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MEP EP#240: Disturbed Solder Accuracy
Manage episode 271041992 series 120573
Content provided by MacroFab, Inc.. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by MacroFab, Inc. or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
MEP EP#240: Disturbed Solder Accuracy
Parker
- Got a fully automatic screen printer!
- ESE US-2000X
- Potentially lower our minimal paste size
- Twitch Live Stream podcasts?
- Amazon multimeter probes
Stephen
- High voltage low current measurement
- Don't want to break the connection so a traditional ammeter isn't going to work
- Sticking with the read both sides of a resistor method
- Caddock 1776-C681 high voltage high resistance high tolerance divider
- 1/100 so 0 to 500v becomes 0 to 5v
- ADC - MCP3551-E/SN
- 22 bit
- SPI
- 2.4 meg ohm input impedance
- Ideally the voltage divider has a “gain” of 0.01 but if the ADC is directly attached to the divider the gain is around 0.0096
- Full scale would be 4.8V instead of 5V
- Solution: add a buffer
- AD8244BRMZ
- Quad buffer
- Typical offset voltage of 100uV
- Gain error of 0.03% max on +/-15v rails
- 10T ohm and 4pf input resistance/capacitance - 10^12
- Gain error is now 0.009999999901 - Close enough
448 episodes
Share
Manage episode 271041992 series 120573
Content provided by MacroFab, Inc.. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by MacroFab, Inc. or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
MEP EP#240: Disturbed Solder Accuracy
Parker
- Got a fully automatic screen printer!
- ESE US-2000X
- Potentially lower our minimal paste size
- Twitch Live Stream podcasts?
- Amazon multimeter probes
Stephen
- High voltage low current measurement
- Don't want to break the connection so a traditional ammeter isn't going to work
- Sticking with the read both sides of a resistor method
- Caddock 1776-C681 high voltage high resistance high tolerance divider
- 1/100 so 0 to 500v becomes 0 to 5v
- ADC - MCP3551-E/SN
- 22 bit
- SPI
- 2.4 meg ohm input impedance
- Ideally the voltage divider has a “gain” of 0.01 but if the ADC is directly attached to the divider the gain is around 0.0096
- Full scale would be 4.8V instead of 5V
- Solution: add a buffer
- AD8244BRMZ
- Quad buffer
- Typical offset voltage of 100uV
- Gain error of 0.03% max on +/-15v rails
- 10T ohm and 4pf input resistance/capacitance - 10^12
- Gain error is now 0.009999999901 - Close enough
448 episodes
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Similar to Circuit Break - A MacroFab Podcast
Show notes are at https://stevelitchfield.com/sshow/chat.html
…
continue reading
Welcome to the Security Weekly Podcast Network, your all-in-one source for the latest in cybersecurity! This feed features a diverse lineup of shows, including Application Security Weekly, Business Security Weekly, Paul's Security Weekly, Enterprise Security Weekly, and Security Weekly News. Whether you're a cybersecurity professional, business leader, or tech enthusiast, we cover all angles of the cybersecurity landscape. Tune in for in-depth panel discussions, expert guest interviews, and ...
…
continue reading
Bitcoin pioneer Charlie Shrem peels back the layers on the lives and backgrounds of the world's most impactful innovators. Centering around intimate narratives, Shrem uncovers a detailed, previously unspoken story of the genesis and evolution of bitcoin, cryptocurrency, artificial intelligence, and the web3 movements. Join Shrem as he journeys through the uncharted territories of tech revolutions, revealing the human side of the stories that shaped the digital world we live in today.
…
continue reading
Three nerds discussing tech, Apple, programming, and loosely related matters.
…
continue reading
Welcome to Hands-On Tech, where host Mikah Sargent turns tech troubles into tech triumphs. Each episode zooms in on a specific theme, unpacking listener questions with expert analysis and easy-to-follow advice. From decoding the latest gadgets to simplifying everyday tech, Mikah's got you covered. Submit your tech queries through email at HOT@twit.tv or via TWiT's social media. You might hear your question answered on air! And keep an ear out for guest experts who drop by to share their spec ...
…
continue reading
Investor Shayle Kann is asking big questions about how to decarbonize the planet: How cheap can clean energy get? Will artificial intelligence speed up climate solutions? Where is the smart money going into climate technologies? Every week on Catalyst, Shayle explains the world of climate tech with prominent experts, investors, researchers, and executives. Produced by Latitude Media.
…
continue reading
Hanselminutes is Fresh Air for Developers. A weekly commute-time podcast that promotes fresh technology and fresh voices. Talk and Tech for Developers, Life-long Learners, and Technologists.
…
continue reading
Exploring React Native Together
…
continue reading
The American healthcare system is one of the most innovative in the world. But it’s also riddled with complex challenges, such as access to affordable medications, inefficiency and administrative burdens, and communication barriers between providers. There’s clearly a better way—and at Surescripts, we have a unique sightline into what that may be. In this series, host Melanie Marcus, Chief Marketing Officer of Surescripts, sits down with today’s most inspiring and innovative leaders in healt ...
…
continue reading
Discover a whole new take on Artificial Intelligence with Squirro's educational podcast! Join host Lauren Hawker Zafer, a top voice in Artificial Intelligence on LinkedIn, for insightful chats that unravel the fascinating world of tech innovation, use case exploration and AI knowledge. Dive into candid discussions with accomplished industry experts and established academics. With each episode, you'll expand your grasp of cutting-edge technologies and their incredible impact on society, and y ...
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