In recent years, the application fields of high-brightness LEDs have been increasing, covering a wide range from backlights for mobile devices, medium and large-sized LCD backlights, automotive interior and exterior lighting, and general lighting. Common DC-DC LED lighting applications include landscape lighting, internal low-voltage road lighting, solar-powered lighting, automotive lighting, emergency vehicle lighting, marine applications, low-voltage halogen replacement, and aircraft interior lighting. This article will focus on how to choose the right ON Semiconductor energy-efficient driver solution for different DC-DC LED lighting applications.
Table 1: Common DC-DC LED Lighting Applications
LED DC-DC Switching Regulator Topology
According to the relationship between input voltage and output voltage, we can classify the topology of LED DC-DC switching regulator into the following types:
Buck: Suitable for applications where the minimum input voltage is always higher than the maximum voltage of the LED string under all operating conditions. For example, use this topology when driving a single 1 W LED with a 12 V supply.
Boost: Suitable for applications where the maximum input voltage is always below the minimum voltage of the LED string under all operating conditions. For example, use this topology when driving 6 LEDs with a 5 V supply.
Buck-Boost, or Single-Ended Primary Inductor Converter (SEPIC): Suitable for applications where the input voltage overlaps the output voltage. For example, this topology can be used when driving 4 LEDs with a 12 V car battery.
Different topologies are suitable for different LED driver solutions. As the premier supplier of high-performance silicon solutions for energy-efficient electronic products, ON Semiconductor offers a broad range of energy-efficient drive solutions for a wide range of LED lighting applications, using its expertise and expertise in power management. Includes a variety of energy efficient DC-DC LED lighting solutions.
HDMI Cable
HDMI stands for High Definition Multimedia Interface and is the most frequently used HD signal for transferring both high definition audio and video over a single cable.It is used both in the commercial AV sector and is the most used cable in homes connecting devices such as digital TV, DVD player, BluRay player, Xbox, Playstation and AppleTV with the television.There are many types of HDMI cable:USB to HDMI,Micro HDMI,VGA to HDMI cable,etc..
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