Circuit assembly and method for controlling a piezoelectric transformer

US9705064B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Peter Kraxner · Graz, AT
• Markus Puff · Graz, AT

Key dates

• Filing date: Mar 19, 2014
• Grant date: Jul 11, 2017
• Expiry date: Apr 15, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/804

Abstract

A circuit assembly is used for controlling a piezoelectric transformer having an input capacitance in a first circuit branch. The circuit assembly also includes a second circuit branch for compensating for the input capacitance, preferably by means of a capacitive element, and a differential amplifier having two inputs. The first input is coupled to the first circuit branch and the second input is coupled to the second circuit branch.