Integrated Circuit Driver for High Voltage Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current processor-based devices face limitations in controlling external devices due to the nominal maximum voltage constraints imposed by semiconductor fabrication processes, which restrict the operation of current drivers and power management capabilities.

Innovation Solution

An integrated circuit with a processor and driver is fabricated to selectively couple voltages higher than the nominal maximum voltage to external terminals, enabling the control of external loads and power distribution through a high voltage subsystem that includes current drivers capable of operating beyond the fabrication-imposed limits, allowing for efficient power management and control of high voltage and current applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the integrated circuit is fabricated with a nominal maximum voltage constraint, then manufacturing reliability and component safety are improved, but the ability to control external high voltage loads is limited

Engineering Contradiction:
Improvecomponent safetyVSAvoidhigh voltage control capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent divides the voltage control function into two segments: an internal low-voltage processing section that operates within fabrication constraints, and an external high-voltage output section that can interface with loads requiring higher voltages. The driver circuit is segmented to provide controlled coupling between these sections, allowing the IC to maintain internal safety while externally controlling high voltage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The driver circuit acts as an intermediary between the internal low-voltage circuitry and external high-voltage loads. It receives control signals within safe voltage levels and translates them into controlled high-voltage output, mediating between the fabrication constraints and the need for high voltage control capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If discrete components are used to achieve high voltage and high current capabilities, then power control flexibility is improved, but device complexity and cost increase

Engineering Contradiction:
Improvepower control flexibilityVSAvoidnumber of discrete components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the driver circuit functionality directly into the integrated circuit, combining what would traditionally require separate discrete components into a single IC package. This integration maintains power control flexibility while reducing the overall number of components and simplifying the system architecture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated driver circuit provides multi-functional capability, handling both low-voltage internal communication and high-voltage external load control within a single circuit. This universal design eliminates the need for separate dedicated high-voltage driver components, reducing complexity while maintaining flexibility.

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

Data Source

PatentUS9710031B2Analog interface for a microprocessor-based device
Publication Date: 2017.07.18 SILICON LABORATORIES INC
  • US9710031B2 patent drawing
  • US9710031B2 patent drawing
  • US9710031B2 patent drawing

AI summary

An apparatus includes an integrated circuit, which includes a processor and a driver. The integrated circuit is fabricated by a process that establishes a nominal maximum voltage for components of the integrated circuit. The driver is adapted to selectively electrically couple a voltage that is higher than the nominal maximum voltage to an external terminal of the integrated circuit.