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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73 views

What type of power adapter barrel is this? DC in 12V 3A negative semi circle positive anker

I cannot find another adapter that fits this specification. (Maybe I do not know the terms.) It is a positive center, DC in: 12V 3A. The device itself is an Anker AH221. I tried to measure the head, ...
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35 views

Using a li-ion battery instead of an AC adapter

I have a board that uses a 19v 3.42A AC adapter as a power supply and I want to replace that with a Li-ion battery. What should the voltage of the battery be? I ask this because my laptop for example ...
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39 views

Capacitor and resistor in parallel in output 19V laptop charger [closed]

I have been studying with my charger and I cannot figure out why it leak ac while also providing DC 19V. When I touch anode and cathod of the charger and checked it, there were no ac current flow. I ...
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51 views

Can I replace an AC Adaptor with a battery? [closed]

I have some DJing hardware that I run at home off a 12V, 2.5A AC Adapter. I want to buy a 12V battery and connect it directly to the hardware. I know that a 12V battery is slightly more then 12 volts ...
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55 views

Name of unusual power adaptor plug

I'm trying to find out if this kind of power plug for my laptop has a name, so that I can google for it more successfully. I haven't ever seen any other like it, with its 4 pin connectors. Does this ...
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29 views

Pins for SIP Adapter

Looking to make some SIP to DIP adapters and I'm trying to find some individual flat pins as per the below image - does anyone know where to get them or what they are called? An alternative is to use ...
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1answer
45 views

Any teardowns of a usb type a male to type c female adapter? [closed]

I'm trying to make my keyboard cable detachable and USB type C, need to know how the wires in a type a male to type c female adapter would look (one with a short wire in between and not just a board).
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43 views

AC adapter not working on one outlet only

I have a switching AC adapter with an LED on it that shows when it's plugged in and receiving power. It works fine in all my outlets except one. But this one outlet works because it powers everything ...
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76 views

What is the name of this connector and how can I find an adapter?

I have the following connector (see image below) with contains 5 metallic pins (4 pins are used for a 4-probe IV measurement + 1 ground). Its diameter is 6.65 mm. What is the name of this connector? ...
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137 views

Can I splice a standard AC power plug onto a 2-pin DIN table lamp cord?

I've acquired a table lamp with a 20W 12V bulb (possibly from IKEA?). The cord terminates with a female 2-pin DIN (41529) connector that I do not have an adapter for. Am I correct to assume that it ...
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63 views

What is the effect of using wrong DC adapter to power on an electrical device?

Electrical devices powered by a DC adapter have specific in/out voltage/current values, so as an example what will happen if we used an adapter with 9v/1A output for a 5V/0.5A device? Consider all ...
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49 views

SMA Differential LVDS to DB9 and termination

I want to connect a differential LVDS signal to a DB9. It seems pretty straightforward but I just want a sanity check and after seeing this (Connect SMA to a regular pin/wire), Im doubting myself. The ...
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128 views

Understanding XLR phantom power adaptor

It's a scheme for microphone adapter, from XLR to mini-jack, with the conversion of 48V phantom power to plug-in power 6.2V. Could you describe how the circuit works?
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Using a 100W External Power Pack to Run / Charge an Old 19.5v Laptop [closed]

I have just ordered the new Flash 2.0 battery pack. Specs are here, but briefly: 100W USB-C Power Delivery 3.0 Output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A (PPS) I've also got an old HP Pavillion ...
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SATA 3 to M.2 conversion

I'm designing a PCB that should (among other things) include an M.2 SSD slot and convert that to a SATA slot to be connected to a computer. I considered just soldering a commercial SATA-M.2-adapter ...
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60 views

Talking to SD card *adapter* from FPGA

I have an FPGA (Lattice ICE40UP5K) at hand and need to do some SD card I/O with it. There are tutorials about interfacing with an SD card with an FPGA, but they typically concern with the case where ...
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51 views

