Questions tagged [concept]

10 questions
8
votes
2 answers

Buck converter without oscillator?

I apologise for the attached picture, I just made sure everything is readable so you can assist. So I'm wondering if this is a logical idea, if 12 volts is supplied, to the circuit, as the capacitor reaches the zener 5.1v + 0.65v of the transistor…
BELSmith
  • 136
  • 11
6
votes
9 answers

Why doesn't wireless transmission and reception require a common reference voltage

so I have been struggling with this for a while now. I have tried to search for the answer but haven't succeeded yet. Here is how it goes: If we take USART as an example for wired communication between two devices, the TX and RX lines are referred…
MNM
  • 79
  • 4
2
votes
2 answers

Why passive component has better drift characteristics than active components had?

I came across this paragraph in the classic reference Op Amps For Everyone by Ron Mancini where it says on the first page: Many attempts has been made to make a stable amplifier, but temperature changes and power supply voltage extremes experienced…
KMC
  • 1,380
  • 2
  • 18
  • 39
1
vote
0 answers

Switching multiple I/O lines to one of two ports using one button?

I'm trying to design a switch box so that I can connect one input device (a Thrustmaster TH8A shifter for sim-racing) to two different outputs, with a single switch to change between them. I have a concept already, utilising the CMOS 4053 chip to…
1
vote
2 answers

How can one quantify how fast the phase of a periodic signal is changing?

For a periodic signal, we use Hertz, or the number of cycles per second, to quantify how fast its values are changing. However, how can we quantify how fast the phase of a periodic signal is changing? Given that phase of a periodic signal is…
Underdog
  • 367
  • 1
  • 11
1
vote
1 answer

Conceptual question regarding the Laplace transformation

In preparation for an exam in linear signals and system my instructed handed us a couple of conceptual questions that should prepare us. I ran into the following: Which statements regarding the Laplace transformations are true? Multiplication of…
Carl
  • 3,646
  • 1
  • 14
  • 33
1
vote
2 answers

How to use Ebers-Moll equation to calculate collector current?

The Ebers-Moll equation is given by:$$I_C = I_S(T) * (e^{V_{BE}/V_T})$$ where \$V_T\$ = \$kT/q\$ = 25.3mV at room temperature. In TAOE (2.3.1), it mentioned \$I_S(T)\$ is the saturation current of the particular transistor (which depends strongly…
KMC
  • 1,380
  • 2
  • 18
  • 39
0
votes
2 answers

Voltage source on both sides of a transformer

What will happen if we apply voltage sources (AC) on both the primary and secondary side of a transformer? How will the coil and the flux produced inside it behave?
Vivek Moar
  • 103
  • 3
0
votes
1 answer

Problem with understanding EPROMs and how they're written to

I've got a problem understanding how an EPROM (UV-erasable) works. This question may seem very dumb, but what would happen, if I just try to write contents to an EPROM, which has already been written to? Will it just not work? Or will the contents…
s137
  • 3
  • 1
-1
votes
1 answer

Which kinds of embedded platforms can be considered well-suited for acquiring a general taste of interrupts?

I'm an application programmer without much knowledge in low-level programming. I've set up a basic toolchain for assembly programming with the ATMega328P on an Arduino Uno R3 board. One of my aims is to acquire both a conceptual and a pratical grasp…
Piovezan
  • 133
  • 7