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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Is there another component on the pcb that will extend the leg of the component?

In order to realize the event I mentioned in the picture below, I need an auxiliary component. Maybe a component where I can extend one of the holes 5 mm to the side. Or 5mm to 10mm dip adapter. Is ...
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Laptop AC adapter power cord [closed]

I suppose this is probably a stupid question, but my laptop was expensive so I want to make sure I'm protecting it well.. I ordered a second AC adapter for my computer, a used OEM one, but the cord ...
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Disturbance in AC adapter

I'm studying AC adapters, and to check about waveforms while changing parameters I did a simulation of this circuit: simulate this circuit – Schematic created using CircuitLab Then I wanted to ...
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EtherCAT Communication Testing

I am working on a device that uses EtherCAT. On one side, I have the standard EtherCAT Connector - an RJ45. On the other side, I would like to experiment with different connectors. For starters, I ...
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1 answer
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AC adapter makes high pitched noise when a notebook is turned off or asleep

When I put my notebook into sleep mode or turn it off the notebook's AC adapter starts making a high pitched noise. When the notebook is on the adapter doesn't make any noises. Could anybody explain ...
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Determining Polarity Of Unmarked AC Adapter With Voltmeter

I need to replace an adapter that no longer works (for a fibre optic Christmas tree). I do not see any indications for polarity on the adapter (or anywhere else) and I do not have the manual. I read ...
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5 votes
3 answers
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DIP to SOIC-8 Adapter

I'm just getting round to a project that calls for a SOIC8 IC to be surfaced mounted on the PCB. The part it calls for is nowhere to be found (the backorder is several months at least!). I can, ...
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2 answers
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Getting rid of AC DC adapters

Getting rid of AC/DC adapters I'm aware of the above question but feel it didn't address my situation. Note: Robot meant to be an underwater ROV(Remotely operated vehicle) I'm designing a robot and ...
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3 answers
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Unusual Polarity Symbols on Universal Adaptor [closed]

The polarity symbols on my universal adapter look a bit different to ones I have seen. Which setting should I use to power the device shown please, top or bottom position for the switch on the adapter?...
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In AC/DC adapters, why can't the DC cable be detached from the adapter? [closed]

I notice that in most (all?) AC/DC adapters, the DC cable can't be detached from the adapter. Is there a reason for that? Example: Note: The question is not opinion-based, since the existing answers ...
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-1 votes
2 answers
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Can I use this US extension cord in Europe? [closed]

Long story short: I need an extension cord to charge my EV when the standard charger does not reach the socket. I spent hours researching what options I have and most review websites I found were US-...
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1 vote
3 answers
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UK Plug Adapter for LED light [closed]

I bought an LED lamp from Germany and it arrived with an EU plug and a UK adapter. I don't really want to use an adapter on it all the time fixed in my home (And also, the adapter they sent actually ...
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Running 3.5" Hard Drive off USB 3 (900mA / 5V)

I was having a discussion with someone about why 3.5" hard drive adapters don't exist that run solely off USB. Please forgive me but my electrical engineering knowledge is minimal and been a long ...
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-1 votes
3 answers
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Is it OK to use a 17 V adapter instead of a 16.8 V adapter? [duplicate]

I have an old model mixer which uses a 16.8 V, 500 mA adapter. The adapter broke and I cant find any adapter that provides the specific voltage and current. What I found is 17 V, 600 mA instead. My ...
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How do you splice a micro USB cable to a USB cable?

I'm making a "heated vest" Christmas gift for my wife by adding heating elements to a "fashionable" vest. I've done this for others in the past: Velcroed in this tiny power bank ...
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How to prevent repeated re-soldering of SMD chip during testing?

Lets say you have a commercial device you are experimenting with. It has a flash memory chip that cannot be read while in-circuit (I have already tried the clip thing), so you have to de-solder it ...
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2mm pitch 10pin header (2x5) to 2.5mm pitch socket connector header adapter

My PCB has a 2.0mm pitch 10pin JTAG header (2x5). My MIPS programmer has a common 14-pin(2x7) 2.5mm pitch socket connector header at the end (flat IDC cable with female header). How do I interface ...
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Problem regarding clock stopping when voltage goes too high...?

