Electrical Action Fuzes Flashcards
What are transistors?
Electronic switches and the base leg turns on
What is a Silicon Controlled Rectifier (SCR)?
A Latching Electronic Switch
How does a R/C circuit work?
Timed resistor / Capacitor
What can a photo cell detect?
Light in various spectrums
What function does the base leg of a transistor do?
It is the trigger / switch
What does a 555 circuit look like?
Spider or Japanese battle flag
What does IC stand for?
Integrated Circuit
What does a resistor and capacitor pair together have in common with a 555 chip?
They are timers
Name a few products that you can find a IC chip in?
- Amplifiers - Timers - Oscillators - Voltage Regulators
- Microprocessors - Memories - Microcomputers
What are some ID features of a remote control?
Multiple batteries, receiver, braided wire, servos, micro switch, antenna “may or may not be present”
What do resistor / capacitors and 555 timers have in common?
They are all timing devices
What are the indicators of a remote controlled device?
Antennas, servos and battery packs, braided wires
What function does the base leg of a transistor do?
Turns the transistor on allowing current to flow
What causes a collapsing circuit to function?
Battery decay, cutting the wrong wire, or anti-disturbance
What causes movement of the contacts in a relay?
The energizing/de-energizing of the coil
What does the photo-cell in a transistor circuit do?
Detects light and allows current to flow through the base leg turning on the transistor
What is a relay?
An electromagnetic switch
What is a transistor?
An electronic switch
What does a PIR switch detect?
Temperature changes in detection zones and movement
What do capacitors do?
Store energy / electrons
How are capacitors used?
Power sources or as timing devices
How are Active Infrared devices activated?
By interrupting the infrared beam
What do diodes do?
Allow current to flow one way
