Here are MOONS’ compact and powerful LED drivers.