NCP1654PFCGEVB

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The NCP1654PFCGEVB evaluation board is designed to demonstrate the performance of the NCP1654 PFC controller IC in an offline AC/DC converter. This evaluation board features an NCP1654 IC and includes a 400VAC/63.2A design capable of delivering up to 876 watts of power. The board also incorporates an auxiliary winding so that different voltage levels can be achieved with the same transformer design. Additionally, the board includes a step-down MOSFET driver for the primary side switch which is controlled through the PFC controller.

The NCP1654 IC is a single IC PFC pre-regulator solution. This power factor correction controller is capable of achieving high power factor operation with low input current harmonics in SMPS applications. Specifically, this IC is designed for offline AC/DC flyback converters. The IC features an integrated proprietary control algorithm, low start-up current, soft-start capabilities, and a peak-current mode control for maximum power factor, along with support for all the necessary protections and diagnostics.

The IC is ideal for a variety of applications including lighting, appliances, fans, medical, gaming, server, telecom, and industrial usage. This IC is designed for offline AC/DC flyback converters and is suitable for a wide range of power levels – from less than 15 W up to several kilowatts. The IC is typically used in situations where a power-backup facility is required, such as in telecom and industrial applications.

The NCP1654PFCGEVB evaluation board works on the principle of input power factor correction. The AC voltage source is rectified by a diode bridge and filtered by an LC filter before being fed into the flyback converter. The NCP1654 IC provides peak current mode control, soft start, and adjustable overload protection for the system. The outputs of the IC feed the drive circuit for the internal MOSFET switch. The controller detects the peak current of the flyback converter and adjusts the switch duty cycle accordingly.

The evaluation board comes with various instruments and components for testing, including a voltage source, sense resistors, a test point board, a peak current sense circuit, and a voltage current rating board. The NCP1654IC also includes a start-up detect output that can be used to make sure that the soft-start function starts correctly during each power-up cycle. The features of this IC allow the system to achieve high power factor operation with low input current THD, making it suitable for a variety of applications.

The NCP1654PFCGEVB evaluation board is a great choice for any application which requires PFC or offline operation. This evaluation board makes it easy to assess the performance of the NCP1654 PFC controller IC. The board is designed to give a full evaluation of the IC’s features and allows users to quickly validate the performance in their applications.

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