Keeping The Lights On: ESD And warm Protection For LED Lighting Systems
There are many factors which could affect solid state lighting in electronic design from stress issues, to packaging-related issues to component-related issues. Design engineers will need to pass these 4 elements in mind. You will find three key threats that affect the reliability of LED lighting systems in electronic designs:
- Electrostatic discharge (ESD) events, including lightning Transient overcurrent events and surges
- Current and voltage spikes during hot swapping Reverse voltage effects
- Overtemperature protection
For LED lighting systems for being reliable, all the components and subsystems should be protected effectively against these dangers, which have been encountered during assembly, maintenance and operation. High-performance ESD and overtemperature protection can safeguard against these dangers, becoming a longer lifetime, lower maintenance costs and increased longevity of the LED lighting system. Using high-quality protection ESD and overtemperature components provide effective and cost-efficient protection for LED arrays, their power supplies and control circuits.
LED system overview
An LED bulb – or over technically, a luminaire – is composed of three basic subsystems: an LED power supply, a power-input connection to the grid, as well as an LED engine. The LED engine is usually further converted into LED arrays, LED drivers and control units.
Over days gone by a number of years, smart LED luminaires have become popular resulting from features including push-button control and maintenance. As a result, a fourth subsystem – communication power supplies and interfaces – is likewise often utilized in the luminaires. This will give smart networked lighting systems to become deployed that boost efficiency superiority lighting, and enables facility managers be aware of status for each luminaire for maintenance.
As the LED lighting system technologies have matured, engineers realized they needed the right way to prevent ESD events and high energy surges from affecting the luminaire also to ensure system reliability. These surges can result in both immediate failures (often for a junction) along with an increased rate of degradation brought on by latent damage. Each of the four subsystems is often in contact with events that can cause this sort of damage. As engineers read the vitality of possible events, they might determine what suitable protection products are needed.