DC-DC Converter Auxiliary Circuit Dynamic Coupling
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Solution Overview
Problem
Existing DC-DC converting apparatuses with auxiliary circuits suffer from energy loss due to the auxiliary circuit always being in an operating state, even when the input voltage is within the predetermined range, which reduces the overall efficiency of the circuit.
Innovation Solution
A DC-DC converting apparatus with an auxiliary circuit that couples to the main circuit only when the input voltage exceeds a predetermined range, using energy storage circuits and a controller to manage the auxiliary circuit's operation, allowing it to charge and discharge independently of the main circuit, thereby minimizing energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an auxiliary converting circuit is always provided between the main circuit and the power source, then the input voltage range can be adapted to the predetermined range, but the auxiliary circuit consumes energy continuously even when not needed, reducing overall circuit efficiency
Solution Approach 1:
The auxiliary converting circuit is designed to dynamically connect to or disconnect from the main circuit based on the input voltage range. When the input voltage is within the predetermined range, the auxiliary circuit disconnects to avoid energy consumption. When the input voltage exceeds the predetermined range, the auxiliary circuit connects to narrow the voltage range before it reaches the main circuit. This dynamic configuration resolves the contradiction by making the auxiliary circuit adaptive rather than static.
Solution Approach 2:
The system automatically detects the input voltage range and controls the connection state of the auxiliary converting circuit without external intervention. The control unit monitors the input voltage and autonomously determines when the auxiliary circuit should be activated or deactivated, allowing the system to serve itself in managing energy consumption while maintaining voltage adaptation capability.
2Productivity
If the auxiliary converting circuit is activated to narrow the input voltage range, then the main circuit can operate efficiently within its predetermined range, but the auxiliary circuit itself introduces energy loss during the conversion process
Solution Approach 1:
The auxiliary converting circuit performs only the necessary voltage adjustment function without over-engineering. It activates partially (only when needed) and performs minimal conversion action (only enough to bring voltage into the predetermined range). This partial action approach ensures that the auxiliary circuit provides sufficient service to enable main circuit efficiency while minimizing its own energy consumption and conversion losses.
Data Source
AI summary
A DC-DC converting apparatus for obtaining a constant output voltage includes a DC voltage source that outputs a DC power voltage, a main circuit that converts an input voltage into an output voltage having a set value, an auxiliary circuit, coupled to the DC voltage source, that couples to the main circuit when the input voltage has a fluctuation exceeding a predetermined range so that an output voltage is maintained at the output voltage having the set value.