Dual Voltage Output Charging Circuit Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional boost and buck converter circuits require high-cost switch components with high voltage tolerance, leading to increased manufacturing costs due to the need for elements that can withstand the sum of input and output voltages.
Innovation Solution
A modified boost-buck converter circuit design that includes a charging circuit with multiple switches and capacitors, controlled by a control circuit to manage voltage levels, allowing the inductor to charge capacitors and provide dual voltage outputs without the need for high-cost, high-voltage tolerant components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional boost and buck converter circuits use high voltage tolerant switch components to withstand the sum of input and output voltages, then the circuit can operate reliably, but the manufacturing cost increases due to requiring elements with high voltage tolerant level and large surface area
Solution Approach 1:
The patent divides the voltage handling function into separate stages. The first switch handles only the input voltage, while the second switch handles only the output voltage. This segmentation allows each switch to be designed with lower voltage tolerance requirements, reducing the need for expensive high-voltage components while maintaining reliable operation throughout the circuit.
2Power
If conventional boost and buck converter circuits use high voltage tolerant switch components, then the circuit can handle the sum of input and output voltages, but the switch components require large surface area which increases cost
Solution Approach 1:
The voltage handling responsibility is segmented between two separate switches. The first switch is positioned to handle only the input voltage portion, and the second switch handles only the output voltage portion. This segmentation reduces the voltage stress on each individual switch, allowing the use of smaller surface area components that are less expensive to manufacture.
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 enables efficient dual voltage output without the need for expensive high-voltage tolerant components, stabilizing output voltages and reducing overall circuit costs while maintaining performance comparable to conventional designs.
Implementation Method 1
the charging circuit charges the inductor using the DC voltage source, and the bilateral terminals of the inductor charge a first capacitor and a second capacitor respectively
Data Source
AI summary
A dual voltage output device includes a charging circuit and a control circuit. The charging circuit includes a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, an inductor, a first capacitor and a second capacitor. The control circuit controls the first switch, the second switch, the third switch, the fourth switch, the fifth switch and the sixth switch so that a DC voltage source charges the inductor and the inductor charges the first capacitor and the second capacitor individually or together. Therefore, the capacitor provides a first voltage, and the second capacitor provides a second voltage.