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Silicon has been the kingpin of the semiconductor industry for a long time. And it should be: it has an ideal crystal structure for use as a semiconductor, But in today's world where ultra-low power and an extremely small package are two important factors in electronics design, maybe silicon has sort of reached its limits. What's the alternative?   As a semiconductor material, gallium nitride (GaN) is getting the attention that silicon once had. GaN works will in high voltage and high temp ...
Greetings Best Community Members in the Galaxy!   It was a bank holiday in the UK last week, here in the States we have labor day coming up this Monday.  I've decided to take a couple of days to visit family so I will be gone from Friday till Wednesday of next week.  I'll try to post again next week as this experiment seems to be going good.  This week I put together a Checklist and Quickstart Guide on the On24 platform to present to suppliers for our Webinars  program. ...
Greetings Best Community Members in the Galaxy!   Here's this week's rundown on some of the exciting activities going on in and around the community.   Remote Monitoring & Control Winners Announcement!  This one was really fun and inspired some really great projects. The Winner of the Grand Prize of a $200 Shopping Cart:  sjmill01 for Big Petro Maker Magic: $100 Datalogger That Can Save Millions. The following members receive First Place Trophy Badges and a $100 shoppi ...
  Previous blogs:   Experimenting with MOSFETS: Total Gate Charge Experimenting with MOSFETs: Transfer Characteristic   Introduction   More experimenting with MOSFETs. In the last blog I looked at the transfer characteristics but it wasn't very easy to see from the graph I plotted where the threshold was. The threshold is measured at a drain current of 250uA and that is down in the noise for the current probe I was using. So this is a different approach to finding the ...
Greetings Best Community Members in the Galaxy!   Here's this week's rundown on some of the exciting activities going on in and around the community.   Community Member Judging for Remote Monitoring & Control   There were a lot of exciting projects in the  Remote Monitoring & Control  competition and its now time for you to choose the winners.  By volunteering to judge you help ensure that the winners of Remote Monitoring & Control reflect the diversit ...
This is a short follow-up to Experimenting with MOSFETS: Total Gate Charge where I looked at 'total gate charge' for an IRF730, an n-channel power MOSFET.   Since I still had the test board wired up, I thought it might be interesting to see if could get a quick plot of the transfer characteristic - the way that the drain current varies with gate voltage.   I've taken the previous circuit, bypassed the constant current generator in the drain and then plotted the drain current against ...
A weekly zine that covers the larger community but focuses on member oriented content throughout the community.   As there is a lot of activity happening on the community we will start with the members and move to other areas of interest to you.   Not limited to but including Project14 project competitions where You Decide the Next Monthly Project Competition! and help choose the Project 14 Topics;  Arduino , Arduino Projects , and Arduino Tutorials to help make projects acc ...
Greetings best community members in the galaxy!   Took a couple of days off last week so it didn't make sense to do a journal entry.  Now having been refreshed,  I am ready to commence with another edition of the weekly content journal.  Apologies if this runs a little longer than usual.  There's a reason we're trying to do this on weekly basis!    Upcoming Project Competition: Energy Harvesting!  The Energy Harvesting competition will launch on August ...
Introduction   More experimenting, this time with MOSFETs.   If you've ever designed with a MOSFET, I'm sure you've seen the kind of curves that are usually present in the datasheet showing the relationship between the total gate charge and the gate voltage. Here's one such graph from a datasheet for a Vishay IRF730 device:   They always have the same sort of shape to the curve, though the position of the plateau, halfway up, varies in both voltage and the amount of charge to ...

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