PLC-040S105D

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LED Drivers: PLC-040S105D Application Field and Working Principle

LED drivers, also referred to as LED power supplies, are used to regulate the power of the light-emitting diodes (LEDs). Power control is necessary for all LEDs in order to maintain consistent performance and reliability. Without this control, the LED’s light intensity may spike or fade due to heat or cold, or the LED may be damaged. A LED driver is an integrated circuit device, designed to power LED lights and keep them working at an optimal level. The PLC-040S105D is a high-powered driver specifically designed for running large LED installations.

PLC-040S105D Application Field

The PLC-040S105D is suitable for applications in industrial, commercial and residential illumination and display, emergency and security lighting, stadium LED billboards and more. It is designed to be used in applications that require the highest level of LED driver capability and efficiency.

This driver has a nominal input voltage of 48V with a range of 24-54V, and can support multiple LED loads with a wide range of current from 0.4 to 12A. Its output frequency is 50kHz and its power factor correction (PFC) is around 0.96, making it suitable for multi-channel LED applications.

The PLC-040S105D driver is designed with a bridgeless topology with synchronous rectification, resulting in lower EMI and higher efficiency. It has an integrated over-temperature protection, short-circuit protection, over-current protection and under-voltage protection. The device can also run at low power levels, making it suitable for energy-saving applications.

PLC-040S105D Working Principle

The PLC-040S105D LED driver has two integrated circuits which work in tandem to control the output voltage and current of the LEDs. The first integrated circuit is the PFC controller, which senses the input voltage and provides power factor correction. The PFC controller then regulates the power factor and compensates for any changes in the input voltage.

The second integrated circuit is the Pulse Width Modulator (PWM). The PWM controller receives the order from the PFC controller and uses it to calculate the frequency, duty cycle, and output voltage of the LEDs. This is done by comparing the input voltage and current of the LEDs to a known reference voltage and current. If the reference voltage and current are higher than the input, the PWM controller increases the frequency and duty cycle of the output until the reference voltage and current are achieved. Likewise, if the reference voltage and current are lower than the input, the PWM controller decreases the frequency and duty cycle of the output until the reference voltage and current is achieved.

The PLC-040S105D is an efficient and powerful LED driver solution that can provide reliable power regulation for LED installations of any size. Its built-in protection features and highly efficient synchronous rectifier architecture make it suitable for a wide range of applications, while its low power level capability helps save energy and reduce costs.

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