US 12,003,229 B2
Transistor short circuit protection
Cetin Kaya, Plano, TX (US); Nathan Richard Schemm, Rowlett, TX (US); and Yong Xie, Plano, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 15, 2021, as Appl. No. 17/348,521.
Prior Publication US 2022/0399884 A1, Dec. 15, 2022
Int. Cl. H02H 7/00 (2006.01); G01K 7/02 (2021.01); G01R 1/20 (2006.01); G01R 19/165 (2006.01); G05F 1/46 (2006.01); H03K 5/24 (2006.01); H03K 17/082 (2006.01)
CPC H03K 17/0822 (2013.01) [G01K 7/02 (2013.01); G01R 1/203 (2013.01); G01R 19/16538 (2013.01); G05F 1/461 (2013.01); H03K 5/24 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A short circuit detection circuit, comprising:
a current terminal;
a sense transistor including:
a first current terminal coupled to the current terminal; and
a second current terminal;
a sense resistor including:
a first terminal coupled to the second current terminal of the sense transistor; and
a second terminal;
an amplifier including:
a first input coupled to the first terminal of the sense resistor;
a second input coupled to the second terminal of the sense resistor; and
an output; and
a resistor-capacitor ladder circuit comprising:
an input coupled to the output of the amplifier.