Television Receiver Power Supply Controller for Battery Mode

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Solution Overview

Problem

Conventional methods for reducing electric power demand in television receiver apparatuses, similar to those used in PCs, are not effective when applied to television receivers, leading to significant power consumption even when battery operation is employed.

Innovation Solution

A television receiver apparatus with a power supply controller and switching modules that allow switching between AC commercial power and battery power, incorporating features like peak shift button functionality to optimize power usage, and power-saving modes that reduce brightness and reception states to minimize energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional PC battery control is applied to television receiver apparatus, then the television can operate with battery power, but the electric power demand cannot be reduced greatly

Engineering Contradiction:
Improveelectric power demandVSAvoidoperational flexibility
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

The patent implements dynamic switching between AC adapter power and battery power based on operational state. The power supply controller automatically selects the appropriate power source, transitioning from static power supply configuration to dynamic adaptive power management, thereby significantly reducing electric power demand during battery operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters by adjusting power consumption levels according to the selected power source. When battery power is used, the television receiver apparatus modifies its operating parameters to optimize energy efficiency, transforming it from a general-purpose device to a power-efficient display device.

Inventive Principle:
Principle #35Parameter changes

2Use of energy by stationary object

If the television receiver apparatus operates with battery power during peak demand periods, then electric power demand is reduced, but the device complexity increases

Engineering Contradiction:
Improveelectric power consumptionVSAvoidpower supply system complexity
Core Design Contradiction:
Use of energy by stationary objectVSDevice complexity

Solution Approach 1:

The power supply controller is designed with multi-functionality, serving both as a power source selector and as a power management unit. This universal component handles both AC adapter charging operations and battery power distribution, reducing the need for separate dedicated circuits and thereby limiting the increase in device complexity.

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

Solution Approach 2:

The system implements self-service through automatic power source detection and selection. The power supply controller autonomously determines whether to use AC adapter power or battery power without requiring complex user intervention or additional control systems, thereby managing complexity while achieving power reduction goals.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8659707B2Television receiver apparatus and control method for battery and power-saving operations
Publication Date: 2014.02.25 MAXELL LTD
  • US8659707B2 patent drawing
  • US8659707B2 patent drawing
  • US8659707B2 patent drawing

AI summary

According to one embodiment, a television receiver apparatus capable of operating with a battery, includes a receiver, a first switching module, a second switching module, and a power supply controller. The receiver is configured to receive first and second mode signals. The first switching module is configured to turn on/off a battery operation mode according to the first mode signal received by the receiver. The second switching module is configured to turn on/off a power saving mode according to the second mode signal received by the receiver. The power supply controller is configured to control power supply according to the modes set by the first and second switching modules.