RSD-1224-R

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DC DC Converters

DC-DC converters are devices used to convert a direct current output voltage to another, usually different, direct current voltage. They are commonly used in a wide variety of applications and are designed to provide either stepping up or stepping down of the voltage. DC-DC converters come in a wide range of sizes, shapes, and capacities and can be used for a range of different applications.

RSD-1224-R Application field and Working Principle

The RSD-1224-R is a，HIgh-Efficiency Non-Isolated, Step-Down DC-DC converter module. It is designed for LED lighting system applications from a 12 to 24V DC input range. The RSD-1224-R converter features a PFC/forward type topology for high power factor performance, high conversion efficiency, very low ripple currents, and low output voltage ripple. The module also has a primary loop over-current protection, over-voltage protection and short circuit protection, as well as integrated thermal shutdown.

The input range of the module is 12-24VDC. With this range, the adjustable output voltage can reach 4.2-36VDC. The output voltage could be regulated and adjusted with the help of an external divider which is connected to a pin between the power pins. The output can be in constant voltage mode or in constant current mode. In the constant voltage mode, the output voltage is adjusted by the divider network and can be accurately regulated within +/- 5%. At the same time, the output current can reach 6A and the efficiency is up to 95%.

The RSD-1224-R module is recommended to be used for applications where the power consumption is between 0.5 and 6A. This module is also used in LED lighting applications, video and audio systems, motor control systems, battery charging systems, solar energy systems, and other applications. Its most important feature is its multiple protections, which provide a high degree of safety in normal operating conditions.

The working principle of the RSD-1224-R converter is fairly simple: it uses a step down topology to reduce the input voltage to the desired output voltage. The Step Down topology is a classification of power conversion where the output voltage is lower than the input voltage, resulting in a decrease in power level. The voltage is stepped down by a switching regulator or controlled oscillator which operates within a certain frequency range. When the switching regulator is on, the input voltage is transferred to the output voltage. During this process, a transformer or inductor is used to perform the conversion from AC to DC. The output voltage is then regulated by an external feedback circuit. During the off phase of the switching regulator, the output voltage is determined by the output capacitor found in the feedback circuit.

In summary, the RSD-1224-R is a high-efficiency, low-ripple, non-isolated DC-DC converter module designed for LED lighting systems applications from an 12-24V DC input range. It can provide output voltages from 4.2-36VDC and up to 6A of current. Its multiple safety protections make it an ideal module for application where safety is a priority.

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