Subbarao Surendra Chakkirala

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Power amplifier management
- Patent number 12,107,552
- Issue date Oct 1, 2024
- QUALCOMM Incorporated
- Earl Schreyer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Hybrid class-H/predictive class-G switching amplifier architecture
- Patent number 11,876,493
- Issue date Jan 16, 2024
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Area efficient level translating trigger circuit for electrostatic...
- Patent number 11,799,287
- Issue date Oct 24, 2023
- QUALCOMM Incorporated
- Ramkumar Sivakumar
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Boost converter circuit with feedforward path for improved load reg...
- Patent number 11,689,102
- Issue date Jun 27, 2023
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Class-D amplifier with deadtime distortion compensation
- Patent number 11,683,015
- Issue date Jun 20, 2023
- QUALCOMM Incorporated
- ChienChung Yang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Current limiting for a boost converter
- Patent number 11,424,672
- Issue date Aug 23, 2022
- QUALCOMM Incorporated
- Pradeep Silva
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Capacitance modulation to mitigate pixel leakage in ultrasonic sensors
- Patent number 11,275,919
- Issue date Mar 15, 2022
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Look-ahead column sensing for fast voltage mode read in ultrasonic...
- Patent number 11,017,196
- Issue date May 25, 2021
- QUALCOMM Incorporated
- Sameer Wadhwa
- G01 - MEASURING TESTING
Information Patent Grant
Delay circuit that accurately maintains input duty cycle
- Patent number 10,944,385
- Issue date Mar 9, 2021
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Current limit boost converter
- Patent number 10,389,243
- Issue date Aug 20, 2019
- QUALCOMM Incorporated
- Subbarao Chakkirala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Boost converters having self-adaptive maximum duty-cycle-limit control
- Patent number 10,374,514
- Issue date Aug 6, 2019
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Class-H switching amplifier circuit having supply voltage proportio...
- Patent number 10,326,405
- Issue date Jun 18, 2019
- QUALCOMM Incorporated
- Sherif Galal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
POWER SUPPLY CIRCUIT WITH MULTIPLE MODES
- Publication number 20240322685
- Publication date Sep 26, 2024
- QUALCOMM Incorporated
- Subbarao Surendra CHAKKIRALA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ADAPTIVELY ADJUSTING AN INPUT CURRENT LIMIT FOR A BOOST CONVERTER
- Publication number 20230300524
- Publication date Sep 21, 2023
- QUALCOMM Incorporated
- Subbarao Surendra CHAKKIRALA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
HYBRID CLASS-H/PREDICTIVE CLASS-G SWITCHING AMPLIFIER ARCHITECTURE
- Publication number 20230253934
- Publication date Aug 10, 2023
- QUALCOMM Incorporated
- Subbarao Surendra CHAKKIRALA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AREA EFFICIENT LEVEL TRANSLATING TRIGGER CIRCUIT FOR ELECTROSTATIC...
- Publication number 20230148160
- Publication date May 11, 2023
- QUALCOMM Incorporated
- Ramkumar SIVAKUMAR
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER AMPLIFIER MANAGEMENT
- Publication number 20230108378
- Publication date Apr 6, 2023
- QUALCOMM Incorporated
- Earl Schreyer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CLASS-D AMPLIFIER WITH DEADTIME DISTORTION COMPENSATION
- Publication number 20230058434
- Publication date Feb 23, 2023
- QUALCOMM Incorporated
- ChienChung YANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SWITCHING AMPLIFIER ARCHITECTURE WITH MULTIPLE SUPPLIES
- Publication number 20220239226
- Publication date Jul 28, 2022
- QUALCOMM Incorporated
- Subbarao Surendra CHAKKIRALA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BOOST CONVERTER CIRCUIT WITH FEEDFORWARD PATH FOR IMPROVED LOAD REG...
- Publication number 20220224230
- Publication date Jul 14, 2022
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CURRENT LIMITING FOR A BOOST CONVERTER
- Publication number 20210234457
- Publication date Jul 29, 2021
- QUALCOMM Incorporated
- Pradeep SILVA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LOOK-AHEAD COLUMN SENSING FOR FAST VOLTAGE-MODE READ IN ULTRASONIC...
- Publication number 20210158001
- Publication date May 27, 2021
- QUALCOMM Incorporated
- Sameer WADHWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CAPACITANCE MODULATION TO MITIGATE PIXEL LEAKAGE IN ULTRASONIC SENSORS
- Publication number 20210158003
- Publication date May 27, 2021
- QUALCOMM Incorporated
- Subbarao Surendra CHAKKIRALA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
THIN FILM TRANSISTOR (TFT) FINGERPRINT SENSOR
- Publication number 20210110129
- Publication date Apr 15, 2021
- QUALCOMM Incorporated
- Subbarao CHAKKIRALA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HIGH SPEED LEVEL SHIFTER FOR LOW VOLTAGE TO HIGH VOLTAGE CONVERSION
- Publication number 20180337680
- Publication date Nov 22, 2018
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Class-H Switching Amplifier Circuit Having Supply Voltage Proportio...
- Publication number 20180337637
- Publication date Nov 22, 2018
- QUALCOMM Incorporated
- Sherif GALAL
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CURRENT LIMIT BOOST CONVERTER
- Publication number 20180262106
- Publication date Sep 13, 2018
- QUALCOMM Incorporated
- Subbarao CHAKKIRALA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BOOST CONVERTERS HAVING SELF-ADAPTIVE MAXIMUM DUTY-CYCLE-LIMIT CONTROL
- Publication number 20160126839
- Publication date May 5, 2016
- QUALCOMM Incorporated
- Subbarao Surendra Chakkirala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Subbarao Surendra Chakkirala

