Difference between revisions of "Transistors, Diodes, etc."
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[[Category:Components]] | [[Category:Components]] | ||
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| + | ==Transistors== | ||
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| + | Transistors are three termainal devices where one terminal controls the power through the other two. | ||
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| + | ===Transistors Bipolar=== | ||
| + | Bipolar transistors are basically current controlled devices. The collector current is some multiple of the controlling base current. Ignoring the current gain a transistor acts like two diodes connected to a common terminal. This is useful in sorting out transistor leads with an ohmmeter. Two general classes of bipolar transistors are NPN and PNP. | ||
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| + | Links: | ||
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| + | [http://www.piclist.com/techref/transistors.htm?key=base+resistor&from= Transistor Components] | ||
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| + | ===Transistors FET MOSFET=== | ||
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| + | Bipolar transistors are basically voltage controlled devices. The current is controlled by the voltage at the gate. | ||
| + | |||
| + | ===Transistors Transdiode=== | ||
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| + | This is a connection of a transistor to use it as a diode. | ||
| + | |||
| + | ==Diodes== | ||
| + | Diodes are two terminal devices that conduct very differently in one direction verses another. The most basic are used because they conduct well in one direction, and very poorly in the other. | ||
| + | |||
| + | ===General=== | ||
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| + | ===Not General=== | ||
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| + | [[Image:PG31-PowerSupply.jpg|69px]] [[Reverse Protection Diodes]] - PTH and SMD diodes to protect against reverse polarization. | ||
Revision as of 09:24, 30 January 2008
Contents
Transistors
Transistors are three termainal devices where one terminal controls the power through the other two.
Transistors Bipolar
Bipolar transistors are basically current controlled devices. The collector current is some multiple of the controlling base current. Ignoring the current gain a transistor acts like two diodes connected to a common terminal. This is useful in sorting out transistor leads with an ohmmeter. Two general classes of bipolar transistors are NPN and PNP.
Links:
Transistors FET MOSFET
Bipolar transistors are basically voltage controlled devices. The current is controlled by the voltage at the gate.
Transistors Transdiode
This is a connection of a transistor to use it as a diode.
Diodes
Diodes are two terminal devices that conduct very differently in one direction verses another. The most basic are used because they conduct well in one direction, and very poorly in the other.
General
Not General
Reverse Protection Diodes - PTH and SMD diodes to protect against reverse polarization.
