EM2120H01QI

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DC-DC converters are devices that are used to transfer electrical power from one form to another. The EM2120H01QI is one such device that is well suited for this job. This article will discuss the applications and working principles of the EM2120H01QI.

Application

The EM2120H01QI is a high-efficiency, low-cost, single output DC-DC converter. It offers a wide range of features and is suitable for a variety of applications, including automotive, telecommunications, consumer electronics, high-end computing, lighting, and power conversion. It has a wide input voltage range of 4.75V to 28V, making it an ideal choice for applications requiring higher input voltage range.

The EM2120H01QI also supports digital control and offers a wide range of output current and voltage, from 0.5V to 28V and up to 20A. This makes it suitable for many applications requiring high power and high efficiency. Its low profile package and integrated features such as soft start, overvoltage protection, and remote sensing also make it suitable for high-end applications.

The EM2120H01QI is designed to provide high efficiency and short circuit protection with a minimum external component count. It is also designed to provide power factor correction, enabling it to meet stringent international power efficiency regulations.

Working Principle

In the simplest terms, the EM2120H01QI is an on-off type DC–DC converter. This means that it is able to convert an AC voltage to a DC voltage by switching it off and on repeatedly. It achieves this by using an inductor as a filter to store the energy from the AC source and then releasing it to the output filter. The inductor is then switched off and on rapidly to allow for the required output voltage.

The EM2120H01QI uses a pulse width modulation (PWM) to control the switching of the inductor. This allows for the output voltage to be precisely controlled, helping to reduce components and costs and helping to increase efficiency. The EM2120H01QI also supports digital control, allowing for the output voltage to be controlled via a serial communication interface.

In summary, the EM2120H01QI is a high-efficiency, low-cost, single output DC-DC converter suitable for a wide range of applications. It supports a wide input voltage range of 4.75V to 28V and digital control, offering a wide range of output current and voltage. It works by using an inductor to store and release energy from an AC source and then uses PWM to control the switching of the inductor. This makes it suitable for many applications requiring high power and high efficiency.

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