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1.1k posts
 
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+16 −0
Q&A Rules and guidelines for drawing schematics?

A schematic is a visual representation of a circuit. As such, its purpose is to communicate a circuit to someone else. A schematic in a special computer program for that purpose is also a machi...

posted 3y ago by Olin Lathrop‭  ·  edited 1y ago by Olin Lathrop‭

Answer
89%
+15 −0
Meta Welcome to Electrical Engineering!

Welcome to the Codidact site for Electrical Engineering! We're glad you're here and we're excited to see what you will build. This community is starting "from scratch", without importing Q&A ...

1 answer  ·  posted 4y ago by Monica Cellio‭  ·  last activity 4y ago by spehro‭

Question announcements
88%
+14 −0
Q&A Is ESD overhyped?

Yes, damage due to ESD (electro-static discharge) is real. Just because you haven't seen it isn't much evidence of anything. Some obvious possibilities why you haven't observed the problem are: Y...

posted 3y ago by Olin Lathrop‭

Answer
88%
+13 −0
Q&A What is a bootloader, and how would I develop one?

I've heard that a bootloader is code that runs on a microcontroller, and is used to get your application code onto the micro. How does that work? Is there anything special that needs to be done to...

1 answer  ·  posted 3y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

88%
+13 −0
Q&A How to calculate pullup resistor value for pushbutton?

To understand this issue, we have to look at how your circuit works and what the pullup does within it. You have a pushbutton you want to read with a microcontroller. The pushbutton is a momentary...

posted 4y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

Answer
88%
+13 −0
Meta How can we grow this community?

Another thing that would be helpful is to get the existing users to participate more. Upvote good questions when you see them! For example, the question "208VAC triple-phase to single-phase conve...

posted 2y ago by Olin Lathrop‭

Answer
87%
+12 −0
Meta How can we grow this community?

Codidact's communities have a lot of great content that is helping people on the Internet. Our communities are small, though, and sustainable communities depend on having lots of active, engaged p...

10 answers  ·  posted 2y ago by Monica Cellio‭  ·  last activity 4mo ago by Peter Mortensen‭

86%
+11 −0
Q&A 208VAC triple-phase to single-phase conversion

The question: Is there a way to convert from triple-phase 208VAC to single-phase 208VAC? Background: Hi everyone, I am stuck on a project I'm working on. I'd like to convert 208VAC (three phase,...

2 answers  ·  posted 2y ago by cosined‭  ·  last activity 2y ago by Andy aka‭

Question transformer
86%
+11 −0
Q&A What is a bootloader, and how would I develop one?

Bootloader definition A bootloader is a program that runs in the microcontroller to be programmed. It receives new program information externally via some communication means, like a serial port, ...

posted 3y ago by Olin Lathrop‭

Answer
86%
+11 −0
Q&A How do I design a flyback converter? What are the basics I should know?

Equivalent Circuit, 1:1 transformer Start by simplifying the circuit and change the transformer to a single inductor. This simplification ignores the benefits of isolation but, flyback converter t...

posted 3y ago by Andy aka‭  ·  edited 2y ago by Andy aka‭

Answer
85%
+10 −0
Meta What is the added value - still unclear

This site grew out of frustration with how SE was managing their sites, seemed to value clicks over quality, and lost appreciation for those providing the content that the clicks came to get. This ...

posted 3y ago by Olin Lathrop‭

Answer
85%
+10 −0
Q&A How to calculate pullup resistor value for pushbutton?

What value pullup resistor should I use for a pushbutton connected to a microcontroller input? I've seen values from 1 kΩ to over 100 kΩ. Some references just say to use 10 kΩ because it's a "goo...

2 answers  ·  posted 4y ago by Olin Lathrop‭  ·  last activity 3y ago by Circuit fantasist‭

Question pull-up-resistor
85%
+10 −0
Q&A Rules and guidelines for drawing schematics?

We see schematics of varying quality and conventions. What is good and bad? What are the rules and conventions for drawing good schematics? What matters? What doesn't? This question is about sch...

1 answer  ·  posted 3y ago by Olin Lathrop‭  ·  last activity 1y ago by Olin Lathrop‭

Question schematic
85%
+10 −0
Q&A Is ESD overhyped?

Real life example. The machine shop of the company where I work has HAAS VF2 milling centers. At 3.5 tons, you'd figure a big enough to warrant some care and respect. The favored method of data tr...

posted 3y ago by Pete W‭

Answer
85%
+10 −0
Q&A Why 3.3V instead of 3V?

Usual values used in doing electronics/power supplies are almost always round numbers: 5V 12V 28V 48V 60V I understand that in some cases ICs are built to accept the voltage directly comi...

4 answers  ·  posted 3y ago by 2kind‭  ·  last activity 7mo ago by TonyStewart‭

84%
+9 −0
Q&A Why do DC/DC switching controllers seem to favour the buck-boost topology over similar ones like Cuk, SEPIC and Zeta?

I am looking at various DC/DC converter topologies for a power system I am designing. The most suitable topology for me is one that can perform both step-up and step-down functions, so I am looking...

2 answers  ·  posted 3y ago by Mu3‭  ·  edited 7mo ago by Lorenzo Donati‭

84%
+9 −0
Q&A Flyback transformer with Intrinsic Safety

I have no experience designing for Intrinsic Safety (IS), but need to do that now. I have read thru IEC 60079-11, which seems to be the relevant standard for my purposes. The board I need to desi...

4 answers  ·  posted 2y ago by Olin Lathrop‭  ·  last activity 8mo ago by Lorenzo Donati‭

83%
+8 −0
Meta How to treat data communication questions?

This question here about the OSI model was closed as off-topic. How should we treat questions about data communication? What is definitely on-topic here: Embedded systems programming, including...

3 answers  ·  posted 2y ago by Lundin‭  ·  last activity 2y ago by Olin Lathrop‭

Question discussion scope
83%
+8 −0
Q&A How long does it take for energy to propagate in a circuit?

The premise In a recent video by the pop-sci channel Veritasium, the concept of the flow of electricity and energy transmission in a circuit was discussed. In that video a thought experiment is pr...

5 answers  ·  posted 2y ago by Mu3‭  ·  last activity 2y ago by coquelicot‭

Question power DC
83%
+8 −0
Meta How can we grow this community?

I am a little late to the discussion, but I think I can provide yet another perspective. I found my way to this community via searching advice on improving my schematic clarity and found Olin's $...

posted 2y ago by DSI‭

Answer
83%
+8 −0
Meta Still getting downvotes - what are you guys doing about it?

I am sorry for the aggravation. Clearly we're going to need to bump up the priority of voting-fraud mitigation. We've taken action against the user (yes, as you suspected, one user) and the votes...

posted 2y ago by Monica Cellio‭  ·  edited 2y ago by Monica Cellio‭

Answer
83%
+8 −0
Q&A Technique to reset pulse transformer core quickly

I am analysing a pulse transformer which is required to transfer below communication protocol pulse from primary to the secondary side. The pulse duration is 32 μs and off time available to reset t...

2 answers  ·  posted 1y ago by kadamrohan16‭  ·  edited 7mo ago by Lorenzo Donati‭

83%
+8 −0
Q&A 3+3 doesn’t show 6

For the benefit of later readers, I thought I would explain why the original circuit "didn't work" and how exactly the "correct" circuit differs from the original circuit. The issue is the 3-input...

posted 2y ago by Elliot Alderson‭

Answer