inductor

Hi, I have returned to an old issue I am struggling with – my door lock solenoid project again. I have created a really simple LTSpice circuit driving my solenoid at 1Khz, 50% duty. The solenoid I measured with an inductance meter, 35mH and 25R series resistance, this has been entered into the...

Hi, I want to build the DC2781A evaluation board by Analog Devices. Most of the passive parts I already have, so the building cost would be much cheaper for me. However, I wasn't able to find a distributor that sells the inductor of this schematic: RPT129NP-102MB by Sumida. Therefore, I'm...

Any idea what could be the issue or wrong with it?

Hello, I have the broken bluetooth module that you can see in the picture below. Noted in RED 1 and 2, are the two places where an SMD inductor should be. I salvaged one SMD inductor going there, which you can see in the picture below: However, I destroyed it while trying to connect leads...

Hey team. New to the forum. Just need help identifying the following inductor on an HP laptop. Any info on what I can replace this part with would be greatly appreciated. -Swift

I am experimenting with an inductor to see what is happening when it gets saturated and at which current it happens. So I set up the attached test circuit and checked the current on the 1Ω resistor. I expected the current to ramp up until the inductor gets saturated and then to increase at even...

Hi all, I have a Solar LED Light that is not working, and I want to use this to get back into electronics a little. I'm a Control Systems designer, but this level of electrical work still creates a lot of confusion for me. So I am hoping to use this as a learning project. The board is a...

Hello everyone, first thread here, I have cracked open a Dell XPS13 9350 that I've diagnosed the motherboard being dead. It's my mothers old laptop. I figured this would be a good chance to learn more about the micro parts on a board. Upon taking it apart, I found some blown inductors (atleast...

The circuit in the picture is a chaotic generator formed from MOSFETs as opposed to op amps from the usual chaos generators. How does it all work exactly? Whilst I have knowledge of how MOSFETs work and such, the connections etc are hard to understand what they all do completely. In-depth...

An inductor of 10H has 1omh internal resistance. What is the current through the inductor after 10V is applied for 1 second?

Derive s11p and s12p

Hi, i have calculated the L and C value for filter circuit for Three phase inverter, now i would like to know the size and weight of the filter circuit for the L and C value i have calculated. Can anyone help me on how to do this ? Thank you. Raj

I'm sure I'm missing something very fundamental here, but I've built a boost circuit on a breadboard (see attached schematic) to convert 5v to 12v using an LM2577-adj. I want to power a 12v PC fan (rate at 12v at .06A) as the load. The LM2577 seems to work fine, as I'm measuring 12v. The fan...

Hey guys, so i've calculated that I need an inductance of 0.150mH for my inductor. However, I'm trying to figure out the number of turns I need for it. # I've got an answer of 24 turns but this doesn't feel right to me. Could someone double check my calculations? below is the datasheet for the...

It is been used as a ballast for a 120v UV Ligtht. It has only two cables, one cable is connected to power source and the other to one of the 4 prongs of the UV bulb. the second prong of the bulb is connected to power negative cable, the remaining two prongs of the bulb are connected to the...

Hi guys, decided to ask. maybe someone came across this, but I did not find how to identify a damaged element. In general, I need an element identification. since many manufacturers of SMD components it is very difficult to identify them without special expensive equipment. The circuit...

Need some insight about a plot found in the Fundamentals of power electronics second edition book. I don't really understand why it is written like this. Left side \( \frac{I}{V_{g}/R} \) can be rewritten to \( \frac{1}{D'^{2}} \) so it is basically "just" duty cycle. The book states that the...

Hi guys, I just found a great website that lets you easily calculate the parameters of a transformer or inductor, given the core parameters and material. I was trying to choose some suitable core to make a flyback for geiger counter, and this really came handy instead of doing a bunch of...