Master-Slave Interchangeable Power Supply for Bus Communication
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Solution Overview
Problem
The existing master-slave control model restricts the application scope of power supply devices by preventing them from operating in a master mode, limiting their ability to function as a mastering end and acquire data via a communication bus.
Innovation Solution
A master-slave interchangeable power supply device with a power control module and power supply unit that operates in both master and slave modes, allowing the power supply unit to provide working power only when in slave mode, and a method that involves acquiring data via a communication bus to configure the power supply device and enable it to function as a mastering end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power supply devices operate only in slave mode under master-slave control model, then communication bus specifications are complied with, but application scope and functionality are limited
Solution Approach 1:
The power supply device implements dynamic role switching between master and slave modes based on operational requirements. The device can transition from slave mode during normal operation to master mode when needing to acquire data via the communication bus, and back to slave mode for power supply. This dynamic switching resolves the contradiction by allowing the device to adapt its role rather than being fixed in one mode.
Solution Approach 2:
The power supply device is designed to perform multiple functions by operating in both master and slave modes. In slave mode, it provides power supply functionality. In master mode, it can acquire data, configure itself, and perform self-diagnosis. This multi-functionality expands the application scope while maintaining compliance with communication bus specifications through proper mode switching.
2Ease of operation
If power supply device switches between master and slave modes, then data acquisition and configuration capabilities are enhanced, but operational complexity increases
Solution Approach 1:
The power supply device performs preliminary actions by switching to master mode before actual power supply to acquire necessary data and complete self-configuration. This preliminary data acquisition phase allows the device to gather communication bus data, configure its parameters, and then switch back to slave mode for normal power supply operation. This approach simplifies subsequent operations by preparing the device in advance.
Solution Approach 2:
The device uses feedback mechanisms to determine when to switch modes. After acquiring data in master mode, the device evaluates whether configuration is complete and whether it should return to slave mode. The feedback loop ensures that mode switching occurs at appropriate times based on operational status, reducing unnecessary complexity while maintaining data acquisition capabilities.
3Loss of information
If power supply unit operates in master mode, then it can acquire data via communication bus, but it cannot provide working power simultaneously
Solution Approach 1:
The power supply device employs periodic action by alternating between master mode for data acquisition and slave mode for power supply. The device switches to master mode periodically to acquire necessary data, configure parameters, and perform self-diagnosis, then switches back to slave mode to provide power supply. This periodic switching ensures that data acquisition and power supply functions are performed at appropriate intervals without conflict.
Solution Approach 2:
The device performs data acquisition as a preliminary action before entering the power supply phase. By switching to master mode first, the device gathers all necessary communication bus data, completes self-configuration, and then transitions to slave mode to provide power. This sequencing ensures that power supply occurs only after necessary data is acquired and configured.
Data Source
AI summary
A master-slave interchangeable power supply device, a power supply method, a host with the master-slave interchangeable power supply device, and a computer-readable storage medium for use in execution of the power supply method are provided. Upon receipt of a start command, a power control module and a power supply unit of the power supply device operate in a master mode and a slave mode respectively, and then the power supply device provides a working power to a master device to effect related configuration of the power supply device, so as to allow the power control module to switch to the slave mode and allow the working power to be provided to the master device. Therefore, given compliance with a specification of a communication bus, the power control module and the power supply unit, which function as peripheral devices, can perform a communicative function.