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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58 views

Can my AC adapter from the UK be used in the USA? [closed]

I have a device which I originally bought in the the UK and now I'm trying to get it working in the US. The adapter that came with it is labelled as "Input: 230V AC 50Hz / Output: 9V 2000mA" I'm ...
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26 views

Type of power converter to be used for both AC and DC use

What kind of power adapter that I need to use to supply power for a DC motor of a fan and also an AC heating element? These two components will also connect with Arduino. Is any of these power ...
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2answers
94 views

What happens if I use a DC adapter with a15v output with a PC monitor with a 14v rating?

I have a PC monitor with a 14v rating but it's original DC adapter is broken. Can I safely use a similar DC adapter from a similar monitor, but with 15v output instead? How likely is the 14v monitor ...
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45 views

Will 12V2A break smaller pc fans?

Currently I have a 12V2A adapter that powers 2x 12V0.3A/12cm pc fans. I want to bring in an additional 12V0.4A/23cm fan to the circuit. The question: can the new setup cause any harm to the fans or ...
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1answer
101 views

Name / Adapter for Vintage AC Plug

I just came into possession of a bunch of vintage "audio" gear from the nuclear labs at Los Alamos (a bunch of test oscillators, oscilloscopes, pulse generators, etc). Been checking it out, seeing ...
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2answers
75 views

Replacing a Switching Power Supply for an AC-DC Adapter

I am designing a 3D printer. I need 12V and 5 amp for powering the printer extruder and 11 amp for powering the heated bed. At the moment I am using the model Model S-240-12 capable of delivering ...
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2answers
90 views

Disassembling AC adapter

I got new wall mount AC Adapter, the adapter itself is good, but cord is low quality, very short (1m) and very hard and coarse, non-flexible. I want to replace adapter cord with better one. The ...
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1answer
39 views

Can I use a surge protector with an adapter on travel?

I don't know if this is a question for this site, but here I go: You know how the US and Europe have different plug in points for the electrical appliances/chargers etc. So if I want to use a phone ...
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1answer
71 views

Car adapters (12V -> 5V) in parallel

Am wondering if there are any risks involved in putting two (5V) car cigarette lighter adapters in parallel. They will be part of a setup replacing the car stereo, so will be connected to the "...
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1answer
52 views

Is there any reason for the wires in a PCI-e and CPU power cables to be separate?

These are the connectors they are for: So as you can see, the PCI-e connector uses either 3x12v + 3xground or 3x12v + 5xground wires in the cable. I've red that optionally some of the wires can be ...
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1answer
67 views

Printer power adapter [duplicate]

I bought a power adapter to my printer but the lable on it says output voltage is 32V at 1.56A that means it is going to deliver around 50 Watts to my printer. On the other hand the original adapter ...
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3answers
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Increasing voltage, but same current [duplicate]

There are a lot of questions asking what happens if you change the current, but keeping the same voltage. If more current is flowing to me it means you can damage the device. But what if it is the ...
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234 views

Magsafe to USB-C adapter

I would like to create an Magsafe 1 to USB C adapter to re-use my macbook magsafe charger on my usb-c macbook. I have these components below and already tried to connect both V+ and Ground with no ...
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1answer
203 views

What happened to my plug adapter? [closed]

I use a travel adapter to plug my microwave (UK plug) into an Austrian, European outlet. The other day, whilst the microwave was switched on but not cooking anything (ie the magnetron was not powered),...
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4answers
72 views

Is it better to get a laptop from your country? [closed]

My knowledge about the inner workings of electronics is very limited, but I'm planning to move country that uses a different voltage system and I was wondering if it would matter if I bought a new ...
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3answers
55 views

Voltage range adapter [closed]

I have two ideas: I use a temperature sensor, which is a thermocouple, where it will be connected to the input of the voltage range adapter. It will design a voltage range adapter capable of taking ...
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1answer
71 views

Adapter for drum module showing incorrect values?

