Patent ID: 7068486
Filing Date: 2006-06-27
Classification: H03K

Abstract:
1. A half-bridge circuit, comprising: a first semiconductor switch having a first control connection and a first load path; a second semiconductor switch having a second control connection and a second load path connected in series with said first load path; an output terminal disposed between said first and second load paths; an input terminal for receiving an input signal; at least one drive circuit coupled to said input terminal and having an output connected to said first control connection of said first semiconductor switch and outputting a drive signal at said output, said drive circuit receiving a signal dependent on the input signal and an enable signal dependent on a current from or to said second control connection of said second semiconductor switch, the drive signal being dependent on the input signal and on the current from or to said second control connection of said second semiconductor switch; and an enable circuit generating the enable signal and having a current measurement configuration connected in a current path to said second control connection of said second semiconductor switch and providing a current measurement signal on which the enable signal is dependent.