Voltage Stabilizing Apparatus for Power Supply Driving

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Solution Overview

Problem

Existing switch regulated power supply devices face challenges in efficiently operating above 500 KHz frequency, leading to resonance issues and increased power consumption, weight, and ripple suppression limitations, while also requiring complex and costly designs.

Innovation Solution

A voltage stabilizing method and apparatus that processes input current to detect interference and adjust voltage and frequency, outputting a sinusoidal drive current with filtered harmonics to maintain stability and reduce power consumption, suitable for various industrial and household applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the switch frequency is increased to suppress ripples and reduce volume, then ripple suppression and compactness are improved, but the switch speed limit and electron loss increase

Engineering Contradiction:

Improveripple suppressionVSAvoidelectron loss

Core Design Contradiction:

Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The patent changes the fundamental operating parameter from conventional pulse-width modulation to resonant current wave oscillating drive, enabling operation at 5 MHz frequency. This parameter change allows the system to achieve better ripple suppression and compactness while managing electron loss through the resonant driving mechanism that reduces switching losses.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the traditional mechanical switch with a resonant driving system that uses electromagnetic resonance to control current flow. This substitution eliminates the mechanical speed limits and electron loss associated with conventional switches, enabling high-frequency operation with reduced energy loss.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Speed

If FET is used as a switch to work in the band from 300 KHz to 3 MHz, then switching performance is improved, but cost and design complexity increase

Engineering Contradiction:

Improveswitching frequency rangeVSAvoidswitch selection and control

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent replaces the FET mechanical switch with a resonant driving system that uses electromagnetic resonance to control current flow. This substitution eliminates the need for careful FET selection and complex control mechanisms, simplifying the overall system while achieving superior switching performance across a broader frequency range.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The resonant driving system utilizes the natural resonant frequency of the circuit to self-regulate current flow, eliminating the need for complex external control mechanisms. The system automatically operates at the optimal frequency without requiring sophisticated switch selection or control circuitry.

Inventive Principle:

Principle #25Self-service

3Power

If series resonance circuit or parallel resonance circuit is employed to increase frequency, then power and ripple suppression are improved, but load current waveform stability deteriorates

Engineering Contradiction:

Improvepower supply efficiencyVSAvoidload current waveform stability

Core Design Contradiction:

PowerVSStability of the object's composition

Solution Approach 1:

The patent introduces a current adjusting unit as an intermediary component between the resonant driving circuit and the load. This unit actively regulates the load current waveform, compensating for the variations caused by resonant operation and ensuring stable current delivery to the load while maintaining the benefits of high-frequency resonant drive.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 stabilizes voltage output, reduces power consumption and interference, and provides a good load current waveform, making it suitable for diverse electrical appliances with improved efficiency and reduced material usage.

Implementation Method 1

processing the current by zero-state response, and outputting a sinusoidal drive current

Methodology Applied

Scientific EffectZero-state response:

Implementation Method 2

processing the sinusoidal drive current by filtering third order harmonic wave in the current while retaining a fundamental wave therein

Methodology Applied

Scientific EffectHarmonic filtering: Filter (electronic)

Implementation Method 3

maintaining resonant current wave oscillating drive

Methodology Applied

Scientific EffectResonance: Resonance

Data Source

PatentUS10613568B1Voltage stabilizing method and apparatus for power supply driving

Publication Date: 2020.04.07 HU JIAHUA

AI summary

A voltage stabilizing method for power supply driving includes: receiving an input current from a power supply, detecting whether the input current is subject to at least one of interference, undervoltage, overvoltage and short circuit, proceeding to the next step if the input current meets the requirement, otherwise outputting the current through the ground wire and repeating the detection; processing the current by zero-state response and outputting a sinusoidal drive current; detecting the type and working parameters of a connected electrical product, and adjusting a required voltage and a required current frequency according to the detection; and detecting the stability of a loop load, transferring the current to the load if it is detected that the stability of the loop load meets the requirement, and going back to step S1 if it is detected that the stability of the loop load does not meet a preset standard.