Patent ID: 11923762
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. A power converter circuit comprising:
an output stage including high-side and low-side switches coupled between a supply terminal and a ground terminal;
a controller configured to provide high-side and low-side control signals to operate the output stage to provide a regulated voltage responsive to an operating state of the controller, wherein the controller is configured to transition from an intermediate state to a high-side on (HSON) state, in which the high-side control signal is provided to turn on the high-side switch, responsive to (i) the supply terminal having a voltage less than a supply voltage threshold, (ii) the regulated voltage having a voltage less than a regulated voltage threshold, and (iii) current through the high-side switch being less than a current limit threshold;
a current limit comparator configured to provide a current comparator output signal to the controller responsive to a comparison of a signal representative of the current through the high-side switch and the current limit threshold;
a switch comparator configured to provide a switch comparator output signal to the controller responsive to a comparison of a signal representative of the voltage at a switch output terminal and a switch reference voltage; and
a feedback comparator configured to provide a feedback comparator output signal to the controller responsive to a comparison of a signal representative of the regulated voltage at a feedback terminal and the regulated voltage threshold.