Patents by Inventor Jinhuang Lu

Jinhuang Lu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11394301
    Abstract: For inductor-based DC-DC converters, a current shunt switch can provide an alternate path for the inductor current to flow that does not include the output capacitor. An amplifier circuit can be included and coupled with a control node of the current shunt switch to adjust a voltage on the control node to control an amount of inductor current diverted away from the output node. A fast linear loop can be included to ensure smooth transitions when engaging or disengaging the current shunt switch. These techniques can minimize the amount and duration of the subsequent negative output voltage excursion, which can be dependent on the specific ESL and ESR values of the output voltage capacitor, for the cases when the final value of the step-down load-transient is not zero. These techniques can improve a positive output voltage response caused by an output load transient in the negative direction.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: July 19, 2022
    Assignee: Analog Devices, Inc.
    Inventors: Eko Lisuwandi, Jinhuang Lu, Mark Robert Vitunic