Hello guys, so i have an electric sit stand desk and it stopped working a while ago, i opened up the control box model TC15L from TI motion, and saw the IC in the pictures was fried so much so that it was impossible to read the part number off of the IC. Upon touching this IC, it blew away like...
Hi all,
I really hope you guys can help resolve this mystery. Thanks in advance for your consideration.
Recently, my microwave/oven combination (Etna CM751ZT/E01) stopped working. As the display wouldn't even turn on, I opened it up to check for any faulty fuses or thermal cutoffs.
I did...
Hello everyone,
I de-soldered a 24-pin IC from an old Uninterrupted Power Supply's board.
However, I haven't been able to find a datasheet or even information about the manufacturer on the almighty internet so far.
Here's what I've been able to find out from looking at it closely:
What I...
Hey everyone, I'm working on making a custom headlamp for myself and want to have dimming functionality without using a microcontroller. I came across the IC FM2819 (data sheet attached) which has the characteristics I'm looking for, but it isn't available for purchase on DigiKey, Mouser, or the...
Hi,
I’m building a test bench for some aircraft instruments and I was testing a Bendix 1964771-3 inverter(24 VDC) brought from eBay. The inverter should have outputs of 129VAC @ 370Hz @ 12VAC/18VAC @ 1110 Hz. The inverter was marked as untested but removed working from an aircraft I was told...
Here is my Hardware Interlock Circuit for Gate Signals which prevents both PWM Signals to be at same state at any given time. Here I want to reduce this two AND Gate IC's into a Single AND Gate IC.
Or Is there any other way to implement the Hardware Interlock for Gate Signals ?
Is there any...
What are the ways to test a switching IC TOP266EG with a multimeter?
I want to check it if it is damaged or not.
Link to the datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/663154/POWERINT/TOP266EG.html
Here is the DATASHEET picture:
Here is the appearence of IC:
Hi, I want to simulate the product in the link in a spice program, but there is no spice file provided by the manufacturer. How can I simulate the functions of this product in a program like LTspice?
- Product : https://www.nxp.com/part/MCZ33810EK#/
- Datasheet ...
I'm trying to understand how to drive the MOSFET's in the two-switch forward, I designed a 200W DC-DC converter, 50V input 100V output but I was looking for using an MCU and IC in this case I have an IR2110 high side low side for the gate drive, I don't know if it is possible to use it? and if...
Hi readers,
Hairdryers (240V AC) actually works on a design which current passes through the heating filament (Maybe consume 220V) to produce a lot of heat whereas through the DC motor (Maybe consume 20V).
I have always been curious about this
Question: Hair dryer has an option of choosing the...
Hello all,
This is my first post so forgive me if I break any rules, I am trying to create a variable voltage power supply using an lm317 but am running into problems. For starters, it doesn't seem that I have a vref voltage, when probed I get 0 volts across input and adjust. My second problem...
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, I need some help connecting an 8 pin current mode PWM controller to my boost converter circuit. Specifically this one. I have used controller IC's with integrated switches to make boost converters before, however, the amount of power I need to run through the circuit requires an external...
Received feedback that these parts are mysteriously over-heating when sent certain commands.
When switched out with comparable parts in stock> No over-heating occured
.
Curious if this is impacting other users of this part or not.
Is it a sign that this part could be counterfeit?
Is there a bad...
Hello,
I would like your suggestion on my first design Differential signal modulator [simulation attached].
Before jumping into design let me highlight my objective. I am differentiating a control signal of 1MHz and then modulating it with carrier frequency 15MHz(not limited to this specific...
Hello everyone.
I came across while reading the opto-isolator technique used for electric isolation in embedded systems/ Integrated Circuits design that " Opto-isolator is not recommended for electric isolation in power applications IC's mainly due to its dV/dt sensitivity". So I would like to...
So i'm currently trying to take parts out of a Bluetooth speaker's circuit-board and find the Bluetooth module for a DIY project.
I looked at the board and some ICs and tried looking them up to no avail.
So How Do you read an IC or any other components on the board Or even find a schismatic...
Hello,
I am modulating control signal with Multivibrator circuit in CMOS technology. I use this formula (1/2.2RC) to find the frequency of modulated signal with multivibrator. But my simulation (result) and theoritical (calculation) of frequency is not matching. I am using CADENCE software tool...