Tagged Questions
0
votes
0answers
163 views
Step Up Voltage Adapter 110v to 220v [closed]
I'm thinking of buying http://www.ebay.ca/itm/Step-Up-Voltage-Converter-Adapter-110V-US-to-220V-US-EU-Black-/260958491469?pt=Travel_Adapters_Converters&hash=item3cc256934d because it's cheap. But ...
3
votes
1answer
70 views
Can I power an interactive 'live' wall with copper tape and a 15v ac adapter?
I'm working on a class project to make a living wall with LEDs, paint, and copper tape spiral magnet speakers. I have a 15v ac adapter to power the wall and copper tape to connect the LEDs in parallel ...
-1
votes
3answers
309 views
Use a 12 volt bulb in 110 AC socket? [closed]
If I were go get this light bulb (with the following specs). Would there be a way to use it in a standard U.S. light socket?
...
0
votes
1answer
381 views
110V AC/ 9V AC power adapter (America) Vs. 220V AC/ 9V AC power adapter (Europe) [duplicate]
Possible Duplicate:
Choosing power supply, how to get the voltage and current ratings?
I have a device that I brought to Europe from America. It has a 110V AC/ 9V AC power adapter that ...
0
votes
2answers
136 views
Current/milliamp rating of adapter versus device requirement [duplicate]
Possible Duplicate:
Choosing power supply, how to get the voltage and current ratings?
My DC adapter for a cordless mike has broken It' ratings are:
Input 230-240V ~ 50Hz 30mA
Output 20V ...
5
votes
1answer
346 views
Laptop power supplies - why the spectrum of voltages and connectors?
Why do are laptops designed with different Voltage input requirements? Is this just a power requirement consideration, or something more technical? Maybe the lithium battery requirements? (And - for ...
2
votes
5answers
1k views
acceptable bounds for replacement DC adapter [duplicate]
Possible Duplicate:
Chosing power supply, how to get the voltage and current ratings?
I've got a broken gadget that is discontinued. The only thing broken is the power supply (verified by ...
-2
votes
3answers
573 views
Simple voltage/current question about modifying a voltage-regulated adapter
I have a 7.5V, 2A, Radio Shack AC adapter and I need it to be a 7.5V, 1.5A power supply. It has one of those tip-ring style plugs on the DC end that plugs into a device to provide power.
I need the ...
5
votes
3answers
3k views
Reading and understanding electrical specs on laptop AC adapters
My Dell laptop comes with an AC adapter with the following specs:
65 W
Input AC: 100 - 240 V, ~1.5 A, 50 - 60 Hz
Output DC: 19.5 V, 3.34 A
My HP laptop:
...
8
votes
2answers
805 views
Is it normal for DC wall adapter power supplies to provide voltages above the nominal ones?
When I measure a 9V DC wall adapter power supply with a multimeter it shows 11.8V. When connected to my board this voltage lowers to 10V. Is this normal? Should I be afraid of toasting my 1117CD-5.0 ...
4
votes
3answers
722 views
Correct DC Adapter type to use for Arduino
What's the correct DC Adapter to use with Arduino? Voltage etc?
