Adaptive Flying Capacitor Charging Pump Circuit
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Solution Overview
Problem
Conventional power supply systems for portable electronic devices face challenges in efficiently shortening the charging period while maintaining energy savings, as fixed capacitance values in flying and storage capacitors lead to excessive charging current or noise disturbances in the charging voltage.
Innovation Solution
A power supply system with a charging pump module comprising multiple flying capacitor units and transistor switches, controlled by a module to dynamically adjust the connection of these units based on conduction signals, allowing for adaptive charging voltage generation and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the clock signal frequency is elevated to shorten the charging period, then the charging speed is improved, but the charging pump module continuously outputs excessive charging current which violates energy saving purposes
Solution Approach 1:
The patent applies dynamics by making the capacitance values of flying capacitors and storage capacitors adjustable rather than fixed. The control module dynamically changes the capacitance values based on the charging state of the load module, allowing the system to adaptively optimize between charging speed and energy consumption by selecting appropriate capacitor configurations at different charging stages.
Solution Approach 2:
The patent implements parameter changes by varying the capacitance values of flying capacitors and storage capacitors during the charging process. The control module adjusts these capacitance parameters based on real-time charging status, enabling the system to achieve both fast charging and energy efficiency by optimizing the electrical parameters dynamically rather than maintaining fixed values.
2Loss of energy
If the clock signal frequency is lowered to save energy, then the energy consumption is reduced, but the fixed capacitance values generate more noises in the charging voltage which disturbs the output voltage level
Solution Approach 1:
The patent applies dynamics by making the capacitance values of flying capacitors and storage capacitors adjustable rather than fixed. The control module dynamically changes the capacitance values based on the charging state of the load module, allowing the system to adaptively optimize between charging speed and energy consumption by selecting appropriate capacitor configurations at different charging stages.
Solution Approach 2:
The patent implements parameter changes by varying the capacitance values of flying capacitors and storage capacitors during the charging process. The control module adjusts these capacitance parameters based on real-time charging status, enabling the system to achieve both fast charging and energy efficiency by optimizing the electrical parameters dynamically rather than maintaining fixed values.
3Productivity
If multiple flying capacitor units are turned on to increase charging capacity, then the charging period is shortened, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the flying capacitor bank into multiple individually controllable capacitor units (first flying capacitor unit, second flying capacitor unit, etc.) Each unit can be independently switched on or off by the control module based on charging requirements, allowing flexible configuration of total capacitance without requiring a completely different circuit design for each capacity level.
Solution Approach 2:
The patent applies dynamics by making the capacitance values of flying capacitors and storage capacitors adjustable rather than fixed. The control module dynamically changes the capacitance values based on the charging state of the load module, allowing the system to adaptively optimize between charging speed and energy consumption by selecting appropriate capacitor configurations at different charging stages.
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 enables dynamic charging operations that shorten the charging period while minimizing power consumption and noise disturbances, effectively addressing the limitations of fixed capacitance values in conventional systems.
Implementation Method 1
the charging pump module 20 utilizes conduction signals KA, KB, XA (an inversion signal of KA) and XB (an inversion signal of KB) to correspondingly conduct the transistor switches M1-M8 and utilizes a voltage VDD for charging the flying capacitor units C1 and C2, so as to output a charging voltage VS
Data Source
AI summary
A power supply system includes a charging pump module including a plurality of charging pump circuits, wherein each charging pump circuit includes a plurality of transistor switches and is coupled to a flying capacitor set in parallel and the flying capacitor set includes a plurality of flying capacitor units; and a control module for generating a plurality of control signals to switch a connection relationships of the plurality of flying capacitor units; wherein the plurality of charging pump circuits charges the plurality of flying capacitor units and the connection relationships of the plurality of flying capacitor units determines a generation of a charging voltage; an amplifying module for utilizing the charging voltage as a voltage source to generate an amplifying voltage; and a load module for processing a dynamic charging operation in a predetermined period according to the amplifying voltage, to make the load module achieve a predetermined voltage.