Voltage Adjusting Circuit With Two-Phase Discharge Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional discharging circuits either directly affect the input voltage source during discharging operations or require complex circuit designs and digital counters, leading to accuracy issues and increased costs.
Innovation Solution
A discharging circuit with a simplified scheme using multiple switch elements and a control circuit that first discharges the output voltage towards a reference voltage source and then towards the input voltage source, avoiding direct impact on the input voltage and eliminating the need for digital counters or logic circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple discharging circuit turns on a switch element to discharge output voltage directly toward input voltage source, then the circuit design is simple, but the input voltage source is seriously affected when voltage difference exceeds a specific value
Solution Approach 1:
The patent introduces an intermediate discharging path through a first switch element connected to a reference voltage source (ground). This intermediary path allows the output voltage to be discharged gradually toward a stable reference level before connecting to the input voltage source, preventing direct high-voltage difference discharge that would interfere with the input source.
Solution Approach 2:
The discharging process is segmented into two distinct phases: first discharging toward the reference voltage source (0V) through the first switch element, then discharging toward the input voltage source through the second switch element. This segmentation divides the harmful direct discharge into controlled sequential steps, reducing voltage stress on the input source.
2Object-affected harmful factors
If a discharging circuit uses a digital counter and multiple switch elements to discharge toward reference voltage first, then toward input voltage source, then the input voltage source is not affected, but the circuit layout area and cost increase due to required logic circuits
Solution Approach 1:
The patent eliminates the need for external digital counters and complex logic circuits by using the inherent characteristics of the switch elements and control signals. The control circuit automatically manages the switching sequence based on voltage level detection, making the system self-regulating without requiring additional counting or timing logic components.
Solution Approach 2:
The control circuit performs multiple functions: it generates control signals for both switch elements, monitors voltage levels, and manages the discharging sequence. This multi-functional approach consolidates what would otherwise require separate digital counter and logic circuit components into a single integrated control unit, reducing overall circuit complexity.
3Ease of operation
If a discharging circuit uses experience-based timing for switching between first and second switch elements, then the circuit can operate, but the accuracy is affected by many factors and is not good enough
Solution Approach 1:
The patent implements voltage-level-dependent control where the state of the switch elements is determined by the actual voltage level at the output node. This feedback mechanism ensures that discharging occurs at the appropriate voltage thresholds rather than relying on predetermined timing, significantly improving discharging accuracy by adapting to real-time voltage conditions.
Data Source
AI summary
The present invention discloses a voltage adjusting circuit including a first switch element, a second switch element, a third switch element, a fourth switch element, a fifth switch element, and a sixth switch element. At first, the voltage adjusting circuit performs a discharging operation on an output voltage toward a reference voltage source, and then when the output voltage level is approaching a voltage level of an input voltage source, the voltage adjusting circuit will perform the discharging operation on the output voltage toward the input voltage source instead, and thus the voltage adjusting circuit can avoid affecting the input voltage source when performing the discharging operation. In addition, the voltage adjusting circuit does not need a digital counter to perform the above dual-phase type discharging operation or multi-phase type discharging operation, and therefore cost of the voltage adjusting circuit is lower, and the voltage adjusting circuit has good accuracy.