Dual Voltage Regulator Control for Dynamic Current Sharing
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Solution Overview
Problem
Existing voltage regulation systems in electronic devices face inefficiencies due to the activation of secondary voltage regulators at early stages, leading to power wastage and potential overload of main regulators, without dynamic control mechanisms to optimize their usage.
Innovation Solution
A sensing and voltage control mechanism that dynamically controls the secondary voltage regulator based on current demand, activating it later to reduce power consumption and prevent main regulator overload, using a current sensor and regulator control circuitry to adjust the contribution of both regulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If secondary voltage regulators are activated at early stages, then the current supply limit is increased, but power consumption increases and the system operates in a power-inefficient manner
Solution Approach 1:
The patent implements dynamic control of secondary voltage regulators through a sensing mechanism that continuously monitors current draw and adjusts regulator activation and contribution levels in real-time. The regulator control circuitry modifies the operating state of secondary regulators based on actual current demand, transitioning from static early-stage activation to dynamic demand-responsive control, thereby optimizing power consumption while maintaining adequate current supply capacity.
2Power
If additional voltage regulators are used to compensate for insufficient current supply limit, then the current supply capacity is increased, but the voltage regulation system operates in a power-inefficient manner
Solution Approach 1:
The patent employs a feedback mechanism where a sensing mechanism continuously monitors the actual current draw from the voltage regulation system and provides this information to the regulator control circuitry. The control circuitry uses this feedback to dynamically adjust the activation and contribution levels of secondary voltage regulators, ensuring that additional regulators are activated only when current demand exceeds the main regulator's capacity, thereby eliminating power inefficiency while maintaining adequate current supply capacity.
3Reliability
If additional voltage regulators are activated early, then the risk of main regulator overload is reduced, but power consumption increases substantially
Solution Approach 1:
The patent implements a monitoring and response system that detects current draw levels and activates secondary voltage regulators only when the current demand approaches the main regulator's limit. The sensing mechanism continuously monitors current levels and triggers secondary regulator activation as a preliminary protective action before overload occurs, rather than activating them early unconditionally. This approach maintains reliability by preventing overload while avoiding the substantial power consumption associated with early continuous activation.
Data Source
AI summary
Control circuitry is coupled to a first voltage regulation circuit and a second voltage regulation circuit. The control circuitry determines whether a signal criterion is met or not. In response to the determination that the signal criterion has been met, the control circuitry controls application of a current generated by first voltage regulation circuit and the second voltage regulation circuit to adjust a ratio between current levels corresponding to the signals generated by the first and second voltage regulation circuits.