Differential Frequency Multiplier Circuit Without Extra Signal Paths
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Solution Overview
Problem
Existing frequency multipliers require additional circuits to generate differential signals, leading to increased power consumption and circuit area.
Innovation Solution
A frequency multiplier design that uses a first and second impedance module with paths receiving input and inverted input signals, where the phase of the inverted signal is inverted, and the paths are conducted or non-conducted based on the input signals to generate output signals with frequencies N times that of the input signal, without using an additional circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an additional circuit is added to generate differential signals, then the frequency multiplication function is improved, but the power consumption and circuit area are increased
Solution Approach 1:
The patent merges the frequency multiplication function and differential signal generation function into a single integrated circuit structure. The first and second output ends generate differential signals directly through the frequency multiplication process, eliminating the need for separate additional circuits. This combining of functions reduces power consumption while maintaining the frequency multiplication capability.
2Adaptability or versatility
If an additional circuit is added to generate differential signals, then the frequency multiplication function is improved, but the circuit area is increased
Solution Approach 1:
The patent integrates differential signal generation within the frequency multiplier circuit itself. The first impedance module and second impedance module work together to produce differential output signals directly, eliminating the need for separate additional circuits and thereby reducing the overall circuit area.
Solution Approach 2:
The frequency multiplier circuit is designed to perform multiple functions simultaneously: frequency multiplication and differential signal generation. The first and second output ends provide differential signals as a natural output of the frequency multiplication process, making the circuit universal and eliminating the need for dedicated additional circuitry.
Data Source
AI summary
A frequency multiplier includes a first impedance module, a second impedance module, a first path and a second path. When the first path is conducted, the first impedance module generates a first output signal and the second impedance module generates a second output signal. When the second path is conducted, the first impedance module generates a third output signal and the second impedance module generates a fourth output signal. The first and second paths are not conducted simultaneously. A frequency of a first combination signal generated from the first and third output signals and a frequency of a second combination signal generated from the second and fourth output signals are N times of a frequency of the input signal, where N is a positive rational number.