Power Supply Voltage Overshooting Control via Dynamic Gain
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Solution Overview
Problem
Power supply apparatuses experience voltage overshooting, where the output voltage exceeds the standard output voltage when increasing due to dynamic loads, potentially damaging the devices.
Innovation Solution
A power supply apparatus with a voltage generating unit, a voltage gain control unit, and a voltage detection unit is used to control the voltage gain when the output voltage decreases, ensuring it remains within the standard output voltage range by adjusting the gain or bandwidth, preventing overshooting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the voltage generating unit increases output voltage rapidly to meet dynamic load demands, then the response speed and productivity are improved, but voltage overshooting occurs causing damage to devices
Solution Approach 1:
The patent implements dynamic adjustment of voltage gain based on real-time voltage detection. The control unit modifies the gain of the voltage generating unit in response to detected voltage levels, creating a dynamic system that adapts to prevent overshooting while maintaining fast response capability. This is achieved through feedback control where the gain is increased when voltage drops and decreased when voltage approaches the standard level.
Solution Approach 2:
The patent employs a feedback mechanism where the voltage detection unit continuously monitors the output voltage and provides information to the voltage gain control unit. This closed-loop feedback system enables the control unit to adjust the gain dynamically, preventing voltage overshooting by reducing gain when voltage approaches the standard level and maintaining fast response by increasing gain when voltage drops due to dynamic loads.
2Stability of the object's composition
If the voltage gain is increased to prevent voltage dropping under dynamic loads, then the stability is improved, but voltage overshooting is caused when voltage increases
Solution Approach 1:
The patent makes the voltage gain dynamic rather than fixed. The voltage gain control unit adjusts the gain of the voltage generating unit based on real-time voltage detection, increasing gain when voltage drops to maintain stability and decreasing gain when voltage approaches standard level to prevent overshooting. This dynamic adjustment resolves the contradiction between stability and overshooting.
Solution Approach 2:
The patent changes the parameter of voltage gain dynamically based on operating conditions. By adjusting the gain parameter in response to detected voltage levels, the system maintains voltage stability during load changes while preventing overshooting. The gain parameter is increased when voltage drops and decreased when voltage rises, optimizing both stability and preventing harmful overshooting.
Data Source
AI summary
A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.