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Class D power amplifiers Switching amplifiers
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H03F3/217
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Parent Industries
H
ELECTRICITY
H03
Electronic circuits
H03F
AMPLIFIERS
H03F3/00
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Current Industry
H03F3/217
Class D power amplifiers Switching amplifiers
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Patents Grants
last 30 patents
Information
Patent Grant
Logarithmic amplifiers in silicon microphones
Patent number
12,368,421
Issue date
Jul 22, 2025
Infineon Technologies AG
Jose Luis Ceballos
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Driver stage short circuit detection
Patent number
12,360,175
Issue date
Jul 15, 2025
Cirrus Logic Inc.
Ramin Zanbaghi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Maximum power detection and automatic gain control for capacitive c...
Patent number
12,362,713
Issue date
Jul 15, 2025
Texas Instruments Incorporated
Junmin Jiang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Photoelectric conversion apparatus, photoelectric conversion system...
Patent number
12,355,406
Issue date
Jul 8, 2025
Canon Kabushiki Kaisha
Hideo Kobayashi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
D/A converter
Patent number
12,348,242
Issue date
Jul 1, 2025
Rohm Co., Ltd.
Mitsuteru Sakai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Driver circuitry and operation
Patent number
12,323,055
Issue date
Jun 3, 2025
Cirrus Logic Inc.
Yongjie Cheng
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Signal amplifier
Patent number
12,323,112
Issue date
Jun 3, 2025
Renesas Design (UK) Limited
Anthony Gribben
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switching module
Patent number
12,316,285
Issue date
May 27, 2025
Kyosan Electric Mfg. Co., Ltd.
Hiroshi Kunitama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Booster stage circuit for power amplifier
Patent number
12,308,796
Issue date
May 20, 2025
AXIGN B.V.
Daniel Schinkel
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Calibration of pulse width modulation amplifier system
Patent number
12,308,805
Issue date
May 20, 2025
Cirrus Logic Inc.
John L. Melanson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switching audio amplifier with improved voltage supply control
Patent number
12,301,183
Issue date
May 13, 2025
Skyworks Solutions, Inc.
Mark R. Peting
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Class-D amplifier for reducing audio distortion
Patent number
12,301,182
Issue date
May 13, 2025
Skyworks Solutions, Inc.
Mark R. Peting
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Audio amplifer with fast wake-up power supply
Patent number
12,267,049
Issue date
Apr 1, 2025
RGB Systems, Inc.
Eric Mendenhall
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplifier
Patent number
12,262,556
Issue date
Mar 25, 2025
Murata Manufacturing Co., Ltd.
Shaojun Ma
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Audio signal modulation and amplification circuit
Patent number
12,255,589
Issue date
Mar 18, 2025
Realtek Semiconductor Corp.
Che-Hung Lin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Portable battery pack for wirelessly charging body-worn devices thr...
Patent number
12,249,843
Issue date
Mar 11, 2025
Humane, Inc.
Imran A. Chaudhri
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Amplification systems and methods with one or more channels
Patent number
12,218,632
Issue date
Feb 4, 2025
On-Bright Electronics (Shanghai) Co., Ltd.
Tingzhi Yuan
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electronic device and electroacoustic conversion apparatus
Patent number
12,218,638
Issue date
Feb 4, 2025
SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Hironori Nakahara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Butted body contact for SOI transistor and amplifier circuit
Patent number
12,205,954
Issue date
Jan 21, 2025
pSemi Corporation
Simon Edward Willard
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dynamic control of output driver in a switching amplifier
Patent number
12,191,825
Issue date
Jan 7, 2025
Diodes Incorporated
Rohit Arora
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low voltage system for audio amplifiers
Patent number
12,191,824
Issue date
Jan 7, 2025
Skyworks Solutions, Inc.
