公开(公告)号：US20210013805A1

公开(公告)日：2021-01-14

申请号：US16927558

申请日：2020-07-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Robert Allan NEIDORFF ,  Saurav BANDYOPADHYAY ,  Ramanathan RAMANI

IPC: H02M3/158 ,  H02M3/157 ,  H02M1/08

Abstract: In some examples, a system includes a voltage source terminal, a voltage reference terminal, a field effect transistor (FET), a current source, a comparator, and adjustment circuitry. The FET has a gate terminal and a non-gate terminal, the gate terminal coupled to the voltage source terminal. The current source is coupled to the non-gate terminal. The comparator has a comparator output and first and second comparator inputs, the first comparator input coupled to the non-gate terminal, and the second comparator input coupled to the voltage reference terminal. The adjustment circuitry has a circuitry input and a circuitry output, the circuitry input coupled to the comparator output, and the adjustment circuitry configured to adjust the circuitry output responsive to the circuitry input, in which the adjustment reduces a drive strength of the circuit.