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这篇论文提出了一种单变压器多输出隔离DC-DC转换器，从12/24V输入生成+15V、-5V和+5V三个稳压输出。通过共享次级绕组和双倍整流器配置，仅用四个功率晶体管实现三路输出，并采用可重构两模式逆变器提高效率，峰值效率达68%，最大输出功率2.5W。
*Equally Credited Authors (ECAs) 1 Abstract This paper presents a single-transformer multi-output isolated DC-DC converter generating three regulated rails (+15V, −5V, and +5V) from wide 12/24V inputs. By sharing a common secondary winding in a dual-doubler rectifier configuration, the design achieves three outputs using only four power transistors. Additionally, a reconfigurable two-mode inverter ensures high efficiency across both input voltage conditions. The converter reaches a peak efficiency of 68% with maximum output power of 2.5W. SiC and IGBT devices in traction inverters and on-board chargers require isolated positive (VDD1) and negative (VEE) rails (e.g., +15V/−5V) for the isolated gate drivers, with VEE suppressing Miller-induced crosstalk to prevent spurious turn-on. In parallel, a low-voltage (LV) rail VDD2 (e.g., 5V) is needed to power monitoring, protection and communication
Qiao Huang*1, Dongfang Pan*1, Weiwei Xu2, Yongle Zhang1, Lin Cheng1,2
University of Science and Technology of China, Hefei, China, 2Hefei CLT Microelectronics, Hefei, China