Capacitor arrangement with voltage-dependent switchable capacitor units, level gauge and power supply unit with this capacitor arrangement and use of the power supply unit in a level gauge, a flowmeter or a point level sensor.

摘要

Capacitor arrangement comprising a capacitor unit K1, with a capacitor C1 and a control element Reg1 with a switch S1. In this case, the capacitor C1 and the switch S1 of the control element Reg1 are connected in series and to the capacitor unit K1 is an operating voltage U (B). Furthermore, the control element Reg1 is designed to close the switch S1 when the operating voltage U (B) is equal to or less than a maximum voltage Ulmax of the capacitor, and to open the switch when the operating voltage U (B) the maximum voltage Ulmax of the capacitor C1 exceeds. Furthermore, the capacitor arrangement has a capacitor C0, wherein the capacitor unit K1 is connected in parallel with the capacitor C0, so that the capacitor unit K1 and the capacitor C0 form a total capacitance C (total) of the capacitor arrangement.