/sci/ - Science & Math » Thread #12678813

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Anonymous Sun 07 Feb 19:52:47 2021 No.12678813 View Reply Original Report

Quoted By: >>12678919 >>12679792 >>12680821 >>12681169 >>12681176

You should be able to figure this one out

Anonymous

Anonymous Sun 07 Feb 2021 19:57:51 No.12678834 Report

Quoted By: >>12680273

repost from /g/.
as retarded as the circuit is, the protection diode is to prevent loading the polarized cap backwards.
the purpose of the cap isn't obvious from the schematic. the designer could have wanted the led to fade after the switch is disconnected.

Anonymous

Anonymous Sun 07 Feb 2021 20:19:03 No.12678919 Report

Quoted By:

>>12678813
Yeah I don't think connecting those electrical components using a drawn black line in MSPaint is going to work, you'll need a real wire...

Anonymous

Anonymous Mon 08 Feb 2021 01:01:31 No.12679792 Report

Quoted By:

>>12678813
Umm RC circuit with a load? Forgot how to calculate the time constant. Judging by the capacitance, however, would it result in a frequency that would visibly modulate the LED?

Anonymous

Anonymous Mon 08 Feb 2021 03:31:19 No.12680273 Report

Quoted By:

>>12678834
It could also be used to compare the power-consumption of different LEDs: Even one typical of what goes into a string of Christmas lights would probably take more than a minute to discharge a capacitor that size.

Anonymous

Anonymous Mon 08 Feb 2021 07:29:57 No.12680821 Report

Quoted By: >>12680824

>>12678813
the LED lights with a ramp output and then stays on

Anonymous

Anonymous Mon 08 Feb 2021 07:33:17 No.12680824 Report

Quoted By:

>>12680821
there is no resistor between the battery and cap, so the only thing really limiting the current in the circuit is the internal battery resistance. the charge time is probably extremely fast. it's the discharge of the cap when the switch is opened that takes a long time

Anonymous

Anonymous Mon 08 Feb 2021 10:41:01 No.12681169 Report

Quoted By: >>12681171

>>12678813
why is this a thread?
why is /sci/ this embarrassing?

Anonymous

Anonymous Mon 08 Feb 2021 10:42:08 No.12681171 Report

Quoted By: >>12681184

>>12681169
why did you bump this thread instead of replying to one of value?

Anonymous

Anonymous Mon 08 Feb 2021 10:45:22 No.12681176 Report

Quoted By:

>>12678813
tao = RC, meaning you'd have t = 0,47.
Condensators take 4 taos to charge and the light would blink every 2 seconds for a fraction of a second. Don't know did this like 2 years ago.

Anonymous

Anonymous Mon 08 Feb 2021 10:46:06 No.12681184 Report

Quoted By: >>12681189

>>12681171
because I recognize the same writing style of the same OP and make it a religion to point out his every gay moment for the archives.

Anonymous

Anonymous Mon 08 Feb 2021 10:49:16 No.12681189 Report

Quoted By: >>12681201

>>12681184
use sage in option field next time

Anonymous

Anonymous Mon 08 Feb 2021 10:53:17 No.12681201 Report

Quoted By:

>>12681189
>use sage in option field next time
check

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