Questions tagged [adapter]

In electronics the term adapter is normally used to describe something that converts from one connector or package to another. For example a BNC to SMA adapter is an example of a connector adapter, while an SOIC to DIP adapter is an example of a package adapter.

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39 views

Can switching adaptor perform constant current mode?

I want to ask about wall adapter (switching) with 2.5mm jack let's assumed its label as 9V 2A. I saw many tutorial even some product use normal adapter (2.5mm jack) with BMS module to charge Li-ion ...
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53 views

How can i fix my ac adapter

plugging the ac charger into any electrical outlet turns the Electric off at home i checked the cables And No problem was found. Any suggestion
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Why would only a DisplayPort cable work with my Surface Docking Station?

I hope this is the right section to post this in; I don't see a hardware question section (just a recommendation), and this seems to be beyond software engineering... After a week of troubleshooting, ...
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39 views

splicing ac adaptor cord which is positive and which is negative?

i lost my original asus router power adaptor. so i have a 12v power adaptor with a tip that fits my 19v asus wifi router, and i have a old 19v power adaptor that has a tip that is too small to fit my ...
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43 views

How can I build a composite video to scart converter?

I'm interested in building a composite to scart adapter. How can I?
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2answers
70 views

How can 10V AC change to 12V DC?

This is a circuit that takes 220V DC as an input. I understand how the 220V AC changed to 10V AC and changed to DC by whole-wave rectifier. But why is it 12V??
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1answer
54 views

VGA to Composite conversion cable

I'm not able to obtain an adapter from local markets for vga to composite video output. Found a circuit [VGA to composite circuit. Does it work?] that claims to work. I didn't had a vga cable so I ...
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1answer
34 views

Does the size of switch-mode adapters affect their efficiency?

I know that a rule of thumb to judge the efficiency of a traditional iron core transformer is to look at its size: the larger it is, the higher the number of windings, the larger the core, the ticker ...
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1answer
28 views

Controller for HDMI to 30-pin display connector converter

I need to design a circuit for HDMI to a 30-pin eDP adapter. Do I need to use some high-speed microcontroller that takes the signal from HDMI or forwards it to the eDP connector or is there some chip ...
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1answer
64 views

What is the power consumption of a 12V adapter running 4 CPU fans?

I have a quick question here. I am not a ECE guy and just a hobbyist trying to tinker while quarantined. I have 4 CPU fans (120mm) laying around and I'm trying to re-purpose them as a small fan. ...
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1answer
25 views

Connecting led IP65 strip from a wall socket to an adaptor/psu

I have no electrical background, so I have very basic knowledge about this, but this is what I can gather. So I'm trying to set up an led IP65 white strip, but I know that it needs certain components. ...
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52 views

12 VDC battery supply with automatic 12 VDC adapter override

I am designing a 12 V circuit to provide 12 V DC (500 mA). I would like to have 12 V battery but also be able to plug in 12 V adapter to automatically override the battery without a switch and without ...
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What does this symbol mean on my Samsung travel adapter?

The charger was bought in Austria two years ago, and I know about all symbols/labels except this one. Google reverse image search did not help.
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AC to DC converter device (AC adapter) with adjustable output voltage and adjustable output current [closed]

Is there a device available in the market that can take an input AC from mains and convert it into DC and output it, the output current and voltage must be adjustable. I know there are AC adapters ...
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1answer
42 views

9V 1A adapter and 2*3.7V battery IRF9630 produce sound and gets very hot 9V battery not (metal detector)?

I am not an expert at electronics.I am trying to build a pulse induction metal detector. I have this circuit from that Book I am using it with stm 32 blue pill but I have to stabilize the 9v supply ...
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What plug type is this?

I recently bought some LiPo battery packs from Ali, Now im trying to figure out what type of plug it has! Anyone knows the answer? Would be awesome.
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Vacuum cleaner charging works only with the original adapter - why?

