Combined Timing-Data Broadcast for High-Frequency Module Synchronization
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Solution Overview
Problem
Existing power electronics circuits with a large number of switches face challenges in synchronizing control signals, leading to increased complexity and scalability issues, particularly at higher frequencies.
Innovation Solution
The proposed solution involves a master controller that generates a combined signal by modulating a data signal onto a timing signal, which is then broadcast to multiple modules, allowing for decentralized control and reducing the need for numerous separate signal paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate signal paths are used for each switch to maintain synchronization, then synchronization accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines the timing signal and data signal into a single combined signal that is transmitted through one signal path to multiple modules. This merging eliminates the need for separate signal paths for each switch, reducing device complexity while maintaining synchronization accuracy through the integrated signal structure.
Solution Approach 2:
The combined signal serves multiple functions simultaneously: it provides timing synchronization information and carries data information for module operation. This multi-functionality allows a single signal path to replace multiple dedicated paths, reducing complexity while maintaining the required synchronization precision.
2Device complexity
If multiplexing is used to reduce signal paths, then device complexity is reduced, but synchronization accuracy deteriorates at high frequencies
Solution Approach 1:
Instead of time-multiplexing separate signals, the patent merges the timing and data signals into a single combined signal structure that is transmitted continuously without time-sharing. This eliminates the timing delays and synchronization errors introduced by multiplexing while still reducing the number of required signal paths.
3Measurement precision
If a master controller directly controls all switches, then synchronization is maintained, but processing load increases
Solution Approach 1:
The patent segments the control function by having the master controller generate the combined signal while individual modules independently process and act on the timing and data information. This distribution of processing load reduces the burden on the master controller while maintaining synchronization through the common combined signal reference.
Solution Approach 2:
Each module is equipped with its own microcontroller that independently processes the received combined signal and controls its local switches. This self-service approach eliminates the need for the master controller to directly manage each switch, significantly reducing processing load while maintaining synchronization through the shared timing signal.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables accurate time synchronization between the master controller and modules, allowing the system to operate effectively at high switching frequencies while maintaining synchrony, and reduces the processing load on individual microcontrollers.
Implementation Method 1
The master controller is arranged to modulate the data signal onto the timing signal to generate a combined signal
Data Source
AI summary
An electronics circuit, comprising: a master controller; and a plurality of modules; wherein the master controller comprises: a timing signal generator arranged to generate a timing signal; and a data signal generator arranged to generate a data signal; wherein the master controller is arranged to generate a combined signal based on both the timing signal and the data signal; and wherein the master controller is arranged to broadcast the combined signal to the plurality of modules. By broadcasting the timing signal to the modules along with the data signal, the available bandwidth is effectively utilised without requiring a large number of separate signal paths to each module and without time multiplexing the signals. Thus accurate time synchronisation can be achieved such that the system can operate effectively at a high switching frequency. As the switches on the modules are not directly controlled by the master controller, the system provides a decentralised architecture in which processing of the received signals can be done locally on each module.