Gain Adjustment Control for an Active EMI Filter
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:10.30420/566091335
Tagungsband: PCIM Europe 2023
Seiten: 7Sprache: EnglischTyp: PDF
Autoren:
Haensel, Stefan (Siemens AG, Germany)
Frei, Stephan (Technische Universität Dortmund, Germany)
Inhalt:
In this paper several implementations of variable gain amplifiers are investigated, for achieving maximal performance for a feedforward active EMI filter (AEF). Due to the inaccuracy of variable gain or high frequency behavior, all the known implementations do not fulfill the requirements for AEF. Therefore, a new setup with a temperature dependent resistor is investigated. With this setup a high intersection loss of 28 dB at 382 kHz and 20 dB over a frequency range from 150 kHz until 500 kHz is achieved.