A-B 1771-IXE

Description

A-B 1771-IXE

A-B 1771-IXE

In fact, within this power range, LED lighting will replace halogen lamps and compact fluorescent lamps (CFL). In addition, advanced technology must remove passive components such as electrolytic capacitors that are sensitive to temperature changes in order to overcome heat dissipation issues. However, currently most LED driver solutions stem from and are based on power supply topologies, so temperature range limitations should be considered, as general products are usually based on commercial standards, but lighting must ensure that they can adapt to harsh environments such as industrial environments.
Architecture Selection for LED Lighting Design
The choice of LED lighting system architecture depends on whether your design goals are low cost, high efficiency, or minimum PCB area. Generally speaking, LED lighting systems below 25W do not require power correction, so simpler topologies such as PSR or Buck topologies can be adopted. 25W-100W LED lighting applications require power correction, so single stage PFC, quasi resonant (QR) PWM, or flyback topology are generally used. LED lighting applications above 100W generally use LLC topologies with higher efficiency and dual stage PFC.
LED lighting solutions with power levels lower than 25W can use PSR or Buck topologies, as this power range is mainly aimed at small designs and emphasizes design simplicity. Medium power solutions (25W-100W) are suitable for single stage PFC, quasi resonant (QR) PWM, and flyback topologies, High power solutions (greater than 100W) are suitable for LLC, QR PWM, and flyback topology designs. From an efficiency perspective, LLC and QR perform better; while the PSR solution does not require secondary feedback, has a simple design, and is smaller in size than other solutions

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