Voltage Regulator Digital Bit Stream Power Stage Parameters
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Solution Overview
Problem
Conventional power supply systems face challenges in customizing protection parameters and monitoring aspects, as these parameters are often embedded at production, making subsequent modifications difficult and limiting adaptability to different applications.
Innovation Solution
A power supply system that uses a voltage regulator to transmit digital bit streams with programmable power stage parameters over a communication line, allowing for customization and adaptation of power stages without affecting overtemperature protection, using the same line for both analog temperature signal detection and digital parameter updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If parameters are embedded at production in individual power stages, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The voltage regulator pre-configures application-specific parameters by transmitting a digital bit stream containing programmable power stage parameters to the power stages before operation begins. This preliminary configuration action enables the power stages to be adapted to different applications without requiring physical reprogramming or manufacturing changes, thus resolving the contradiction between manufacturing precision and adaptability.
2Reliability
If separate communication lines are used for temperature monitoring and parameter programming, then reliability is improved, but device complexity deteriorates
Solution Approach 1:
The communication line is designed to serve multiple functions: it carries analog temperature signals from power stages to the voltage regulator, and also transmits digital bit streams with programmable parameters from the voltage regulator to the power stages. This multi-functional use of a single communication line reduces device complexity while maintaining reliability through proper signal separation and timing control.
3Adaptability or versatility
If digital bit stream transmission interrupts temperature signal detection, then adaptability is improved, but loss of information deteriorates
Solution Approach 1:
The voltage regulator periodically transmits digital bit streams containing programmable parameters to the power stages through the communication line. Between these periodic transmission intervals, the voltage regulator continuously monitors the analog temperature signals. This periodic action allows field-programmability while ensuring that temperature monitoring is restored and maintained between transmissions, preventing loss of critical thermal information.
Data Source
AI summary
According to an aspect, a power supply system includes a plurality of power stages including a first power stage and a second power stage. The power supply system includes a voltage regulator connected to the first power stage and the second power stage. The voltage regulator is configured to detect an analog temperature signal from at least one of the first power stage and the second power stage via a communication line. The analog temperature signal is detected within a first voltage range. The voltage regulator is configured to transmit a digital bit stream to the first power stage and the second power stage via the communication line. The digital bit stream includes one or more programmable power stage parameters. The digital bit stream has digital levels within a second voltage range.