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

Claim 0:
1. A circuit comprising:
a supply comparator having a supply input, a supply reference input and a supply comparator output, the supply input coupled to a supply input terminal, the supply reference input configured to receive a supply reference voltage;
a controller having a comparator input, a high-side output and a low-side output, the comparator input coupled to the supply comparator output;
a high-side switch having a control input, the high-side switch coupled between the supply input and a switch output terminal, the high-side output coupled to the control input of the high-side switch;
a low-side switch having a control input, the low-side switch coupled between the switch output terminal and a ground terminal, the low-side output coupled to the control input of the low-side switch;
a current limit comparator having a current input, a current reference input and a current comparator output, the current input configured to receive a current signal representative of current through the high-side switch, the current reference input configured to receive a current reference signal, the current comparator output coupled to a current control input of the controller;
a switch comparator having a switch input, a switch reference input and a switch comparator output, the switch input coupled to the switch output terminal, the switch reference input configured to receive a negative reference signal, the switch comparator output coupled to a switch control input of the controller; and
a feedback comparator having a regulated voltage input, a feedback reference input and a feedback comparator output, the regulated voltage input coupled to a feedback terminal, the feedback reference input configured to receive a feedback reference voltage, the feedback comparator output coupled to a feedback input of the controller.