Reconfigurable Charge Pump Series Parallel Topology
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Solution Overview
Problem
Existing charge pumps are inefficient when faced with changes in input supply voltage or desired output signal, leading to high output impedance and suboptimal voltage and current levels, requiring either tailored designs for specific systems or universal designs that operate inefficiently.
Innovation Solution
A reconfigurable charge pump system with an array of charge pump cells and reconfiguration circuitry that can selectively arrange cells in series and parallel configurations to adjust voltage boosting paths, reducing output impedance and improving efficiency across varying input and output conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If charge pumps are designed with fixed configuration for specific input voltage, then efficiency is improved, but adaptability deteriorates
Solution Approach 1:
The charge pump employs dynamic reconfiguration of its circuit topology through switching elements that can change the operational mode (e.g., from 2-stage to 4-stage pumping) based on the detected input voltage level, allowing the same device to adapt to different voltage conditions while maintaining optimal efficiency
Solution Approach 2:
The invention changes the operational parameters of the charge pump by adjusting the number of active pumping stages and the configuration of capacitors and switches based on the input voltage level, thereby optimizing performance across different voltage conditions without requiring multiple fixed designs
2Adaptability or versatility
If charge pumps are designed as universal design for multiple systems, then adaptability is improved, but efficiency deteriorates
Solution Approach 1:
The universal charge pump design incorporates dynamic switching mechanisms that automatically adjust the circuit configuration based on the specific input voltage conditions, enabling the same universal device to operate efficiently across multiple different input voltage levels without sacrificing adaptability
3Adaptability or versatility
If charge pumps operate with changed input voltage or desired output signal, then adaptability is improved, but output impedance increases
Solution Approach 1:
The invention dynamically adjusts operational parameters including the number of pumping stages and capacitor configurations based on the desired output signal requirements, thereby maintaining stable output impedance across different operating conditions while preserving adaptability
4Adaptability or versatility
If charge pumps operate with changed input voltage or desired output signal, then adaptability is improved, but efficiency deteriorates
Solution Approach 1:
The charge pump system dynamically reconfigures its internal circuit topology based on real-time detection of input voltage levels and desired output signals, switching between different operational modes (e.g., bypass mode, 2-stage mode, 4-stage mode) to maintain high efficiency across varying operational conditions
Data Source
AI summary
An apparatus includes a charge pump array including multiple charge pump cells. The charge pump array is configurable into a first arrangement of the charge pump cells coupled in series or a second arrangement of the charge pump cells coupled in parallel. The apparatus can include reconfiguration circuitry configured to select the first arrangement of the charge pump cells or the second arrangement of the charge pump cells. The charge pump array is configured to alter a voltage level of a signal based, at least in part, on the selected arrangement of the charge pump cells.