-j = e^(-j*(pi/2))??

Calculator says it's true but I tried in WolframAlpha and it says an whole bunch of non-interesting (for me) stuff but that it is a true statement.

Also, how

??

Edited,

Ok, I got the second one. Still need to know about the 1st one!]]>

So, I was given a task to build a single stage BJT amplifier (Using NI Multisim only), and it was specified to build it so it can gives you a voltage gain (Av) of 12, the circuit configuration is optional. Now, simulating the circuit is easy, but choosing the right components is what makes it complicated for me. Our instructor never talked about the designing process, or anything related to that.

Is there any suggestions or guidance as how to start choosing...

Deigning a BJT amplifier with a specific voltage gain]]>

I have to do a school project in Proteus ISIS software, and the task is to display 8 bits on three seven segment displays. I can only use basic logic gates (AND, OR, XOR, etc.). I'm desperate to find a solution. I would be very grateful for any helpful tip.]]>

Design of a PI compensator]]>

The schematic I've come up with is essentially battery --- resistor 1 --- parallel...

Determining current across parallel circuit.]]>

Where the heck is this phase angle of 1.04 coming from?

I've converted these to phasors and complex numbers and tried to calculate, to no avail.

]]>

I understand this can be achieved with two times 8-bit or four times 4-bit latch.

Any leads or images that I can use to understand what is going on..?

Thanks!

Mod edit: Welcome to AAC! Your post was moved to its own thread rather than reactivate this old one:

https://forum.allaboutcircuits.com/threads/16-bit-latch.119893/#post-1225054]]>

So just trying to find a few good topics to study for the exam. If I remember correctly this was a fairly easy problem to solve.

So there's questions in the past papers, that give examples like this one above, or simply, ask to recall the formula and explain each element. I seem to remember this being very straightforward, if I could find my dang notes on it! which btw I can't

So obviously...

Overall combined cycle efficiency calculation]]>

Voltage=85v

D=0.80mF

E=1.3mF

F=6mF

Using this information i must find voltage, charge and energy.]]>

1) What is the voltage in Node 1?

2) And to check this: Voltages in other nodes are: (V2=V; V4=V5=2V; V6=Vo). Right?

View attachment 143584]]>

* Low current dual stage operational amplifier

M1 2 2 1 1 CMOSP L=5U W=25U

M2 0 0 2 1 CMOSP L=50U W=5U

M3 3 2 1 1 CMOSP L=5U W=25U

M4 4 9 3 1 CMOSP L=5U W=75U

M6 5 10 3 1 CMOSP L=5U W=75U

M5 4 4 0 0 CMOSN L=5U W=10U

M7 5 4 0 0 CMOSN L=5U W=10U

M8 6 2 1 1 CMOSP L=5U W=50U

M9 6 5 0 0 CMOSN L=5U W=40U

C1 5 6 0.5PF

* CLOAD 6 0 10PF

VDD 1 0 DC 5.0

* v- 9

* v+ 10

* vout 6

* Vdd 1

* These SCN-2.0um parameters taken from MOSIS

.MODEL CMOSN NMOS LEVEL=2 LD=0.250000U...

How to get Transient simulation from this circuit and how to plot AC simulation from code]]>

So, let's say we have a series LC circuit with generator ug(t)=Um*cos(ωt)

Then the output signal would be (if we consider the current in the circuit as the output signal) :

View attachment 143751

Now, basically i can understand what happens up to this moment, where

Resonance problem in LC circuit!]]>

Voltage of diode is 0.6V.

At first I supposed that D2 is blocked and D1 is not blocked, but then I stuck on how to calculate V' and V" because of the current.

if anyone can help me I will be thankfull.

Have a good day.]]>

Im just looking for some info regarding a ac rectifying circuit with an reverse biased diode in, and a capacitor that spends the whole time discharging through out the load.

What would the Voltage Time waveform look like? Is the Vmax the Acmax/pi. Or the 0.45 x Root mean square of the AC voltage?

Also the frequency is that the same?]]>

1) This problem should be done by superposition (when V1=0 and then when V2=0) or it is also possible without that?

2) When V1=0 is the current through R1 and R2 the same (but in opposite directions) or not?]]>

The design problems are specified below:

- continuous-time, memoryless, time-invariant circuit
- The design uses MOS (ALD1101, ALD1102, IRF510, IRF9510)
- The characteristic need not be a...

Need help on a time-invariant circuit design assignment]]>

View attachment 103185]]>