Patent ID: 10804802

Abstract:
A power converter comprises a high side switching element and a low side switching element arranged in series between an input terminal of the power converter and a reference terminal. A first feedback circuit of the power converter is configured to control an output voltage or an output current at an output terminal of the power converter. The first feedback circuit comprises a first comparator configured to generate a first control signal for controlling the switching of the switching elements by comparing a first error voltage with a first ramp signal. A second feedback circuit of the power converter is also configured to control said output voltage or said output current. The second feedback circuit comprises a second comparator configured to generate a second control signal by comparing a second error voltage with a second ramp signal. A selective clamping unit is configured to determine if the first error voltage is larger than the second error voltage, and to reduce the first error voltage if it is determined that the first error voltage is larger than the second error voltage.