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Results tagged with transistors
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user 90348
A transistor is a semiconductor device that can amplify signals and switch power. The types that are used most are BJT (Bipolar Junction Transistor), UJT (Unijunction Transistor), and MOSFET (FET, for Field Effect Transistor).
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2
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What is the turn-on and turn-off condition of the npn-transistor?
Following is the circuit I have been analyzing. My intention is to calculate the turn on and off condition of the transistor Q1. R1 and R2 (10 kΩ each) are internal to the transistor.
simulate …
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0
answers
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Discrete solution for alternate zero (low) and one (high) at output? [duplicate]
I am trying to figure out a discrete solution for alternate low and high at the output for varying input. Consider the discrete solution as a block.
Input to the system consist of a push-button. Norm …
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0
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How to calculate the output voltage of the mirror circuit?
Please refer the following circuit added.
Output voltage (Vout-A) is measured as follows,
Following is the way I have started analysis:
Krichhoff's voltage law around the loop ( R12 -> R3 -> V_BE …
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0
votes
1
answer
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-Ve feedback comparator and its threshold values?
I was trying to analyse and understand the following circuit.
My intention was to calculate the hysteresis of the comparator.
Circuit working: For both compartor input, there will be voltage inputs …
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vote
1
answer
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LTspice simulation with multiple transistor in single package
Here is the transistor using for LTspice circuit simulation.
But it comes as package with PNP and NPN.
Here is the link of the model as well.
How can I use single transistor alone for simulation
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3
answers
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What is the minimum input voltage to turn on the Transistor?
Attached is the snapshot of the circuit I am working with.
My aim is to find the minimum input voltage to turn on the transistor (T)
With the following assumption, voltage drop across the resistor …
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2
answers
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Why Vi(on) minimum values is higher than the typical value of PDTC124E (NPN transistor)?
Please see the datasheet of PDTC124E (NPN transistor) for reference.
I have added the snapshot of relevant section for quick reference.
Snapshot
Here the Vi(on) value for the transistor is 2.5V an …
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