公开(公告)号：US20240258925A1

公开(公告)日：2024-08-01

申请号：US18162017

申请日：2023-01-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yichao TANG ,  Jianbo GOU ,  Jiana LOU ,  Duo LI

IPC: H02M3/158 ,  H02M1/00 ,  H02M3/07 ,  H02M7/483

CPC classification number: H02M3/1582 ,  H02M1/0095 ,  H02M3/076 ,  H02M7/4837

Abstract: A boost converter control method includes: obtaining a peak current reference signal; obtaining a current sense signal; obtaining a flying capacitor (CFLY) voltage error feedback signal; and providing switch control signals during a peak current limit mode responsive to the peak current reference signal, the current sense signal, and the CFLY voltage error feedback signal.

公开(公告)号：US20240237169A1

公开(公告)日：2024-07-11

申请号：US18150839

申请日：2023-01-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yichao TANG ,  Jiana LOU

IPC: H05B45/325 ,  H05B45/10

CPC classification number: H05B45/325 ,  H05B45/10

Abstract: A light emitting diode (LED) dimming circuit includes an amplifier, a switch, a pulse extension circuit, and a reference shaping circuit. The amplifier has an amplifier output, a first amplifier input, and a second amplifier input. The first amplifier input is coupled to a current sense terminal. The switch has a first switch terminal, a second switch terminal, and a switch control input. The first switch terminal is coupled to the amplifier output. The pulse extension circuit has an extended pulse output and a pulse input. The extended pulse output is coupled to the switch control input. The pulse input is coupled to a pulse width modulation (PWM) terminal. The reference shaping circuit has a reference input and reference control input. The reference input is coupled to the second amplifier input. The reference control input is coupled to the PWM terminal.