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The transistor is a semiconductor device that can amplify signals and switch power. Most used types are bipolar (BJT, for Bipolar Junction Transistor), UJT (Unijunction transistor) and MOSFET (FET, for Field Effect Transistor)

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2answers
I want to create AND/OR logic gates using comparators which do not consume a lot of currents. I tried to design the gates using transistors as shown below. But, this might draw a lot of currents …
asked Feb 14 '17 by Mat_python
1
vote
The problem was very simple. My PCB circuit had some remnant soldering flux on it which created some conductivity. I cleaned it properly with hair dryer and it worked completely fine. Thank you all fo …
answered Nov 25 '16 by Mat_python
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4answers
I have soldered this circuit on PCB. When I switch Q1 via MCU pin-1, I see LED glowing on Q3 (not too bright though). What could be the reason for this? Even though, MCU pin 2 is pulled down to GND! …
asked Sep 25 '16 by Mat_python
1
vote
3answers
I want minimum voltage drop between collector and emitter as I have very small Vcc voltage to supply the load. My Vcc is 3.3 volts. I want to use this switch to turn on/off 3 LEDs connected in paral …
asked Sep 25 '16 by Mat_python