Questions tagged [power-consumption]
Power consumption is the actual energy demand made on an existing power supply (e.g. battery). Consumption of electric energy is measured in joule (J), but for practicality often watt-hours (Wh) are used.
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How to Measure Power Consumption on Extremely Low Power Devices?
This might be old news in a half a decade or two but by today's means, I am referring to electronic prototypes and designs which would draw in a μA (uA) and even nA range of current.
Some recent MCUs,...
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What is the best way to estimate the power consumption of an Atmega328p microcontroller?
I'm currently working with a barebone Atemga328p microcontroller implemented within a battery powered design. I've realized I'm pretty clueless on how microcontrollers are rated on power consumption.
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Power Consumption for BLE advertisements
I have a set of voltage readings that are read at a high rate and they have produced voltage data for power consumption while: advertising events, for connection events, and for no activity. I've ...
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How do you measure apparent power consumption of a transformer (primary coil) with no load on secondary?
Lets say 120 Volts at 60 Hz with a Transformer across it with 1 Henry as the primary and 1 Henry on the secondary. The secondary has no load and is an open circuit. How would I physically measure the ...
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ESP32 High Power Consumption in Deep Sleep Mode
I'm running a Python program on an ESP32 (MicroPython firmware) that fetches online data to save it locally every 5 hours, and then goes into deep sleep mode. The board is powered with a 3.7V lipo ...
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Piezo transducer current consumption
is there any way how theoretically determine the current consumption of ultrasound piezo transducer?
I only know impedance for res freq = 50 ohms and excitation voltage around -170 V.
Does the Ohms ...
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Opamp power consumption
Attached simulation of op-amp .
Q1) In Op-amp ckt 1 has power supply of 20V and In Op-amp ckt 2 has power supply of 15V (rest everything is same). How current consumption is more in 20V rather than ...
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I don't understand the text about LED's type and power consumption
On my web-surfing, I found some information about LED's type and power consumption.
I don't understand below (Red-lines.)
Why 'common cathode' power consumption is lower than 'common anode'?
Please ...
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Current consumption of a current transducer (LEM LA 55-P)
I have a question regarding a current consumption of a current transducer (LEM LA 55-P). In the current transducer datasheet it says that the current consumption at \$ \pm 15~\text{V} \$ is \$ I_c = ...
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Battery Run-time/capacity calculation
Problem is to find the difference in run-time between:
a. Using 12V 10Ah battery vs 24V 5Ah battery.
PS: Load is rated at 12VDC and 24V to 12V step-down conversion is available.
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Battery capacity calculation/method [closed]
While calculating battery power capacity requirement for a circuit consisting of multiple loads having different power consumption, how should one proceed to avoid any error? How it is done in ...
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