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Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator

Easily calculate and compute buck-boost (inverting) converter output ripple & capacitor esr calculator with accurate equations, live formulas, and expert guidance.

Positive DC input voltage.

Magnitude of inverted negative output voltage.

Load current delivered to inverted rail.

Operating PWM frequency.

Output capacitor bank capacitance.

Equivalent series resistance of output capacitor.

Calculated Result
206.4 mV

Output Voltage Ripple

Output Voltage Ripple

206.4 mV

Total Output Ripple Mv

206.4

Capacitive Ripple Mv

25.3

Esr Ripple Mv

181.1

Duty Cycle D

0.556

206.4 — mV

Calculation Breakdown

  1. Applied FormulaCalculates the pulsed capacitive charge depletion ripple and high-current ESR spike ripple on the negative output rail of an inverting buck-boost converter.\Delta V_C = \frac{I_{out} D}{C_{out} f_{sw}}, \quad \Delta V_{ESR} = I_{pk} R_{esr}, \quad D = \frac{|V_{out}|}{V_{in} + |V_{out}|}

Inverting Buck-Boost Ripple Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.052103155206Output Voltage Ripple

What Is the Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator?

This tool computes buck-boost (inverting) converter output ripple & capacitor esr calculator with high precision arithmetic.

How Does the Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator Work?

Calculates the pulsed capacitive charge depletion ripple and high-current ESR spike ripple on the negative output rail of an inverting buck-boost converter.

Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

ΔVC=IoutDCoutfsw,ΔVESR=IpkResr,D=∣Vout∣Vin+∣Vout∣\Delta V_C = \frac{I_{out} D}{C_{out} f_{sw}}, \quad \Delta V_{ESR} = I_{pk} R_{esr}, \quad D = \frac{|V_{out}|}{V_{in} + |V_{out}|}

Calculates the pulsed capacitive charge depletion ripple and high-current ESR spike ripple on the negative output rail of an inverting buck-boost converter.

How to Use the Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Buck-Boost (Inverting) Converter Output Ripple & Capacitor ESR Calculator Example

Input Values:

inputVoltageVin:12
absoluteOutputVoltageVout:15
outputLoadCurrentA:2
switchingFrequencyKhz:200
outputCapacitanceMicrofarads:220
capacitorEsrMilliohms:35
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mV.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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