Florian Meßner, Rudolf Scheidl,
"Development of a Dual Supply H-Bridge Amplifier for High Speed Actuation of Digital Hydraulic Switching Valves"
, in International Journal of Fluid Power, Vol. 2019: Vol 20 Iss 1, Seite(n) 125-150, 5-2019
Development of a Dual Supply H-Bridge Amplifier for High Speed Actuation of Digital Hydraulic Switching Valves
Sprache des Titels:
For many digital hydraulic systems, fast and precise valve actuation is a key to improve efficiency and performance. Such an actuation may be achieved by optimizing the valve design from a mechanical and hydraulically point of view. But additionally, power electronics for valve actuation has to be given also high attention since it can have significant influence on valve dynamics, particularly in case of high-speed actuation with switching times in the range of 1 ms or less. Such actuation poses requirements that are not met by standard power electronics. These requirements are analysed in this paper and a proper schematic for the power electronics is derived. Measurements with a corresponding prototype prove that a fast, precise and very repeatable valve actuation can be achieved if the power electronics is conceived according to the characteristics of high speed valves.
Sprache der Kurzfassung:
International Journal of Fluid Power
2019: Vol 20 Iss 1
Anzahl der Seiten:
Aufsatz / Paper in nicht-referierter Fachzeitschrift