Adaptive Power Supply Voltage Control for Efficiency Tracking
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Solution Overview
Problem
Conventional power supplies maintain a fixed output voltage, leading to inefficiencies when operating conditions change, and do not accurately account for internal component power consumption, resulting in inaccurate efficiency calculations.
Innovation Solution
A power supply system with a conversion circuit, auxiliary power supply circuit, detection circuit, and control circuit that adjusts output voltage and auxiliary voltage based on input voltage, output power, and environmental temperature to maintain high efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the output voltage is maintained at a fixed value under different operating conditions, then the power supply structure is simple, but the efficiency cannot remain high when operating conditions change
Solution Approach 1:
The patent implements dynamic output voltage adjustment by making the output voltage track with input voltage changes and output power changes. The control circuit continuously monitors operating conditions and adjusts the output voltage accordingly, transforming the static fixed-voltage system into a dynamic adaptive system that maintains high efficiency across varying operating conditions.
Solution Approach 2:
The patent changes the output voltage parameter dynamically based on operating conditions. Specifically, the output voltage is adjusted according to input voltage variations and output power levels, allowing the system to optimize efficiency by adapting the voltage parameter rather than maintaining it fixed.
2Device complexity
If the power consumed by internal components is not considered when calculating efficiency, then the efficiency calculation is simple, but the efficiency estimation is inaccurate and may cause low actual efficiency
Solution Approach 1:
The patent introduces feedback mechanisms where the control circuit monitors not only the output parameters but also considers the power consumption of internal components such as heat dissipation devices, power switching components, and control circuits. This feedback loop enables accurate efficiency calculation by accounting for total system power consumption, leading to more precise efficiency estimation and better optimization decisions.
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 system maintains high efficiency by dynamically adjusting output voltage and auxiliary voltage in response to changes in operating conditions, considering internal component power consumption, thereby optimizing overall power supply performance.
Implementation Method 1
The conversion circuit is configured to generate an output voltage according to an input voltage to power a load
Implementation Method 2
The auxiliary power supply circuit is configured to generate an auxiliary voltage according to the input voltage
Implementation Method 3
The detection circuit is configured to measure an environment temperature
Data Source
AI summary
A power supply is provided. The power supply includes a conversion circuit, an auxiliary power supply circuit, a detection circuit and a control circuit. The conversion circuit generates an output voltage according to an input voltage to power a load. The auxiliary power supply circuit generates an auxiliary voltage according to the input voltage. The control circuit estimates an output power of the power supply. The output power includes a load output power of the conversion circuit and an auxiliary output power of the auxiliary power supply circuit. When at least one of the input voltage, the output power and the environment temperature increases, the control circuit configures the conversion circuit to increase the output voltage correspondingly. When at least one of the input voltage, the output power and the environment temperature decreases, the control circuit configures the conversion circuit to decrease the output voltage correspondingly.