Pulse Voltage Power Supply Droop Compensation

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Solution Overview

Problem

Conventional pulse voltage power supplies face challenges in maintaining constant voltage during long pulses due to droop, which is often compensated by using excessively large capacitors, increasing costs and safety concerns.

Innovation Solution

A pulse voltage power supply system that includes a main capacitor and a boost converter with a compensator supply and inductor, which transfers energy to the main capacitor during pulse discharge to maintain voltage, reducing droop and eliminating the need for large capacitors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If excessively large capacitors are used to compensate for voltage droop during long pulses, then the voltage stability is improved, but the device complexity and safety issues increase

Engineering Contradiction:
Improvevoltage stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent divides the capacitor system into multiple smaller capacitors (first capacitor and second capacitor) instead of using one excessively large capacitor. These capacitors work together in a coordinated manner with switching elements to provide the necessary charge during long pulses, thereby maintaining voltage stability while avoiding the complexity and safety issues associated with single large capacitors.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs dynamic switching between different capacitor configurations using switching elements. The capacitors can be connected in parallel during charging and in series during discharging, allowing the system to adapt its electrical characteristics dynamically. This dynamic reconfiguration enables voltage droop compensation during long pulses without requiring permanently oversized capacitors.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If excessively large capacitors are used to compensate for voltage droop during long pulses, then the voltage stability is improved, but the cost increases

Engineering Contradiction:
Improvevoltage stabilityVSAvoidcost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent segments the total capacitance requirement into multiple smaller capacitors. This segmentation allows the use of standard, off-the-shelf capacitor values that are more readily available and cost-effective, rather than requiring custom-manufactured excessively large capacitors. The multiple smaller capacitors achieve the same voltage stability function at lower overall cost.

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If excessively large capacitors are used to compensate for voltage droop during long pulses, then the voltage stability is improved, but the safety issues increase

Engineering Contradiction:
Improvevoltage stabilityVSAvoidsafety issues
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent divides the energy storage function across multiple smaller capacitors instead of one excessively large capacitor. This segmentation reduces the energy concentration in any single component, thereby lowering the potential harm from capacitor failure, discharge shocks, or thermal runaway. The distributed energy storage improves system safety while maintaining voltage stability during long pulses.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces switching elements as intermediaries between the capacitors and the load. These switching elements provide controlled discharge paths and isolation mechanisms, enhancing safety by preventing uncontrolled discharge and reducing the risk of electric shock or component damage. The switching elements mediate the energy transfer, making the system safer while maintaining performance.

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 system effectively reduces voltage droop during long pulses, maintaining a consistent voltage supply to the pulse load while minimizing the use of large capacitors, thus addressing cost and safety issues.

Implementation Method 1

a compensator inductor that is configured to receive the electrical energy from the compensator supply and transfer the electrical energy to the main capacitor when the main capacitor is discharging the electrical pulse

Methodology Applied
Scientific EffectElectromagnetic Induction: Electromagnetic Induction

Data Source

PatentEP2856646B1Pulse voltage power supply with droop compensation for long pulses
Publication Date: 2018.12.26 STANGENES IND INC
  • EP2856646B1 patent drawingFigure 1
  • EP2856646B1 patent drawingFigure 2
  • EP2856646B1 patent drawingFigure 3

AI summary

One example embodiment may include a power supply system. The power supply system may include a main capacitor and a boost converter. The main capacitor is used to generate an electrical pulse. The boost converter is configured to be coupled to the main capacitor. Additionally, the boost converter includes a compensator supply including an energy storage capacitor that can store electrical energy. The boost converter also includes and a compensator inductor that receives the electrical energy from the compensator supply and is configured to supply electrical energy to the main capacitor when the main capacitor is generating the electrical pulse.