Design of bootstrap integrated synchronous rectifier

Abstract

Based on the research of the development of synchronous rectification technology, this paper proposes a circuit structure of bootstrap synchronous rectifier chip. Firstly, through the research of synchronous rectification technology, the architecture of synchronous rectification chip is determined. After the system design is completed, the internal units of the chip are designed in blocks under the 0.35 μm BCD process, and the specific circuit design is completed. Each unit has been verified by HSPICE simulation and has reached the specified index. The system constructed by this has also been verified by simulation, and the simulation results are consistent with the expected results, indicating that the main design functions of the circuit have been realized.