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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1answer
45 views

230v adapter on 220v socket [closed]

I live in Europe so 220v is the standard. I have 3 guitar pedals purchased from company called Digitech. Each requires output of 9vDC and 300mA. Previously I have used an adapter of a less known ...
0
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4answers
72 views

Replacing adapter with batteries?

I have some device with ac/dc adapter [9v, 500mA], and I want to replace the adapter with batteries. If I used [6 * 1.5v] battries, is that acceptable? do I have to worry about the max current of the ...
1
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1answer
50 views

How my ac-dc adapter gives constant voltage and current? [duplicate]

I have multiple ac-dc adapters, one with variable voltage and the others for electronic devices. written on them they give specific voltage and current, How come? Doesn't the current change with the ...
3
votes
2answers
322 views

What's the rationale behind “wall wart” plugs? [closed]

It's more of a curiosity question than a real problem, but since I've run out of wall sockets again, I'd like to ask you - is there any particular reason or use case in which "wall wart" AC adapter ...
0
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1answer
38 views

Can I get the type of clamps that are utilized by the Peak DCA55 Semiconductor analyzer for a multimeter?

I love how on my DCA55 it has push button with clamps that I can use to clamp down on the component I'm testing. Is there a place I might find this attachment for my multimeter? Also, what are the ...
2
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3answers
80 views

AC adapter: Input power vs Output power

When I look at, let's say an iPad AC adapter, the input/output rating on the charger states: Input: 100-240V 0.45A (AC) Output: 5.1V 2.1A (DC) I know that the ...
0
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1answer
69 views

Xbox 360 Controller to Nintendo 64 Console

The goal of this project is to create a working adapter between a wired Xbox 360 controller and a Nintendo 64 game console. The signals from the Xbox 360 controller USB port data pins (Data+ and ...
0
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1answer
43 views

ECL to Lemo connector

I am designing a DAQ software, which looses some information during read out. There fore I thought of testing another CAMAC ADC and in particular the Lecroy 3351. Surprisingly I saw that it doesn't ...
0
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2answers
63 views

Understanding Current Draw [duplicate]

I have a DC- adapter which gives me the output of 12V and 3.3A, I want to connect it to a device which requires 12V and a few hundred milli amps, would this damage the device? or any device would ...
0
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2answers
113 views

DC Supply and Battery in parallel

Hey everyone I'm working on a project where I want to be able to power a thin mini-itx motherboard two different ways. Here is what I'm trying to do: 19V battery will be connected to a relay which ...
1
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0answers
61 views

Problem when connect ProPIC2 and USB to Parallel port adapter

I have a ProPIC 2 programmer which needs parallel port (DB25) to work but I don't have in my notebook that port (SO: Windows 8), so I'm using a USB-Parallel adapter. When I connect the device it ...
1
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2answers
119 views

PIC Programmer driver issue

I'm programming a PIC16F77 with ProPic 2 which communicates via serial port. As I don't have this port in my PC, I used serial to USB adapter. I'm using ICProg in Windows 8. I've proggrammed it ...
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votes
1answer
45 views

Charging my laptop with a universal adapter [closed]

My laptop charger's adapter recently died, and as a new one of its kind was very expensive, I got a universal one for free (here is the model, I couldn't find a link in English though). The charger's ...
0
votes
1answer
93 views

Safe to use 4.5v 300ma rated 'universal' ac/dc adapter with kids alarm clock that requires 5v 500ma? [duplicate]

Have a kids alarm clock that requires 5v 500ma for power supply option (but can also run on 3x AAA batteries). I have a universal adapter that can supply 4.5 or 6v (with the correct polarity) but it ...
0
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0answers
34 views

Reading data from Mini-Din 9 pin device [closed]

I have an old surround sound system that connects to a small display via a 9 pin mini-din port. It uses it to display various data such as volume level, the current audio input, etc. The display ...
0
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1answer
91 views

How to safely convert 120VAC from a lamp bulb socket to 12VDC

For the holidays, I'd like to make my chandelier light up with different colors. There are all sorts of cheap RGB LED strips that, via remote, allow the user to program patterns of lights. These ...
0
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0answers
99 views

3 pin power adapter: 24V, GRN and COM

I'm trying to make a replacement power adapter (24V---3.75A) for a medical monitor. There are 3 pin connectors and the diagram on one side of the supply box reads: 1- 24V, 2- GRN and 3-COM. I ...
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votes
1answer
90 views

Replacing AA-size batteries with AC adapter [closed]

I have an LED light with two emitters that takes six AA-size batteries. It eats the batteries like candy, so I want to replace the batteries with an AC adapter. What voltage and milliamp adapter ...
1
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1answer
149 views

Ac Adapters Pri & Sec ratings what can I use?

