ADP2125B-1.26EVALZ

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The ADP2125B-1.26EVALZ is an evaluation board for DC/DC and AC/DC (Off-Line) SMPS. ADP2125B is a synchronous rectifier controller used to establish a faithful, low loss control of both forward and synchronous rectification. It is a kind of power converter that is used to maximize efficiency and reduce thermal losses. The board provides a dual output of regulated 12-14V@125A DC output with a single stage of regulation. The ADP2125B-1.26EVALZ basically works by allowing standard type SMPS converter topology to regulate the output voltage in a controlled manner. It is designed for off-line operations with a high efficient active-clamp and CCM boundary condition. It includes an on-board regulated power supply of ±15V, used to power the IC. This board has a fanless synchronous full-bridge topology optimized for single stage power conversion.

ADP2125B-1.26EVALZ provides high efficiency, low component count and a wide range input voltage of 90V-305V operation. It can supply an output of 375 W when the input voltage is 180 V. This board has a high power to weight ratio and low cost, which makes it ideal for applications such as transportation, medical instrumentation, consumer electronic, industrial, etc.

The board has an on-board power supply ready facility that requires no external components. It also has an internal switcher with internal bias for fan-less operation. The board works in closed loop mode and uses an adaptive oscillator to maintain the output voltage. The integration of the controller and power stage make it a complete solution for SMPS applications.

The purpose of this evaluation platform is to demonstrate the performance of the ADP2125B controller in various power stage topologies and provide opportunities for the user to experiment with the different operating modes. The output power of the system can be adjusted by varying the duty cycle of the drive which is controlled by the user via the control line. The user can also adjust the switching frequency of the controller by varying the hysteresis to obtain the desired harmonic and noise levels.

The ADP2125B-1.26EVALZ board provides a comprehensive set of features for various applications. It has a Linux-capable GUI software, a PC control interface, and an integrated Digital Signal Processor (DSP) that provides complete control of the system’s output power. Additionally, the board has wide range protection features such as over-current, over-voltage, undervoltage, and open circuit protection. This board also includes a temperature sensing module that automatically adjusts the system power according to the temperature.

The ADP2125B-1.26EVALZ evaluation board provides a reliable and cost-effective solution for SMPS applications. It has an integrated power stage and controller, which makes it an ideal platform for prototyping. With its various features and functionalities, it enables the user to quickly to test and develop their designs. With wide range input voltage and low power to weight ratio, it is a suitable solution for various applications.

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