2answers

[Others] If it will affect conductivityof the circuit if the adhesive gets on any of the component leads?

Hello, I was about to purchase some heat shrink tubing when I noticed they come in plain as well as a dual wall type that has an adhesive/glue layer. My question is whether anyone has found issues wit...
  • answered Oct 29,2020
    by Gorge
3answers

[PCB Prototype] PCB machine features

I wanted to make single side and double sided pcb board. What are the features that I should look for in a pcb machine??like what brand to use, power consumption etc. Can anyone advice..!!
  • answered Oct 29,2020
    by Alex C
1answers

[Others] Should I connect isolated areas of ground pour?

As it shows, there are two isolated areas of the ground pour. I'm using Eagle, so when I do the pour it does not place in these type of areas unless I explicitly place a via where the bottom...
2answers

[Others] How to switch on a small load when a applied voltage is removed?

Hello guys, I need to turn on a small DC motor when a applied reference voltage is removed. Do you know a circuit diagram for this or any idea of doing this?
  • answered Oct 27,2020
    by Paul H
4answers

[Others] Queations about RC oscillators and LC oscillators.

Why RC oscillators are used for generating below 1MHz frequencies, and LC oscillators for above 1MHz freqs? Why cant we use RC for high freqs, and LC for low-medium freqs?
  • answered Oct 27,2020
    by Andrew
1answers

[Others] How to read a 5V ratiometric sensor using a 1.1V fixed vref ADC?

The ACS712 outputs a voltage from 0-5V and the ESP32 ADC reads from 0 to 3.3V using 1.1V as vref. There is a voltage divider already to reduce the 5V to 3.3 range.The problem is: voltage drops on the ...
1answers

[Others] "Output Frequency" on a DC switching power supply means the switching frequency of the power supply?

Hi all. The output frequency of this power supply is 20-100kHz. Since its DC out, which would be 0Hz, am I correct to assume that the 20-100kHz would be caused by the switching. So I could in theory u...
3answers

[PCB Prototype] hi ..do u have any Megasquirt MS2 bare pcb?

hi ..do u have any Megasquirt MS2 bare pcb?