19.6 A 68%-Peak-Efficiency Single-Transformer Multi-Output Isolated DC-DC Converter with a Regulated Negative Rail
Abstract
This paper presents a single-transformer multi-output isolated DC-DC converter generating three regulated rails$(+15 ~\mathrm{V},-5 ~\mathrm{V}$, and +5 V) from wide$12 / 24 ~\mathrm{V}$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.
Fields of Study & Subjects
Advanced DC-DC Converters
Wireless Power Transfer Systems
Multilevel Inverters and Converters
Publication details
- Journal / source
- Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
- Pages
- 330–332
- Publication date
- 15 February 2026
- Language
- EN