Switched-Supply Frequency Synthesis for High Multiplication Range
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Solution Overview
Problem
Current frequency synthesis devices face limitations in achieving high multiplication orders while maintaining low power consumption, particularly in the unlicensed 60 GHz band, due to the requirement for multiple frequency recovery circuits which increase energy consumption.
Innovation Solution
A frequency synthesis device with a base frequency generator producing non-overlapping basic signals to drive multiple switched-power oscillators, whose outputs are combined and filtered to achieve high multiplication orders without the need for multiple frequency recovery circuits, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple frequency recovery circuits are used to achieve high multiplication orders, then the multiplication range is improved, but the power consumption increases
Solution Approach 1:
The patent merges multiple frequency recovery circuits into a single shared frequency recovery circuit that serves multiple switched-power oscillators. This consolidation allows the system to achieve high multiplication orders through the combination of multiple oscillators' outputs while using only one frequency recovery circuit, thereby maintaining the required multiplication range while significantly reducing power consumption compared to using separate frequency recovery circuits for each oscillator.
Solution Approach 2:
The single frequency recovery circuit is designed to universally serve multiple switched-power oscillators simultaneously. It recovers the clock signal from any of the oscillators and distributes it to control all oscillators, making the frequency recovery function universal rather than dedicated to each individual oscillator. This multi-functionality reduces the total number of frequency recovery circuits needed while maintaining high multiplication capability.
2Adaptability or versatility
If multiple frequency recovery circuits are used to achieve high multiplication orders, then the multiplication range is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple frequency recovery circuits into a single shared frequency recovery circuit that serves multiple switched-power oscillators. This consolidation allows the system to achieve high multiplication orders through the combination of multiple oscillators' outputs while using only one frequency recovery circuit, thereby maintaining the required multiplication range while significantly reducing power consumption compared to using separate frequency recovery circuits for each oscillator.
Solution Approach 2:
The single frequency recovery circuit is designed to universally serve multiple switched-power oscillators simultaneously. It recovers the clock signal from any of the oscillators and distributes it to control all oscillators, making the frequency recovery function universal rather than dedicated to each individual oscillator. This multi-functionality reduces the total number of frequency recovery circuits needed while maintaining high multiplication capability.
Data Source
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AI summary
The present invention relates to a high multiplication rank frequency synthesis device, comprising a basic frequency generator (810) generating two first square-shaped basic signals of the same frequency and inverse to each other, a first synthesis stage (820) comprising two first switched-supply oscillators (821), the supplies of which are respectively switched by the first two basic signals, a second synthesis stage (830) comprising a second switched-supply oscillator (831) the supply of which is switched by a combination of the output signals of the first two oscillators, the output of the second switched-supply oscillator being filtered by a frequency discrimination circuit (832) implemented by means of an injection-locked oscillator.