Electronic Systems Flashcards
Explain what a subsystem is
a section with a specific role within a system
Explain what a system diagram is
a diagram of the interconnection and flow of signals in an electronic system
Draw a system diagram example
Input —> Process—>Output
Explain what a sensor is
a component that produces a signal in response to a specific physical quantity
Explain what physical quantities are
something that can be measured
Explain what a signal is
an electrical voltage that is used to represent information
Explain what a microcontroller is
a programmable electronic component that adds functionality to a product
Give an example of two products containing a microcontroller and its action
kettle - switches on heating element
Explain what a program is
a set of instructions to tell a microcontroller how to carry out a task
Explain what embedding is
customising a microcontroller to be permanently placed within a product.
Explain what a light sensor is, give an example
a light sensing component in an electronic system
Explain what an infrared sensor is
a infrared sensing component
What are the two types of infrared sensors, give an example for each
- a simple IR sensor
- a Passive Infrared Sensor(PIR)
Explain what a switch sensor is, give an example
a very simple electronic component that can be either off or on.
light switch in a house
Explain what latching is
a switch that stays on or off after the button is released.
Explain what momentary is
a switch that stays on only while it is held pressed
Give an example of a product using light emitting diodes
indicator on a control panel
Give the standard LED size
5mm diameter
Explain the difference between a speaker and a buzzer
a buzzer will produce a tone when it receives power it cannot not produce music or speech like a loudspeaker
Give an example of a product using a speaker
a phone
Give an example of a product using a buzzer
an alarm system
Explain what a motor is
a component that produces rotary motion when it receives power
Give the type of motion produced by an electric motor
rotary
Explain what a microcontroller is
a programmable electric component that adds functionality to a product.
Give an example of two product containing a microcontroller and its action
smart fridge - can sense what is stored inside it and re-order stock when it is needed
kettle - microcontroller senses when the water has reached boiling point
Give an example of an electric motor
refrigerator