I have this old robotic vacuum cleaner that I got cheap and was using for a while: https://www.youtube.com/watch?v=nvj8BmijDn4 (not my video) Now however the charging adapter broke and I've been ...
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1answer
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Issues encountered when adding DC adapter to light powered by battery

I have an LED light bar powered by 6 AA batteries connected in series. There is also an RF control unit to turn the light on/off. The light eats through the batteries rather quickly thus I decided to ...
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1answer
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Adapters from Australia to Canada [closed]

I am in Australia and going to Canada I have 2 laptops that I want to take with me. and other electical stuff such as shaving machine and electrical teethbrush. I am going to get Canadian plus with ...
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1answer
85 views

What is happening when I apply 5V DC to the DC end of a 12V AC to DC adapter? [closed]

The question is in itself a little bit confusing but I will try my best. So I have a normal 12 volt (1 amp) AC to DC wall charger, nothing fancy about it. I use that to power a fan, which works great ...
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61 views

Noise generated by monitor from Word document

I was zooming in and out of Word documents of only text and noticed that a noise was produced. The noise increased in pitch as I zoomed out and decreased as I zoomed in. I tried changing the font ...
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How to get max V output from XBox360 power supply

I have a few Xbox 360 power supplys laying around and want to repurpose for led light project I am working on. The rated output is 12V 16.5A and thats perfect for my needs Problem is how do I get ...
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33 views

Which adapter/handling to choose on (Type N) rf test devices when SMA/K cables have to be connected frequently?

I'm no expert in high frequency. But probably it is no good idea to change the adapters sitting on type N female output on and on as a torque wrench is used to fix them. But I have to make ...
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36 views

Identifying type of serial connection interface

I am having an FPC1020A fingerprint sensor which according to its specifications offers an UART and an USB interface. The images below show both interfaces: As you can see in the second picture the ...
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2answers
117 views

Identify this 2 pin DC connector

I'm looking for the power adapter for a dehumidifier (Zibro Clima D4) described in the specs as a CE approved 220-240 V, AC/DC 13 V/5A power adapter, which is shown in the manual and partially shown ...
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1answer
60 views

Can I link mismatched parts with jumper wires?

I'm out of my element here and I don't know much about electrical engineering so please excuse the bad terminology. A light on my car stopped working and it's a long story but the easiest way to fix ...
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3answers
59 views

Reduce voltage/amperage from adapter to fit another device

Complete newbie here. So I got this old gaming console with the original adapter, which outputs 8.2V / 850mA. The cable connection with the body of the adapter is somewhat loose, though, so if you ...
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1answer
66 views

Converting Battery Operated Motion Sensor Light to AC Powered

I have converted many battery powered devices to AC adapter in the past. This time around I am using a Motion Sensor light which takes 4 C batteries and is used to light a closet. When I connect a ...
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37 views

How turbocharger mobile charger works?

I have found a turbocharger from a motorola device which has 5V, 9V and 12V outputs. I want to use this charger to run raspberry pi 4. I need to know how tutbocharger changes the voltage? I am scared ...
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2answers
119 views

Are travel adapters safe to use permanently? [closed]

I got a phone from Malaysia and it comes with a UK charger(I think? see pictures). I live in EU and would need to use an adapter permanently to charge it using the fast charger it came with. Is it ...
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1answer
130 views

How to create an airline headphone adapter?

So, I have a predicament: I am a 6'5" guy with massive ears. Like it's not funny how big my ears are. When I go on an airplane, the headphones they give me are terrible and hurt my ears when I wear ...
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132 views

Is it safe to wire an AC-DC adapter directly to a DC motor? (with this setup…)

I just wanted to check that this setup is safe as I am not an electrical engineer, nor am I experienced... I am using an AC adapter which outputs 12 volts DC. It has a max current rating of 6 amps. I ...
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1answer
40 views

Adapter to plug home audio system speakers into computer

I'm wondering if there is an adapter I can use to plug two speakers that came with my home audio system into a laptop. My laptop has an auxiliary port (not sure what the technical name is) that I plug ...
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2answers
150 views

Why does dropping my laptop's AC adapter in the floor make it work again? [closed]

For several months now I've had trouble getting my AC adapter I use to charge my laptop to work. It's one of those typical looking things, with two ends and a big bulky rectangular thing in the middle....
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1answer
2k views

Why would a USB-C adapter have a pull-up resistor?

