Yanqi Zheng, M. Ho, K. Leung, Jianping Guo, Biao Chen
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A digital-control sensorless current-mode boost converter with non-zero error bin compensation and seamless mode transition
A digital-control sensorless current-mode boost DC-DC converter is presented in this paper. By using the proposed sensorless current-mode control, the requirement for implementation of current sensor for conventional current-mode dc-dc converter is relaxed. Moreover, the converter can seamlessly switch between CCM and DCM operation as in conventional current-mode control. With this method, the non-limited-cycle for digital-control current-mode converter is realized. Lower resolution of DPWM can be used to avoid the appearance of limited cycle, regardless of loading condition.
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