Multi-Channel Amplifier Power Sharing Without GUI Setup

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Solution Overview

Problem

Existing multichannel power amplifiers are difficult to use/install/setup, require external computing devices or hardware, are expensive, need substantial expertise, are not flexible during installation, have limited user usability, and fail to utilize all available power of a power supply.

Innovation Solution

A multichannel amplifier with a power supply, adjustable voltage limiter, and impedance circuit, equipped with a restriction controller and microprocessor, allows power distribution without a graphical user interface, using a multi-contact switch and sensor system for real-time adjustments based on predefined limits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a graphical user interface or digital signal processing software is used to configure power sharing settings, then power distribution can be adjusted, but the device complexity increases and requires external computing devices

Engineering Contradiction:
Improvepower distribution adjustmentVSAvoidconfiguration system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the power sharing control functionality from complex external software systems and implements it directly within the amplifier using dedicated control circuitry. The controller receives power share settings from a simple interface and directly adjusts voltage limiter and impedance circuit settings without requiring external computing devices or complex software processing.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The amplifier system performs self-configuration through integrated control circuitry that automatically adjusts power distribution based on simple input settings. The controller internally manages voltage and impedance adjustments across channels without requiring external software intervention, making the system self-sufficient and eliminating dependency on external computing devices.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If professional calibration and configuration are required for power sharing setup, then power distribution accuracy improves, but ease of operation deteriorates

Engineering Contradiction:
Improvepower distribution accuracyVSAvoidsetup process
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent implements predefined power sharing configurations stored in memory that can be quickly selected without requiring professional calibration. The system comes pre-programmed with standard power distribution settings that users can directly select, eliminating the need for time-consuming professional setup while maintaining accurate power distribution.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The controller automatically adjusts voltage and impedance parameters based on selected power share settings. When a user selects a power sharing mode, the controller internally modifies the operating parameters of voltage limiters and impedance circuits to achieve the desired power distribution without requiring manual calibration or professional intervention.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If voltage limiters and impedance circuits are adjusted for each channel, then power sharing precision improves, but device complexity increases

Engineering Contradiction:
Improvepower sharing precisionVSAvoidcontrol circuitry
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple control functions into a single integrated controller that manages voltage limiters and impedance circuits across all channels. Instead of separate control mechanisms for each parameter, the controller unifiedly adjusts voltage and impedance settings based on power share inputs, reducing overall system complexity while maintaining precise power sharing control.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12562694B2Power sharing multi-channel amplifier
Publication Date: 2026.02.24 MITEK CORP INC
  • US12562694B2 patent drawing
  • US12562694B2 patent drawing
  • US12562694B2 patent drawing

AI summary

A multichannel amplifier system having a power supply with a specific power output rating. The system includes first and second output channels, each featuring power amplifiers, adjustable voltage limiters, and adjustable impedance circuits. A restriction controller with predefined partial power settings enables adjustment of voltage or impedance based on specific restriction modes. Power distribution balance between output channels is regulated by a multi-contact switch. Real-time data from the output channels, obtained through a sensor system including temperature, current, and voltage sensors, allows dynamic adjustments within predefined limits. The system also incorporates an input signal digital signal processor (DSP) compressor or limiter, operating in conjunction with a microcontroller, to limit audio signals based on specified threshold values. The innovative design facilitates efficient and adaptive power distribution without the need for a graphical user interface, making it ideal for diverse audio applications.