I have a question in my HND about R/2R ladders, I have been given the diagram below and asked the following question:

The voltages "as shown below" are:

1) When A= 1, B...

R/2R resistor ladder]]>

We need to find IC and are given a 5Vrms source at 100Hz in a circuit with one Capacitor rated at 0.47uF

Now am confused on where to find the dv and dt. Can anyone help me on this..

Thank you]]>

I am in a complete panic and really freaking out, I am the only person in my group with 'electronics' background but in reality i...

Servo movement when activated by alarm]]>

A project I'm working on is the effect of resistance, inductance and capacitance on a single phase system. A 230Vrms supply is connected in series with a user-defined resistors, inductor and capacitor.

In the brief, we have been told that when simulating this circuit when looking at the effect of a pure resistor we must set inductance to 0H but the capacitance must be set to a value such as 1F. I understand this, as this capacitor creates a virtual short circuit across it and we...

Pure Capacitor Circuit Help]]>

I need all workings out!

Data set 10 please

I've attached photos!]]>

frames each of 20 bits and with a “1010” bit pattern in the header parts.Cam someone hel me with the system verilog code for this]]>

Power circuit question]]>

I'm trying to calculate the collector current , so that I can calculate the base current since I already know the gain.

Thank You.]]>

I do not know to solve this problem. If you know, please help!

For circuit from picture I need to calculate Vin. I have this known data:

Ic1=4*Ic2; Vcc=1.4V; Vref=1.1V; Vces=0.2V; Vbe=0.7V (when transistor conduct); Iee=100μA; β1=β2=100

Rb=10kΩ; Rc=1kΩ; Va1->inf. Va2->inf.

Image in attachment. And thanks in advance!]]>

As an assignment for an Electronics course, I need to implement a Schmitt Trigger using the LM311 comparator. However, I have no idea on how to connect both the transistor pins and the positive feedback resistor for the circuit to work.

Thanks in advance for your answers.

Alex

View attachment 32729

View attachment 32730]]>

Automatic Street Light using LDR Project ( Need someone's assistance)]]>

Complete novice to electronics here, and I was wondering if I could get some help. I'm trying to rig up a dc motor to a 9v battery and use a potentiometer to adjust its speed. I thought I calculated proper resistances, but so far I've either had a motor that didn't move, or pots that caught on fire. I measured the motor as drawing 62 miliamps, with of course 9v in the circuit, when there is no resistance.

Any help would be appreciated!]]>

- Relative permittivity: 8

- thickness of: 0.02cm

- Plates of 6cm2

I have got for the equation:

C= A/d x ER E0

C = 6 x 10*4 / 0.02 x 10*-2 x 8 x 8.85 x 10*-12 = The answer I am getting is 2.124 x 10*-14

Where am I going wrong?? Thanks for any help ]]>

Please, I really cannot get how to do it View attachment 32488]]>

I have to find the current through 10-ohm resistor using the method. Any help appreciated...

Thevenin equivalent circuit]]>

On the pictures, one is the problem and another is a solution in a solution manual. I'm curious why Vsb = Vin = 0.2, since Vin is across the source and ground, but Vsb is across the source and bulk (substrate).

Thank You

BlackMelon]]>

I have this assignment for a Diploma I am studying and I'm a little stumped. I feel like the method to working it out is right in front of my face but for some reason I can't see it. Here is what it says in the assignment:

------------

The Radio system will be powered by a D.C. Power Supply, with built-in Back-Up Battery facility. The Power supply is rated at 13.8 V, 25A 100% Duty Cycle.

The Radio System consumes 650 mA when quiescent; 1.75 A when receiving, and 7.75 A when...

Calculating Battery Usage]]>

Could you please help me out on how to connect the following circuit on a breadboard, I'd really appreciate some video links which can help me understand how to interpret the questions and understand the logic behind connecting this circuits.

I'm new here so I'm not even sure if this types of questions are allowed....Anyways, Here's the experiment:

"

Demonstrate how to manually operate a serial display that uses two seven segment displays with decoders, latch and a shift...

Two seven segment displays]]>

Regards]]>

I am feeding its INPUT from +15Vdc through an ammeter. With a 1K resistor the...

LM334 Constant Current Source]]>

I was wondering how can I change the fully depleted soi code in silvaco to have a finfet

thank you]]>

Thanks in advance.]]>

If water is available and gas is available the system should continue operation and if otherwise the system should short down so as not to damage the rotating machine .

Very urgent pls]]>

Can someone give me an electrical schema or any advice?

Thanks.]]>

While I am watching this video of GreatScott! **At 3:21 ,

I took up my calculator and calculate the power by using P=(V^2)/R, and the answer is 72W.

- This happens due to the voltage across the Peltier may not be accurately 12V as there's Req=Rpeltier+Rwire, is my statement correct?

- 72W and 32W is totally a huge difference, why?

- So, when to use P=(I^2)R and P=(V^2)/R to calculate power loss?

Thanks in advanced.

Jay]]>

So im realy stuck trying to understand PLL's in terms of the calculations ive been looking at. This is a good example of the type of thing - taken from phase locked loops by Roland Best

OK so the U(t) signal seems to tell me that its a standard sine with a changing "phase"

The example and figure show a linear frequency increase from t=0

I have no idea what delta*w^dot means in the notation. I have never seen this before. it seems to be saying the change of gradient? anyway...

Then I...

Help with Phase locked loops (PLL) what does phase mean here?]]>

I'm a first year EEE student at University Of Sheffield.]]>

The question is:

In an AC circuit the voltage can be described using a sine wave with the equation:

I need to work out

a. the frequency

b. the amplitude

c. the relative phase

I know that the amplitude is 150v so that is (b) taken care of, I am now unsure how to work out the following despite scouring the internet and my reading...

AC circuit voltage can be described using a sine wave with the equation??]]>

i need to find the current in the circuit number 48 it should be 0.6 amps.

can someone explain me how to solve it.

thanks.]]>

I= i(1+ Kcos(C*cos(w1*t)+k(t)))

C=2.63

w1= 1 KHz

k(t)=5-10 radians

Please let me know the sampling rate selection criteria of the DAQ for phae retrieval.

Thanks in advance.]]>

I have a circuit where an LM35 chip yields temperature in a voltage rate proportional to the ambient centigrade value (eg. 20 degrees would be 20mV V). Then, after i found out i had to turn this into a digital signal to be able to display this voltage on a seven segment display, i decided to use ADC0831 and to use it's binary output, i decided to use MAX7219 (includes a decoder for binary...

Translating Analog Signal into Digital and Displaying it With Led's]]>

Understanding Positive and Negative charges]]>

I have the following scenario:

A camera, one 10m long HDMI cable is going out of the camera into a HDMI-Splitter (1 to 4).

What I want to ask is wheter it is possible to add another 5m HDMI cable after the Splitter with another HDMI-Splitter 1 to 4 at the end of the 5m cable? Like the image attached.

Is this possible? What are the consequences regarding quality?

Thank you.]]>

I know that if...

[BASIC] How to interpret this circuit (including diodes), need detail explanation]]>