Main Page | See live article | Alphabetical index In telecommunication, a pulsating direct current is a direct current (dc) that changes in value at regular or irregular intervals. Note: A pulsating direct current may change in value, i.e., be always present but at different levels, or it may be a current that is interrupted completely at regular or irregular intervals, but when present, is always in the same direction. Source: from Federal Standard 1037C This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.