Hello,
please, would some good person help me with analysis of this circuit (my guess it's a FM radio). My task is to revive it, however I don't quite know how.
What I'd do:
1. Connect the circuit to 9 V voltage source
2. Divide the circuit to 2 parts - AC and DC
3. Search for voltage...
Hello all,
Doing my HNC in electrical and electronic engineering and just over half way through now, come across this in my latest module and for some reason I can not get my head around it, I'll post the question and my attempts below, any help would be greatly appreciated just to see if I am...
For Question 2.1, is the power 500W or 100W ? Do we need to apply the passive sign convention rule for power in whatever cases? Also, i’ve Learnt that we can check answers by balancing power in a circuit. But the power in this kind of circuits don’t balance out, but it is still valid. So when...
So this is the circuit that I have . I managed to define what his function is. The last question that I had to answer is what role does the 2 diodes Dz and Dh have in our circuit ?
I'm not quite sure whether they do have a specific function in this circuit or should I just give a general...
Dear Team,
I was trying to study about bootstrapping in electronic circuits.
When I checked in Internet Wiki says it is a method to improve the input impedance of an amplifier.
In the power electronics context, it has another...
How does the NCP81080 dual gate driver work?
Now I’ve a circuit need used this components but I couldn’t understand it’s operation principal,
Here is datasheet
https://www.onsemi.cn/PowerSolutions/document/NCP81080-D.PDF
It’s means I need two signal HI and LI input
So if I generate square...
Hi, few days ago I got a broken arc lighter used to ignite gas stove. I thought of taking it a apart and look inside the circuit but as per to my knowledge it is confusing me a lot, I hope you guys will be able to remove my confusion so here is the detail.
Data
It uses 1.5V AA cell to work.
This...
Hello
I'm trying to implement a rectifier and AC voltage sensor. The rectifier part works just fine. I'm able to power my device without any issues.
Please look at C2 in the screenshot (Circuit schematic). This connector is connected to AC voltages. Vin is a rectifier and the DC part is to...
Hello!
I'm just a begginer student. I found this circuit of a wattmeter that works only with resistors. Can someone explain to me how the 33k resistor give a voltage of 1 mV to 1 Watt? I did not understand why these resistor values has been chosen and why the it measures only in the 33k...
Hello,
I am designing and developing a low voltage Battery management system . i have designed whole circuit but in one small thing i am stuck. kindly help me answering it.
Battery Pack specifications:
36 V 2.5 AH 10s battery pack.
maximum voltage : 42 v
Minimum voltage : 30v
Power rail...
Hello great team!
I'd immensely appreciate the help of brilliant minds out here.
I've Solar rechargeable emergency unit that can power 2 lights and a small table fan. The unit stopped working with a blown resistor on the circuit. I did try replacing the resistor with an identical color coded...
Hello everyone,
I was wondering if I could get some help on this question below. I know it's says use kcl but I'm just not seeing how I can find these missing currents. Any help is greatly appreciated!
Also this is my first circuit analysis class so I'm sorry if the answer is blatantly obvious!
Hey guys,
I am having trouble with a problem. I would like to derive a formula for some parameters (resonance frequency, Quality factor, Wcl and Wch)
Normally, you will use a general second-order function for a second-order RLC circuit (which is easy to derive). However, my circuit is much more...
Much like my last thread, I have another homework problem in which I must solve for a current value using nodal analysis. I've attempted the problem using some techniques to visualize the circuit from the last forum post and felt confident in my answer, however it is again incorrect and I'm not...
What does pull up mean? In circuit examples, for example for a ESP8266 chip, pull up is connecting to Vcc through a 10kΩ resistor. Why 10k? How is this value derived?
I have seen two separate cases of pull down. One connects to a 10kΩ to ground while another connects directly to ground.
Hope...
as I want to calculate the transfer function of circuit that is meant to generate source current using an Op amp as control loop, I need the gm and r0 of the mosfet(to determine the transfer function of the Op amp current source with nMOSFET) here is the picture of MOSFET with showed parameters...
Hello. This may be a simple problem, but I'm struggling to obtain the resistance R found in the figure below.
First what's throwing my are the two voltage sources. I'm used to seeing these present in op-amps, but the way they intersect is throwing me. I'm not sure how to determine their...