Questions tagged [load]
An electrical load is an electrical component or portion of a circuit that consumes electric power. This is opposed to a power source, such as a battery or generator, which produces power.
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Identify SOT23-6 smd marking code 169 324
This chip in electronic load DL24M, please help me identify it.
pin 4 it's out
and connected with pin 1 LM321 (on 4pcs lm321)
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Can you help me understand W=I*V - house load
So I'm trying to work out my daily Ah usage for an off-grid set up (and to see what my power bill at this new place might be like).
Context:
I've gone through and created a sheet with the appliances I ...
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Managing Solar Power, battery, and load for raspbery pi - designing power management system
So, I am working on a scientific instrument that measures air quality. It uses a raspberry pi with a couple of sensors. Essentially, this instrument is going to be deployed in an Urban area in a ...
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Grounding PV solar, battery and load
I have simple diy solution for solar system. The system is build using esp32, 2x ina266, ads1115 and acs758. The esp is powered from usb 5v (stepdown from battery) and 3v3 is then distributed into all ...
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50 ohm vs HiZ setting on function generator?
I got my first function generator today. The generator is a SDG1032X.
It gives you the option to switch between 50 Ω output and HiZ (high impedance) output by long pressing the output buttons.
It does ...
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Low-Side Driver Not Sourcing Current from Load to GND
I have a circuit with an electronic load in parallel with an optocoupler and a low-side N-channel MOSFET connected to the circuit. The low-side N-channel MOSFET driver is supposed to source current ...
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Load sharing effect on heat dissipation [closed]
In a circuit, when two ideal components are used in parallel instead of using just one (same component in both cases), does it have any effect on any of the temperature values? junction / case / ...
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Why do the number of valleys change when load is changed? [closed]
I am operating a flyback converter with 60V DC input and 6V DC output. The load connected across the output is 500mA. My mode of operation is DCM. If I have 4 valleys in the magnetizing ringing of Vds ...
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How does an AC of 5100W (1.5 ton) capacity work without any issue with 1000W of total electricity load of my house? [closed]
I have one AC of 5100W (1.5 ton) capacity and I generally run it along with other appliances like fans, LED bulbs, TV and more. My house is sanctioned ...
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Voltage drop of each load in the radial network
How do you find the voltage drop and external loop impedance of each lighting load in the picture attached?
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Controlling On/off of WL-134 Module with ESP32
I want to control on/off of WL-134 RFID module from GPIO of ESP32. WL-134 requires 9V, 140mA on its input so Basically I want to control 9V input from GPIO of ESP32 when I dont want to use RFID module....
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Driving a power MOSFET successfully
I have recently purchased this power MOSFET for a project (dump load resistor):
https://uk.rs-online.com/web/p/mosfets/6867852?gb=s
Alongside this I have bought a MOSFET driver see link:
https://uk.rs-...
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Voltage drop issues in LTspice simulation for buck converter using SW model
I have a LTspice design issue where I encounter the same problem, even when I use other available simulations.
Whenever I increase the load, there is a significant drop in voltage, despite having ...
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Diodes selection for High Side switch protection against inductive load
Hello I would like to design protection for HSD, BTS7200-2EPA against inductive load. Spec data for the inductive load is limited. But the PCB was designed for 2.5A peak, and approximate L and R_L ...
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How much current can I pull out of a battery
So I know an average PP3 9-volt battery has about 500mAh of capacity. If I wanted to, for example, draw 3.5 amps, the battery would last about 8 or 9 minutes, though that would be assuming the battery ...
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Where or How can I make AC adjustable load for 120? [duplicate]
The thing is that I want to test the efficiency of some DC-AC inverters but I have to use an adjustable load because the CEC or EU efficiency weighted calcs request to have the perfomance on 5%, 10%, ...
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Calculation of Load Impedance of three phase Inverter
Could anyone here please assist me how the Equivalent impedance of Load of three phase inverter is calculated from the Inverter parameters shown in below screenshot? This screenshot is tutorial ...
