Calculate output voltage, current, and duty cycle for an inverting DC-DC converter.
Converter Parameters
Calculation Results
Enter parameters to calculate (Polarity is inverted)
About this calculator
Quick Reference
VinInput DC Voltage
VoutOutput DC Voltage (Inverted)
DDuty Cycle (0 to 1)
CCMContinuous Conduction Mode
Overview
The inverting buck-boost converter is a DC-DC converter that has an output voltage magnitude that is either greater than or less than the input voltage magnitude, and has an inverted polarity.
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Pro Tips
Duty cycle (D) is the ratio of switch-on time to the total cycle time.
Vout is negative relative to Vin.
At D = 0.5 (50%), |Vout| = |Vin|.
At D > 0.5, it acts as a step-up (boost) converter.
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Fun Facts
"This converter is widely used in battery-powered devices to provide a negative voltage from a positive battery."
"The inductor stores energy when the switch is closed and releases it to the output when the switch is open."
"Ideal calculations assume 100% efficiency and continuous conduction mode (CCM)."
