Voltage Regulation System Using Dynamic Comparator Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional switched voltage regulators fail to adjust power supply conditions based on the load element, leading to increased power loss in the switched power stage circuit.
Innovation Solution
A voltage regulation system that includes a switched power stage circuit, a continuous comparator, a discrete comparator, a clock generator, and a controller, where the controller selectively turns on one of the comparators based on threshold values counted from clock signals to optimize power supply to the load element, reducing power loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a continuous comparator is used to regulate voltage, then voltage regulation precision is improved, but power consumption increases
Solution Approach 1:
The patent dynamically switches between continuous comparator mode and discrete comparator mode based on system state. The continuous comparator is activated when precise voltage regulation is needed, while the discrete comparator is used during normal operation to reduce power consumption. This dynamic adaptation resolves the contradiction by adjusting the comparator operation mode according to actual requirements.
Solution Approach 2:
The system employs periodic sampling through the discrete comparator at clock signal intervals, rather than continuous comparison. This periodic action significantly reduces power consumption while maintaining adequate voltage regulation performance during normal operating conditions, resolving the energy consumption issue.
2Use of energy by moving object
If a discrete comparator is used to reduce power consumption, then power efficiency is improved, but voltage regulation response speed deteriorates
Solution Approach 1:
The system dynamically adjusts the comparator operation mode based on system state. When voltage regulation precision is not critical, the discrete comparator operates periodically to save power. When precise regulation is needed, the continuous comparator is activated to provide fast response, thus resolving the speed-efficiency trade-off.
Solution Approach 2:
The patent changes the operational parameters of the comparator system by switching between continuous and discrete modes. This parameter change allows the system to optimize between power efficiency and response speed depending on the specific operating conditions and requirements.
3Reliability
If both continuous comparator and discrete comparator are always on, then voltage regulation reliability is improved, but device complexity increases
Solution Approach 1:
The controller dynamically manages the operation of continuous and discrete comparators, activating them based on system needs. This dynamic control ensures reliability by using the continuous comparator when needed while reducing complexity by deactivating comparators during normal operation, avoiding the need for both to remain permanently active.
Solution Approach 2:
The system self-regulates by using the discrete comparator for routine monitoring and only activating the continuous comparator when voltage regulation precision is required. This self-service approach maintains reliability while minimizing the operational complexity of having dual comparators.
Data Source
AI summary
A voltage regulation system utilizes a controller to select one of a continuous comparator and a discrete comparator to operate, making one of the continuous comparator and the discrete comparator output a pulse signal to the controller. The controller controls a switched power stage circuit to supply power to a load element. Through the aforementioned configuration, the switched power stage circuit adjusts the power supply based on the condition of the load element, thus decreasing the power loss of the switched power stage circuit.