Adaptive Regulator and Charge Pump Switching for Stable Output Voltage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power converters struggle to maintain a stable output voltage as input voltage changes, leading to potential incorrect voltage supply.
Innovation Solution
A controller that adaptively changes the modes of the regulator and the charge pump based on operational information, allowing for concurrent or serial transitions between different modes to maintain voltage stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power converter uses a fixed regulator mode and charge pump mode, then the device complexity is reduced, but the output voltage stability deteriorates when input voltage changes
Solution Approach 1:
The patent implements dynamic mode switching for both the regulator and charge pump based on real-time input voltage conditions. The controller adaptively transitions the regulator between buck and boost modes, and the charge pump between different voltage multiplication modes (1X, 1.5X, 2X), allowing the system to maintain stable output voltage despite input voltage variations without requiring overly complex control mechanisms
Solution Approach 2:
The system changes operational parameters (regulator mode and charge pump multiplication ratio) based on input voltage levels. When input voltage is high, the system uses buck mode with lower multiplication ratios; when input voltage is low, it switches to boost mode with higher multiplication ratios, optimizing performance across different operating conditions
2Adaptability or versatility
If the power converter uses adaptive mode transitions, then the adaptability to input voltage changes is improved, but the transition time and potential instability increase
Solution Approach 1:
The controller proactively transitions regulator and charge pump modes in anticipation of or response to input voltage changes before they cause output voltage instability. By monitoring input voltage conditions and preemptively adjusting modes, the system maintains stability during transitions rather than reacting after instability occurs
Solution Approach 2:
The system uses feedback from voltage sensing circuitry to monitor both input and output voltages, enabling the controller to make informed decisions about mode transitions. This feedback mechanism ensures that transitions occur at optimal moments to maintain stability while adapting to changing input conditions
Data Source
AI summary
In a power converter having a regulator and charge pump, both of which operate in plural modes, a controller receives information indicative of the power converter's operation and, based at least in part on said information, causes transitions between regulator modes and transitions between charge-pump modes.