Mark R. Peting
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Matchless plasma source for semiconductor wafer fabrication
Patent number
12,193,138
Issue date
Jan 7, 2025
Lam Research Corporation
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Switchable amplifier
Patent number
12,184,247
Issue date
Dec 31, 2024
Omicron Electronics GmbH
Pedro Pérez De Ayala Rull
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Driving circuit of loudspeaker and method for generating current sa...
Patent number
12,184,246
Issue date
Dec 31, 2024
ELITE SEMICONDUCTOR MICROELECTRONICS TECHNOLOGY INC.
Che-Wei Hsu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Gain calibration for audio amplifiers
Patent number
12,176,868
Issue date
Dec 24, 2024
Skyworks Solutions, Inc.
Spencer David Leuenberger
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Splice-point determined zero-crossing management in audio amplifiers
Patent number
12,166,457
Issue date
Dec 10, 2024
Cirrus Logic, Inc.
John L. Melanson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Loop filter stabilization for class D amplifier
Patent number
12,166,456
Issue date
Dec 10, 2024
Skyworks Solutions, Inc.
Mark R. Peting
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Hearing device comprising an amplifier system for minimizing variat...
Patent number
12,155,998
Issue date
Nov 26, 2024
Oticon A/S
Vijay Kumar Bhat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Audio processing circuit whose output stage has different configura...
Patent number
12,148,440
Issue date
Nov 19, 2024
Realtek Semiconductor Corp.
Tsung-Peng Chuang
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Circuit element pair matching method and circuit
Patent number
12,143,078
Issue date
Nov 12, 2024
Cirrus Logic, Inc.
Edmund M. Schneider
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
LOAD CURRENT SENSING IN A SWITCHED DRIVER STAGE
Publication number
20250237680
Publication date
Jul 24, 2025
Nuvoton Technology Corporation
PETER HOLZMANN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLASS-D AUDIO AMPLIFIER
Publication number
20250233562
Publication date
Jul 17, 2025
Elite Semiconductor Microelectronics Technology Inc.
Hsin-Yuan CHIU
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATION
Publication number
20250220801
Publication date
Jul 3, 2025
LAM RESEARCH CORPORATION
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CIRCUITS, DEVICES AND METHODS RELATED TO AUDIO AMPLIFIERS HAVING GA...
Publication number
20250219601
Publication date
Jul 3, 2025
Skyworks Solutions, Inc.
Spencer David LEUENBERGER
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AMPLIFICATION DEVICE AND OPERATION METHOD THEREOF
Publication number
20250219600
Publication date
Jul 3, 2025
Samsung Electronics Co., Ltd.
Jihun LEE
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AMPLIFYING CIRCUIT AND AMPLIFYING DEVICE
Publication number
20250219603
Publication date
Jul 3, 2025
Samsung Electronics Co., Ltd.
Jihun LEE
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATION
Publication number
20250212310
Publication date
Jun 26, 2025
LAM RESEARCH CORPORATION
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATION
Publication number
20250203749
Publication date
Jun 19, 2025
LAM RESEARCH CORPORATION
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AUTO-CALIBRATION DRIVING STRENGTH SYSTEM FOR CLASS-D AMPLIFIER
Publication number
20250202444
Publication date
Jun 19, 2025
Nuvoton Technology Corporation
Chang-Xian Wu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATION
Publication number
20250203748
Publication date
Jun 19, 2025
LAM RESEARCH CORPORATION
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LOW POWER DC-AC COUPLED PRE-AMPLIFIER CIRCUITS FOR HIGH-SPEED LINK...
Publication number
20250184188
Publication date
Jun 5, 2025
STMicroelectronics International N.V.
