The transistor is an enhancement of Vacuum Tubes (Vacuum Tube). The main function of a transistor is the signal amplifier and as an electronic switch. Compared with Vacuum tubes, transistors have advantages such as the physical form of a smaller and less power used. Talking transistors are complex, so here we learn practical course, if you want to go deeper please take courses transistor analog I and analog II, guaranteed
dizzy ......... : P
Image Hosted by ImageShack.us Figure 1. Physical form transistors.
Typically a transistor has three pins, namely:
* Base
* Emitter
* Collectors
Base is a pin to activate and to disable a transistor. Emitter and collector connected to positive voltage source or ground negative atan (depending on the configuration of the transistor).
To determine the foot Base Emitter Collector of a transistor is usually used a multimeter. But I have some tips for determining the foot transistor without using a multimeter, the way he is:
* Leg collector transistor is usually connected with the body when the transistors are packed using the metal. When transistors packed in plastic then the collector is usually connected to the transistor body to be connected with the coolant.
* If the transistor is not connected with the cooling, then the legs should be sought first base. If you have found, amid what is now his base leg on the edge? If the foot of the middle base, usually the collector is at the right. If the base edge of the collector is at right center.
If confused, please refer to figure 2. Image Hosted by ImageShack.us
Figure 2. Leg Configuration Transistor (usually).
Transistor is divided into two types: NPN and PNP. To distinguish the type NPN or PNP transistor, you can see the arrow in the leg emitornya (in the image sequence is lo so, rather than its physical form). For NPN direction arrows out, while for the PNP into the direction of arrow See figure 3 only, though more clearly.
Image Hosted by ImageShack.us Figure 1. Physical form transistors.
Typically a transistor has three pins, namely:
* Base
* Emitter
* Collectors
Base is a pin to activate and to disable a transistor. Emitter and collector connected to positive voltage source or ground negative atan (depending on the configuration of the transistor).
To determine the foot Base Emitter Collector of a transistor is usually used a multimeter. But I have some tips for determining the foot transistor without using a multimeter, the way he is:
* Leg collector transistor is usually connected with the body when the transistors are packed using the metal. When transistors packed in plastic then the collector is usually connected to the transistor body to be connected with the coolant.
* If the transistor is not connected with the cooling, then the legs should be sought first base. If you have found, amid what is now his base leg on the edge? If the foot of the middle base, usually the collector is at the right. If the base edge of the collector is at right center.
If confused, please refer to figure 2. Image Hosted by ImageShack.us
Figure 2. Leg Configuration Transistor (usually).
Transistor is divided into two types: NPN and PNP. To distinguish the type NPN or PNP transistor, you can see the arrow in the leg emitornya (in the image sequence is lo so, rather than its physical form). For NPN direction arrows out, while for the PNP into the direction of arrow See figure 3 only, though more clearly.
picture 3.transistor PNP and NPN
source : patas121.blogspot.com
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