US 12,081,118 B2
Closed loop commutation control for a switching power converter
Pavol Balaz, Freising (DE)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Mar. 29, 2023, as Appl. No. 18/191,916.
Application 18/191,916 is a division of application No. 17/193,724, filed on Mar. 5, 2021, granted, now 11,641,158.
Claims priority of provisional application 62/985,722, filed on Mar. 5, 2020.
Prior Publication US 2023/0231471 A1, Jul. 20, 2023
Int. Cl. H02M 1/08 (2006.01); H02M 1/44 (2007.01)
CPC H02M 1/44 (2013.01) [H02M 1/08 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A system, comprising:
a gate driver having a gate driver output, wherein the gate driver is configured to provide a first current at the gate driver output, the gate driver including:
a resistor having first and second resistor terminals;
a first capacitor having first and second capacitor terminals;
a first transistor coupled between the first capacitor terminal and a switching terminal, and having a first gate, wherein the first gate is coupled to the gate driver output;
a second transistor coupled between the first resistor terminal and the first gate, and having a second gate, wherein the second gate is coupled to the second resistor terminal;
a third transistor having a current terminal coupled to the second gate, and having a third gate, wherein the third gate is coupled to the second capacitor terminal, and the third transistor is configured to provide a second current through the resistor; and
a second capacitor coupled between the third gate and a ground terminal;
wherein the first capacitor is configured to provide a voltage to the third gate for modulating the second current.