Questions tagged [electronics]
41 questions
3
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1 answer
USB sound on PC when plugging laptop charger into the socket
Sometimes I hear my PC making the USB - connected device sound when I plug in my laptop charger into the socket.
By USB connected device I mean the sound that it usually makes when I connect something through the USB port.
I am not exactly sure what…
AWanderingMind
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2
votes
1 answer
Power Electronics Project
Can I use 220-12v,1.5 Amps Stepdown transformer along with 12V 2A (KBP200) bridge rectifier to build a charger for 12v, 7.5AH battery or I should use transformer with Higher output, maybe 15V
opeolluwa
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2
votes
1 answer
Unknown circuit component with glass encapsulated contacts
This is an unsoldered circuit component that had two metal pieces that weren't making contact inside a thin glass tube. What is this? I haven't seen anything like it before.
Steve
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2
votes
2 answers
Embedded C Programming
I am currently a project intern, working on Light Fidelity (Li-Fi). Most part of the project deals with development of software for Renesas Micro controller.
I have a simple doubt regarding timer and interrupt programming.
As a part of my project, I…
1
vote
0 answers
How to make a 3-bit full adder using only half adders
I've been trying to solve this question but I don't know the right answer.
akhil Kumar
- 11
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1
vote
0 answers
Control torque/rpm impact driver Milwaukee M18 CBLID
First off I want to say that I'm a beginner in electronics so I may be wrong in any of my statements.
So, I got this Milwaukee M18 CBLID impact driver and I was thinking on updating to the new fuel series because it have a speed control such as this…
SaFteiNZz
- 111
- 3
1
vote
1 answer
Why wouldn't grounding before a load in DC circuitry affect it?
Considering that the ground is a a real and connected to earth ground, if the electrons have a low resistance path to it from the negative pole, why would the circuity still work? Maybe you could consider that the source of the voltage is a low…
HighlightXII
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1
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1 answer
Electrical potential and grounding in a circuity, why it works?
I thought I understood the ground concept but now I'm a lot confused.
From: Pg.67 Practical Electronics for Inventors - Scherz Paul
As it's explained in the book, the first circuity is the one that's dangerous if someone would put a hand on the…
HighlightXII
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1
vote
0 answers
Problem with relationship between shunt resistance and grain boundaries in a solar cell
Here is the correct answer from another stack website.
The higher shunt resistance means that higher the
polycrystalline lattice irregularity and many grain boundaries. This
means higher current resistance and thus less current output, so
efficiency…
PhysicsSolvesAll
- 61
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1
vote
2 answers
How is the YAW angle calculated by an IMU sensor?
Say a body rotates by 90 degrees, then the yaw angle will be 90 which can be calculated using the data provided by IMU.
Now from that point, the body traverses some distance and is again rotated by 90 degree in the same direction. What will be yaw…
Alphanerd
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1
vote
1 answer
How to control the current while using "DC-DC XL6009 Adjustable Boost Step-up Power Converter Module Replace LM2577" in a circuit?
I want to power my WiFi modem with my powerbank and the modem's requirements is DC 12V-1A. But my Powerbank has DC 5V-2A that is why I will use a step up converter but how about the Amperes, how can I decrease it to 1A?
We have a terrible electric…
Kyle
- 11
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1
vote
0 answers
(Mechanics/Electronics) Anybody know DTC code for asking Air flow measurement on OBD2?
(Sorry if there's a better place for this. It's my first question)
I'm doing a final work for a Bachelor in Electronics and my work consists in making a fuel meter for a car. Its connected via OBD2 port using CAN protocol.
My problem is i can't seem…
Nicolás Ribeiro
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1
vote
1 answer
Is it still a bad idea to keep modern electronics plugged into the charger cable for longer than necessary?
I have an "DaVinci IQ" portable vaporizer. Since the battery quickly runs out of power, I often keep it lying next to me, plugging from the computer into its USB-to-Mini-USB (or maybe it's Micro-USB -- unsure about that detail), often beyond the…
electrolux
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1
vote
1 answer
What's the function of those coils there?
What do they do?
The aux contacts are normally open and the device is MR PQM 500 reactive power compensation system.
storgt2
- 25
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1
vote
2 answers
PC Controllable DC Power supply (0-30V)
I have a Proportional solenoid valve that uses a 0-30VDC for control (opening the orifice) I only have capability to provide 0-5V or 0-10V. I need to control the valve using my PC. Is there any DC Power supply device that I can control using PC to…
ZenMaster
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