UCC28880EVM-615

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The UCC28880EVM-615 Evaluation Board is an embedded evaluation board designated for DC/DC & AC/DC (Off-Line) SMPS circuits. It has been designed to assist user in quick and easy power evaluation of the UCC28880 PWM controller and other related products.

The UCC28880EVM-615 is composed of a main board and a daughter board. The main board uses integrated analogue and power components to implement general SMPS application circuit. It includes an opto-coupler isolated feedback circuit with short circuit protection, an input rectifiers bridge, turning-off and turning-on signals for synchronized regulations systems, and a range of protection features such as over current protection, overvoltage protection, and brown-out protection. The daughter board is designed to provide variable speed and supply additional functions.

The working principle of the UCC28880EVM-615 Evaluation Board is based on the main working principle of all SMPS circuits. The main board is designed to control the power conversion from the primary source to an isolated regulated output. When the input voltage exceeds the set regulated voltage threshold, the converter is switched on. The current from the primary source is then controlled, limited and rectified. The rectified voltage is then filtered to obtain a stable voltage. In addition, the UCC28880EVM-615 also utilizes the opto-coupler isolated feedback to monitor the output voltage. This ensures the stability of the regulated voltage, while not affecting the switching frequency.

Moreover, protection features are included in the UCC28880EVM-615 Evaluation Board to protect the components from over-current, over-voltage and brown-out conditions. The current detection, voltage regulation, and over-current protection functions are all performed by the UCC28880 PWM controller. The controller also supports variable speed and provides external control to ensure that the power supplied is regulated and controlled in accordance with the needs.

The UCC28880EVM-615 is an ideal device for DC/DC & AC/DC off-line SMPS evaluation and testing, providing users a means to quickly prototype a range of control systems, as well as to better understand the design features of UCC28880 controllers and related products.

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