1 Answer
A buck-boost converter can be either inverting or non-inverting, depending on the configuration.
So, while a buck-boost converter is typically inverting, it can be designed to be non-inverting depending on the circuit configuration.
- Inverting Buck-Boost Converter: This is the most common type. In this configuration, the output voltage is of opposite polarity (negative) relative to the input voltage. So, if you apply a positive voltage at the input, the output will be a negative voltage (for example, a 5V input would give a -5V output). This happens because the converter inverts the polarity of the voltage as part of the conversion process.
- Non-Inverting Buck-Boost Converter: In this configuration, the output voltage maintains the same polarity as the input voltage. That means if you apply a positive voltage at the input, the output will also be positive (for example, 5V in and 5V out). This type of buck-boost converter is less common but still used in specific applications.
So, while a buck-boost converter is typically inverting, it can be designed to be non-inverting depending on the circuit configuration.