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Class Information
Number: 330/207P
Name: Amplifiers > Miscellaneous > Amplifier protection means
Description:










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8680926 Amplification circuit comprising input signal limiting network Mar. 25, 2014
8674769 Power amplifier protection circuit, communication device, and method Mar. 18, 2014
8644777 System and method for power amplifier over-voltage protection Feb. 4, 2014
8487705 Protection circuit for radio frequency power amplifier Jul. 16, 2013
8476979 High-efficiency power module Jul. 2, 2013
8451052 Instrumentation input systems May. 28, 2013
8421540 Method and apparatus for run-time short circuit protection for amplifiers Apr. 16, 2013
8416956 Protected digital audio driver Apr. 9, 2013
8310313 Highly efficient class-G amplifier and control method thereof Nov. 13, 2012
8299853 Class D amplifier Oct. 30, 2012
8289076 Amplifying circuit Oct. 16, 2012
8274333 Method and apparatus for protecting devices in an RF power amplifier Sep. 25, 2012
8228119 Amplifying circuit Jul. 24, 2012
8222960 RF power amplifier Jul. 17, 2012
8218776 Surge protection circuit for audio output device Jul. 10, 2012
8198942 Integrated thermoelectric protection circuit for depletion mode power amplifiers Jun. 12, 2012
8193860 Method and apparatus for automatically controlling an XNN.RTM. enhancement circuitry feeding a power amplifier Jun. 5, 2012
8164389 Overdrive protection circuit Apr. 24, 2012
8130041 Power amplifier device Mar. 6, 2012
8054129 Class D amplifier Nov. 8, 2011
8022763 Amplifier failure detection apparatus Sep. 20, 2011
7982535 AMP output protective circuit for LCD panel source driver Jul. 19, 2011
7924090 Amplifying device Apr. 12, 2011
7855604 Protection circuit and method for RF power amplifiers in WLAN transceivers Dec. 21, 2010
7847632 Short-circuit detecting circuit Dec. 7, 2010
7795966 Balanced amplifier with protection circuit Sep. 14, 2010
7760027 Power amplifier output voltage reduction method Jul. 20, 2010
7755432 Short circuit protection circuits and methods Jul. 13, 2010
7710204 Adaptive protection circuit for a power amplifier May. 4, 2010
7705673 Over-current sensing during narrow gate drive operation of class D output stages Apr. 27, 2010
7696827 Power amplifier system provided with improved protection function Apr. 13, 2010
7692491 Radio-frequency power amplifier Apr. 6, 2010
7626456 Overdrive control system Dec. 1, 2009
7619481 Circuit for inhibiting over-current in power amplifier Nov. 17, 2009
7595696 Power amplifier Sep. 29, 2009
7586369 Pulse modulation type electric power amplifier Sep. 8, 2009
7551034 Saturation handling Jun. 23, 2009
7525389 Signal amplifier circuit with a limiting voltage device Apr. 28, 2009
7489199 Saturation detector and warning circuit including clamp Feb. 10, 2009
7482870 Class D amplifier Jan. 27, 2009
7482877 Power protecting apparatus and method for power amplifier Jan. 27, 2009
7477107 Protection circuit and method for RF power amplifiers in WLAN transceivers Jan. 13, 2009
7459979 Semiconductor indicator for voltage diagnostics in power amplifiers Dec. 2, 2008
7449959 Methods and apparatus to detect impedance at an amplifier output Nov. 11, 2008
7394312 Re-configurable amplifier protection apparatus and method Jul. 1, 2008
7391267 Output circuit Jun. 24, 2008
7375589 Power amplifier system provided with improved protection function May. 20, 2008
7362871 Audio amplifier circuit and audio IC having the same Apr. 22, 2008
7352240 Method and apparatus for protecting devices in an RF power amplifier Apr. 1, 2008
7339424 Apparatus and method for controlling temperature of electronic apparatus Mar. 4, 2008

1 2 3 4 5 6 7 8










 
 
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