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Power FAQ
General Questions
AC to AC Conversion
273-1406
273-1410
273-1440
AC to DC Conversion
273-1611
DC to AC Conversion
220-0132
220-0138
220-0144
DC to DC Conversion
273-1219
273-1228
273-1250
273-1815
273-1825
273-1830
Help & How-to's

 Power Conversion Questions

General Power Conversion Questions

How do I calculate the total current draw for multiple devices?
How do I calculate the total wattage for multiple devices?
What's the difference between continuous wattage and peak wattage? Why does it matter?
How do I read the polarity marking on my device or converter?
What is a filtered power adapter? Why does it matter?
What is a regulated power adapter? Why does it matter?
My device lists VA (volt-amps) rather than watts. How do I convert this?
I need to replace the adapter for my device, but I don't know what size plug I need. How can I find out?
How do I run mobile electronics (such as a mobile scanner with a cigarette lighter plug) off of AC power?
How do I run AC electronics with a standard pronged plug off of 12-volt vehicle power?
Why do some adapters state "not for use with battery chargers"?

General AC-to-AC Converter Questions

Why is the time wrong (or run slow/fast) when I use a foreign voltage adapter to power the timing device?
What's the difference between a transformer-based converter and a solid-state converter? Why does it matter?
What is a step-up voltage converter?
What is a step-down voltage converter?
How do I find out the electrical information on a foreign country?

General AC-to-DC Adapter Questions

When checking the adapter with a volt-meter, it registers higher voltage than it is rated for. Why?

General DC-to-AC Inverter Questions

What's the difference between continuous wattage and peak wattage? Why does it matter?
Why does a multimeter show a measured output of around 85 volts instead of the rated 120 volts?

General DC-to-DC Adapter Questions

How do I change the fuse on a DC adapter cord?

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