A pulsating direct current is a direct current (dc) that changes in value at regular or irregular intervals.
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 irregular or regular intervals (at specific frequency), but when present, is always in the same direction.
Pulsating currents are commonly created by using diode rectifiers or by DC sources connected in series with AC sources (where the amplitude of AC ≤ DC).
Famous quotes containing the words direct and/or current:
“Bryan is the least of a liar I know in public life. I have always found him direct and honest, and he never goes back on what he has said to me in private—a rare thing, if found, in public men. I found him purely frank.”
—William Howard Taft (1857–1930)
“Through this broad street, restless ever,
Ebbs and flows a human tide,
Wave on wave a living river;
Wealth and fashion side by side;
Toiler, idler, slave and master, in the same quick current glide.”
—John Greenleaf Whittier (1807–1892)