THN 20-2423WI

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A DC-DC converter, also referred to as a DC-DC regulator, is a type of electronic device that converts direct current (DC) voltage from one level to another. DC-DC converters are available in two types; those that use switching and linear regulators. THN 20-2423WI is one of the switching regulators and widely used in various industries such as medical, industrial and automotive applications. This article provides an overview of the THN 20-2423WI application fields and its working principle.

Application Fields of THN 20-2423WI DC-DC Converter

The THN 20-2423WI DC-DC converter is a low drop-out positive voltage converter module designed for a wide range of industrial, automotive and medical applications. It has wide input voltage range of 2.7V to 36V and generate output voltage from 2.7V to 24V. It’s also able to adjustable output voltage with maximal voltage conversion ratio of 4.1:1. Its power rating is up to 23 W, making it suitable for a variety of voltage conversion tasks.

Typical application fields for the THN 20-2423WI DC-DC converter include:

• General purpose on-board or off-board power supplies.
• Powering of Point-of-load (POL) systems.
• Back-up battery power supplies.
• Powering of portable medical devices.
• Powering Automotive Body Electronics such as HVAC, power mirrors, seatsheat lamps, etc.
• Powering Industrial control systems such as PLC’s and CNC machines.

Working Principle of THN 20-2423WI DC-DC Converter

The THN 20-2423WI DC-DC converter is a three-terminal switchmode voltage converter based on switching technology. This converter works on the principle of using an external field effect transistor (FET) to convert a DC input voltage into an AC indication through an inductor switching. The basic working principle of the THN 20-2423WI DC-DC converter is illustrated in the figure below.

When the switch(S) is turned on, the input voltage is applied to the primary winding of the transformer and the input current IIN flows through the transformer primary winding(L1). The current build up in the primary winding induces a voltage in the secondary winding, which is stepped up (or down) according to the turns ratio of the transformer. The secondary winding current IS is

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