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Electrical Engineering : Recent Questions and Answers (Page 13)

Find answers to your questions about Electrical Engineering or help others by answering their Electrical Engineering questions.

Modify Transformerless Power Supplies

Based on this article:https://hackaday.com/2017/04/04/the-shocking-truth-about-transformerless-power-supplies/ I have some rf wireless plug outless which use transformerless power supply. I would like to build in an ESP32 (3.3v) in...

Asked on 12/15/2021 by user213858

1 answer

Is there such a thing as an automatic variable resistor

I have a skid steer loader that in ISO eg driving straight forward with one joystick supplies on average 50 milliamps more power to the right forward solenoid coil than...

Asked on 12/15/2021

2 answer

Constant current source with bypass option

I need a current limiter for a project that I am working on. I understand that I can use a device like the LM317 in constant current mode, but how...

Asked on 12/15/2021 by David Cutting

2 answer

Automation - Stealing a signal from a circuit

I am a software designer (for reference). I struggle with electronics and signals. I have a device that has a microswitch that completes a circuit with a PCB. ...

Asked on 12/15/2021 by Craig Monyhan

1 answer

Clock usage in the always block and in the event

In general, if we are working on a sequential circuit, say a Flip Flop (e.g. D Flip Flop)The code we write for the always block part is: always...

Asked on 12/15/2021 by Animesh Srivastava

2 answer

Determining AXI4-stream Data FIFO size, understanding Packet Mode?

I want to take a standard AXI4-stream Data FIFO IP core and use it for data frame encapsulation for both the Ethernet and TCP/UDP layers. When packing a header onto...

Asked on 12/15/2021 by comc cmoc

1 answer

Standards Compliant High DC Load Safety Interlock System

I have a single AC-DC supply (42V @ 600W) which supplies three motive loads. Each motive load is physically separate and has its own cover which prevents the operator from...

Asked on 12/15/2021 by buttercup

0 answer

Button short press and long press without using microcontroller

I have a single button system for which I want to detect the short press and long press of the button. The task is really easy with a microcontroller, but...

Asked on 12/15/2021 by spockshr

2 answer

Difference between LVDS SerDes and FPD-Link III SerDes?

I'm new to the world of video interfaces and am working on a project in which parallelized video stream data is transmitted and subsequently received by processing components on the...

Asked on 12/15/2021 by stephbadger

1 answer

read negative voltage with mcp3008

how can i read a negative voltage by the mcp3008 ?, i tried to do that with this code but i...

Asked on 12/15/2021

1 answer

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