AC Voltage Synthesizer Decouples Mains Frequency
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Solution Overview
Problem
Existing power supplies, including switching and linearly regulated types, introduce unwanted interfering signals that degrade the performance of high-end electronics and audio equipment, particularly due to resonance effects from AC mains power.
Innovation Solution
An apparatus using a synthesizer to generate periodic output voltage signals with frequencies incommensurate with the input AC voltage, reducing resonance effects and interference by employing an oscillator, voltage-controlled amplifier, and rectifier means to produce decoupled AC or DC voltage supplies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional linearly regulated power supplies are used, then power supply stability is maintained, but interfering signals from AC mains frequency and harmonics are introduced
Solution Approach 1:
The patent introduces a synthesizer as an intermediary device between the AC mains power supply and the electronic circuitry. The synthesizer generates periodic output voltage signals with frequencies that are incommensurate with the input frequency, acting as a mediator that decouples the harmful AC mains frequency and harmonics from the power supply while maintaining stable power delivery to the electronic circuitry.
2Use of energy by moving object
If switching power supplies are used, then power efficiency is improved, but unwanted interfering signals are generated
Solution Approach 1:
The synthesizer serves as an intermediary that receives power from the AC mains (or DC source) and generates clean periodic output voltage signals with incommensurate frequencies. This mediator approach allows the system to achieve efficient power conversion while filtering out switching-related interfering signals, as the synthesizer's oscillation frequency is deliberately chosen to be incommensurate with the input frequency, preventing resonance and harmonic interference.
3Reliability
If AC mains power is used directly, then power availability is ensured, but resonance effects and electromagnetic interference occur
Solution Approach 1:
The synthesizer acts as an intermediary power conversion device that accepts AC mains power input and generates periodic output voltage signals with frequencies incommensurate with the input. This intermediary function ensures continuous power availability to the electronic circuitry while eliminating resonance effects and electromagnetic interference by avoiding integer multiple frequency relationships with the AC mains frequency.
Solution Approach 2:
The patent changes the frequency parameter of the output voltage signals to be incommensurate with the input AC mains frequency. By selecting output frequencies that do not have integer multiple relationships with the input frequency, the system transforms the power parameters to avoid resonance and electromagnetic interference while maintaining reliable power supply.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses mains frequency and harmonic interference, improving the quality of power supplies for sensitive electronics by generating output signals with irrational frequency ratios, thereby minimizing electromagnetic interference and maintaining sound quality in audio equipment.
Implementation Method 1
the resulting periodic output voltage signals which may be used, possibly after a suitable amplification, as AC voltage power supply, are decoupled from the mains power supply. In view of the output signals having a frequency differing from the frequency of the power supply, resonance effects are reduced.
Data Source
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AI summary
The invention is directed to an apparatus for providing an AC voltage, comprising synthesizer means for generating at least one periodic output voltage signal, each periodic output voltage signal having an output frequency, wherein the synthesizer means is supplied by an input AC voltage having an input frequency, wherein the synthesizer is configured such that each output frequency differs from the input frequency.