Critical Inductance in Switching Voltage Regulator Formulas

Critical Inductance refers to the minimum value of the inductance required in these converters to maintain continuous conduction mode (CCM) or continuous current flow through the inductor. And is denoted by L_x. Critical Inductance is usually measured using the Henry for Inductance. Note that the value of Critical Inductance is always positive.

Formulas to find Critical Inductance in Switching Voltage Regulator

fxCritical Value of Inductor for Buck RegulatorGo

Switching Voltage Regulator formulas that make use of Critical Inductance

fxCritical Value of Capacitor for Buck RegulatorGo

List of variables in Switching Voltage Regulator formulas

fx Duty Cycle Go

fx Resistance Go

fx Frequency Go

FAQ

What is the Critical Inductance?

Critical Inductance refers to the minimum value of the inductance required in these converters to maintain continuous conduction mode (CCM) or continuous current flow through the inductor. Critical Inductance is usually measured using the Henry for Inductance. Note that the value of Critical Inductance is always positive.

Can the Critical Inductance be negative?

No, the Critical Inductance, measured in Inductance cannot be negative.

What unit is used to measure Critical Inductance?

Critical Inductance is usually measured using the Henry[H] for Inductance. Millihenry[H], Microhenry[H] are the few other units in which Critical Inductance can be measured.

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