Sameer VASHISHTHA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DELAY-LINE METHOD FOR SLEW RATE CONTROL FOR CLASS D DRIVER
Publication number
20250167741
Publication date
May 22, 2025
Nuvoton Technology Corporation
Bal Sandhu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLASS D AMPLIFIER CAPABLE OF ANTI-CLIPPING
Publication number
20250167740
Publication date
May 22, 2025
RICHTEK TECHNOLOGY CORPORATION
Wen-Hsuan Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLASS-D AUDIO AMPLIFIER AND NOISE ELIMINATION DEVICE THEREOF
Publication number
20250150038
Publication date
May 8, 2025
Elite Semiconductor Microelectronics Technology Inc.
Hsin-Yuan Chiu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHODS AND APPARATUS TO MODULATE SIGNALS USING MULTI-CLASS MODULAT...
Publication number
20250141412
Publication date
May 1, 2025
TEXAS INSTRUMENTS INCORPORATED
Jianquan Liao
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
REDUCTION OF CLICK AND POP NOISE IN AN AMPLIFIER
Publication number
20250141408
Publication date
May 1, 2025
TEXAS INSTRUMENTS INCORPORATED
Aditya SUNDAR
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DYNAMIC CONTROL OF OUTPUT DRIVER IN A SWITCHING AMPLIFIER
Publication number
20250132738
Publication date
Apr 24, 2025
DIODES INCORPORATED
Rohit Arora
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Butted Body Contact for SOI Transistor, Amplifier Circuit and Metho...
Publication number
20250133823
Publication date
Apr 24, 2025
pSemi Corporation
Simon Edward Willard
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLASS-D AMPLIFIER DEVICE FOR HAPTIC APPLICATIONS
Publication number
20250125779
Publication date
Apr 17, 2025
MICROCHIP TECHNOLOGY INCORPORATED
Razvan Costache
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BOOSTER STAGE CIRCUIT FOR POWER AMPLIFIER
Publication number
20250119101
Publication date
Apr 10, 2025
Axign B.V.
Daniel SCHINKEL
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MODULATOR INTEGRATED CIRCUIT PACKAGE
Publication number
20250119110
Publication date
Apr 10, 2025
Cirrus Logic International Semiconductor Ltd.
John P. LESSO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
POWER-ON AND SHUT-DOWN POP REDUCTION IN AUDIO SYSTEMS
Publication number
20250112600
Publication date
Apr 3, 2025
TEXAS INSTRUMENTS INCORPORATED
Pourya Assem
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MATCHLESS PLASMA SOURCE FOR SEMICONDUCTOR WAFER FABRICATION
Publication number
20250106976
Publication date
Mar 27, 2025
LAM RESEARCH CORPORATION
Maolin Long
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
VOLTAGE-TO-TIME-TO-VOLTAGE AMPLIFIER (VTVA) USING TIME DELAY
Publication number
20250096750
Publication date
Mar 20, 2025
QUALCOMM Incorporated
Zeljko IGNJATOVIC
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AMPLITUDE MODULATION TRANSMISSION DEVICE
Publication number
20250096909
Publication date
Mar 20, 2025
SKAIChips Co., Ltd.
Kang Yoon LEE
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD AND APPARATUS TO PROVIDE FREQUENCY TRANSLATION OF AUDIO SIGN...
Publication number
20250088396
Publication date
Mar 13, 2025
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL AMPLIFIER
Publication number
20250088151
Publication date
Mar 13, 2025
Renesas Design (UK) Limited
Holger PETERSEN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
LOAD DETECTION DEVICE FOR AUDIO AMPLIFIER SYSTEM
Publication number
20250088150
Publication date
Mar 13, 2025
Elite Semiconductor Microelectronics Technology Inc.
Isaac Y. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for Improving Sound Play Effect and Related Apparatus
Publication number
20250080062
Publication date
Mar 6, 2025
Honor Device Co., Ltd.
Jing Zhao
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AMPLIFIER CIRCUIT AND METHOD OF GENERATING AN AMPLIFIED SIGNAL
Publication number
20250070723
Publication date
Feb 27, 2025
SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Jingchu HE
H03 - BASIC ELECTRONIC CIRCUITRY