Parallel Semiconductor Current Valves for Adjustable Power Range

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Solution Overview

Problem

Current power components for switching medium and high currents are often oversized and inflexible, leading to high development and production costs, unnecessary silicon usage, and safety concerns due to temperature limits being exceeded, as they require multiple variants for different power requirements and cannot adapt to changing demands effectively.

Innovation Solution

A power component with at least two semiconductor current valves that can be connected in parallel, featuring a switching means for electronically parameterizing the valves by switching them into active or passive states, allowing for adjustable performance through controlled switching states, enabling flexible operation and reparameterization to meet varying application needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple variants of power components are produced for different power requirements, then the power component can meet specific application needs, but the development and production effort and costs increase significantly

Engineering Contradiction:
Improveadaptability to different power requirementsVSAvoiddevelopment and production effort
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal power component design where a single base variant with multiple semiconductor current valves can serve multiple different power requirements. By enabling flexible switching combinations of the current valves through the switching means, one power component variant achieves the functionality of multiple specialized variants, thereby reducing development and production complexity while maintaining adaptability to different applications

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces dynamic reconfigurability through switching means that allow the semiconductor current valves to be switched on or off during operation. This dynamic switching capability enables the power component to adapt its performance characteristics in real-time based on application requirements, eliminating the need for multiple static variants and reducing overall system complexity

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a switching power component is inherently oversized to cover any application, then it can be used universally, but the power requirement for control and component dimensions increase

Engineering Contradiction:
Improveuniversal applicabilityVSAvoidcomponent dimensions
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent divides the power component into multiple semiconductor current valves that can be independently switched. This segmentation allows the component to activate only the necessary number of current valves based on the specific application requirements, effectively reducing the active component dimensions and power consumption while maintaining universal applicability through selective activation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent enables parameter changes by allowing the switching means to adjust the number of active semiconductor current valves. This dynamic parameter adjustment optimizes the component's effective size and power requirements for each specific application, eliminating the need for an inherently oversized design while maintaining universal coverage

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If a switching power component is inherently oversized and operated at performance limits, then it can handle any power requirement, but the temperature limit of components is exhausted, reducing safety and service life

Engineering Contradiction:
Improveperformance range coverageVSAvoidsafety and service life
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies partial action by activating only the necessary number of semiconductor current valves required for the specific application rather than operating all valves at maximum capacity. This approach prevents the power component from being operated at performance limits, maintaining temperature margins and improving reliability while still covering the required performance range

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent implements feedback mechanisms through the switching means that monitor and adjust the operation of semiconductor current valves. This feedback control ensures that the component operates within safe temperature margins by dynamically adjusting the number of active valves, preventing temperature limit exhaustion while maintaining the ability to handle various power requirements

Inventive Principle:
Principle #23Feedback

4Manufacturing precision

If different variants of power components are produced for different power requirements, then the exact power range can be matched, but the costs for provision and storage increase

Engineering Contradiction:
Improvepower range matchingVSAvoidstorage requirements
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent creates a universal power component variant that can be configured to match different power ranges through the switching means. This single universal variant replaces multiple specialized variants, eliminating the need for extensive storage of different component types while maintaining precise power range matching capability through selective activation of current valves

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3041138B1Power device for which parameters can be set and method for operating the same
Publication Date: 2020.08.19 ROBERT BOSCH GMBH
  • EP3041138B1 patent drawingFigure 1
  • EP3041138B1 patent drawingFigure 2~4
  • EP3041138B1 patent drawingFigure 5

AI summary

A power component (10) for providing an electric current (I2) and a method for adapting the performance of the power component (10) to an application are provided. The power component (10) comprises: at least two semiconductor current valves (141, 142, 143), which are connected in parallel to one another, at least one switching means (171, 172, 173) for electronically parameterizing the parallel-connected semiconductor current valves (141, 142, 143) by switching at least one of the semiconductor current valves (141, 142, 143) into an active or passive state in order to adapt the performance of the power component (10; 55) to an application, and at least one connection (S1 to S3; S1 to S4) via which the at least one switching means (171, 172, 173) can be controlled by a device (20), a connection (S1 to S3; S1 to S4) being provided for each switching means (171, 172, 173).