NCP1422GEVB

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The NCP1422GEVB evaluation board provides an excellent platform for design engineers and developers working in the DC/DC & AC/DC (Off-Line) SMPS market. It enables the rapid prototyping of new power supply designs and offers accurate measurements of its performance. This article will introduce the application field and working principles of the NCP1422GEVB evaluation board.

Description

The NCP1422GEVB evaluation board is designed to evaluate the performance of the NCP1422 active-clamp resonant converter integrated circuit. The evaluation board is populated with all the necessary components to achieve 800W of output power to demonstrate the performance of the integrated circuit. The design includes an internal Schottky rectifier, over-current protection, over-voltage protection, open-loop control, active-clamp synchronous rectification, and new burst-mode and light-load standby-mode operations.

Application Field

The NCP1422GEVB evaluation board is applicable for different types of AC/DC and DC/DC (off-line) switch mode power supplies (SMPS) ranging from 75W to 800W. This board can be used to evaluate the performance and features of the NCP1422 active-clamp resonant converter integrated circuit in a wide variety of applications, such as personal computers, set-top boxes, game consoles, cable modems, RAID storage systems, and high-end medical applications.

Working Principles

The NCP1422GEVB evaluation board utilizes the NCP1422 active-clamp resonant converter integrated circuit to create a switch mode power supply. In this particular design, the integrated circuit is configured as a two-switch forward converter. The design works by driving the primary winding of a power transformer with a variable frequency square wave, and rectifying and regulating the output voltage to create the required output power.

The NCP1422GEVB evaluation board utilizes the NCP1422 active-clamp resonant converter to control the rectifier peak current, which helps to reduce power loss and improve efficiency. The active-clamp rectifier provides synchronous rectification, which further improves efficiency.

In addition, the NCP1422GEVB evaluation board offers a variety of new features to improve design flexibility and ease-of-use. These features include over-current protection, over-voltage protection, open-loop control, low-power standby-mode operation, and burst-mode operation. The integrated circuit also has advanced temperature protection, fault detection, and soft-start functionality.

Summary

The NCP1422GEVB evaluation board is a valuable tool for design engineers and developers working in the DC/DC & AC/DC (Off-Line) SMPS market. It enables rapid prototyping and accurate measurement of performance. The evaluation board is suitable for use in a wide variety of applications, providing over-current protection, open-loop control, and advanced temperature protection. The design utilizes the NCP1422 active-clamp resonant converter integrated circuit to provide synchronous rectification, reducing power loss and improving efficiency.

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