How to confirm whether a device was fried by higher voltage

After a move, I inadvertently hooked up a 15V/3.42A adapter to a device—an X99 (RK3399) Android TV box—which I later found out (when it didn't turn on again)—on the web, as it's not indicated on the ...
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Will connecting a NEMA 14-50 to a IEC 60320-C13 in this manner present issues

I have a japanese item in my house which takes a considerable amount of power (>1.5 kW) and takes a C13 power plug expecting 210-250V at 50-60Hz. My idea was to connect a NEMA 14-50 power cord in ...
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What is the reason for yellow tape on top of USB mini-B?

I have noticed that occasionally some USB mini-B connectors have what looks like a transparent yellow tape on their top. It might be Kapton tape, but I am not sure. As an example, please see the below ...
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1answer
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What will happen, in my router, if I connect 9V, 0.85A Power adapter to a 12V, 1 A adapter slot? [closed]

I have NETLINK HG323RGW GPON ONT Router, it uses 12V,1A, AC-DC power adaptor. ( Power consumption ≤9W ) I also have TPLINK ADSL Router which uses 9V, 0.85A power Adapter. ( https://www.tp-link.com/...
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How does a USB-C to Lighting Adapter work / How to replace them? [closed]

So, I am fairly new here, and to be honest I have no clue if this is the right place to ask. I am currently thinking about replacing a Lightning port with a USB-C port, just for power supply. At first ...
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86 views

Is it safe to use an “18v ~ 20v” power brick/adapter for a device that originally had an 18v adapter?

We have a device that uses an 18v adapter/power brick, unfortunately the adapter broke. As a replacement, we are considering an adapter that has a "18v ~ 20v" rating printed on its back. ...
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1answer
70 views

9V and 12V adaptors - bad output [closed]

I have a couple 9V and 12V adapters ranging from 1A to 5A. When I plug any one of them in, it produces accurate voltage but the current oscillates between 0A and anything upto maximum current and then ...
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160 views

Using a 9V battery instead of a DC power supply

I have a DC power adapter that has the following specs: Input Voltage: 100-240V AC, 50-60Hz, 0.5A Output Voltage: 9V DC, 1.5A I am interested in taking a 9V ...
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Fuse keeps blowing on AC/DC Adapter

Recently I have noticed high freq. screeching noise coming out from my laptop's adaptor. I opened it up and found that it came from somewhere around a diode named egp10a. I checked it (unplugged) with ...
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47 views

Mini PC received higher voltage (19V instead of 12v) what hap

It was dark behind my desk and I've plugged in the wrong cable 19 V, 3amp instead of the dedicated 12 V, 3amp. The 19V adapter ...
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1answer
91 views

MicroSD to USB adapter

My goal is to make a MicroSD to USB adapter myself. With this question, I saw that I can use a USB2240 controller chip to connect my µSD card to my computer. In ...
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52 views

USB-C charging cable for Nintendo Switch

I am trying to change a broken USB-c charger connector for a nintendo switch by changing the male end connector. The charger cable has 5 wires 2 red(Vbus) 2 Black (GND) and a small white cable that ...
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87 views

I accidentally bought an HDMI (male) to VGA (male) cable that isn't an adapter or converter of any sort. Does this product have any value? [closed]

I have a laptop with an HDMI port. I have a monitor with a VGA port. I wanted to connect the two. The website I bought this cable from labeled it as an 'adapter' so I assumed it would do the ...
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32 views

How do we communicate computers(NETWORK Adapter) using two different data encodings?

For example, one of the computers use NRZ encoding, and the other one use manchester encoding. How should the communication be? Or what would be the result if we used a repeater? Is it possible ?
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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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1answer
166 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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83 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
128 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
112 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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42 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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122 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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1answer
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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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49 views

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
54 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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2answers
91 views

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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79 views

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
46 views

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
33 views

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
91 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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64 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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1answer
34 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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