I am a complete novice and know very little about this so please stick with me. I have a set of lights that came with an AC adapter that is now faulty. On the adapter it has: Pri: 230V-240V ...
2
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3answers
93 views

Pin IO for a computer running Linux [duplicate]

I'd like to control a few input pins (say 5) and a few output pins (at least 2) from a computer. The computer has no parallel port. What is the best way to do this? USB-to-parallel adapter (anybody ...
2
votes
1answer
250 views

Can you combine two 12v DC 600mA adapters to make one 12v DC 1200mA adapter by combining the wires together and plugging both 600mA adapters in?

Can you combine two separate 12v DC 600mA adapters to make one 12v DC 1200mA adapter by simply combining the wires together and plugging both 600mA adapters in?
1
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2answers
549 views

Connecting a 3.5mm audio jack to a 12V DC power cable [closed]

My old Sky+ box had a 9V RF output that powered my 2 way satellite distribution amplifier directly in the loft. It allowed me to watch TV in two more bedrooms upstairs. Recently I had the Sky+ box ...
2
votes
1answer
101 views

Easiest way to detect a button push

I have a button that when push turns on a little light (light blinks; like a counter) - is there an easy way to hijack this signal so that my windows box can also detect if the button is pushed? I ...
0
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1answer
80 views

How would one make a MIDI to DB25 adapter?

I have a basic GamePort/MIDI cable like this: I was wondering if it is feasible to change this from working with a GamePort interface to working with a DB25 interface?
3
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3answers
237 views

Motor Driver IC Heats-up

I have a TB6612FNG motor driver module. Here is the manual of the module: http://www.nex-robotics.com/images/downloads/tb66fng%20dc%20motor%20driver%20module.pdf I ...
5
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2answers
228 views

DIY 24v to 5v usb phone charger

I want to make a adapter from a vehicles 24v to a 5v usb phone charger. Can I simply connect the wires from a cigaret lighter jack to a usb and add a resister in between (using a voltage divider)? If ...
0
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1answer
97 views

TQFP-64 to DIL Adapter

I was wondering if someone had a link to a board file for a TQFP-64 to DIL-64. Similar to this: http://www.core.st/projects/AVR32_Starter_Kit/TQFP-48_to_DIL-48_adaptor.pdf, but for 64 pins?
0
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1answer
106 views

Is grounding needed when using adapter to phone?

I am doing research on an audio plug. I wonder, is it a must to connect grounding circuit from handphone to the earphone if we use an adapter (image 1). Or can I do the connection like in image 2? ...
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1answer
163 views

How to increase Current in DC Adapter [closed]

I have an AC-DC adapter with 500mA (it was a mistake when I bought it). It has a switch to reverse the polarity and a potentiometer where voltage can be adjusted from 1.5V (min) to 12V (max). Now what ...
0
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2answers
204 views

220V AC -> 12V, 1.8A DC? [duplicate]

I am fairly new to hands-on electrical engineering (I have taken Physics II and have played with computers and electronics all my life, but am only now truly seeking to learn how to safely handle many ...
2
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3answers
335 views

Can I use a 3-wire AC adapter in a DC circuit?

I am reading through the excellent book Make Electronics and am in a chapter that suggests getting an AC adapter, cutting off the connector at the end and stripping the rubber outer coating back to ...
0
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0answers
98 views

u-229 to 3.5mm adapter

I would like to make an adapter for a u-229 connector to a 3.5mm microphone connector. Here is a link of the pins of a u-229: http://www.prc68.com/I/U229PO.shtml . I was thinking of connecting the A ...
0
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1answer
101 views

Adding AC adapter to solar powered device

I have a solar-powered LED number display whose rechargeable batteries have apparently died. I'd like to hook it up to AC power using a 3V adapter (i.e., cutting the leads from the batteries and ...
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votes
1answer
43 views

NEMA connector adapter [closed]

I was thinking about buying a commercial griddle to use in my home to expand my cooking space but I found out that it has a NEMA 6-15 type plug instead of the typical NEMA 5-15 found in homes. Since ...
0
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1answer
131 views

Is there a prebuilt PCB that does the equivalent of a wall wart for a similar price?

