DK2540-7R

DC-DC converters serve as the primary power source for many electronic systems, providing energy efficiency, flexibility, and reliability. The DK2540-7R is a high performance DC-DC converter designed for reliable and efficient operation in demanding industrial applications. This article will discuss the application field and working principle of the DK2540-7R.

Application Field

The DK2540-7R is a high frequency, line frequency switched DC-DC converter providing a range of features and capabilities to suit a variety of industrial environments. It is suitable for applications requiring high efficiency, precise voltage regulation, and low noise operation. In addition, the DK2540-7R has a wide input voltage range, providing a robust power solution for a variety ofDC input voltages. These features make the DK2540-7R ideal for applications such as LED lighting systems, industrial automation systems, and robotics.

Working Principle

The DK2540-7R is a switched DC-DC converter which uses pulse width modulation (PWM) to regulate the output voltage. The voltage is controlled by changing the duty cycle of the switching signals, which are generated by an internal oscillator. The PWM signal is used to control two power MOSFETs in an H-bridge configuration, which in turn switches the DC input into an AC voltage. The AC voltage is then rectified to a DC output voltage. The PWM signal also controls an additional set of two MOSFETs in parallel with the power MOSFETs, which reduce the power dissipation of the switching transistors.

The output voltage is regulated by two integrated feedback loops. The first is a voltage feedback loop which compares the output voltage to an internal reference voltage. The difference between the two voltages is used to adjust the duty cycle of the PWM signal, which in turn adjusts the output voltage. The second feedback loop controls the current limit, which in turn limits the power dissipation of the converter. If the current exceeds a certain limit, the duty cycle of the PWM signal is reduced to reduce the power dissipation.

The DK2540-7R also includes several additional features to ensure reliable and efficient operation. It has an integrated soft start circuit to prevent inrush current, as well as an optional over-voltage protection circuit. It also offers the ability to monitor the output and input voltage, as well as the internal temperature. These features makes the DK2540-7R an excellent choice for demanding applications in which high efficiency, reliable operation, and precise voltage regulation are required.