I have a peculiar problem, that I can't explain. The thing is, I have a clock where I have installed light so it will light up when it's dark in the room. This works fine, it's feeded by an adapter ...
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1 vote
1 answer
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Using a USB adapter inside an enclosure?

I want to make a device that uses AC 220-250V power (to control relays to switch devices on/off) and prefer a single wire (+/-/gnd) to a wall socket box (thus not a separate 5V adapter). Would it be a ...
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USB Type-C powering from legacy sources

I'm new to USB Type-C and trying to design a USB-C powered device. After investing some time reading the specification and some application notes, I'm still having problems understanding the big ...
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2 votes
1 answer
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Making my own Chromebook debug cable (SuzyQ / SuzyQable)

While trying to access the CR50 chip in my Dell Latitude 7410 Chromebook, I tried making my own Suzy-Q cable because no online store seems to have some in stock. I bought some USB breakout boards, and ...
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Mismatch uncertainty of S11 antenna measurement with adapter

A horn antenna needs to be measured for its S11 parameters, but it requires an adapter from a rectangular waveguide to a square waveguide. VNA calibration is performed at the end of the rectangular ...
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2 answers
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AC DC adapter sawtooth current draw above rated value

I will be using AC DC wall adapter to power the flyback converter. Power adapter is rated 15V@3A = 45W. The question is, can I draw peaks over 3A if I stay below 45W on average? For example, with the ...
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1 answer
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Converting dry contact to momentary switch with feedback [closed]

I need to adapt a fan that is turned on/off with an SPST momentary switch to also work with a dry contact. Additionally, I need to ensure that the desired fan state is reached when the dry contact ...
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Device (Rasberry Pi device called a Bobcat 300) continues to burn out power adapters

I have a Rasberry Pi device (a Helium miner, a Bobcat 300), and I'm now on my 6th power adapter for the device, as all of the previous adapters have burnt out after 1 or 2 weeks. Here is the pertinent ...
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Is it OK to power a laptop using a voltage regulator? [closed]

I am trying to build a power module to power my laptop using a 12V lead acid car battery. The output specs on the laptop charger read 19.0.V and 3.6 amperes. I have tuned a voltage regulator with ...
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Telephone headset adaptor weak microphone and speaker sound

I have made a simple adaptor for a telephone P4C4 -- RJ9 -- separate headset output (The wiring diagram of a telephone handset can be viewed in this wikipedia article) to two TRS jack for an ordinary ...
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3 votes
3 answers
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How do I protect the power supply from a short circuit inside a device?

I'm working on an electronics project which would be powered by a 12V power adapter. I'm worried that in a case of a short circuit inside the device I'm making, the adapter could catch fire. Every ...
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-3 votes
1 answer
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Power adapter 12V for charging LiFePo4 12V battery with BMS with passive balancing

I have a project where I need to charge an Enerpower LIFEPO4 Battery of 12V 12Ah with BMS with an integrated passive balancer, protection against overcharge, deep discharge, over-discharge (...
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-2 votes
1 answer
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Do I need to add a ground to this recycled appliance ac to usb converter? [closed]

I found a lamp someone had thrown out and took it apart for components. It had an AC to USB adapter. Originally it had a 3 prong plug and was connected internally to various components and a grounding ...
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1 answer
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AVR ATMEGA32A UART not send and receive data unless programmer is connected

The code in micro is to turn a LED on when it receives "1" from UART and off when receives "0". For VCC I use a phone adapter (5V, 0.7A) which works properly and is suitable for ...
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1 answer
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Can anyone identify this fake chinese tesla mobile connector?

I got this from China as Tesla mobile connector adapter, but it does not fit a little bit wider and slimer. Below is the connector compare with tesla gen 2 connector(Chinese on top and Tesla's on the ...
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My IC pins are too small

I bought an IC, but the little pins are too small to fit into the female end of the wire. I do not want to use a breadboard or solder the wires. Are there any solutions?
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13 votes
4 answers
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What is the purpose of oscilloscope-probe-to-BNC adapters?

