In the context of electronics, inductive refers to circuits that use magnetic fields, for things such as power or data transfer or sensing metal objects
Questions tagged [inductive]
259 questions
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Correct use of Flyback or Snubber diode across Motor or Transistor?
From seeing a few schematics where the flyback or snubber diode has been placed across the transistor C-E terminals (Right Configuration), instead of what I typically seen as the the flyback being placed across the coil terminals (Left…
Passerby
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How to design an RC snubber for a solenoid relay driving an inductive load?
I read up that switches driving inductive loads need to be snubbed and an RC pair seems to be the best (cheapest?) option. I have a large-ish AC induction motor (for a refrigerant compressor) that is being switched by a solenoid relay (about once…
Sohail
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Inductive Charging
I've build a small three wheel robot with an Arduino Mega to drive the thing.
I'm looking to keep this bot mobile as much as I can without needing to interact with it for charging etc.
For the moment I am running on a collection of normal AA…
Predominant
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Why have my MOSFET drivers blown in this H-Bridge?
I've built a discrete H-Bridge circuit to run a reasonably beefy 12V windscreen wiper motor. The circuit is below (EDIT: see here for a bigger PDF, StackExchange doesn't seem to let you expand the image):
RM: See larger imgur image here - these are…
xwhatsit
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Use of Flyback Diodes
A flyback diode is commonly use to eliminate sudden voltage spike when current drop across an inductive load. These kind of diode can be found close to relay, motor or sometime MOSFET.
simulate this circuit – Schematic created using…
M.Ferru
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Inductive kick-back voltage calculation
I am controlling a stepper motor (M42SP-5P) with BUZ11 MOSFETs. The winding resistances are \$22\Omega\$ and each winding is 18 mH as I measured. I am driving it with 24V, so let's say the drive voltage is about 1A. I know that the datasheet doesn't…
abdullah kahraman
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Detect aluminum using an inductive sensor
I was wondering if you can use an inductive proximity sensor to detect aluminum or if a capacitive sensor must be used? I wasn't sure if inductive sensors were reserved for ferrous metals only.
user337
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How to track motion of a moving ovendoor
At work, we are measuring various parameters to test out a newly designed oven prototype. To make things more efficient, I am trying to create an electronic setup to automate the measurement, in particular of the door's motion (from fully open to…
boardbite
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Why does short distance wireless energy transfer have such low efficiency?
Wikipedia and numerous other sources cite the following statement about Magne Charge high-power inductive charging system:
For example, the Magne Charge system employed high-frequency induction to deliver high power at an efficiency of 86% (6.6 kW…
sharptooth
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How does a wireless charger work without a magnetic core passing through both "coils"?
Every time I hear the description of a wireless charging system it goes like this: "remember a transformer? It's the same here - one coil is in the base and another is in the device and when you put the device onto the base the transformer gets…
sharptooth
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Cooper Bussmann's screw-in Edison-base mini breakers aren't for inductive loads. What does "inductive" mean?
I'm thinking of buying some Edison-base screw-in miniature circuit breakers to replace some of the fuses in my house. There are some made by Connecticut Electric and some made by Cooper Bussmann.
Cooper Bussmann writes that their Edison-base mini…
unforgettableidSupportsMonica
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How is inductive wireless charging of a moving vehicle on a public road possible in efficient way?
Looks like one of the major problems of wireless energy transfer is efficiency. For example, Magne Charge high power charging system seems to have about 86% efficiency which means that quite a lot of energy is lost when passing several kilowatts of…
sharptooth
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How do snap-on induction charging systems not interfere with device functioning
There's a variety of snap-on wireless charging solutions on the market. For example, this one includes a charging mat and a plastic case that is put onto iPhone.
I suppose the winding is in the middle of the case back and occupies a rather huge…
sharptooth
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Why not use only a MOV as a snubber for relay control of AC motor?
I'm building a circuit to control an AC motor using a relay.
Since the motor is an inductive load, there will be a voltage spike when the relay opens.
It seems that best practice for dealing with this voltage spike is to connect a capacitor across…
avl_sweden
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Can I use an inductive load in an ATX-to-bench supply project?
I'm doing my second ATX-to-bench supply conversion, and this time, I've decided to follow the "book" and place the correct minimum loads on all the rails instead of merely the 5V rail. This involves fairly small loads on the 3.3V rail and 5V rail…
Mark
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