LEG120W-171-C0700-D

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LED Drivers, more commonly referred to as LED power supplies, are essential components for LED lighting applications. They not only provide a constant and stable current, but also ensure the right power and quality of illumination for LED lighting system designs. LEG120W-171-C0700-D is an integrated LED driver with off-line isolated power factor correction that is highly efficient and reliable. It is suitable for a wide range of applications, from residential LED lighting to commercial installations.

The LEG120W-171-C0700-D draws a constant current, regardless of the input AC input or LED load. This ensures that the LED driver is able to provide a consistent and controllable output. Furthermore, with its off-line topology, the LEG120W-171-C0700-D offers protection against shorts and electrical surges, making it ideal for use in harsh environmental conditions.

The LEG120W-171-C0700-D can be used in a variety of LED lighting applications. For example, it can provide the necessary current and brightness for commercial signage and architectural lighting. It can also be used for LED interior lighting, such as in offices, stores, and homes. Furthermore, it can be used for outdoor lighting applications, including street lights, city lights, and security lighting.

Working Principle of the LEG120W-171-C0700-D: The LEG120W-171-C0700-D uses a pulse width modulation (PWM) technique to generate the constant current required for LED lighting. This technique uses pulses of power to reduce the average power delivered to the LED. The power pulses vary in width depending on the desired current level. For example, a longer pulse width increases the current for brighter lighting, while a shorter pulse width reduces the current for dimmer lighting.

The LEG120W-171-C0700-D is composed of an input rectifier, an active power factor circuit, a PFC controller, a PFC output rectifier, a voltage regulator control loop, and the PWM controller. The input rectifier is used to convert the input AC waveform into unregulated DC. This DC is then converted into a regulated power supply by the active power factor controller. The PFC output rectifier then rectifies the regulated power supply for the output current, which is then modulated by the PWM controller to provide the desired current level.

The LEG120W-171-C0700-D is highly efficient, with a typical efficiency between 85% to 95%. Its advanced thermal management system ensures that the device operates within an optimal temperature range regardless of ambient conditions. In addition, the input and output isolation provide excellent protection from electrical noise while meeting safety standards.

In summary, the LEG120W-171-C0700-D is a highly efficient and reliable LED driver for a wide range of LED applications. With its off-line topology and pulse width modulation technique, it is able to provide the necessary current and brightness for a variety of LED lighting applications. Furthermore, it offers excellent protection from electrical noise and harsh environmental conditions, making it an ideal choice for residential, commercial, and outdoor LED lighting applications.

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