DAK-73

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The DAK-73 evaluation board is an AC/DC off-line switch-mode power supply (SMPS) designed to provide an efficient and compact means of power conversion. It can be used for a wide variety of applications, ranging from laptop power supplies to general-purpose power supplies for industrial automation and test equipment.

The DAK-73 is a bridge-type converter, which means that it uses a bridge rectifier to convert an AC input voltage into a DC output voltage. The bridge rectifier is connected to an energy storage inductor, which provides power to the gate driver circuit. The gate driver then drives the power MOSFETs (Metal Oxide Semiconductor Field-Effect Transistors) to switch the current on and off, in order to provide a regulated voltage output.

The main advantage of this type of SMPS is its high efficiency. A DAK-73 evaluation board can reach efficiencies of up to 95%. This means that more of the energy that comes in is converted to useful output power, as opposed to being lost as heat. This makes the DAK-73 ideal for applications that require high efficiency.

In addition to its high efficiency, the DAK-73 also has a number of features that make it suitable for a wide variety of applications. It uses synchronous rectification, which increases its efficiency, and it also has an adjustable frequency range, which allows it to be used with different types of loads. The DAK-73 also has an adjustable output voltage range, which makes it suitable for applications with different voltage requirements.

In terms of its working principle, the DAK-73 is a two-stage regulator. In the first stage, the bridge rectifier converts AC input voltage into a DC voltage. This DC voltage is then regulated by the controller, using Pulse Width Modulation (PWM). The PWM signals control the switching of the power MOSFETs, which controls the output voltage. The controller also uses voltage feedback from the output of the DAK-73 to ensure that the output voltage remains constant, even in the presence of changing load currents.

Overall, the DAK-73 is a very effective and efficient off-line SMPS. It is suitable for a wide range of applications, including laptop power supplies, general-purpose power supplies for industrial automation and test equipment. It has a high efficiency and a wide range of features, which make it suitable for a variety of applications. Thanks to its two-stage working principle, it is also able to maintain a stable output voltage, even in the presence of changing load currents.

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