# Tagged Questions

58 views

### What physical meaning does the dot convention for inductors/transformers have? [duplicate]

I never understood what the physical description of the dot on/below the inductor is. Does it have any significance in the organization/connection of the inductors? More specifically: Does how the ...
85 views

### How do “Wire Wound Chip Inductors” work

I have a police scanner that has a couple of modules in it. One of these modules is marked 390G (Data Sheet) I can't see the other modules number but it looks identical. I know they are NOT the ...
127 views

### Current transformer as Sensor, can it sense rectified DC current?

I have been using an inductor around a 230V AC wire ground-side of the switch to check for current in a wire, it is part of control mechanism. I have to add a rectifier now, so occasionally the ...
796 views

### What is saturation in an inductor

I have heard a lot of the time that "the core is not large enough to handle the current, and will reach saturation". What is saturation and why is it a bad thing to reach saturation?
87 views

### R-L Transients Storage Phase: “Inductors” Help?

The below expression is for finding the induced voltage across the coil (inductor) at a certain Time Interval. Furthermore, the additional expressions are to find the induced voltage at 1T and 5T. I ...
136 views

### calculating inductance formula

what is the formula for caculating inductance on the basis of 1)No of turns. 2)Diameter of the wire 3)Diameter of the wounded circle. ? how to calculate the capacitance value in ceramic capacitor ...
969 views

### How do I select the correct inductor value for the following buck regulator?

First of all, I suck a bit at math, and I'm no electronics genius, so the stuff I do is for fun and for learning purposes... I'm working on a buck converter circuit to convert my USB Vbus 5V to 3.3V. ...
672 views

### PCB Trace inductance

I am planning to do a high current (200A+) PWM in a PCB and I am afraid the PCB traces inductances will be a huge problem...so I have some questions: 1- How may calculate the trace inductance? 2- As ...
302 views

### Transformers as Inductors (Weird Results)

If a transformer's primary and secondary are connected in series, then the total inductance of the result, is greater than the summation of each coil separately. That is to say: \\$ L_{total} > ...
2k views

### how a phase delay occurs in capacitors/inductors with visual images

Capacitors provide a phase delay between the current and voltage. Current leads the voltage by 90 degree. I was taught these only with the equations. But I want visual intuition, what happens in the ...
476 views

### How to determine the force of a solenoid based on inductance

I'm looking to potentially build my own small solenoids, I thought perhaps that I could take an Air core inductor, a spring, piece of plastic, and conductive core and build my own. Is there a way to ...
2k views

### How do I use a transformer as an inductor?

Lp: Self inductance of the primary winding. Ls: Self inductance of the secondary winding. Lm: Mutual inductance between the primary and secondary windings. Assume that I need an iron core ...
396 views

### Is there a something else I could use in this circuit instead of inductor?

I'm making the analog interface for MCP3909 chip , I'm having a problem in finding any inductor where I live .. I've two question :- Is there a substitute of this inductors ? What's the reason ...
964 views

### What does the “L” in inductance stand for?

"R" is resistor/resistance, and "C" is capacitor/capacitance, that makes sense. But where comes the "L" for inductor/inductance come from? edit: Wikipedia says it's possibly in honor of Heinrich ...