Single Voltage Conversion Circuit for Parallel Power Storage
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Solution Overview
Problem
Conventional power supply devices require multiple voltage conversion circuits for each load circuit and power generation element, leading to increased component count and cost, as well as inefficiencies in managing unstable power sources.
Innovation Solution
A power supply device with a single voltage conversion circuit and switch circuit that connects power storage elements in parallel with load circuits, controlled by a circuit that measures voltages and optimally distributes power, eliminating the need for voltage conversion circuits on the load circuit side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage conversion circuits are provided for each load circuit and power generation element, then power supply stability is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges multiple voltage conversion functions into a single shared voltage conversion circuit. Instead of having separate voltage conversion circuits for each load circuit and power generation element, the invention uses one common voltage conversion circuit that serves all components, thereby reducing device complexity while maintaining power supply stability through centralized control.
Solution Approach 2:
The single voltage conversion circuit is designed to perform multiple functions: converting voltages for different load circuits with different voltage requirements, managing power from multiple power generation elements, and coordinating with the control circuit to optimize power distribution. This multi-functional design eliminates the need for dedicated voltage conversion circuits for each component.
2Ease of operation
If voltage conversion circuits are provided for each load circuit, then power distribution control is improved, but manufacturing cost increases
Solution Approach 1:
The control circuit continuously monitors the states of power generation elements and load circuits, and uses this feedback information to dynamically control the switching elements. This feedback mechanism enables precise power distribution control without requiring multiple expensive voltage conversion circuits, as the single voltage conversion circuit is intelligently managed based on real-time system conditions.
Solution Approach 2:
The control circuit acts as an intermediary between the single voltage conversion circuit and multiple load circuits. It manages the complex power distribution logic and switching control, separating the complexity of power management from the voltage conversion hardware. This allows cost-effective implementation while maintaining sophisticated power distribution control capabilities.
3Adaptability or versatility
If multiple voltage conversion circuits are used, then adaptability to different power generation elements is improved, but device size increases
Solution Approach 1:
The system employs dynamic switching control where the switching elements are controlled based on the types and states of connected power generation elements and load circuits. This dynamic adaptability allows the single voltage conversion circuit to efficiently handle different combinations of power generation elements without requiring dedicated hardware for each type, thereby maintaining versatility while minimizing device size.
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
This configuration reduces the device's size and cost while ensuring stable power supply to load circuits, even with unstable power sources, by prioritizing power distribution based on load requirements and using power storage elements effectively.
Implementation Method 1
a voltage conversion circuit (11) which converts a voltage of power generated by the power generation element (101)
Implementation Method 2
a plurality of power storage elements (13, 14) connected in parallel with respective load circuits
Data Source
AI summary
According to one embodiment, a power supply device includes a voltage conversion circuit configured to convert a voltage of power generated by a power generation element; a plurality of power storage elements connected in parallel with respective load circuits; a switch circuit configured to switch an electrical connection between the voltage conversion circuit and each of the plurality of power storage elements; and a control circuit configured to measure voltages of the plurality of power storage elements and to control the switch circuit based on the measured voltages.