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.

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

Steps up a lower input voltage to a higher output voltage.

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

PWM DC-DC converters are categorized based on their ability to step voltage up or down:

Can either step up or step down the voltage, though it often produces an inverted (negative) output voltage relative to the input. Key Advantages

The primary mechanism of a PWM converter is the , which is the ratio of the switch "on-time" ( Toncap T sub o n end-sub ) to the total switching period (