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[Nanjing Post and Telecommunications School Competition] ir2104 step-down circuit

Overview

Use the IR2104 chip to build the BUCK circuit topology to achieve buck and BOOST circuit topology to achieve boost. Use MOS tubes to replace the diodes in the BUCK. Control the two MOS tubes through the drive signal of IR2104, which can improve the efficiency of the output voltage and can pass the PWM wave. Adjust the amplitude of the output voltage, feedback voltage FB=VOUT×R4÷(R4+R3). The buck module needs to carefully consider the withstand voltage value of the MOS tube. The withstand voltage value of a single MOS tube needs to be greater than the input voltage value. The chip supply voltage is 12V.
Team information: Shi Lei, Yang Shengdong, Chen Jingyang
Instructors: Zhang Sheng, Chen Jianfei
Award report: None

Design Files

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Update:2025-06-18 10:04:47

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