I'm talking about a USB type-C male to USB type-A female adapter, the ones you need to connect a USB flash drive to the latest MacBooks. According to USB-C specification, this sort of adapter needs a ...
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32 views

Which adapter is more suitable for a pressure transducer?

For my student project, I'm going to be using a 4-20 mA and +/- 10 V output pressure transducers and the output of these sensors will be going into a DAQ system that we purchased from DEWESOFT. Along ...
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1answer
81 views

What are these soldered/un-soldered dotted-shapes? on the traces which don't have soldermask?

Please look at this image(see the soldered/un-soldered dotted-shapes which are identified by arrows). This circuit belongs to a laptop adaptor. What are these soldered/un-soldered dotted-shapes? As ...
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4answers
614 views

Why are these traces shaped in such way?

Please look at this image(see the PCB traces within the circles). This circuit belongs to a laptop adaptor. What are those parallel soldered-traces on the PCB traces? Why aren't they soldered to ...
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1answer
57 views

Looking for a connector with only images to go on

I'm trying to find the connector used for my vehicle's accelerator pedal. Are there any strategies for finding connectors like this?
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1answer
87 views

RS485 full duplex to Adapter with A and B ports

I need to configure a sensor (Thies 3D Sonic Anemometer, Manual: https://www.biral.com/wp-content/uploads/2015/01/4.383x.xx_.xxxUS3D.pdf) via my computer, it has RS485 full duplex and half-duplex ...
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2k views

Is it safe to use a 19V DC adapter for a 12V input if it can provide enough watts? [duplicate]

I have a small TV which expects 12V DC at 34W. Can I use an adapter with a higher voltage rating (19V for example) as long as it can provide enough amps to satisfy the amount of watts needed by the TV?...
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1answer
258 views

How do USB to serial adapters work?

I'd like to know how a USB to serial adapter (such as the FTDI FT232RL chip) works. The way I think it does is the following: Picture a system composed of a MCU, a USB to serial adapter and the PC ...
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158 views

Yellow tip polarity

What does the yellow tip on some adapters mean vs the blue or silver
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2answers
73 views

Identifying this component adapter/socket

I'm sorting an old collection of electronic components, some of which I don't know what they are used for, like this one: This component is about 7 mm wide. Does anyone recognize this? Thanks in ...
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Build 100-240v Power Adapter

I am trying to power a 5v circuit from any voltage between 100-240v. I know it is possible to do this with a transformerless power supply, but only for a single voltage (e.g. 120v only), but how do I ...
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3k views

Why is a laptop power supply output voltage different from its battery?

I hope you will not mind answering. This question has long been on my mind. Normally, the adapter output voltage is higher than that of the battery. In my laptop's case, the output voltage of the ...
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1answer
19 views

Use different adapter for LG 25UM65-p [closed]

My LG monitor (25UM65-P) has original adapter (19V, 1.7Amp), can I use a different adapter (14V, 2.14Amp) for it? Has this any side effects or negative points?
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63 views

Is it normal for an unregulated AC/DC Adaptor to provide voltage after unplugging

I have an AC/DC adaptor, as it has variable voltage setting (1.5, 3.0, 4.5, 6, 7.5,9 and 12 V). Voltage readings are larger. For 7.5V setting it provides 12V, for 12V it provides about 18V. So I ...
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1answer
71 views

What is this adapter and what can I replace it with for simpler operation?

My church plant uses the D3540 pager - https://www.microframecorp.com/d3540-4-digit-wireless-visual-pager-display We have to setup and tear down the pager system every week. We have to manually wire ...
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1answer
93 views

Difficulty sourcing a 6mm dc adapter/plug/converter…any ideas?

I recently bought a second power supply for my laptop. The laptop requires a 330w power supply (it runs a desktop grade CPU), which costs around £120 (Laptop is the Asus GL702ZC). I managed to source ...

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