Siemens Aktiengesellschaft

Klaus Luther

Kurt Hoffmann

Oskar Kowarik

Johannes Stecker

An integrated buffer circuit includes a first series circuit connected between a first supply potential and a second supply potential (ground). The first series circuit has a voltage-controlled first constant current source, a first field effect transistor having a gate forming an input of the buffer circuit, a circuit node between the first current source and the first field effect transistor forming an output of the buffer circuit, and a first control input for controlling the first current source with a reference potential having a constant potential difference relative to the first supply potential. A second series circuit is connected between the first supply potential and the second supply potential. The second series circuit has a first resistor, a second constant current source furnishing a current being independent of the first supply potential, and a circuit node between the first resistor and the second current source, establishing the reference potential and being connected to the first control input of the first current source.

Growing community of inventors

Munich, Germany

Klaus Luther