What are these adapters used for? (Image off Google, source) They fit over the tip of a passive oscilloscope probe, like this: (Image excerpted from https://www.caltestelectronics.com/public/...
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Simple short circuit protection?

Basically, I have dc adapters one of 12v 2a and one of 5v 1a, which do not have short circuit protection, having said that I want to make a simple circuit to protect them, I will add the circuit to ...
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2 answers
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AC DC adapter have the the LED on/off intermittently on ampere measurement

Why does the ON (ready) LED of an AC DC adapter intermittently turn off-on when the digital multimeter is probing its output on ampere measurement, while on DC volt measurement it gives as normally ...
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4 answers
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Why would a multimeter give an unexpected current reading?

I assume that the multimeter should read 2A for a 2A power supply, why is it only 0.358A? Edit: After watching a video on the basics of using a multimeter, I realised that as well as short circuiting ...
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Charaterization of waveguide to coaxial adapter

I'm trying a method to characterize a high frequency waveguide to coaxial adapter( 2-port network). For this, I use 3 adapters A1, A2, A3. After a TRM calibration, I measure A1 connected with A2 with ...
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2 votes
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Is it possible to connect CSI-2 camera to CSI-1 port? [closed]

I'm not hardware engineer and I have no idea if it would possible connect CSI-2 4k camera to CSI-1 port in snapdragon board? Do I need any adapter or it will work straightaway? Is any other pitfalls I ...
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About to start a new project I have some questions before I start [closed]

So I am going to start to build a table that will have two different stands of lights, which are linked below. I was planning on using an 18 volt Milwaukee battery, but after getting the lights, I ...
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2 votes
1 answer
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Power adapter 13.5V vs 15V

I'm trying to troubleshoot a problem with my Creative Inspire T6100 speakers. They seem to be known for volume control issues. In any case, I'm trying to determine if the power adapter is working as ...
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0 votes
1 answer
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It okay to use 12V 2.5A adapter instead of 12V 1A? [duplicate]

I have a piano keyboard that uses 12V 1A adapter . The adapter was not working anymore so i used another one which was 12V 2.5A but after 45 minutes of usage the keyboard got little heated up in the ...
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1 vote
1 answer
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USB plug adaptation for Dremel 7750

So, I recently threw out a bag of random chargers I didn't think I was using anymore. Later I found that my Dremel charger was part of these. I did however save all the connectors and just threw out ...
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USB-C to USB-A 3.0 and USB-C for charging 20V

What is the connections configuration that I should implement to output a usb-C and usb-A 3.0 from a usb-C input? The input will be from a docking station capable of supplying 20V to charge my laptop. ...
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-2 votes
1 answer
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How do I get an output of 24V from a K30319 adapter? [closed]

The K30319 adapter is a 24V adapter made by Canon in Vietnam. I pulled it out of a Canon printer someone chucked in the garbage. The adapter works as far as I can tell. I'd like to use this adapter to ...
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0 votes
1 answer
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What is the type of AC power in Power supply/Adaptor rating?

Most of times, Power Supply or Adapter has an annotation related to the power rating such as in this figure For the red underlined value, I understand that it is the actual delivered DC power, and ...
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Separating power from data micro USB to HDMI

I have a camera which both draws power and sends its data through a battery pack to a custom monitor. The monitor also draws power as well as receives the camera data through the battery pack. (Both ...
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BTA16 (snubless version) triac was killed with 02 laptop adapter, please advice on how to overcome!

I found some threads asking on inductive load for triac can kill the triac with over clamping voltage, however, the thread is no longer open so let's me make a question here with a hope that the ...
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Change FPC Pitch

I recently had a PCB made with a FPC on it. Unfortunately its the wrong pitch (Yes really stupid oversight) and so we need a solution that doesn't involve ordering a new board. The board has a 4 pin 0....
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1 vote
1 answer
101 views

Where to connect Y capacitor with a low side switching element?

I was working on a power adapter, and we had a synchronous rectifier in the positive high side rail. We have a Y capacitor between primary ground and secondary ground - between "A" and "...
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