Power Feed Control Device Voltage Conversion Backup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply systems face challenges in quickly supplying power and maintaining appropriate voltage during backup operations, especially when the output voltage of the power storage unit decreases.
Innovation Solution
A power feed control device is designed with a first conductive path for the power storage unit, an element unit, a voltage conversion unit, and a switch unit, allowing current flow to the power path while blocking it from the storage unit, enabling quick power supply and voltage adjustment through parallel voltage conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is supplied via body diode when main battery power is interrupted, then power supply continuity is maintained, but appropriate voltage cannot be supplied when sub battery output voltage decreases
Solution Approach 1:
The patent introduces a DC-DC converter as an intermediary device between the sub battery and the load. This converter mediates the power transmission by actively regulating and converting the voltage from the sub battery to maintain appropriate output voltage levels, solving the problem of voltage instability when power is supplied through the body diode path.
Solution Approach 2:
The patent changes the operating parameters by introducing active voltage conversion capability. The DC-DC converter dynamically adjusts voltage parameters to maintain stable output voltage regardless of fluctuations in sub battery output voltage, transforming the passive body diode conduction into active regulated power supply.
2Use of energy by moving object
If voltage conversion unit is added to convert voltage from power storage unit, then appropriate voltage can be maintained, but device complexity increases
Solution Approach 1:
The DC-DC converter is designed to perform multiple functions: voltage conversion, power supply regulation, and backup operation management. By making this single component multi-functional, the patent reduces the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity while achieving voltage stability.
3Ease of operation
If switch unit is provided to control current flow direction, then power flow control is improved, but device complexity increases
Solution Approach 1:
The patent combines the switch unit with the DC-DC converter, integrating the switching functionality into the voltage conversion device. This merging of functions allows for controlled current flow direction while avoiding the complexity of completely separate switching components, as the converter's control circuitry manages the switching operations.
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 device efficiently supplies power during backup operations and maintains appropriate voltage even when the output voltage of the power storage unit changes, reducing energy loss and ensuring reliable power delivery.
Implementation Method 1
a voltage conversion unit connected in parallel to the element unit between the power storage unit and the power path, the voltage conversion unit performing a conversion operation of increasing or decreasing an input voltage based on power from the power storage unit
Data Source
AI summary
A power feed control device includes a voltage conversion unit performs a conversion operation of increasing or decreasing an input voltage based on power from a power storage unit. An element unit is configured to allow a current to flow to a power path side via itself, and to be able to block a current from flowing to the power storage unit side via itself. A second conductive path is electrically connected to a conductive path disposed between a switch unit and the voltage conversion unit or between the switch unit and the power path. The switch unit blocks a current from flowing from the power path to a third conductive path when the switch unit is in an OFF state, and allows energization via the switch unit between the third conductive path and the power path when the switch unit is in an ON state.