Person

Patents Grantslast 30 patents

Power amplifier management

Hybrid class-H/predictive class-G switching amplifier architecture

Area efficient level translating trigger circuit for electrostatic...

Boost converter circuit with feedforward path for improved load reg...

Class-D amplifier with deadtime distortion compensation

Current limiting for a boost converter

Capacitance modulation to mitigate pixel leakage in ultrasonic sensors

Look-ahead column sensing for fast voltage mode read in ultrasonic...

Delay circuit that accurately maintains input duty cycle

Current limit boost converter

Boost converters having self-adaptive maximum duty-cycle-limit control

Class-H switching amplifier circuit having supply voltage proportio...

Patents Applicationslast 30 patents

POWER SUPPLY CIRCUIT WITH MULTIPLE MODES

ADAPTIVELY ADJUSTING AN INPUT CURRENT LIMIT FOR A BOOST CONVERTER

HYBRID CLASS-H/PREDICTIVE CLASS-G SWITCHING AMPLIFIER ARCHITECTURE

AREA EFFICIENT LEVEL TRANSLATING TRIGGER CIRCUIT FOR ELECTROSTATIC...

POWER AMPLIFIER MANAGEMENT

CLASS-D AMPLIFIER WITH DEADTIME DISTORTION COMPENSATION

SWITCHING AMPLIFIER ARCHITECTURE WITH MULTIPLE SUPPLIES

BOOST CONVERTER CIRCUIT WITH FEEDFORWARD PATH FOR IMPROVED LOAD REG...

CURRENT LIMITING FOR A BOOST CONVERTER

LOOK-AHEAD COLUMN SENSING FOR FAST VOLTAGE-MODE READ IN ULTRASONIC...

CAPACITANCE MODULATION TO MITIGATE PIXEL LEAKAGE IN ULTRASONIC SENSORS

THIN FILM TRANSISTOR (TFT) FINGERPRINT SENSOR

HIGH SPEED LEVEL SHIFTER FOR LOW VOLTAGE TO HIGH VOLTAGE CONVERSION

Class-H Switching Amplifier Circuit Having Supply Voltage Proportio...

CURRENT LIMIT BOOST CONVERTER

BOOST CONVERTERS HAVING SELF-ADAPTIVE MAXIMUM DUTY-CYCLE-LIMIT CONTROL