I have bought this electronic drumkit by Roland about a year ago. It was second hand. It came with a 230v ac to 9 v dc 1000ma adapter. On the drum module, a few types of compatible adapters are ...
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2answers
459 views

3.5mm to DB9 connector (differences) [closed]

I have 2 different type of connectors of 3.5mm to DB9 that I use to send RS232 commands from device to a screen. The 3.5mm is attached to the device on the serial port and the DB9 to a serial cable ...
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1answer
77 views

Power adapter giving a specified current [duplicate]

I often see power adapters indicating 5V 900mA (or) 5V 1000mA or sometimes 5V 3.4 A. Obviously they are converting current coming from 220V/110V source to 5V DC using some step down converter. But how ...
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434 views

Could this be a 5V to 9V/12V USB to DC converter? [closed]

Could this be a 5V to 9V/12V USB to DC converter? Hello, I recently visited an electronics shop in Asia where they sell this item (see below). Could it really be that this product converts between ...
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1answer
2k views

Why are UK pins sealed in HK travel adapters?

This Momax USB travel adapter was purchased in HK. I emailed Momax tech support to ask about the UK pins being sealed (as shown in the photo) and received a response saying that it’s in accordance ...
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1answer
59 views

What converter to use?

I am going to build a stage box, and I need 5V for that (to add some logic, maybe even later an STM32). I also need mains (220V) for a 12W RGBW LED PAR light. At first I thought to put in the box a '...
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1answer
2k views

How to power STM32F103C8T6 in a 'real' project?

I'm sorry for this probably very generic question, but I cannot find a good answer. I have several STM32(F103C8T6, a.k.a. Blue Pill), which I now power via a ST Link (giving 5V via USB). The STM32 ...
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1answer
313 views

Replace 3V DC batteries in water heating system to Power adapter

I'm trying to replace a pair of 1.5v D size batteries that my water heater uses for ignition. I have bought a 3V 1amp power adapter, but when I connect it to the terminals and turn on the faucet, I ...
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1answer
191 views

Looking for an “SMA signal polarity inverter”

I found one of these lying around in my microwave/RF lab and I was wondering if it has a technical name and if I can build one myself: It has SMA connectors at the two ends. It flips the polarity of ...
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2answers
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How to convert a microphone with 4 pole TRRS to 3 pole TRS? [closed]

I have bought a mic online which is 4 pole(TRRS) and would like to convert it to a 3 pole(TRS) as a 4 pole mic doesn't work with a pc. I have a 3 pole 3.5mm jack but I'd very much like to know the ...
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0answers
34 views

Replace a power adapter 12V/1A DC with 15V/0.8A [duplicate]

I have a battery-charger that has an input of 12V/1A as specified in the specs. Can I replace the adapter with a 15V/0.8A ...
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3answers
684 views

Packet loss on LAN point-to-point

I would like to ask if packet loss in p2p LAN is a normal behavior in LAN. And now in more details: I am connecting PC to target board with TI's chip and LAN9221 controller. I am doing a ping-pong ...
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7answers
3k views

Calculate the electric bill of a phone charger (AC adapter input or output?)

I need to calculate the amount of money I pay for charging my phone with this charger I know that I need to calculate the watts then kWh, so I multiplied 5 V by 1.55 A to get 7.75 watts and then use ...
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1answer
202 views

can i plug 2.5A cord to 120W 6.32 19V AC adapter [closed]

I bought An asus charger for my laptop 120W 6.32 19V AC adapter, it cam with out AC plug, i got a plug from a regular charger with 2.5A ~250V. will this affect the power going to the AC adapter since ...
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2answers
336 views

How do I do to solder the adapter in the port and still use the same usb port without ruining the notebook? [closed]

I have a laptop that the wireless network card does not work, but I do not want to use my usb input for putting an external adapter, my idea is to open the laptop and solder the adapter inside the ...
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2answers
79 views

Why are the two rectifiers in an AC Power adapter?

I am currently learning how an AC Power adapter works, and I learned that the incoming voltage is first filtered, then rectified, then converted back to AC using a transient switch, transformed, then ...
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1answer
120 views

Forgot ICSP / in-circuit interfacing of pins on Atmega328P in TQFP-32 package

I am having an issue due to my own stupidity: I designed a PCB with the good old Atmega328P in TQFP-32 package. I broke out the pins for UART in order to be able to Arduino-flash it (beginners/...
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1answer
346 views

How do I run a 12V 450mA DC motor using a 12V 1A DC adapter? [duplicate]

How do I run a 12V 450mA DC motor using a 12V 1A DC adapter? It is for a small water pump for one of those decoration waterfalls. Should I simply add a (R=V/I) resistor? If so, what is the approximate ...
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2answers
1k views

Simple circuit to detect ac power loss and use dc backup? [closed]

I want to make a simple circuit like those used in commercial emergency lights. I would have a "walmart" AC to DC adapter powering say a DC light or two. I would like it so when the AC powering the ...
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1answer
400 views

How to put several nRF24L01 adapters (+module) on a breadboard?

