LPF-40-20

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LED drivers, as a component of a lighting system, are used to control the luminosity of the LEDs. This is achieved by regulating the supply current to a constant level, irrespective of the supply voltage or surrounding temperature. In this article, we will take a look at the application field and working principle of the LPF-40-20 LED driver, a commonly used type of LED driver.

Application Field of LPF-40-20

The LPF-40-20 LED driver is designed to work with LED lighting products requiring a power of 25-40 watts and a voltage of 10-20 volts. It is suitable for a wide range of applications, including, but not limited to outdoor decorative lighting products, advertisement lamp boxes, and ceiling lights. The flexibility of its application is based on its constant supply current, which can be adjusted as needed.

Working Principle of LPF-40-20

The working principle of the LPF-40-20 LED driver is based on the Pulse Width Modulation (PWM) technology, which is an efficient way to control the voltage and the output current. It converts the input DC voltage into multiple pulses of current. The width of the pulse is controlled electronically by adjusting the duty cycle of the output. The average current is proportional to the duty cycle and the output voltage of the driver. The use of PWM technology allows the LPF-40-20 driver to provide a wide range of output voltages from 10 to 20 volts and provide a high Power Factor (PF) of over 0.96.

Summary

The LPF-40-20 is a widely used type of LED driver, which is suitable for a variety of LED lighting products requiring a power of 25-40 watts and a voltage of 10-20 volts. Its working principle is based on the Pulse Width Modulation (PWM) technology, which allows it to provide a wide range of output voltages and ensure a high Power Factor. Thanks to these features, the LPF-40-20 LED driver has become a preferred choice for many LED lighting product applications.

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