Patent ID: 11899480
Assignee: ANALOG DEVICES, INC.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A voltage regulator circuit comprising:
a main regulator circuit loop including:
a first error amplifier including an input coupled to an output of the voltage regulation circuit; and
a pass device coupled to the output of the first amplifier circuit and the output of the voltage regulation circuit, the first error amplifier to regulate an output voltage at the output of the voltage regulation circuit; and

a secondary circuit loop including:
a second error amplifier having higher gain than the first error amplifier circuit and including an input operatively coupled to the output of the voltage regulation circuit;
a shunt device having a shunt input coupled to the pass device and a control input coupled to the output of the second error amplifier; and
wherein second error amplifier activates the shunt device to bypass a load at the output of the regulation circuit when the output voltage overshoots a target output voltage.