Aut 170 Solid State Devices
Aut 170 Solid State Devices AUT 170
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This 2 page Class Notes was uploaded by Joshua Notetaker on Tuesday March 22, 2016. The Class Notes belongs to AUT 170 at Southern Illinois University Carbondale taught by Mr. Meckfessel in Spring 2016. Since its upload, it has received 41 views. For similar materials see Automotive Electrical Principles in Electronics Technology at Southern Illinois University Carbondale.
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Date Created: 03/22/16
Solid State Devices Electronics- Solid State Devices in a circuit Doping- Mixing a small amount of an impurity with a silicone (.7 volt drop) germanium (.3 Volt drop) structure N-type- 5 Electrons (one has nothing to bond to) P-type- 3 Electrons (positive) P-type + N-type = Diode Diodes… Are the simplest possible semi-conductor Allow current to flow in one direction but not the other o Wont flow if negative charge is on the P-type Types of diodes Zener Diode- has a reverse current bias up to a certain voltage (used in regulators) Rectifier Bridge- Used to turn AC current to DC o Contains 6 diodes Clamping Diode- Used to control damaging high voltage spikes o Installed across coil windings Photo Diode- Allows conduction in forward bias when exposed to light o Resistance decreases as light increases Transistor Base Collector Emitter PNP- Base needs Negative charge NPN- Base needs positive charge o Arrow always points towards the N-type Metal Oxides Field effect transistor (MOSFET) Low current = More efficient Very sensitive to high voltage source Silicon Chips- Can hold thousands of transistors Thermistor NCT- Decreases Resistance as temperature increases PCT- Increases resistance as temperature increases