LDH-45A-500

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LED Drivers are a specific type of power supply characterized by their ability to ensure a constant and controlled current within the LEDs. The LDH-45A-500 is a specific type of LED Driver, used within a variety of applications. This article shall provide a detailed look into its application field and working principle.

Application Field

The LDH-45A-500 LED Driver is mostly used in LED-based decorative and spot lighting fixtures, especially in cases when a wide range of input voltage is needed, along with high current drive capability. Examples of such applications include LED ceiling panels, LED downlights, and LED cabinet lights. It is also used in automotive lighting and emergency lighting.

The LDH-45A-500 LED Driver benefits from its high efficiency, flat output over the input voltage range, low stand-by power loss, and inrush current limit protection. All of these features make it suitable for virtually any application that requires reliable, efficient and controlled current operation.

Working Principle

The LDH-45A-500 consists of a high power switch, a driving circuit, an output transformer, an output rectifier, a filter capacitor and a control IC. The main components of the input side of the driver are the high-power switch, the input rectifier, the input filter capacitor and the control IC.

The switch closes when it receives a signal from the control IC, allowing current to flow through the input rectifier and filter capacitor, and said current is sent to the output transformer. This is where the output signal is generated, undergoing a boost or buck depending on the output voltage requirement. The signal is then sent to the output rectifier, where it is rectified, filtered and sent to the load.

The control IC ensures maximum efficiency and stringent output power accuracy, as well as a low stand-by power loss, by controlling the opening and closing times of the power switch. This helps reduce the amount of waste heat generated, whilst still being able to provide high levels of current output capability.

Conclusion

The LDH-45A-500 LED Driver is an excellent choice for applications that require a wide range of input voltage and high current drive capability, as its high efficiency, flat output, low stand-by power loss, and inrush current limit protection make it suitable for virtually any application. Moreover, its working principle of controlling the opening and closing times of the power switch helps reduce the amount of waste heat generated, while still providing high levels of current output capability.

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