I want to use several nRF radios together with an adapter like this: Also, for the device I'm using these for (two nRF's) also I have other components which I put on a breadboard. However, the nRF ...
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2answers
431 views

Super Beginner Question on Soldering to a 5v to 12v USB step Converter

thanks for taking the time to read my question. The real question is on the bottom, the context is super simple stuff that should take 2 minutes to read. Please tell me if you need clarification. I ...
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1answer
633 views

Beginner, Confused as to how to solder a “Y Split” Molex Connector to a USB

I am currently working on a project in which two small computer fans are powered from a USB port. I want to be able to get two laptop fans powered off of one USB slot. I was looking into some ...
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3answers
364 views

Does Soldering and Attaching/Using Molex Connectors reduce power draw? [closed]

I was looking to attach a Molex connector to the end of a USB by cutting a male Molex connector with a cable, and soldering the black and red USB wires to the black and red of the Molex cable with the ...
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1answer
63 views

Effect of cooling a DC power adapter with too few amps?

I have a device (PC fan) which wants 2.0 amps, and a DC adapter that supplies 1.8 amps; both 12v. As I understand it, using this adapter will cause overheating and reduced voltage. My probably-...
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1answer
514 views

YPbPr to VGA (consoles on monitor)

So the main idea is to take the component video of my consoles and convert them to VGA using the LM1881 IC, to strip the sync signal. If I was going to plug the green cable from my PS2 component into ...
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4answers
3k views

How to convert a device pluggable to a car lighter, changing to a regular home socket [closed]

I bought an air compressor that is powered by the car lighter in my car. It does the job when I want to inflate my car tires, but if I want to use for something else like there are 3 bikes in our ...
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1answer
58 views

Bluetooth Speaker Sony SRS-X5 [closed]

Can I charge my bluetooth speaker with 12v adapter, if it says on him 12.5v? Will it damage it or will it just charge slower?
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1answer
172 views

Does a rotated polarity diagram have a special meaning on a netbook adapter? [closed]

I saw some other questions about replacing charger X with charger Y, so it's probably not offtopic here. This is my original adapter: This is the adapter that looks promising to be a replacement: ...
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4answers
1k views

What is a single socket to ground-only plug adapter for electrical outlets called?

A three-prong to two-prong adapter is also known as "AC ground lifter" or "cheater plug". What is a single socket to ground-only plug adapter for electrical outlets called? It's a single socket ...
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1answer
547 views

Connecting Garmin 18x 5hz GPS to PC via Serial TTL-232 USB cable

I want to connect Garmin 18x 5hz GPS (this) to computer via FTDI Serial TTL-232 USB Cable (this). But once I try to update the GPS via Garmin updater, I get framing error. "A communications error has ...
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1answer
112 views

Solid State relay trips when load on Input change

I am trying to control a 12V door lock using this solid state relay. In my switchboard, I picked the power from the common power line to power up my SSR at 5V using an adapter, The power line is also ...
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1answer
115 views

Plug adapter voltage rating

Is it safe to use a passive plug adapter rated for 110 V in a 220 V mains country? With passive plug adapter I mean something like this: Those bad boys are also known as "travel adapter(s)", and ...
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3answers
91 views

Is 19V safe for charge Ni-Cd batteries?

I have 5 Ni-Cd battery(1.2V 2200mAh). They connected in series. I have a 19 V 3.42 A adapter. Will it make a problem when I charge Ni-Cd batteries with my 19 V adapter? Is 19 V dangerous for charge Ni-...
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3answers
201 views

Can I power a 6V/0.1A device with a 7V/0.3A? [closed]

I'm trying to power a 6V/0.1A calculator with a 6V/0.3A adapter. But when I check the voltage in a program of the calculator, it says it's being powered with 7.85V. Is this safe? Thanks in advance.