connecting two totem pole outputs together

Importantly, the proposed single-stage SST not only holds the potential for high power density and high efficiency but also has full functionality, e.g., multiport dc loads integration, voltage regulation, and reactive power compensation, unlike the traditional single-stage matrix SST. The conduction loss saving is crucial, being the dominating loss mechanism in SSTs. Compared with the prior S4T, an effective change on the leakage inductance diode is made to reduce the number of the devices on the main power path by 20% for significant conduction loss saving and retain the same functionality of damping the resonance between the leakage and resonant capacitors and recycling trapped leakage energy. The S4T comprises two reverse-blocking current-source inverter (CSI) bridges, auxiliary branches for ZVS, and transformer magnetizing inductor as more » a reduced dc link with 60% ripple. The S4T has full-range zero-voltage switching (ZVS), electrolytic capacitor-less dc link, and controlled dv/dt, which reduces EMI.

This article proposes a new soft-switching solid-state transformer (S4T). The traditional SSTs are typically three-stage, i.e., hard-switching cascaded multilevel rectifiers and inverters with dual active bridge (DAB) converters, which leads to bulky passives, low efficiency, and high electromagnetic interference (EMI). Solid-state transformers (SSTs) are a promising solution photovoltaic (PV), wind, traction, data center, battery energy storage system (BESS), and fast charging electric vehicle (EV) applications. Publication Date: Research Org.: Delta Products Corporation, Research Triangle Park, NC (United States) Delta Products Corporation, Durham, NC (United States) Sponsoring Org.: USDOE Office of Energy Efficiency and Renewable Energy (EERE) Contributing Org.: Virginia Tech OSTI Identifier: 1644192 Alternate Identifier(s): OSTI ID: 1429282 OSTI ID: 1644191 Grant/Contract Number: EE0006834 Resource Type: Accepted Manuscript Journal Name: IEEE Translations on Industrial Electronics Additional Journal Information: Journal Volume: 64 Journal Issue: 11 Journal ID: ISSN 0278-0046 Publisher: IEEE Country of Publication: United States Language: English Subject: 54 ENVIRONMENTAL SCIENCES On-board charger (OBC) power factor correction (PFC) SiC totem pole widebandgap (WBG) zero-voltage switching (ZVS) 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION 42 = , (Virginia Tech), Blacksburg, VA (United States)

Connecting two totem pole outputs together