Public learning track
Switch Debouncing and Schmitt Trigger Timing
11th Grade · Technology · UK A-Level
4 lessons
Goal
Design switch-debouncing networks and configure inverting Schmitt triggers as relaxation oscillators with defined frequencies.
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Switch Bounce and RC Debouncing Circuits
4 lessons
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- 1Switch Bounce and RC Debouncing CircuitsUp nextStart
- 2Schmitt Trigger Switching Thresholds and HysteresisPremiumNot started yet
- 3Designing Schmitt Trigger Astable OscillatorsNot started yet
- 4Frequency and Duty Cycle Calculations for Schmitt AstablesNot started yet
Standards Covered
- ELEC-9.3General Certificate of Education Advanced Level (UK A-Level) · Electronics · Year 13 (A2 Level) · Grade 11the use of capacitors as the basis of timing circuits and in debouncing switches, including the time constant (T) for an RC circuit (T = RC)
- ELEC-9.7General Certificate of Education Advanced Level (UK A-Level) · Electronics · Year 13 (A2 Level) · Grade 11the design of an astable circuit based upon a Schmitt trigger
- ELEC-9.6General Certificate of Education Advanced Level (UK A-Level) · Electronics · Year 13 (A2 Level) · Grade 11the properties of an astable circuit and its use as a pulse generator
Curriculum Framework
11th Grade · Technology · UK A-Level
1
7 lessons
Capacitor Principles and RC Transient Analysis
Calculate equivalent capacitance, analyse RC charging and discharging transients using exponential and logarithmic relationships, and apply the 5RC approximation to timing circuits.
2
4 lessons
Switch Debouncing and Schmitt Trigger Timing
Design switch-debouncing networks and configure inverting Schmitt triggers as relaxation oscillators with defined frequencies.
3
9 lessons
The 555 Timer: Monostable and Astable Circuits
Analyse, design, and troubleshoot monostable and astable pulse generator circuits using the industry-standard 555 timer integrated circuit.