amr mohamed
Occupation: : 369 Date of Birth : 1994-09-29 Join Date : 2010-11-12 Age : 29
| Subject: Thermistor Sun 13 Mar 2011, 8:59 pm | |
| Thermistor Thermistor:Althermistur is essentially a variable resistance (non-linear), but change with temperature change and not change the value of the voltage as Is the case with Alvaristur. Kind of
Negative thermal coefficient thermistor NTC The change in the resistance of the adverse change in the degree Temperature, in the sense that at first the temperature is normal (25 degrees Celsius) would Significant resistance, with high temperature resistance value begins to decline. This type is the most famous and widely used in protection circuits within the fallow Supply of all kinds. Of course, reputable companies that take into Organs Althirmistur NTC. Althirmistur positive thermal coefficient PTC Direction of any change increasing the high degree of resistance Temperature and less than a fall. The first type (Althirmistur NTC) is the most famous And used in protection circuits within the fallow Supply of all kinds. Of course, companies Which is a respectable place in the organs Althirmistur NTC. From here I will focus in the commentary This type NTC. Function Althirmistur electrical appliance?
When you run any Electric wall plug device, the amount of rushes Large electric current to the device for Simple (fractions of a second) has been received after that And quickly to the value of stability, or stability steady state. This rush of the stream in Start-up called in English Inrush current. Any device in the world works When it runs on electricity occurs rush Of the stream to a very short period before settling to Constant value to him. Value stream rush = Weak stream stability at least. If The device draws 3.5 amps (for example) in the development of Stability at the beginning of its operation, it pulls About 10 amps for a very short time (parts of II). Stream rush this hurts some of the elements Within the electronic device, especially With the frequency will arise with every time you start Device. Now using the NTC Althirmistur we can get rid or at At least minimize the damage by a large margin because Althirmistur NTC is to prevent the rush current Of traffic or at least reduce the value of To be borne by the degree of electronic components. Of Here called sometimes Althirmistur NTC last name is a specific stream rush Inrush Current Limiter and to shorten the ICL. Specific work stream rush ICL (ie Althirmistur NTC)
The following figures display some photos of the Thirmistur. Color black is common, but you may Find another color such as green or yellow, for example (see Photo Gallery below).
Sometimes it is hidden inside the plastic wrap as the following picture
| |
|