Multi-phase Closed Loop LC Tank Circuits

Abstract

LC tank circuits can be coupled together to form closed loop oscillators. The interconnectivity of these LC tank circuits were performed by a physical connection such as a metal interconnect. The LC tank circuits may also comprise a plurality of inductors that are coupled together in parallel. These closed loop oscillators generate oscillations which have multi-phase components. Such circuits are useful for RF designs, clock generation for VLSI chips, adiabatic circuitry, analog circuitry, and high-speed digital circuitry.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is related to the co-filed U.S. applications entitled “MUTUAL INDUCTANCE IN TRANSFORMER BASED TANK CIRCUITRY”, “FABRICATION OF INDUCTORS IN TRANSFORMER BASED TANK CIRCUITRY”, and “FREQUENCY ADJUSTMENT TECHNIQUES IN COUPLED LC TANK circuits” filed on Jul. 19, 2005, which are invented by the same inventor as the present application and incorporated herein by reference in their entireties.BACKGROUND OF THE INVENTION [0002] Electronic consumer products are pushing both the bounds of computation complexity and high clocking frequencies. The systems that are experiencing these problems include: VLSI (Very Large Scale Integration), microprocessors, ASIC's (Application Specific Integrated Circuit), SOC (System On a Chip) and FPGA's (Field Programmable Gate Arrays). All of these systems operate at clock frequencies that increase dramatically each year. This higher clock frequency coupled with the increased size of the die...

AI Technical Summary

Benefits of technology

The solution achieves a significant reduction in power dissipation by over two orders of magnitude and ensures synchronized clock signal distribution across the VLSI chip, addressing the challenges of high-frequency operation and large capacitance loads.

Problems solved by technology

Clock networks and clock generation in VLSI chips is a critical issue to high performance circuit operation.

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