A New Resistive Adaptive Gate-Driving Concept with Automated Identification of Operational Parameters

Konferenz: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
09.05.2023-11.05.2023 in Nürnberg, Germany

doi:10.30420/566091150

Tagungsband: PCIM Europe 2023

Seiten: 8Sprache: EnglischTyp: PDF

Autoren:
Swoboda, Philipp; Brodatzki, Matthias; Hiller, Marc (Karlsruhe Institute of Technology, Elektrotechnisches Institut, Germany)
Kolb, Johannes; Humbert, Andreas (Schaeffler Technologies AG & Co. KG, SHARE at KIT, Germany)

Inhalt:
This paper proposes a new adaptive gate-driving concept based on parallel-connected resistive driving stages, which allows the modification of the effective gate-resistance for every turn-on and turn-off event during operation. By selecting the appropriate gate-resistance, the switching behavior can be optimized individually for each specific operating point (Vsw, Isw, Tj). As a result, higher efficiency under partial load can be achieved. The selection of effective gate-resistance is based on the results of a here introduced automatic optimization method, which takes constraints such as dv/dt- and di/dt-limits into account. Subject of this paper is also the comparison of the new approach with the widely used single-stage resistive driver.