ONS321B12VGEVB

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Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS introduction a new product which known as ONS321B12VGEVB.

ONS321B12VGEVB is a high performance, high accuracy, low cost, easy-to-use evaluation board which used for the design and test of DC/DC and AC/DC (Off-line) SMPS (Switching Mode Power Supply). It combines the expertise of ON Semiconductor power conversion products with the convenience of an evaluation board. The board is designed with an integrated microcontroller (MCU) and a typical supply configuration that includes Active Clamp, Resonant Mode, LLC, Half Bridge, and Forward topologies.

ONS321B12VGEVB is especially used for power tests of AC/DC converter and DC/DC converter in various applications, such as industrial control systems, communication network systems, home audio amplifiers, automotive electronics, etc. It is suitable for the evaluation of a wide variety of high-performance, high-efficiency, high-adjustability power solutions.

The board features several key components:

• MCU: The board is equipped with a high performance PIC 16F887 (8 bit) microcontroller, which can provide high accuracy, good stability and convenience for programming.
• Power Stage: The power stage consists of multiple sockets (HX, SIC and CIC packs), three CIC (A, B and C), three SIC and two HX packs, and a single-stage coil. These high-performance, high efficiency components ensure excellent power conversion and provide excellent accuracy for power tests.
• Protection Mechanism: The board includes various protections, including an over-current protection, an over-voltage protection and an over-temperature protection.
• Heat Sink: The board is also equipped with a heat sink, which can dissipate heat from the board and ensure a good thermal performance.

The working principle of ONS321B12VGEVB is based on the basic buck-boost topology. This topology consists of a power switch, a rectifier (typically a Schottky diode, a linear, a synchronous rectifier or a switching topology) and an inductor. When a voltage applied to the board, the rectifier will convert the input voltage to DC, and it then will drive the power switch to switch on and off. The inductor will act as a filter to store the energy and supply voltage to the load when needed. By cycling the power switch, the voltage will be either boosted or bucked. This regulation can be done digitally by microcontroller.

In summary, ONS321B12VGEVB is a top-notch evaluation board for testing of AC/DC converter and DC/DC converter. It is equipped with advanced components and protection mechanism to ensure excellent stability and accuracy during tests. It is ideal for the evaluation of high-performance, high-efficiency, and high-adjustability power solutions for various industrial, communication, audio, and automotive applications.

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