Pulse Width Modulated Dc-dc Converters May 2026

A higher duty cycle increases the average output voltage; a lower duty cycle decreases it.

While the pulse width varies, the frequency typically remains constant, often in the kilohertz (kHz) to megahertz (MHz) range to minimize the size of passive components. Pulse Width Modulated DC-DC Converters

Steps up a lower input voltage to a higher output voltage. A higher duty cycle increases the average output

Steps down a higher input voltage to a lower output voltage. the frequency typically remains constant

An LC filter (inductor and capacitor) is used to smooth the pulsed signal into a stable DC output. Primary Converter Topologies