US 11,863,073 B2
DC-DC converter with adaptive zero tracking
Narayanan Seetharaman, Freising (DE); Julian Leonhard Becker Ferreira, Freising (DE); Puneet Sareen, Freising (DE); and Stefan Dietrich, Freising (DE)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Sep. 30, 2021, as Appl. No. 17/490,764.
Claims priority of provisional application 63/088,773, filed on Oct. 7, 2020.
Prior Publication US 2022/0109371 A1, Apr. 7, 2022
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01); H03K 3/0233 (2006.01)
CPC H02M 3/1584 (2013.01) [H02M 1/0009 (2021.05); H02M 1/0025 (2021.05); H03K 3/02337 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A DC-DC converter, comprising:
an error amplifier having an error output;
a compensation circuit including:
a first resistor having first and second resistor terminals, wherein the first resistor terminal is coupled to the error output;
a first switch having first and second switch terminals and a first control terminal, wherein the first switch terminal is coupled to the second resistor terminal;
a second resistor having third and fourth resistor terminals, wherein the third resistor terminal is coupled to the error output;
a second switch coupled between the fourth resistor terminal and the second switch terminal, and having a second control terminal; and
a capacitor coupled between the second switch terminal and a ground terminal.