Converting DC power from one voltage to another is much more complicated.

This is used to tell the operator that DC power (batteries) are being charged or used.

While using DC power, the system remains in a trouble condition.

Today's technology, however, enables users to leverage the advantages of DC power.

For example, a mobile radio installed in a locomotive would run off of 72- or 30-volt DC power.

I thought flicker shouldn't be a problem on cars, though, since they use DC power.

Two contacts are for DC power up to 1.5 kW.

The output is then usually run through a filter to produce clean DC power.

Today, about 1,600 customers still receive DC power in New York.

Until that point, special radios were made to run on DC power.