Electronics - Bipolar Junction Transistors (BJT) - Discussion
Discussion Forum : Bipolar Junction Transistors (BJT) - General Questions (Q.No. 1)
1.
When transistors are used in digital circuits they usually operate in the:
Discussion:
48 comments Page 3 of 5.
Sukirti said:
1 decade ago
Digital circuits always operates in two modes that is 1 & 0, and we can also say that though its a circuit so the transistor can be act as a switch, and switch always obtained in saturation and in cut-off modes. Active mode is used only for amplification factor.
Sulukumas said:
1 decade ago
Should be in saturation and cut of region.
Vimal said:
1 decade ago
In digital circuit We works with either HIGH or LOW, so when transistor is in saturation (Vce i.e. max) it is on high voltage, and low voltage when it is in Cutoff (0V).
SAYAN SPC BURDWAN GANGPUR said:
1 decade ago
As far I think that Digital circuit require switching element (ON&OFF) , that why transistor whenever used in digital circuit always operate in saturation (ON) & cut off (off) in region. Basically the digital circuits operate only binary digits (i.e. 0 and 1) , when ever this is operates in bjt saturation region (the switch is on) , &the cut off region (the switch is off).
Yogesh kale said:
1 decade ago
For switching purpose transistor are used in saturation and cutoff. Whereas for amplification purpose transistor are used in active region.
Jabez said:
1 decade ago
Digital circuits used for switching purpose thats why transistor works only in saturation and cutoff region.
Omkar said:
1 decade ago
But transistor is mostly used as an amplifier in active region of it.
Dheeraj said:
1 decade ago
Anybody tell me what is the significance of cut off region?
Jhansi said:
1 decade ago
Cut off (no collector current), useful for switch operation.
Zainab jamal said:
1 decade ago
What can we say about the voltages in cut off as well as saturation ? I mean when Ic is zero in cut off Vce should be maximum right?what about other voltages i.e. (base emitter and collector base) I know that base emitter junction will be reverse biased but can we come to know about the exact voltage? kindly guide me.
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