Questions tagged [dc]
DC stands for Direct Current, which means the flow of electric charge in a single direction. Examples of a DC source are batteries, solar panels, and dynamos.
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SPDT with high amps
I have 3 DC power supplies that can each supply 320 W. Input to these power supplies comes from AC wall power and is gated by an on / off switch.
I have 2 different loads:
DC 35 V, 22 A
DC 35 V, 17 A
...
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Tracker Accessory wiring [migrated]
I have installed a tracker into my excavator,
the tracker has power, oil pump and accessory wires.
The excavator has a negative isolation switch.
I have connected the power wires directly to the ...
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Relay controlling DC motor welding shut
I am controlling a fairly large DC motor using a relay. The motor draws approximately 7A at 36V. I am controlling it with a relay rated at 110VDC, 50A. To protect against back-EMF, I placed a ...
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DC bias vs AC voltage change rate on MLCC capacitors
I'm looking at this 10uF X5R ceramic MLCC capacitor.
I know that ceramic capacitors which aren't C0G have an significant variation of their value depending on voltage, temperature, aging, and ...
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Off Grid Without Battery Inverter [closed]
Respected Members,
In My Country Pakistan hundreds of peoples selling off grid inverters that are working without battery. But I am not sure whether it is safe or not? because solar production is not ...
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Finding the correct power input for a battery pack powered device [closed]
I want to find the correct input voltage and current a device needs so that I can replace its battery pack with wired DC power. I suspect it's what it says on the device itself and not on the battery ...
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I'm getting 60-130V of output from a 5V voltage regulator. Does anyone know what went wrong?
I made a 5V power supply, but when I connected my multimeter probes to the output lines of the supply it read 60-130V. the voltage after the rectifier should be around 18-19V. If anyone can give a ...
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How should I come up with a power supply for 5 motors, one micro-controller (ESP32) and one microprocessor (Jetson Nano) for an object sorting arm
I am trying to design a power supply for a robotic arm with 5 servo motors(2 are MG90S and 3 1501MG motors). I'm planning to use an ESP32 microcontroller and Jetson Nano.
I have the option of using ...
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Transformer with same size symbol meaning
I Know these symbols mean a transformer step up or down:
But what does this one represent since it has the same size on both sides?
Part above taken from this schematic:
And this also has me ...
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Can one connect 2 or more DC motors of same or different excitations in series or parallel combination,and how does it work [closed]
I am trying to understand DC motors,but i had this doubt throughout the machines course. .How does speed and torques and speed gets affected(major query)
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18 V AC to 5 V DC circuit design with battery
I’ll start by saying I have little understanding of electronic circuits. I have an old door phone to which I have connected a wireless switch in order to be able to open my door with a remote control. ...
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Analysing 42v to 3.3v DC converter circuit & component identification
I'm analysing a circuit responsible for generating 3.3v for a stm32f103c8t6 on a battery management system(10s). Its a completely proprietary battery management system with nothing online about it so ...
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Will I die or get a decent shock using an inverter?
I want to know if I can get shocked if I have the following setup?
From my understanding, because the inverter (let's say a small 300W) is considered a "standalone" AC source and not ...
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Reattaching DC power adapter jack to PCB
Recently, my baby monitor stopped charging - that is to say, when I inserted the DC power cord, I had to wiggle the plug about in the socket a bit to get in to start charging and even then it was ...
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How to perform multiplication operation between two source voltages?
Based on this multiplication relationship table.
VIN_A
VIN_B
VOUT
-1
-1
1
-1
-0.5
0.5
-1
0
0
-1
1
-1
-0.5
-1
0.5
-0.5
-0.5
0.25
-0.5
0
0
-0.5
1
-0.5
0
-1
0
0
-0.5
0
0
0
0
0
1
0
1
-1
-1
...
