US 12,191,861 B2
Delay correction for on-time generator circuitry
Nilanjan Pal, Dallas, TX (US); and Saurav Bandyopadhyay, Dallas, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Feb. 14, 2023, as Appl. No. 18/169,138.
Prior Publication US 2024/0275368 A1, Aug. 15, 2024
Int. Cl. H03K 5/01 (2006.01); H03K 5/24 (2006.01); H03K 17/56 (2006.01); H03K 5/00 (2006.01)
CPC H03K 5/01 (2013.01) [H03K 5/24 (2013.01); H03K 17/56 (2013.01); H03K 2005/00019 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A circuit comprising:
a comparator having first and second comparator inputs and a comparator output;
a discharge switch coupled between the first comparator input and a ground terminal;
a capacitor having first and second capacitor terminals, the first capacitor terminal coupled to the first comparator input; and
a delay correction circuit comprising:
a sample-hold circuit coupled to the comparator output and the capacitor;
an amplifier having first and second amplifier inputs and an amplifier output, in which the second amplifier input is coupled to the second comparator input; and
a variable resistor having a control input coupled to the amplifier output.