US 11,927,624 B2
Method for measuring quiescent current in a switching voltage regulator
Harsh Patel, Bangalore (IN); Aalok Dyuti Saha, Bangalore (IN); Sanjeev Praphulla Chandra Nyshadham, Bangalore (IN); Subrato Roy, Bangalore (IN); and Gaurav Kumar Mittal, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,397.
Claims priority of application No. 202141028643 (IN), filed on Jun. 25, 2021.
Prior Publication US 2023/0417829 A1, Dec. 28, 2023
Int. Cl. G01R 31/30 (2006.01); G01R 19/25 (2006.01)
CPC G01R 31/3008 (2013.01) [G01R 19/2506 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for measuring a quiescent current in a switching voltage regulator, the method comprising:
generating a mathematical model of a circuit design associated with the switching voltage regulator, the mathematical model comprising measurable parameters to describe a switching current associated with a power switch of the switching voltage regulator;
fabricating a circuit comprising the switching voltage regulator based on the circuit design, the fabricated circuit comprising the power switch and conductive inputs/outputs (I/O);
coupling the conductive I/O of the fabricated circuit to a circuit test fixture;
providing electrical signals to the conductive I/O via the circuit test fixture;
measuring the measurable parameters in response to the electrical signals;
applying the measurable parameters to the mathematical model to calculate the switching current; and
calculating the quiescent current based on the switching current.