Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I’m a newbie (almost, learned some basic coding using winavr couple of years ago, from youtube channel of ‘Patrickhood D.’, forgot most,). Now I want to start over again from the very basic. I want to use ‘Microchip studio’/ ‘Atmel studio’, AVRISP MK2, AVR MCU’s (like Atmega, AtTiny series).
I...
Thanks for ur help.
My goal is to measure and display (on an LCD display) the input, output (voltage, current, watt) and efficiency of the smps in realtime (& continuously) using MCU. Using an oscilloscope is not an option in this case. Can u pls suggest any other way for my case?
In a smps the mcu (at secondary side) for measuring various things (including voltage and current at primary side as well as secondary output). I’m using EL817 optocoupler to transfer info of primary to secondary. But the output of the optocoupler is not linearly dependent on its input. How do I...
I build a circuit with LM2596HV-adj (smd IC). mounted it on a small heat sink. Input 37v dc input cap 100uf, output variable from 1.25v to 15v dc, output cap 220uf +330uf, inductor 100uh (toroidal). I used 2 flyback diodes (fast diode), one across output one between output pin and input pin of...
I bought a power supply adopter (old, used, made for some device) of 24v 4.5A (from 230vac mains). It is a fixed output psu. My intention is to make it a variable psu of 30v to <=5v (as low as possible, and continuously variable). Schematic (simplified) of its error-amp circuitry is attached...
Dear all
I've a bunch of D965 and want to use in various hobby circuits.
While designing I use Ltspice simulation to get idea of the circuit's behavior at different conditions.
Unfortunately I don't have spice model of D965 to use in Ltspice.
I searched through google- with no luck!
Can...
I tried to understand PFC in an SMPS voltage converter. I read from many websites but still confused very much about the following things.
Situation: it’s an SMPS flyback (for example) converter, to output (for example) 24v dc to an inductive load of 100W (average). Input 230v AC mains 50Hz...
I got a damaged ATX PSU with primary transistors (13007) blown. When opened to repair I found that it doesn’t have EMI filter (markings present on pcb). I decided to include one and designed as attached pic.
As not an expert I’m not sure about the required values of X caps and inductors. The...
I did the calculation that way (with different values of AT from the curve. Ms excel helped to find T (using goal seek tool).
But still I don't know the power capacity, can it handle power conversation from 24v to 12v 3A (for example) at a given frequency.
this confuses me! as A.T & nH/T2 both are dependent on each-other how to calculate T? without AL value I wont find T, after getting T I find A.T which affects AL and again the calculation loop continues (what am i missing!).
For example: a 3A smps buck circuit need 100uH inductor. what should...
I’ve some toroidal inductor cores of different types (iron powder, ferrite, MPP).
I want to make inductor/ transformer for SMPS.
To do this I need to know/calculate the max power capacity of the core, max current before saturation.
Searched internet, ended with many different methods/ formulas...
Thanks for understanding this, which I mentioned in both lines of my post.
In most schematics if you change one (frequency / duty%) the other gets affected (as far I understand (which is very little)).
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