Experiment #5 Capacitors

Capacitors

There are 4 common types of capacitors

• Non -Electrolytic Capacitor



• Variable Capacitor



• Electrolytic Capacitor



• Tantalum Capacitor

A capacitor is made of 2 metal plates close together spilt by a insulator. When a capacitor is put in a circuit with a voltage supply the capacitor lets the electrons flow into the negative plate to charge and when the battery is removed it holds the charge. The time of how long it takes to charge and disapate the voltage depends on the datasheet below called a EIA code. Capacitance is also measured in Farads (F)

Circuit Capacitor Charging Circuit

Components : 1x Resistor, 1x Capacitor, 1x Switch

Calculated charge time = 100uf with 1k resistor = (0.01 x 1000 = 10 mS)

Calculated = 100uf with 0.1R resistor ( 0.01 x 100 = 1 mS)

Calculated = 100uf with 0.47R resistor ( 0.01 x 470 = 4.7mS)
Calculated = 330uf with 1k resistor (0.033 x 1000 = 33 mS)

I then measured the real charge time with oscilloscope these were results...

One Square upward is 1V and along the bottom is 1 Square per Millisecond.

The resistor affects how long it takes for the capacitor to charge and the capacitance affects how much voltage that capacitor can handle.