Patent ID: 9112494
Filing Date: 2015-08-18
Classification: H03K

Abstract:
1. An electronic circuit comprising an electronic switch with a control terminal and a load path between a first and a second load terminal, and a drive circuit with an output terminal coupled to the control terminal of the electronic switch, the drive circuit comprising: a first input terminal and a second input terminal; a first drive unit coupled between the first input terminal and the output terminal and comprising a charge pump and drive unit; and a second drive unit coupled between the second input terminal and the output terminal and comprising a further electronic switch coupled between the output terminal and a terminal for a reference potential, wherein the first drive unit is configured to switch the electronic switch on and off responsive to a signal received at the first input terminal, wherein the second drive unit is configured to switch the electronic switch off at a faster rate than the first drive unit responsive to a signal received at the second input terminal, wherein the charge pump remains activated and provides a drive voltage that is sufficient to supply the second drive unit when the second drive unit is switching off the electronic switch, wherein the charge pump is configured to be deactivated dependent on one of the signal received at the first input terminal and the signal received at the second input terminal.