KLASSE-E-VERSTAERKER.

摘要

The switching device uses a semiconductor switch operated periodically. The switch (1) exhibits a parasitic capacitance (5) and has a voltage limiting element (20,21) connected in parallel across its main current path. The voltage limiting element (20,21) exhibits an inductive input impedance at the switching frequency of the switch (1). Pref. the voltage limiting element (20,21) comprises a series resonance circuit with the inductance (20) provided by a line section. The semiconductor switch (1) pref. comprises a bipolar npn transistor.