Inductive Power Transfer Device: What Is It and How Does It Work?

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Discussion Overview

The discussion revolves around an inductive power transfer device that transfers AC power to a separate, unconnected inductor. Participants explore terminology and concepts related to this technology, including its applications and operational principles.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant seeks information on a device that transfers power wirelessly between inductors, suggesting a search for related terms.
  • Another participant proposes that the device might be similar to a transformer or a resonator.
  • A participant clarifies that the device requires separation between the induction coils, describing a specific application involving a powered chassis and an unpowered module that can be removed.
  • There is a suggestion that the term "magnetic amplifier" might be relevant, along with terms like "isolation amplifiers," indicating a need for electrical isolation.
  • A participant shares a personal example of an electric toothbrush that operates on similar principles.
  • One participant mentions having used the principle of inductive power transfer and refers to it as inductive coupling, suggesting "inductive coupler" as a potential name for the device.

Areas of Agreement / Disagreement

Participants do not reach a consensus on a specific name for the device, and multiple terms and concepts are proposed without agreement on their appropriateness.

Contextual Notes

There is ambiguity regarding the definitions and applications of the proposed terms, as well as the specific operational characteristics of the device in question.

Who May Find This Useful

Individuals interested in inductive power transfer technologies, electrical engineering, or applications requiring wireless power solutions may find this discussion relevant.

enigma
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Hi all,

I'm looking for general information on an inductor type device which transfers AC power to a separate, unconnected (but nearby) inductor. If I were to try googling it, what should my searchword be?
 
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Do you mean a transformer? Or possibly a resonator?

Njorl
 
Kinda like a transformer, but the two induction coils need to be able to be separated.

The application is this: powered chassis, unpowered module which draws power from and can (and will) be removed from the chassis. The environment is such that plugs would not be an optimal design choice due to excessive dust.
 
"Unconnected" connotes "no common core" --- you can try "magnetic amplifier" --- it's a mixed bag in terms of actual magnetic amplifiers and assorted AC/DC, DC/DC, AC/AC, and DC/AC converters. You are perhaps looking for "isolation amplifiers." Trying for electrical isolation?
 
My electric toothbrush works like that.
 
Originally posted by enigma
Kinda like a transformer, but the two induction coils need to be able to be separated.

The application is this: powered chassis, unpowered module which draws power from and can (and will) be removed from the chassis. The environment is such that plugs would not be an optimal design choice due to excessive dust.

I have never heard the device given a name. I have used this principle, and we have always called it inductive coupling. Maybe inductive coupler is a good name.

Njorl
 
Thanks all!
 

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