Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/297
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including particular power supply circuitry
Description: Subject matter including specific details or distinctive characteristics of the source of electrical energy applied to the semiconductor amplifying device.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
8710925 RF power amplifier circuit with mismatch tolerance Apr. 29, 2014
8704599 Switching power supply circuit Apr. 22, 2014
8692620 Power amplifier Apr. 8, 2014
8693676 Power efficiency of a line driver Apr. 8, 2014
8686792 Amplifying device Apr. 1, 2014
8688033 Antenna system, in particular mobile communication antenna system, and associated transmission and control device Apr. 1, 2014
8687826 Amplifier circuit Apr. 1, 2014
8680710 Analog power sequencer and method Mar. 25, 2014
8680925 Amplifier arrangement and method for operating an amplifier arrangement Mar. 25, 2014
8669811 Radio-frequency power amplifier with fast envelope tracking Mar. 11, 2014
8665021 Apparatus and methods for amplifier power supply control Mar. 4, 2014
8665018 Integrated circuit, wireless communication unit and method for a differential interface for an envelope tracking signal Mar. 4, 2014
8659356 Power supply circuit of power amplifier, and terminal Feb. 25, 2014
8653886 Method and arrangement in a mobile communications system Feb. 18, 2014
8653891 Collector boost Feb. 18, 2014
8643435 Apparatus and method for expanding operation region of power amplifier Feb. 4, 2014
8638170 Single supply headphone driver/charge pump combination Jan. 28, 2014
8633772 Power conversion circuit and electronic device with power conversion circuit Jan. 21, 2014
8633766 Pseudo-envelope follower power management system with high frequency ripple current compensation Jan. 21, 2014
8633768 Amplifying device Jan. 21, 2014
8605915 Class G audio amplifiers and associated methods of operation Dec. 10, 2013
8598950 Apparatus and methods for capacitive load reduction Dec. 3, 2013
8598952 Voltage variable type digital audio amplifying device for noise compensation and method thereof Dec. 3, 2013
8587380 Saturation protection of a regulated voltage Nov. 19, 2013
8587379 Power amplifier with stabilising network Nov. 19, 2013
8588713 Power management system for multi-carriers transmitter Nov. 19, 2013
8576011 Amplifier with high power supply noise rejection Nov. 5, 2013
8570104 Amplifier assembly having controlled return of power loss Oct. 29, 2013
8570105 Power control Oct. 29, 2013
8558614 Amplification device Oct. 15, 2013
8542061 Charge pump based power amplifier envelope power supply and bias power supply Sep. 24, 2013
8543072 High accuracy programmable gain amplifier Sep. 24, 2013
8536943 Selective narrowband feedback for a digital predistorter Sep. 17, 2013
8538357 Switchable VRAMP limiter Sep. 17, 2013
8531240 Collector boost Sep. 10, 2013
8525595 Vramp limiting using resistors Sep. 3, 2013
8519788 Boost charge-pump with fractional ratio and offset loop for supply modulation Aug. 27, 2013
8514016 Single die power amplifier with closed loop power control Aug. 20, 2013
8514018 Signal alignment for envelope tracking system Aug. 20, 2013
8514024 High power-supply rejection ratio amplifying circuit Aug. 20, 2013
8514025 Amplifier circuit and method of amplifying a signal in an amplifier circuit Aug. 20, 2013
8508297 Envelope amplifier Aug. 13, 2013
8502607 Leakage current reduction in a power regulator Aug. 6, 2013
8493142 Amplifier, transmission device, and amplifier control method Jul. 23, 2013
8493141 Pseudo-envelope following power management system Jul. 23, 2013
8476978 Headphone driver/charge pump combination Jul. 2, 2013
8461928 Constant-gain power amplifier Jun. 11, 2013
8461931 Wideband RF power amplifier for multi-mode multi-band applications Jun. 11, 2013
8446216 Anti-pop circuit May. 21, 2013
8446219 Class-G line driver control signal May. 21, 2013

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16










 
 
  Recently Added Patents
Coupling device having piercing member
High power fiber amplifier with stable output
Synergistic fungicidal interactions of 5-fluorocytosine and other fungicides
Facial recognition using a sphericity metric
Web-based system and method for video analysis
Etching apparatus and methods
Disposable and tamper-resistant RFID lock
  Randomly Featured Patents
Non-polluting shock absorber and level controller fluids
Method for securing an authentication and key agreement protocol
Verification support apparatus, verification support method, and computer product
Method of forming a lower electrode of a capacitor
c-Met modulators and method of use
Laminae separating dispenser and method of use
Elevator safety arrangement having safety spaces
Water wiping apparatus and method for removing standing water from flat and contoured surfaces
Tray
Semiconductor device in which zinc oxide is used as a semiconductor material and method for manufacturing the semiconductor device