Driver circuit, method for operating and use of a current mirror of a driver circuit

US8154217B2 · kind B2 · utility

Assignee

• Atmel Corporation · US

Inventors

• Guenther Bergmann · Blaustein, DE
• Peter Kolb · Farmington Hills, US
• Holger Vogelmann · Waldenbuch, DE
• Michael Offenwanger · Burgau, DE

Key dates

• Filing date: Mar 13, 2009
• Grant date: Apr 10, 2012
• Expiry date: Jul 15, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F3/262
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A driver circuit, operating method, and use of a current mirror of a driver circuit is provided that includes at least one output transistor, a reference network with at least one reference transistor, a switching device, which is connected to the control input of the output transistor and to the control input of the reference transistor to form a switchable current mirror, a current source for providing a reference current for a reference current path, whereby the current source and the reference transistor are arranged in the reference current path, a load terminal, whereby the load terminal and the output transistor are arranged in a load current path, and at least one damping network, which is connected to or connectable to the reference current path. Wherein a connection of components of the at least one damping network and a connection of components of the reference network are substantially the same.