Electronics Design

Media players

Canvasing the sorts of offerings available, it is amusing (?) to note the assumptions that seem to be baked into each d...

27 comments posted 3yrs

posted by blockedofcourse

27 comments posted 3yrs posted by blockedofcourse

Woods Hole Developed Acoustic Sea Buoys To Protect Marine Life

This is no small feat, there's no end to interference and environmental challenges getting anything to work in the ocea...

2 comments posted 3yrs

posted by bloggs.fredbloggs.fred

2 comments posted 3yrs posted by bloggs.fredbloggs.fred

Another Wind Power Technology Being Installed On Tankers And Container Ships

All these technologies are 10x more effective than conventional sails and result in 30% fuel savings. This one just got...

17 comments posted 3yrs

posted by bloggs.fredbloggs.fred

17 comments posted 3yrs posted by bloggs.fredbloggs.fred

anemometer

...

26 comments posted 3yrs

posted by jlarkin

26 comments posted 3yrs posted by jlarkin

$50 million contract for a next-generation processor for use in space has been awarded to Microchip Technology

$50 million contract for a next-generation processor for use in space has been awarded to Microchip Technology https://w...

4 comments posted 3yrs

posted by pNaonStpealmtje

4 comments posted 3yrs posted by pNaonStpealmtje

LTspice tapped inductor

I have an inductor wound on some 22mm plastic pipe, so essentially air-cored. It's over 120 turns, 700mm long and uses...

18 comments posted 4yrs

posted by clive

18 comments posted 4yrs posted by clive

Direct digital synthesis of square waves

It strikes me that John Larkin's original idea of synthesising trapezoids can be made to work. You would still use a fa...

95 comments posted 4yrs

posted by bill.sloman

95 comments posted 4yrs posted by bill.sloman

DDS clock generator in LT Spice

https://www.dropbox.com/s/1xx7sz1e5rg6jsi/JLDDS_100M_4K.jpg?raw=1 https://www.dropbox.com/s/3859sc4qayv3jva/JLDDS_100M_...

1 comments posted 4yrs

posted by jjlarkin

1 comments posted 4yrs posted by jjlarkin

strange LT Spice s/h behavior

I figured that I could bootstrap an LT Spice sample/hold to make a stairstep waveform. Without the RC, the output jumps...

13 comments posted 4yrs

posted by jjlarkin

13 comments posted 4yrs posted by jjlarkin

ot optics question for Phil

What's a good way to measure the negative diopter of my glasses, given minimal tools up the the cabin? I can let the su...

31 comments posted 4yrs

posted by jjlarkin

31 comments posted 4yrs posted by jjlarkin

Solid caps can blow up?

I didn't know solid caps could break. This one shorted the 12V line on a graphics card, unfortunately I have a 2.5kW su...

91 comments posted 4yrs

posted by CK1

91 comments posted 4yrs posted by CK1

DDS questions

To make a programmable-frequency clock, the usual DDS chip has A frequency-set register, N=32 or 48 bits or something w...

109 comments posted 4yrs

posted by jjlarkin

109 comments posted 4yrs posted by jjlarkin

block/ignore

Just discovered that I can in fact block/ignore a poster in this group - it's in tools..

22 comments posted 4yrs

posted by kraken.sankey

22 comments posted 4yrs posted by kraken.sankey

pad-to-pad capacitance

Two part question (my google skills have failed me for both): 1. Does anyone know approximate pad-to-pad capacitance fo...

8 comments posted 4yrs

posted by danluster81

8 comments posted 4yrs posted by danluster81

6 bit things

Is a byte always 8 bits? What can I call a 6-bit byte? A clump? I want to send data over an SFP optical link, in 6-bit...

65 comments posted 4yrs

posted by jlarkin

65 comments posted 4yrs posted by jlarkin