MEP EP#236: Excited Electrons

English - August 05, 2020 22:06 - 1 hour - 82.4 MB - ★★★★★ - 34 ratings
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Lead Forming Topic

Tools
3D printed forms
Best practices?

Cat Feeder Unreminder

Choosing a solar panel

Solar Panels generally act like a current source across its useable power band

Specifications that are important

Power (Watts) - Max
Current @ Peak Power
Voltage @ maximum power point (Vmpp)
Vmpp - Voltage @ open circuit (Voc)

AEM10941 Solar Panel Chip

Max V is 5V so open circuit can’t be higher then this
MPP is set by 2 configuration pins
Ratio between Vmpp / Voc

Stephen

Voltage References and dev boards

0.1% initial Accuracy
Low noise
worst case 50ppm across -40 to +125
Capable of sinking and sourcing 20mA

0.3% initial accuracy for the J version. The K version is 0.1%

Linear rail is shitty

Got 300 mm of knock off chineasium linear rail
Sounds like sand in the bearings
Held vertically the blocks get stuck…