Monday, August 29, 2016

Notes 8/29/16

Components:

used to constructive push electricity to do work. complex organizations to control resistance, currents, voltages

General types of components:

  • two types of components: through hole/surface mount tech
  • both get soldered to attache to circuit
    • through hole: older tech
      • "legs" that pass through board
    • surface mount: newest tech
      • smaller form factor (dramatic at times)
      • sits on the board, soldered same time

Battery

  • batteries are a store of electrical potential
  • supply direct current DC
  • Come in a variety of voltages (V) and capacities known as Ampere-Hours (Ah)
  • body of rechargeable battery will often be marked with milliAmp-Hours (mAh)
switch
  • the fundamental purpose is to connect a section of a circuit
  • typical application: connect the power
  • the diagramming for a simple switch illustrates a toggle that is broken
  • there are many other forms of switches for special circumstances

more on switches

  • switches can have a variety of characteristics, some important terms
    • pole: number of switch 
  • momentary : switch returns to its normal position when released
  • latching : stays at last state until triggered again

Resisters

  • Resistance: amount any component in the circuit resists the flow of current 
    • measured in ohms; Ω
      • common values and multipliers
        • kilohm (thos) kΩ
        • megaohm (millions) mΩ

Capacitors

  • capacitors( caps) come in variety of forms and materials
    • caps store an amount of electrical potential to provide a boost current, deliver a large burst of energy
    • metaphor of a battery/storage bucket
    • capacitance is measured in Farads
  • common values found in small electronics
    • picoFarads (trillionths) pF
    • nanoFarads (billionths) nF
    • microFara (millionth) μ F

Potentionmeters/rheostats/presets

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