Integrated AC-DC Power Circuit for Consumer Electronics
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Solution Overview
Problem
Current electrical power systems are inefficient due to multiple transformer-based power supplies, leading to energy waste and increased costs, particularly in consumer electronics where 'vampire loads' and heat generation are significant, contributing to the energy crisis.
Innovation Solution
A high-efficiency electrical circuit with a primary and secondary power circuit that converts AC to DC, utilizing a switch capacitor voltage breakdown circuit and forward converter, integrated with a controller to optimize power delivery and eliminate standby power consumption, implemented on a semiconductor chip for compact and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple transformer-based power supplies are used, then power delivery capability is improved, but energy efficiency deteriorates and heat generation increases
Solution Approach 1:
The patent consolidates multiple transformer-based power supplies into a single integrated power circuit that includes a primary power circuit and a secondary power circuit. This merging eliminates redundant components and reduces energy losses associated with multiple transformers operating simultaneously, while still providing the necessary power delivery capability through coordinated operation of the integrated circuits.
Solution Approach 2:
The patent extracts and eliminates the standby power consumption component from the system by implementing intelligent control that disconnects or reduces power to inactive circuits. The controller monitors device states and removes unnecessary power draws from the primary and secondary power circuits, thereby improving overall energy efficiency without compromising active power delivery.
2Power
If multiple transformer-based power supplies are used, then power delivery capability is improved, but heat generation increases
Solution Approach 1:
By merging multiple power supply functions into a single integrated power circuit with coordinated primary and secondary circuits, the patent reduces the total number of heat-generating components. The integrated design allows for better thermal management and reduces cumulative heat generation while maintaining adequate power delivery through efficient component coordination.
3Ease of operation
If standby power is continuously supplied, then device readiness is improved, but energy waste increases
Solution Approach 1:
The patent implements periodic monitoring and conditional power delivery through a controller that actively manages the standby state. Instead of continuous power supply, the system periodically checks device states and activates power only when needed, transforming continuous standby consumption into intermittent, demand-based power delivery that maintains readiness while reducing waste.
Solution Approach 2:
The patent extracts and removes unnecessary standby power consumption by implementing intelligent control that disconnects power to inactive circuits. The controller identifies and eliminates redundant power draws from the primary and secondary power circuits while maintaining minimal power for essential monitoring functions, thereby reducing energy waste without completely sacrificing device readiness.
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 solution achieves high efficiency in power conversion, minimizes standby power consumption, and reduces energy waste, enabling cost-effective and reliable power supply for electronic devices while addressing the energy crisis by consolidating power components and optimizing energy use.
Implementation Method 1
The primary power circuit is configured to receive an alternating current (AC) input power signal from the electrical power source and generate an intermediate direct current (DC) power signal
Implementation Method 2
utilizing a switch capacitor voltage breakdown circuit
Implementation Method 3
a forward converter circuit that receives the intermediate DC power signal and generates an output DC power signal
Data Source
AI summary
An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.