Electronics
Section A
Buzzing In
A1-Introduction
I am going to design a system that will help me in a quiz game that I regularly play at my local youth club. The circuit will consist of a buzzer and two buttons, it may also have a light for each team. This will mean that when one of the buttons is pressed the circuit will latch and the light of that team will go on and the buzzer will make their teams individual tone. This will then be reset by one master switch. The buzzer must make a different tone for each team.
A2-Analysis Of The Problem
My system will need to sound a buzzer and light a light and also block out the other teams response to the question. It will also need to latch so that the buzzer and the light will stay on for a certain amount of time and then go off. This will let the whole of the system be able to work in a proper format with the brief and specification. I will use three subsystems in my circuit, a precedent bistable, a monostable multi-vibrator and an output voltage oscillator. The precedent bistable part of the circuit is the main part of the circuit, it will let one of the team's circuit latch so that they can light their light and sound their buzzer but will not let the other team do the same. The output voltage oscillator is the part of the circuit that makes the noise, the value of the capacitor can be changed so that the buzzer makes a different noise for each team so that the team is easy to recognise. The monostable multi-vibrator is the part of the circuit that controls how long the buzzer is on for. To change the length of the buzzer sound you must change the value of the capacitor
Section A
Buzzing In
A1-Introduction
I am going to design a system that will help me in a quiz game that I regularly play at my local youth club. The circuit will consist of a buzzer and two buttons, it may also have a light for each team. This will mean that when one of the buttons is pressed the circuit will latch and the light of that team will go on and the buzzer will make their teams individual tone. This will then be reset by one master switch. The buzzer must make a different tone for each team.
A2-Analysis Of The Problem
My system will need to sound a buzzer and light a light and also block out the other teams response to the question. It will also need to latch so that the buzzer and the light will stay on for a certain amount of time and then go off. This will let the whole of the system be able to work in a proper format with the brief and specification. I will use three subsystems in my circuit, a precedent bistable, a monostable multi-vibrator and an output voltage oscillator. The precedent bistable part of the circuit is the main part of the circuit, it will let one of the team's circuit latch so that they can light their light and sound their buzzer but will not let the other team do the same. The output voltage oscillator is the part of the circuit that makes the noise, the value of the capacitor can be changed so that the buzzer makes a different noise for each team so that the team is easy to recognise. The monostable multi-vibrator is the part of the circuit that controls how long the buzzer is on for. To change the length of the buzzer sound you must change the value of the capacitor