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Intelligent outdoor street lighting

Traditionally street lights were simple timer based solutions, but to further increase efficiency and reduce costs intelligent outdoor street lighting has increasingly becoming the norm. This enables lights to be automatically switched on and off depending on various sensor data - ambient light conditions, approaching vehicles or pedestrians, etc. While high pressure sodium vapor (HPS) lamps can still be found in many industrial and agricultural applications, to further reduce costs street lamps are increasingly switching to LED lamps. In addition street lamps can include functionality such as public WIFI, video surveillance, alarm detection, and 5G base stations.

Block diagram

Highlighted components are Nexperia focus products

Design considerations

  • LED lamps tend to be more efficient that older HPS systems which need an electronic ballast or ignitor
  • As power requirements and restrictions increase, designers are looking to the benefits of e-mode GaN technology to meet higher output power requirements while maintaining a small efficient footprint
  • LFPAK series of low-voltage MOSFETs together with high-performance CFP Schottky Diodes help deliver high-efficiency DC/DC converter solutions
  • Nexperia's reliable clip-bonding CFP and LFPAK package technology ensure high robustness and outstanding thermal performance

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Why is in some cases the clamping voltage lower than the break down voltage?

Let Dr. Andreas Hardock, application Marketing Manager for ESD and EMC at Nexperia, show you why a low clamping voltage is key in protecting your circuitry.