GMU:Devices of Perception/Paul Haas

06.06.2014

Vgl.l Demokratie-Technologie "The Real World of Technology" Ursula Franklin

WIKI

DC Direct Current Gleichstrom AC Alternate Current Wechselstrom

Ohm's law Ohmsches Gesetz

R = U/I U = R*I I = U/R

R - Resistance, Widerstand Ohm U - Voltage, Spannung V I - Amperage, Stromstärke A

Capacitor/Condensor, Kondensator -used to store energy electrostatically in an electric field - Speichern von elektrischer Ladung und damit zusammenhängender Energie

Electrolytic Capacitor, Elektrolyt-Kondensator

- same function as the usual capacitor, only use with DC - Anode and Kathode → polarised

F - Farad - electric capacity, elektrische Kapazität Müh - micro, mikro

0,01MühF (103) 1 MühF 4,7 MühF 47 MühF 220 MühF

Resistors and ist color Codes, Widerstände und ihre Farbcodes

brown black red 1 K Ohm brown black orange 10 K Ohm brown black yellow 100 K Ohm brown black green 1 M Ohm

LED

LED - Light Emitting Diode ↔ (regular) Diode always connected to a resistor as it does not need as much current as the other parts of a circle → resistor with 1 K Ohm (brown black red)

Components of a circuit

Battery

Photocell Potentiometer

LED

Diode

Resistor

Jumper Wires

Capacitor

Electrolytic Capacitor

Integrated Circuit - 555 Timer

Comparator

Momentary Switch

Single Pole Single Throw SPST

Single Pole Double Throw SPDT

Double Pole Double Throw DPDT

Solid State Relay SSR

two different circuits

daisy chain - Reihenschaltung

parallel chain - Parallelschaltung

07.06.2014

ASTABLE 555

turns on and off constantly, square wave like

MONOSTABLE 555

trigger, decide when on or off

08.06.2014