Electrical Action Fuzing Flashcards
What do diodes do?
Allow current to only flow in one direction
What does IC stand for?
Integrated Circuit
What does a resistor/capacitor have in common with a 555 chip?
Both used for 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 (3)?
Battery decay, cutting the wrong wire, or anti-disturbance
What causes movement of the contacts in a relay?
The engergizing/de-energizing of the coil
What does the photo-cell in a transistor circuit do?
Detects light and allows current to flow through base leg of transistor
What is a relay?
An electromagnetic switch
What is a transistor?
An electronic switch
What is an SCR?
An electronic switch (latching, Silicon Controlled Recitifer)
What does a PIR switch detect?
Temperature changes and movement
What do capacitors do?
Store energy
How are capacitors used?
As power sources or as timing devices
How are Active IR devices activated?
By interrupting the infrared beam
