Skip to main content
Electrical Engineering

Questions tagged [charge]

Ask Question

A fundamental physical property held by various particles, most notably electrons

467 questions
Newest Active Bountied Unanswered
-1 votes
0 answers
55 views

I'm testing the circuit above to realise a voltage subtraction operation. In phi1, charge C*(VIN-VCM) is charged at the bottom plate, and in phi2, the bottom plate is switched to VCM, so VOUT will be ...
Jack Black's user avatar
  • 775
4 votes
2 answers
364 views

I am trying to design a very small solenoid with a very fast charge time. Working backwards from a charge time of approximately 500 μs, I want to see if it is possible to create solenoid to meet this ...
sam tkc's user avatar
  • 41
1 vote
0 answers
48 views

I am running some tests on a wye wound BLDC to understand the relationship between duty cycle and charge for a given PWM period. I am slowly linearly increasing the duty cycle off just one phase. ...
Eman's user avatar
  • 610
1 vote
1 answer
148 views

I am designing a PCB with a working chargeble cell (18650). I am using a tp4056 module for charging. There is overcharge and discharge protection on the TP4056 module. But I am not sure if it is ...
mehmet's user avatar
  • 1,255
2 votes
0 answers
103 views

I'm having trouble understanding how high ESR affects the charging current of supercapacitors. I also need some equations to help clarify this. I’m using a supercapacitor array: 7 capacitors in ...
chami's user avatar
  • 649
0 votes
0 answers
90 views

I'm not good at electronics, so I'd appreciate it if you could explain it "on fingers". Setting the task: 4S battery, voltage 10-16.8V (most likely it will be 12-16.8V). 4 solar panels ...
Michael's user avatar
  • 11
0 votes
2 answers
125 views

the below ideal/theoretical gate charge graph image shows that from t0 until t1 point of time the Cgs capacitance is charged and from t2 until t3 point of time the Cgd (Crss) capacitance is charged. ...
DarkKnight's user avatar
  • 853
2 votes
1 answer
611 views

I am a bit confused about the Qg parameter of the mosfet and I would like a help. As I understand the Qg parameter determines the switch ON time of a mosfet. Also, the Gq value is not something ...
DarkKnight's user avatar
  • 853
1 vote
0 answers
53 views

I constructed a axisymmetric FEM model of two electrodes, one at 500 kV, held apart by a solid dielectric component immersed in SF6 gas. I then extracted the information about tangential, normal E ...
Matt D's user avatar
  • 169
2 votes
1 answer
345 views

When researching this topic (and having it referenced to me in other questions that I have asked here), I found this image in reference to the electric field that is established by the charge ...
HFTfE's user avatar
  • 511
1 vote
1 answer
86 views

I have this charger( a 12v drill battery charger, with 3 output pins, B-,B+,C) I've bought it to charge this( a 3cell BMS with two charge/load pins, B-,B+. The problem is charger wont start without ...
S.R's user avatar
  • 113
0 votes
1 answer
77 views

Imagine a parallel plate capacitor charged to some potential, there is now surface charge on the overlapping plate surfaces, lets say one of the plates has current carrying wires attached to the ...
Girts's user avatar
  • 47
0 votes
3 answers
1k views

I have a solar panel controller that has a USB port output 5V ~0.5A to charge my phone, but it's slow. When I use a powerbank that supports super fast charging to charge the phone, it does charge &...
Khỉ Em's user avatar
  • 21
1 vote
2 answers
160 views

I cannot reason why the low side of the capacitor goes negative when the input voltage is brought down from 10V to 0V. I understand this behaviour if D9 was not present, however I would have thought ...
ShtkRoss's user avatar
  • 13
0 votes
0 answers
68 views

in a circuit with three capacitors in series (or plus) how does the in-between capacitor charge and discharge if there isn't circulating current?
moyoumos's user avatar
  • 41

15 30 50 per page
1
2 3 4 5
…
32