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Circuit arrangement for supplying capacitive load i.e. piezoelectric actuator, in e.g. vaporizer or inhalator, has H-bridge circuit with half bridge formed from switching elements controllable by control electronic in operating condition
Circuit arrangement for supplying capacitive load i.e. piezoelectric actuator, in e.g. vaporizer or inhalator, has H-bridge circuit with half bridge formed from switching elements controllable by control electronic in operating condition
The arrangement (S) has H-bridge circuit with a half bridge formed of two switching elements (S1, S2) e.g. P and/or N-channel-MOSFET, and another half bridge formed of two capacitors (C1, C2) as a capacitive voltage divider. A component (L) e.g. coil, is arranged in bridge section, where electrical characteristic of the component is an inductance. The switching elements are controllable by a control electronic (A) in operating condition. A capacitive load (P) i.e. piezoelectric actuator, is to be coupled in the bridge section. The switching elements are selected from a group consisting of bipolar transistors such as pnp or npn transistor. An independent claim is also included for a method for supplying a capacitive load from a direct voltage source.
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