XR77XXEVB-XCM-V80

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XR77XXEVB-XCM-V80 Evaluation Board

XR77XXEVB-XCM-V80 is an evaluation board designed to aid in the development of AC/DC and DC/DC switch mode power (SRP) applications. It is also a great starting point for evaluating XER Energy\'s XR77XX family of buck converters which offer up to 60V input range and up to 25V/20A output. It enables users to study the SRP application environment, minimize circuit design time, and quickly develop and demonstrate power supply designs.

Application Field

The evaluation board is suitable for a wide range of uses, including powering medical devices, automotive and industrial systems. It can also be used for LED lighting, communications and computer system power supply. This product demonstrates how easy it is to evaluate XER Energy\'s XR77XX family of buck converters and is designed specifically for these applications.

Working Principle

The evaluation board using the XR77XXEVB-XCM-V80 contains an input and output voltage regulator integrated circuit (VRIC) with an adjustable output voltage setting. The evaluation board also contains a microcontroller interface (I2C) to monitor and control the measurement and regulation of the evaluation board. A stepper motor is also integrated for controlling the output voltage according to the set values.

An integrated DC-DC controller is used to implement the control loop driving the synchronous XER single-phase buck converter, providing a closed loop speed response characteristics which maintains a constant output voltage in spite of the changing input and output voltage conditions.

The XR77XXEVB-XCM-V80 evaluation board also includes a number of safety features such as overtemperature protection and an LED indicator for over-current protection. OCP (over current protection) and OVP (over voltage protection) is also provided on the output. The OVP is triggered when the output voltage exceeds an adjustable limit. The OCP is triggered when the current through the output stage exceeds a certain limit.

In addition, an optional external power diode can be connected to the output of the circuit to provide an extra current limiting. This feature helps to further protect the user from excessive current flow, sudden voltage spikes, and over-temperature conditions.

In summary, the XR77XXEVB-XCM-V80 evaluation board is designed to provide quick and easy evaluation of the XER Energy’s XR77XX series of DC/DC and AC/DC switch mode power supplies. It is suitable for a wide range of applications, allowing for quick design of a power supply suitable for a number of applications.

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