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Camera trigger driver circuit using Arduino to 2N7000 N-channel MOSFET - off behavior with 47 kΩ resistive load
I'm making a circuit to trigger several machine-vision cameras. Simply splitting the digital output pin of a microcontroller, e.g. an Arduino, works fine for a small number (<5) of the newer ...
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Estimating lithium-ion battery run time at different voltages
A polymer lithium battery in a powerbank (marketed as 30,000 mAh / 3.8 V, 114 Wh), has an actual electric capacity of 19,944 mAh, and an energy capacity of 104 Wh as measured with a constant load ...
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How can I sum the output of the two opamps and multiply the voltage swing to +2vcc and -vcc
I have a VtoI circuit that you can see in the figure below. According to this circuit, I can receive a maximum sin current of 4 mA with a maximum load of 5 kΩ. Considering that the supply voltage for ...
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Relay circuit for DC LED strips switch
Is this schematic OK for 24 V UVC light control via 5 VDC relay?
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Connecting multiple loads in self-balancing parallel [closed]
I have three (or 'n', where n=3 at the moment) large LED panels that I want to run in parallel.
As we know (or should have known before the 'royal we' actually tried it!), just wiring them together in ...
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High voltage pad buffer design with 2nF load and ringing on first stage output
I am trying to design a high voltage (12V) buffer that will drive a sine wave with rail-to-rail peak-to-peak amplitude and a big capacitive load, maybe 3nF.
Browsing I came upon this Master's project: ...
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Can one boost converter power three 5 W loads in parallel?
I want to power three 12 V/5 W light bulbs in parallel. I have a 3.7 V Li-po battery which has a discharge rate of 20 A. I have an LTC1871 boost converter. Is it possible for me to power the circuit ...
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Single-phase voltage inverter
I'm currently working on a single-phase voltage inverter with MOSFET transistors and RL load. I would like to realize width control of the inverter with independent frequency and program settings ...
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How can I make sure load draws the correct current?
I'm using the following boost converter topology to supply power to a vacuum fluorescent display. The PWM signal is 500kHz at a 80% duty cycle. I'm getting the 75V I need with some headroom to spare. ...
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Typical load examples for RL and RC series and parallel circuits
I have already learned theoretical description of RL and RC circuits and their behavior. But now with a benefit of hindsight I have never truly learned about typical real world loads that have similar ...
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Total Consumption Calculation for Multiple electric ovens
Regarding NEC Table 220.55, if I have 4 ovens at 9 kW each, since they do not exceed 12 kW, I should refer to column C. However, my question is:
Is it correct to consider 17 kW as the total ...
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Load Selector/Load Switch
Following the provided schematic, my goal is to design a circuit that can determine the direction of a Pulse signal based on a control signal (CTL). To achieve this, I am utilizing two pmos ...
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How higher load (high R) draws more current when the nature of resistance is to reduce/restrict the current?
Consider a voltage in a circuit(say 100 V) in a closed circuit, and a resistor 10 ohm and a Load of 20 ohm connected across it.
when you turn on the switch, current through them is almost 100/30 (3.33~...
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How to use the Load Line technique to intersect two dynamic electrical components?
I have an incandescent bulb in series with a battery and a constant voltage source (a charger), and would like to work out the current drawn for a given input voltage from a constant voltage source (...
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Can a generator with rated ouput 2.5kW handle 2 PCs rated 600W and 500W connected to two UPS rated 3000VA/1500W and 2000VA/1200W [closed]
I'm having issues with different answers from ChatGPT and Bard. I'm not an expert so I would appreciate an expert opinion.
I have a PC rated 600W connected to a UPS rated 2000VA/1200W with a power ...
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If the three-phase voltages are square waves, is there a neutral voltage in a balanced wye-wye configuration?
