Short Pulse Circuit with Delay Control for Jitter-Free Switching
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Solution Overview
Problem
Conventional short pulse generating circuits for switches or press keys suffer from signal jitter, bouncing malfunctions, and slow response times, making them unsuitable for applications requiring rapid and stable signal generation.
Innovation Solution
A short pulse generating circuit comprising a pulse generating circuit, an actuation control circuit, and a delay control circuit, where the pulse generating circuit is coupled to a switch and power source, generating a long pulse that transitions to a short pulse output upon switch activation, with adjustable delay times to minimize noise and ensure prompt response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional press key circuits are used to generate pulse signals, then the circuit structure is simple, but the response time is slow and signal stability is poor due to jitter and bouncing malfunctions
Solution Approach 1:
The circuit is divided into three functional modules: a pulse generating circuit (103) that produces long pulses, an actuation control circuit (101) that controls voltage levels, and a delay control circuit (102) that adjusts timing. This segmentation allows each module to perform its specific function optimally, resolving the contradiction between reliability and complexity by organizing complexity into manageable, specialized segments.
Solution Approach 2:
The actuation control circuit (101) pre-loads the output of the pulse generating circuit (103) to a fixed voltage level before the switch is activated. This preliminary action eliminates signal jitter and bouncing malfunctions by ensuring the circuit is in a known stable state before the actual pulse generation begins, thereby improving reliability without significantly increasing overall complexity.
2Speed
If conventional pulse generating circuits are used, then the circuit is simple, but the response speed is slow
Solution Approach 1:
The delay control circuit (102) dynamically adjusts the voltage level of the pulse signal based on the switch activation timing. By making the circuit behavior dynamic rather than static, the system can optimize response time for each activation event, achieving faster response speeds while managing complexity through controlled dynamics in specific circuit portions.
Solution Approach 2:
The invention replaces mechanical switch bouncing and mechanical delay mechanisms with electronic voltage control and electronic timing circuits. The actuation control circuit (101) and delay control circuit (102) use electronic signals to control pulse generation timing, substituting mechanical processes with electronic ones to achieve faster response times.
3Duration of action of moving object
If the pulse generating circuit generates a long pulse, then the circuit is simple, but the output pulse duration is too long and not suitable for applications requiring short pulses
Solution Approach 1:
The delay control circuit (102) acts as an intermediary between the pulse generating circuit (103) and the final output. It receives the long pulse from the generating circuit and introduces a controlled delay to truncate it into the desired short pulse duration. This intermediary approach allows precise control of pulse duration without fundamentally changing the simple pulse generation mechanism.
Solution Approach 2:
The delay control circuit (102) changes the voltage level parameter of the pulse signal over time, transitioning from the initial long pulse voltage level to a truncated short pulse voltage level. By dynamically changing the voltage parameter based on timing, the circuit achieves precise control over output pulse duration while maintaining relatively simple circuit architecture.
Data Source
AI summary
A short pulse generating circuit including a pulse generating circuit, an actuation control circuit and a delay control circuit is provided. The pulse generating circuit is electrically coupled to a switch, which is coupled to a power. When the power is turned on, the power causes the pulse generating circuit to generate a long pulse. The actuation control circuit is electrically coupled to the power and the pulse generating circuit. When the power is turned on, the actuation control circuit controls a voltage level of each output of the pulse generating circuit to a fixed value. The delay control circuit is electrically coupled to the pulse generating circuit. When the switch is turned on, the power controls the delay control circuit to change the voltage level of each output of the pulse generating circuit to generate a short pulse output.