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In this type of device, current is a flow of electrons traveling through vacuum. …

For low resistance values it gets more complicated, thicker films are required, trimming is more difficult, and in a high current density scenario, the laser-cut shape concentrates the current into a small … Current sense resistors are used quite often, but in scenarios that don't require high accuracy, like in power supply, chargers, etc. …

If you use, say a 10cm length of cable as a shunt that's 35µOhm, with 500A current you get 17mV voltage drop. … You can also use a Hall current transducer or a clamp-on ammeter with a signal output. Then a peak detector and a multimeter. …

Short answer: A canister of butane/propane gas contains a lot more energy that batteries, is lighter, cheaper, etc. Use a gas cooking burner for camping. Long answer: Your inverter might not like s …

The maximum input current of the converter, or its current limit if it has one, may not be very accurate. It is often cheaper to have an inaccurate current limit, as long as that works as protection. … current limit before that. …

If TV does not reboot, then the speaker does have an inrush current or other mains borne EMI problem, or the outlet your TV is plugged in has high resistance, oxidized old wires and the like. …

Ghetto FLIR: Squirt some low boiling point liquid (like flux cleaner) on the board. See where it boils. https://www.youtube.com/watch?v=t5fICjcaJ3E#t=13m19

current equals load Not really, consider a motor for example, it isn't a resistor so it will draw reactive current. … If current and voltage are not in phase, you'll have more current that what you get by calculating I=P/V. There is also the power factor. …

The real question is: why the hell do you want to feed regulated DC to a motor?.... If it needs to be run at a constant RPM, use a PWM speed controller with a speed sensor. If it will overheat and …

Frequency depends on load current. After testing you might find out that using the deep sleep mode on your ESP cures this problem. …

WS2812B draws 50mA when fully on, with 24 of them, expect 1.2 Amps. PC USB ports are limited to 500 mA, so they're out. You'll have to use a "USB cellphone fast charger" which is really a 5V 2A power …

So the answer to your question is: you forgot to account for the voltage drop caused by the current in the wires, thus you got the wrong current. … dictates that actual current limit is always much higher than the safe current "limit". …

If current will only flow one way and the goal is only to protect against over-discharge of the battery, perhaps you can use only one MOSFET instead of two in series. …

Most LEDs have a pretty linear luminous intensity vs current curve at low currents, but lose efficiency at higher currents. … Now if you are interested in LED current, why not measure it directly in the circuit? …

It's a linear regulator so its output current is limited both by the size of the transistor inside the chip that actually passes the current, and by maximum thermal dissipation. … (LDO internal schematic from Diodes) If the regulator has a maximum current of 150mA and the ESP draws current above that, output voltage will drop, which is the normal and expected behavior. …