Booster Circuit Dynamic Power Adjustment
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Solution Overview
Problem
Conventional booster circuits have an invariable power conversion capacity and cannot adjust to varying input power, leading to inefficiencies and voltage loss due to constant frequency output and diode-induced voltage loss.
Innovation Solution
A booster circuit incorporating a first voltage detection circuit to generate control signals for oscillation circuits and switched-capacitor booster circuits, allowing dynamic adjustment of power conversion based on input voltage, reducing voltage loss and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional booster circuit with constant frequency oscillation is used, then the circuit structure is simple, but the power conversion capacity cannot be adjusted according to input power variations
Solution Approach 1:
The patent applies dynamics by making the oscillation frequency variable instead of fixed. The oscillation circuit's frequency is dynamically adjusted based on input power conditions through voltage detection and control signal generation, allowing the power conversion capacity to adapt to varying input power while managing circuit complexity through controlled variability
Solution Approach 2:
The patent changes the frequency parameter of the oscillation circuit based on detected voltage levels. By detecting the input voltage and generating appropriate control signals, the system adjusts the oscillation frequency to match input power conditions, enabling adaptive power conversion capacity without requiring a completely complex circuit redesign
2Loss of energy
If diodes are used in the booster circuit, then the circuit structure is simple, but voltage loss occurs during voltage boosting
Solution Approach 1:
The patent extracts and removes the diodes from the circuit structure that cause voltage loss. By eliminating these components and replacing their functionality with transistor-based switching mechanisms controlled by the oscillation circuit, the system reduces voltage loss during voltage boosting while managing the complexity through more efficient component utilization
Solution Approach 2:
The patent substitutes the passive diode-based voltage boosting mechanism with an active transistor-based switching system. This replacement uses electronically controlled switches instead of passive components, reducing energy loss through more efficient switching action and better control over the voltage boosting process
3Productivity
If the oscillation circuit operates at constant frequency, then the circuit operation is stable, but the power conversion efficiency cannot be optimized for varying input power
Solution Approach 1:
The patent implements feedback by detecting the input voltage level and using this information to control the oscillation frequency. The voltage detection circuit monitors input conditions and feeds this information back to the oscillation circuit through control signals, allowing the system to optimize power conversion efficiency for varying input power while maintaining stable operation through controlled adjustments
Solution Approach 2:
The patent enables the circuit to self-adjust its operating parameters based on detected input conditions. The voltage detection and control signal generation allow the oscillation circuit to automatically optimize its frequency for the current input power level without external intervention, improving efficiency while maintaining operational stability through self-regulation
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
Enables efficient voltage boosting regardless of high or low input power, stabilizing the boost operation and preventing voltage loss, effectively charging secondary batteries with varying solar battery outputs.
Implementation Method 1
a first voltage detection circuit that outputs as a first control signal a result of comparing an input voltage and a first voltage obtained by dividing an output voltage
Implementation Method 2
a first switched-capacitor booster circuit that operates in accordance with a first clock signal provided from the first oscillation circuit
Data Source
AI summary
Provided is a booster circuit capable of adjusting a power conversion capacity in accordance with input power and also of stably performing a boost operation. The booster circuit includes a first voltage detection circuit configured to output as a first control signal a result of comparing an input voltage and a first voltage obtained by dividing an output voltage, a first oscillation circuit configured to be controlled to operate based on the first control signal, and a first switched-capacitor booster circuit configured to operate in accordance with a first clock signal provided from the first oscillation circuit.