How Does Resistor Position Affect Transistor Storage Time?

AI Thread Summary
The discussion centers on how the position of a resistor affects the storage time of a transistor, particularly in a common emitter configuration. The storage time, defined as the time required for minority carrier concentration to drop to zero, can be influenced by changes in base current resulting from resistor placement. When the resistor was moved to ground, it likely reduced the base current, leading to an increase in storage time. Participants seek clarification on the relationship between resistor positioning and transistor behavior, emphasizing the importance of circuit configuration. Understanding these dynamics is crucial for optimizing transistor performance in electronic applications.
Monsu
Messages
38
Reaction score
1
hi,
could anyone pls tell me why the storage time of a transistor changes as u change the position of one resistor?
During an experiment, when the resistor connected to the base voltage was reconnected to the ground i noticed that the storage time increased. pls someone explain to me why.
thanks!

(i'd appreciate multiple answers, so pls if smne has answered, pls feel free to drop your own answers too.)

Monsu









I'm not sure what you mean by "storage time," as this is not a parameter I've ever heard of. Can you please try describing your question in more standard terminology?

- Warren

the storage time is the time needed for minority carrier concentration in the vincinity of pn junction to be reduced to zero
 
Last edited:
Physics news on Phys.org
Transistors are current controlled devices. By placing a resistor to ground you may have reduced the current at the transistor base. I can't say this for sure because I don't know your original configuration. Did you monitor or calculate the base current during your experiment?
 
all I did was measure the storage time, delay time, rise time and fall time. I didn't do anything with the current.
pls help!
totally confused!
Monsurat.
 
You said you moved a resistor. By moving a resistor you most likely altered the current to the transistor base. How was your transistor circuit originally configured-- common base, commone emitter or common collector? Do you have a drawing of the original circuit and the altered circuit?
 
it was a common emitter configuration.
here 's a diagram.
 

Attachments

  • transistor set up.JPG
    transistor set up.JPG
    8.2 KB · Views: 652

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Storage time of a transistor changes
Replies
2
Views
2K
Confirmation of T/F questions concerning Diodes-Transistors
Replies
4
Views
1K
How Does Magnet Position Affect EMF in a Coiled Wire System?
Replies
35
Views
4K
How Does Adding Resistors Affect Bulb Brightness in a Series Circuit?
Replies
7
Views
4K
Why Can't the Voltage at a PN Junction be Measured from the Outside?
Replies
1
Views
3K
How does a high pass filter work?
Replies
10
Views
3K
I How Does Changing Mass and Spring Force Affect Watch Oscillators?
Replies
11
Views
2K
How Do Displacement-Time, Velocity-Time, and Acceleration-Time Graphs Relate?
Replies
3
Views
2K
B How do physicists know that the past is immutable?
Replies
4
Views
2K
How Does a Sprinter's Acceleration Affect Race Time?
Replies
1
Views
5K

Hot Threads

Recent Insights

Back
Top