Chen C.-JChiu P.-KChen Y.-MWang P.-YChang Y.-C.CHING-JAN CHEN2022-04-252022-04-25202215497747https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112661066&doi=10.1109%2fTCSII.2021.3098310&partnerID=40&md5=08cd96273cb85b39bdbd7f0f853e0409https://scholars.lib.ntu.edu.tw/handle/123456789/607040This brief proposes a driver integrated circuit (IC) for a GaN-based synchronous buck converter to minimized the dead-time loss of GaN devices and improve converter efficiency. The proposed adaptive control achieves minimized dead-time for any loading condition. A driver IC is fabricated in a 0.18 μm BCD process to verify the concept. The measurement result achieves only 0.7 ns and 0.8 ns dead-time at the minimum and maximum load condition, respectively. The efficiency improves 2.1% at 2 A full load compared to the fixed dead-time control counterpart. ? 2021 IEEE.Buck convertersControl systemsDelaysIntegrated circuitsLoadingSwitchesThreshold voltageEfficiencyGallium nitrideIII-V semiconductorsAdaptive ControlConverter efficiencyDead-time lossDriver integrated circuitsIntegrated driverLoading conditionMaximum loadSynchronous buck converterDC-DC converters[SDGs]SDG7journal article10.1109/TCSII.2021.30983102-s2.0-85112661066