STEVAL-ISA172V1

Series:	--
Part Status:	Obsolete
Main Purpose:	AC/DC, Primary and Secondary Side with PFC
Outputs and Type:	1, Non-Isolated
Power - Output:	2kW
Voltage - Output:	48V or 52V
Current - Output:	42A
Voltage - Input:	90 ~ 264 VAC
Regulator Topology:	Flyback
Frequency - Switching:	100kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	STM32F334C8, VIPer27

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Introduction

The STEVAL-ISA172V1 evaluation board contains a voltage regulator IC, a power factor controller (PFC), and an active power factor correction (PFC) controller to test the reliability of power systems for a wide range of applications. This evaluation board provides a simplified testing system for voltage regulation, power factor correction, and improved energy efficiency in DC/DC and AC/DC (off-line) switch-mode power supplies applications.

Applications

The STEVAL-ISA172V1 evaluation board can be used in a wide variety of applications that require high efficiency and reliable power supply systems, such as medical devices, industrial power supplies, consumer electronics, lighting, and other electronic equipment. The board can also be used as a reference design for the development of other power supplies.

Features

The STEVAL-ISA172V1 evaluation board has several important features that make it suitable for a variety of applications. The board provides a single phase PFC controller with an integrated voltage regulator IC, which enables the board to operate in a wide frequency range, from 110V to 250V. The board also includes a control algorithm that provides high power factor performance while also maximizing the efficiency of the power supply system. The board also features a range of protections, including over-voltage, over-current, and over-temperature protections.

Design

The STEVAL-ISA172V1 evaluation board is a combination of a voltage regulator, a power factor correction controller, and an input voltage sense divider, which provides the necessary signal for the voltage regulator. The board includes a non-isolation topology with digital PFC controller, which includes a single pulse-width modulation (PWM) controller. The PWM controller is driven by an internal clock generator to create accurate and reliable signals.

Working Principle

The working principle of the STEVAL-ISA172V1 board involves the PFC controller actively controlling the input voltage from a sinusoidal waveform to a flat topped waveform. This process is done by regulating the voltage through the PFC controller\'s input voltage sense divider. The PFC controller uses pulse width modulation to ensure that the output voltage of the board remains within the specified range. The PFC controller is then responsible for the overall energy efficiency of the system.The voltage regulator on the board is responsible for the accurate output voltage. The voltage regulator contains an adjustable comparator and a voltage reference divider, which are used to control the output voltage. The voltage regulator is also responsible for providing protection against over-voltage and over-current.

Conclusion

The STEVAL-ISA172V1 evaluation board is a robust, reliable, and efficient platform for testing and prototyping a wide variety of applications that require high voltage regulation and power factor correction. The board features a single phase PFC controller, adjustable voltage regulator, and a range of protection features, making it suitable for a variety of applications. The efficiency and reliability of the board make it an ideal choice for developing DC/DC and AC/DC (off-line) switch-mode power supplies.

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