Questions tagged [induction]

Induction is the process by which the electrical or magnetic state of a body is influenced by the action of electrical or magnetic fields by proximity without contact between a “source” body and the influenced body.

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Is HAKKO FX-1003 compatible with FM-206? [closed]

I have some exprience with soldering with an iron, mainly for DIY stuff. I want to take the next step and invest in a couple of more professional tools. I would like to be able to work with boards ...
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Induction from latching relay at AC lines voltage

I am using an AC latching relay in my house to switch the same LED light from three or more places. Somehow the LED lamp seems to be very sensitive to parasitic voltages, because when I engage one of ...
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Inductive power capture from AC power cable

How much power could be captured per inch by wrapping a wire around a standard 120V power cable for each amp-hour flowing through it (or whatever reference point makes sense if it's not that)? Assume ...
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Temperature measurement in strong AC magnetic field

I have a coil that is continously driven with a maximum of 100A RMS of current at a frequency of 20kHz. The coil is water-cooled and I would like to directly monitor its temperature. The temperature ...
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Induction on the center of solenoid

Why is the magnetic induction at the middle of the solenoid greater than at the end of the solenoid? I know it's bigger, but the question is why is that?
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Induction-heating-circuit doesn't draw any current

I've tried to build an induction-heating-circuit, but it doesn't draw any current from my adjustable transformer, no matter which voltage I give it. I planned to run it from mains-voltage (230V-50Hz). ...
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Charging by electrostatic induction in a new way. Will it work? Instead of connection to Earth I am connecting to another conductor

I am adding the figure of a conventional setup for electrostatic induction. The drawn setup on paper is the special setup. If you don't want to read whole description then just read the summary. ...
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Charging by electrostatic induction

In the given figure, if we connect the positively induced side of the sphere to the earthing instead of connecting it to the negatively induced side, then will the sphere get negatively charged ...
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How does the transformer insure that the electrical power in the secondary coil is nearly the same as in the primary coil?

My question pretty much sums up everything that I want to ask. How is the electrical power in the secondary the nearly same as that in the primary coil of a transformer? Electrical power lost must be ...
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Induction setup is not working, need help in locating where the problem is

I have an induction setup that I have in the picture below: According to Faraday's Law, a changing magnetic field of a primary coil causes an instantaneous change in emf of the other coil. I have ...
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Does current flow from earth connected conductor in uniform electric field?

If we place a conductor inside of uniform external electric field then opposite charges will get induced on the both sides of conductor. What if we connect two earth wire to each side, will continuous ...
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Inductor Back EMF Direction Relative to Changing Current

I have spent a lot of time thinking about Faraday's law and common explanation as given on wikipedia does not sit well with me. I may be confused. My concern is entirely with the wording of this ...
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What is the current induced in a wire connected to an ideal transformer using Faraday's law?

Imagine an ideal transformer interfacing an ideal current source with a ramp function \$i_1(t)=a t\$ connected to the primary winding and a resistor \$R\$ connected to the second winding. We want to ...
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Generation of electrostatic induction

I need to generate a 500 volt electrostatic charge. How can I do this? I don't have a Van de Graaff generator. What are some practical suggestions? Basically I want to do an experiment in which I need ...
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Asynchronous generator - Is the calculated stator current here phase current or line current?

Please see the below circuit schematic for an induction (asynchronous) generator. I have a delta connection, with a voltage = 380V, so phase voltage = line voltage = 380V Then I calculate the stator ...
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How to measure coupling coefficient?

I have an EE core with one winding on one outer leg and a second winding on the other outer leg. I am measuring the inductance on one winding by having the other winding open and vice versa. For the ...
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Calculating power of induction heating of brass

I got this project to make, to anneal brass pipe edges (to be more precise, empty brass gun-shells) of diameter about 8mm. I would like to raise the temperature up to about 450-500°C in few seconds, ...
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Increase the power in an induction heater

I am working on an induction heater of 3 kilowatt. I want to increase the power upto 5 kilowatt. What should I do? I have built zero voltage switching type induction heater. I used a 3uf capacitor ...
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Induced voltage in twisted pair located close to AC conductor

Anyone with MathJax-knowledge, feel free to clean up my formulas below. Thanks Hearth! Owing to certain circumstances I can't go into details to, I have to place my DC supply wires close to an AC ...
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Formula for sizing an induction suppression capacitor

I’m using a set of 12vdc wireless relays to control a 12vdc solenoid and a 120vac, 1.6 amp motor. The relay manufacturer recommends an induction suppression capacitor to protect the control ...
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Simulate a double balanced coil for a metal detector on PROTEUS

I am trying to build a metal detector with double balanced coil, (the scheme source is the french magazine : L'ELECTRONIC POUR TOUS project: EN1465 Un détecteur de métaux très sensible, the magazine ...
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Mutual Inductance Practical Explanation

I can't understand why the Mutual Inductance is measured in Henry. The self inductance of a coil is the abillity that has a coil to create a magnetic field that produses a voltage on itself so to ...
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Induction in transformers and maintaining constant magnetic field

According to Faraday's law the net flux in the core of a transformer will induce an EMF in both coils, and that magnetic flux generated by each induced current in the coils (on-load) will oppose any ...
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Solenoid Train - Best approach for magnetically guiding an object along a path?

