Self biased gate controlled switch

US8373495B2 · kind B2 · utility

Assignee

• TEXAS INSTRUMENTS DEUTSCHLAND GMBH · DE

Inventors

• Carsten I. Stoerk · Freising, DE
• Joerg Kirchner · Enghausen, DE

Key dates

• Filing date: Apr 29, 2010
• Grant date: Feb 12, 2013
• Expiry date: Nov 27, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K19/0019
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

Conventional current sharing circuits, which can be used in drivers for liquid crystal displays (LCDs), for example, often use bipolar transistors. However, bipolar transistors are not available in many CMOS processes. Thus, a current sharing circuit is provided here that employs CMOS transistors. In particular, the circuit provided here uses a current mirror and pass circuit to assist in providing this current sharing function.