I am working on a project, and I need to convert 240V AC power to 5V DC to power a microprocessor. I can't use a wall wart, and I am looking for a PCB that will do the same as one - for near the same ...
0
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0answers
52 views

How much room for error (voltage and amps) do I have when replacing a power adapter? [duplicate]

I have a AC-> DC power adapter (similar to what you might find on a laptop) that has gone bad. The adapter is used to charge a 12 volt battery. I am working at a remote station, so I can't get a new ...
1
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1answer
231 views

Use an active PS/2 -> USB adapter as USB-Serial Bridge

I'm working on a small robotics project where I need to enable my old phone (Nokia 5230, shows up as USB Serial port on Windows but USB cable is straight-through) to talk to an Arduino UNO R3 (doesn't ...
0
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0answers
76 views

Combining 2 sources of ac to provide more power?

I have a device that takes 24VAC. I have two adapters that takes 120VAC and converts to 24VAC. One adapter works with the device, but I get instabilities from time to time and I wonder if it ...
0
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0answers
1k views

Convert Iphone 3.5mm pin to standartd Samsung Android 3.5mm pin

This is a simple question. I want the new Iphone EarPod to work with Samsung/Nokia phones. I tried to use the headphone to Samsung phones. Here is the result Here is the Universal 4-pole Cell ...
4
votes
1answer
82 views

Is it possible to make a multi-display adapter as an independent project?

I've been looking at the Matrox DualHead2Go, which is essentially the best/easiest way to go about using dual monitors for a MacBook Pro. Some people suggest using a USB to VGA or HDMI - but obviously ...
1
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2answers
134 views

input vs output in ac adapters

This is probably stupid, but I have become very confused and would like someone's help. I have brought some equipment from the usa, and these run on 110v. Where I live, I only have 220v. I brought an ...
1
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3answers
1k views

AC Adapter Input vs Output Power?

I have a laptop AC Adapter thats rated for 19.5v/3.34A DC output for a total of 65W. The input is rated at 100-240V/1.5A AC. My question is what is limiting the output to 65W? It seems like the input ...
2
votes
3answers
413 views

Help me identify the adapter jack

just met an industrial computer which has the following power adapter jack. how to identify this jack and where to find? (actually there are lots of different jacks here and there, how to identify ...
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4answers
3k views

Can a phone charger be adapted to charge a laptop battery? [closed]

I've obtained a laptop that has no charger. Short of buying another charger online, can a phone charger be adapted to charge the laptop's battery, provided it's disconnected from the laptop (i.e., the ...
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votes
3answers
1k views

Measuring voltage on ac adapter

I got a device (an ADSL modem) that when plugged in to an ac adapter does not seem to do anything (power light stays off). I would like to know how to measure voltage for an ac adapter to make sure ...
1
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0answers
78 views

What's the best way to integrate SPI and MSC buses?

I have two chips. The first chip has only an SPI interface. The second chip has only an MSC (microsecond channel) interface. What's the best way to integrate them? Do you know any IC manufacturer ...
12
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3answers
2k views

Cellphone charger has no transformer?

I opened up a really tiny mobile phone charger I have, to see how it is designed. The entire "charger" is integrated into a small 2-pin mains plug, 1 x 1.25 x 0.5 inch, that has an USB socket for the ...
2
votes
1answer
1k views

how to convert a Sync-on-green to VGA (seperate sync) signal?

I have a computer (VAXstation 3100/M76), that has a sync-on-green output: red --( green + sync --( blue --( I want to attach that to a standard ...
2
votes
2answers
343 views

What is the proper name or part number of a 12V DC female car adapter with leads?

I've searched hobby sites like SparkFun, Digikey, BGMicro, and Jameco. I'm starting to wonder if I'm calling this item by the wrong name. What I'm looking for, exactly, is a 12V female car adapter ...
1
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2answers
108 views

Using a vintage US touchtone phone on a the Swiss ISDN network [closed]

I have one of these phones (US touchtone phone from the '70s): and would like to use it in my house in Switzerland where the phone system is ISDN. My electrician told me it can't be used here, but ...