Regulated energy supply for a rapidly cycling integrated circuit with reduced electromagnetic radiation

US8093759B2 · kind B2 · utility

Assignees

• Conti Temic microelectronic GmbH · DE
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Infineon Technologies AG · DE

Inventors

• Goeran Schubert · Nuremberg, DE
• Thomas Steinecke · Hofsingelding, DE
• Uwe Keller · Avon, FR
• Thomas Mager · Ludwigsburg, DE

Key dates

• Filing date: Aug 30, 2007
• Grant date: Jan 10, 2012
• Expiry date: Dec 12, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D10/00
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A device (12) supplies energy to a rapid cycling and/or rapidly cycled integrated circuit (13, 52) which includes a circuit load (17) and an internal capacity (15) connected parallel to the circuit load (17). The integrated circuit (13, 52) has a high cycle frequency (f1) especially at least in the MHz range. A supply unit (14) especially designed as a current source is directly connected to the internal capacity (15). The supply unit (14) has an internal resistance, the impedance level of which is so high at the cycle frequency (f1) that a current (ID2) supplying the circuit load (17) originates to a greater degree from the internal capacity (15) than from the supply unit (14). At least one auxiliary load, current sink or load controller is provided as an integral component of the integrated circuit and is connected to the circuit load to smooth load fluctuations.