Pulse-Shaped Modulation Circuit for Signal Delay Uniformity
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Solution Overview
Problem
The inconsistency in waveforms of signals across different positions on a signal line in modulation devices due to parasitic capacitance and resistance leads to inconsistent operations of electronic elements, degrading uniformity.
Innovation Solution
A modulation device with multiple electronic elements, at least one first signal line, and a first driving circuit, where the first driving circuit provides a first signal with a first pulse having a first section and a second section. The second section is adjusted based on the delay condition of the signal on the signal line to synchronize waveforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal lines are used to connect electronic elements in the modulation device, then electrical connection and signal transmission are achieved, but parasitic capacitance and resistance cause signal delay and waveform distortion
Solution Approach 1:
The patent applies preliminary action by adjusting the pulse width of signals before they are transmitted through the signal lines. The driving circuit modifies the signal characteristics in advance to compensate for the expected delay caused by parasitic capacitance and resistance, ensuring that all electronic elements receive synchronized signals despite the harmful effects of the signal lines.
2Reliability
If the pulse width is adjusted to compensate for signal delay, then operation uniformity is improved, but signal transmission time increases
Solution Approach 1:
The patent applies local quality by adjusting the pulse width locally at different positions in the signal transmission path. Instead of uniformly increasing the pulse width for all signals, the driving circuit selectively extends the pulse width only for signals that are expected to be delayed by parasitic capacitance and resistance, thereby minimizing the overall time loss while maintaining operation uniformity.
Data Source
AI summary
A modulation device including a plurality of electronic elements, at least one first signal line and a first driving circuit is provided. The at least one first signal line is respectively electrically connected to at least one of the electronic elements. The first driving circuit is electrically connected to the at least one first signal line. The first driving circuit provides a first signal to at least one of the at least one first signal line. The first signal includes a first pulse. The first pulse includes a first section and a second section closely adjacent to the first section.