US 11,737,190 B2
Transient suppression systems and methods in electrical circuits
Suresh Hariharan, Livermore, CA (US); Ron Vincent Ocampo, San Jose, CA (US); and Ramesh Selvaraj, San Jose, CA (US)
Assigned to Maxim Integrated Products, Inc., San Jose, CA (US)
Filed by Maxim Integrated Products, Inc., San Jose, CA (US)
Filed on Jul. 13, 2021, as Appl. No. 17/373,775.
Claims priority of provisional application 63/057,825, filed on Jul. 28, 2020.
Prior Publication US 2022/0039236 A1, Feb. 3, 2022
Int. Cl. H05B 45/30 (2020.01); H05B 45/50 (2022.01); H05B 45/38 (2020.01); H05B 45/375 (2020.01)
CPC H05B 45/50 (2020.01) [H05B 45/375 (2020.01); H05B 45/38 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling a light-emitting diode (LED) driver circuit to improve transient performance, the method comprising:
using a comparator coupled to a current regulator to monitor a load current to detect an overshoot condition, the current regulator uses a first control voltage to generate an output voltage;
using a first compensation network to store the first control voltage;
in response to a user input, transitioning from the first compensation network to a second compensation network that stores a second control voltage;
operating a switch in a mode configured to limit the load current in a first array of LEDs; and
in response to detecting an absence of the overshoot condition, operating the switch in a regular mode.