@cm0002@lemmy.world to Technology@lemmy.worldEnglish • 2 months agoCoin-sized nuclear 3V battery with 50-year lifespan enters mass productionwww.techspot.commessage-square30fedilinkarrow-up1114arrow-down17cross-posted to: technology@lemmy.ml
arrow-up1107arrow-down1external-linkCoin-sized nuclear 3V battery with 50-year lifespan enters mass productionwww.techspot.com@cm0002@lemmy.world to Technology@lemmy.worldEnglish • 2 months agomessage-square30fedilinkcross-posted to: technology@lemmy.ml
minus-square@mesamunefire@lemmy.worldlinkfedilinkEnglish1•2 months agoI wonder how much we really need for a clock (555 eq) to work?
minus-square@piecat@lemmy.worldlinkfedilinkEnglish3•2 months agohttps://www.ti.com/lit/gpn/LM555 2mA minimum, and that’s just q current. It’s gonna be much higher when you’re actually using it for a clock. I’m sure the casio’s main power sink is the display. I bet the refresh rate could be reduced for better battery life.
minus-square@Tangent5280@lemmy.worldlinkfedilinkEnglish6•2 months agoIsnt the refresh rate just 1 Hz?
minus-square@cubism_pitta@lemmy.worldlinkfedilinkEnglish1•edit-22 months agoA lot more than that. 2ma Analog circuits are weird though https://www.ti.com/lit/ds/symlink/ne555.pdf
I wonder how much we really need for a clock (555 eq) to work?
https://www.ti.com/lit/gpn/LM555
2mA minimum, and that’s just q current. It’s gonna be much higher when you’re actually using it for a clock.
I’m sure the casio’s main power sink is the display. I bet the refresh rate could be reduced for better battery life.
Isnt the refresh rate just 1 Hz?
Yep.
A lot more than that. 2ma
Analog circuits are weird though
https://www.ti.com/lit/ds/symlink/ne555.pdf