US 12,341,427 B2
Skip clamp circuit for DC-DC power converters
Hongcheng Xu, Freising (DE); Konrad Wagensohner, Mauern (DE); and Michael Schlenker, Marzling (DE)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Feb. 16, 2023, as Appl. No. 18/170,085.
Claims priority of provisional application 63/320,164, filed on Mar. 15, 2022.
Prior Publication US 2023/0299675 A1, Sep. 21, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/08 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuit comprising:
a first amplifier having first and second amplifier inputs and a first amplifier output, wherein the first amplifier input is coupled to a reference voltage terminal, and the second amplifier input is coupled to a voltage feedback terminal;
a second amplifier having third and fourth amplifier inputs and second and third amplifier outputs, wherein the third amplifier input is coupled to the first amplifier output;
a first switch having first and second switch terminals, wherein the second switch terminal is coupled to the fourth amplifier input;
a resistor coupled between the first amplifier output and the first switch terminal;
a third amplifier having fifth and sixth amplifier inputs and a fourth amplifier output, wherein the fifth amplifier input is coupled to the second amplifier output, and the sixth amplifier input is coupled to the third amplifier output; and
a second switch having third and fourth switch terminals, wherein the third switch terminal is coupled to the fourth amplifier output, and the fourth switch terminal is coupled to the first amplifier output.