Self-Configuring Voltage Regulator with Dynamic Driver Mode Switching
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Solution Overview
Problem
Existing voltage regulators in integrated circuit chips face limitations in handling varying power requirements, as internal FET drivers are inadequate for high power applications and external FET drivers are not always available, necessitating separate chip configurations for low and high power applications.
Innovation Solution
A self-configuring voltage regulator that can selectively operate in internal or external driver modes based on the presence or absence of external FET drivers, using a controller to detect external drivers and adjust its operation accordingly, allowing it to function with both external components lacking or including FET drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If internal FET drivers are used in the voltage regulator, then the chip can operate independently without external drivers, but the drivers are inadequate for high power applications
Solution Approach 1:
The voltage regulator is designed to dynamically switch between two operational modes: internal driver mode for low power applications and external driver mode for high power applications. The controller detects the presence or absence of external FET drivers and automatically configures the regulator accordingly, allowing the system to adapt its power handling capability based on actual requirements while maintaining independent operation when needed
2Power
If external FET drivers are used, then high power applications are supported, but the regulators cannot operate when external drivers are not available
Solution Approach 1:
The voltage regulator is designed with universal functionality to operate in both internal driver mode and external driver mode. The controller includes detection circuitry that identifies whether external FET drivers are present, and automatically selects the appropriate operational mode. This multi-functionality ensures the regulator can handle high power applications when external drivers are available while maintaining compatibility with systems that lack external drivers
3Power
If separate chip configurations are created for low and high power applications, then each configuration is optimized for its specific power level, but device complexity and manufacturing costs increase
Solution Approach 1:
The voltage regulator is segmented into two distinct operational modes within a single chip design: internal driver mode for low power applications and external driver mode for high power applications. The controller is divided into detection circuitry that identifies the operational context and control logic that switches between modes. This segmentation allows one chip to replace what would traditionally require two separate chip configurations, reducing device complexity and manufacturing costs while maintaining optimized performance for both power levels
Data Source
AI summary
Some of the embodiments of the present invention provide a voltage regulator comprising a first driver, a second driver, and a controller configured to control the first driver and the second driver to selectably operate in one of a plurality of operating modes, including an external driver mode and an internal driver mode, wherein which one of the plurality of operating modes is selected is based on presence or absence of one or more external drivers. Other embodiments are also described and claimed.