Charge Pump Power Supply With Dynamic Input Voltage Adjustment
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Solution Overview
Problem
Existing power supply devices face challenges in stably providing rated voltage/current to application circuits due to inefficiencies in voltage conversion and dynamic adjustments, leading to power loss and temperature issues in regulators.
Innovation Solution
The power supply device incorporates a charge pump circuit and a power supply circuit that dynamically adjusts the first power voltage based on detection results of the second power voltage or output current, ensuring stable voltage/current delivery to the application circuit through a combination of DC-to-DC converters and low-dropout regulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a charge pump circuit is used to convert first power voltage into second power voltage, then the application circuit can receive the required voltage, but power loss and temperature rise occur in the regulator
Solution Approach 1:
The patent implements dynamic adjustment of the first power voltage based on real-time detection of the second power voltage or output current. The power supply circuit dynamically modifies the input voltage to the charge pump circuit according to load conditions, optimizing the conversion process and reducing unnecessary power dissipation in the regulator while maintaining stable output to the application circuit
Solution Approach 2:
The patent employs a feedback mechanism where the power supply circuit detects the second power voltage or output current from the charge pump circuit and uses this detection result to adjust the first power voltage. This closed-loop control ensures the application circuit receives stable rated voltage while minimizing power loss by adapting the input voltage to actual load requirements
2Reliability
If the first power voltage is increased to ensure stable output, then the application circuit receives sufficient power, but the regulator experiences temperature rise
Solution Approach 1:
The patent dynamically adjusts the first power voltage based on real-time detection of output conditions. Instead of maintaining a fixed high voltage to ensure stability, the system adapts the input voltage level according to actual load demands, maintaining voltage stability at the output while preventing excessive temperature rise in the regulator by avoiding unnecessary high input voltage
Solution Approach 2:
The patent changes the operating parameters of the power supply system by dynamically modifying the first power voltage level. The power supply circuit adjusts this parameter based on detection results of the second power voltage or output current, optimizing the balance between voltage stability and temperature control in the regulator
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
This solution effectively stabilizes voltage/current delivery to application circuits by dynamically adjusting the first power voltage, minimizing power loss and temperature rise in regulators, thus ensuring efficient and reliable operation.
Implementation Method 1
The charge pump circuit converts a first power voltage into a second power voltage
Data Source
AI summary
A power supply device and an operation method thereof are provided. The power supply device includes a charge pump circuit and a power supply circuit. The power supply circuit supplies a first power voltage to the charge pump circuit. The charge pump circuit converts the first power voltage into a second power voltage so as to supply the second power voltage to an application circuit. The power supply circuit detects the second power voltage or an output current output by the charge pump circuit to obtain a detection result. The power supply circuit dynamically adjusts the first power voltage based on the detection result.