My project is to pull an object along a path with solenoids, by cycling their on/off state. I don't know if ferrous core solenoids pulling steel would be more efficient than pulling a neodymium ...
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My ZVS circuit is not oscillating [duplicate]

I had made mini ZVS driver for generating plasma arcs. When is tested ZVS driver with a pair of LEDs then it worked fine, one LED lights up and switches if I connect negative wire to cathode of other ...
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I wanted to make plasma pen. So I made mini ZVS circuit which worked but when I connected it to inductor and transformer it stopped working

I had used these components 333 ohm resistors, an led as indicator, 1uF capacitor (50V), NIKOS P75N02LDG MOSFETs,4R7 inductor, PH 4148 diodes, ccfl transformer from laptop backlight inverter board ( ...
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MOSFET for switching 1000 W ZVS induction heater?

I have a 48V power supply powering a 1000 W ZVS induction heater. I would like to switch the heater on and off with an Arduino. Is using a logic level MOSFET appropriate for this?
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Electric toothbrush: Role of spring in contact-less charging

I accidentally dropped our electric toothbrush on the floor and the bottom lid came undone. I want to fix the toothbrush and make it watertight again. I would glue the lid back on, but this is impeded ...
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5 votes
2 answers
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Are induction stoves considered inductive loads?

I know a washing machine and a coffee grinder are considered inductive loads so when doing math for wiring you would multiply wattage by 2x to be on the safe side. Just one plate of my inductive stove,...
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SPIM Rated Torque

What determines the rated torque of an induction motor? Is it purely limited to max continuous current adherent to heat dissipation requirements, or is there more to it? From what I understand, motors ...
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1 answer
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What causes an induction cooker to lower heat level by itself [closed]

It's more than 5 years old. It is difficult to cook in high temperature because the minus sensor appears to be activated all the time. I end up going from 1600 to 400 every time. What must be the ...
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3 votes
1 answer
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I need help understanding the dynamics of this oscillator [duplicate]

I'm a beginner at circuits (I'm a high school student interested in electronics), and I'm currently working on a school project about a Magnetostriction Oscillator. The circuit construction is as ...
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Battery-less Self-charging Graphics Tablet Pens - EMI

This is a hardware related question. A lot of the new graphics tablets have self-charging, battery-less pens. I assume the charging is inductive, either off the screen surface or from an antenna ...
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What're the differences between eddy current, current generated in electric power generator and inductive crosstalk generated between adjacent lines?

I am studying the operation of Q3D, and found the terminology mutual resistance used in Q3D. From the Help document, it describes loss due to eddy current is modeled in mutual resistance. Combined ...
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How to determine poles?

I designed an induction generator in the Maxwell program for wind turbine, it worked. I selected 4 poles for stator and rotor and 12 slots for both. Is the number of Poles enough for 1500 rpm speed ...
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Wireless charging with metal plate on back of phone: eddy currents wasting energy and heating up?

I just got a car mount for my phone which uses a small magnet stuck to the back of my phone. I'm not sure the material, but I'm guessing it's conductive. My concern is with wirelessly charging my ...
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2 answers
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Can induction go through metal with holes?

I admit that I have already made this question in physics SE, but after a month of no answers, I realized engineering might be better suited to everyday applications. I intend to use (Qi) wireless ...
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What happens when I overload an induction generator

I am trying to generate power with a small induction generator. The RPM is constant. What will hapen when the rated input torque is exceeded?
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Is the current in the correct direction in this image describing a one phase generator?

The dot on the left is current going towards us according to the image. But if the magnet is rotating counter clockwise while the conductor is stationary (which is same as magnet being stationary ...
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Please clarify something about electrical transformers

Please have a look at the following picture and tell me what I am not seeing properly. This is a core type transformer. However, I don't quite understand "One-half low voltage winding and one-...
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White paste and strong plastic smell on induction stove [closed]

My induction hob, when in use for several minutes on high heat is producing a very heavy plastic smell. The hob is working properly besides this smell. I opened the back of the hob and noticed this ...
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Remagnetizing a generator?

https://www.hunker.com/12606720/how-to-remagnetize-an-electric-generator Seems plausible (though I’m still skeptical) for a permanent magnet drill motor. But is it true? And if it is, would it also ...
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Could I transfer data over an induction coupled wireless power system

I’m looking to create a battery powered sealed sensor device. Battery recharge would be via inductive coils. Is it possible to use the wireless power transfer as a data transfer link simultaneously?
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Powering a small generator with a contactless rotating plate

My goal is to contactlessly power a small generator by rotating a steel plate underneath it. Specifically, I have mounted 6 permanent magnets (rectangular shaped) on a shaft, which is mounted on ball ...
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Is a "magneto-dynamic" pickup possible?

I'm trying to imagine a fancy electronic circuit for an electric guitar with lots of customization options. Is it possible to design a guitar pickup analogous to an electro-dynamic speaker? Ie. using ...
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1 vote
4 answers
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Intuitive way of "visualizing" how the energy is stored in an inductor?

I've been trying to more or less understand intuitively how energy is stored in an inductor, but I don't seem to get anywhere decent. In a capacitor I understand, I believe: an external battery pushes ...
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Why would an induction cooker periodically click when idle?

A typical induction cooker has output power adjustment which is usually implemented in two fashions. Higher power settings are "continuous" - the cooker outputs say 1200 watts all the time ...
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A misunderstanding with Faraday's experiment with iron ring

I am learning about electricity and magnetism, and have got some misunderstanding about Faraday's experiments with iron ring. If iron can conduct electricity, why is electricity inducted only while ...
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Induction heating directly from AC wall power

I am working on a project converting a 220 volt resistance heating kiln into an induction heating crucible furnace for melting black sand concentrates from a precious metals mine, which are comprised ...
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The coaxial cable is claimed to show the highest common inductance (M) relative to any other cable configuration?

The coaxial cable is claimed to show the highest common inductance (M) relative to any other cable configuration [Henry W. Ott, (1988), Noise Reduction Techniques in Electronic Systems, 2 Ed., AT&...
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