I am analyzing a wye-wye configuration circuit. Both the source and the load are balanced. The source is three-phase. Each phase is offset by 120 degrees. Neither the source nor the load is grounded.
...
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Why do we need admittance, susceptance and conductance?
What is the need for modelling circuits and transmission lines, and loads using variables stated above when we can use resistance in the real domain and reactance in the imaginary domain. Are not the ...
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Power supply oscillations when driving LEDs with microcontroller
I driving some LEDs at about 114 Hz with a power supply of 9 V and a max current supply of 150 mA, LEDs are running about 60 mA I have some LEDs in parallel. If I increase to 200 Hz it's the same, How ...
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Variable BLDC load
I need to test several BLDC motors and their ESCs, primarily to determine the motor's capability and power consumption, as well as the ESC's ability to drive the motor at higher current. Aside from ...
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Generators given in kVA but loads given in kW
If I have a generator at 13kVA 0.8 PF. It is capable of producing ~10.4kW.
I have a load of 10 kW but at a 0.7 PF and therefore consuming ~14.3 kVA.
What is the relationship here?
I thought this was ...
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Miller effect in CMOS inverter
I have a doubt concerning the Miller effect. I found on more than one source the following situation:
where Cgd1 and Cgd2 are modeled as a capacitor connected to ground as a consequence of the Miller ...
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Pond auto top-up project switch failure issues
I am installing a system to top up my pond when the water level drops below a certain level using a solenoid valve. I decided on 3 float switches - low level switch starts the filling, upper level ...
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Estimation of delay in digital circuit
I found this way to compute the High-to-Low propagation delay. How would this model be modified if instead of Having only a Cload after the transistor, there is a L-shaped RC segment (a low-pass first ...
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Transistor switching
I am using transistor as a switch, But am having a slight confusion. I am using the diagram below where I am using a 10ohm resistor. As I start switching the transistor instead of going into ...
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How to use a load profile to calculate energy consumption
I usually receive electricity bills from the utility but due to issues on their end, they haven't sent me bills for the several months. Instead they gave me a load profile for a few months which has ...
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Unresolved Issue in MOSFETs-based Variable Load Circuit Design and Simulation
I've been diligently working on designing a variable load for the purpose of testing both AC and DC power supplies. For this task, I have opted for the integration of back-to-back MOSFETs in the ...
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Voltage fluctuations in TIP122
I have used the following circuit diagram for power supply using a transformer,simple bridge rectifier and filter capacitor at the back of it to get 12V dcI have used the TIP122 as shown:
Idealy the ...
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From breadboard to PCB, MOSFET not able to control load
I designed a simple circuit like the one in picture to control a load:
Basically, if I'm viewing this the right way, I have a GPIO from an Arduino on the D6 point to control a MOSFET (it's actually a ...
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120 Vac, three phase, 400 Hz power supply - how important is balancing load?
We have 208/120 V, 400 Hz outlet. Can I use a single phase from the outlet to power my hardware or do I need to maintain equal load on all phase?
Let's assume that the max current draw is around 6 ...
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Crystal Load capacitors & ESR
In the KSZ8863 datasheet, the crystal specification is given (table 9-3), page 85.
Here the ESR is specified to 40ohms with no minimum nor maximum marking.
Load capacitance is specified to a max of ...
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Looking for alternative analog/digital circuits to drive low impedance with high current
I am looking to drive a load with the specifications as follows:
Load Resistance = 2.2 ±0.3 Ω
Load Current = 1.5-4.5 A
Nominal Load Current = 2 A
The load current should never go below 1.25 A at any ...
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Voltmeter reading over 63 amps with no load attached
Please see the attached pictures. I am new to electrical stuff and experimenting. The meter in the attached pic shows over 63 amps with ZERO load attached. Is this meter damaged?
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Does car alternator speed increase during load dump?
I am trying to understand the mechanism of voltage surges during load dump in automobiles.
As per this article -
The load-dump event has two components. First is the pulse amplitude (VP), which ...
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