Power amplifier protection

Details Power amplifier protection Power amplifier protection

2007-09-11

2007-09-11

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C330S298000, C330S279000, C330S051000

Reexamination Certificate

active

10767045

ABSTRACT:
A power amplifier protection circuit that includes protection circuitry to variably shunt an input radio frequency (RF) signal to AC ground, turn off bias to an output transistor of a power amplifier, and turn off the output transistor. The power amplifier protection circuit features an asymmetrical control that can quickly shut off a power amplifier, and turn on the power amplifier at a steady, controlled rate when an output transistor exceeds a predetermined threshold voltage.

REFERENCES:
patent: 4019150 (1977-04-01), Lurey et al.
patent: 5150075 (1992-09-01), Hietala et al.
patent: 5543760 (1996-08-01), Honda et al.
patent: 5929709 (1999-07-01), Eriksson et al.
patent: 6278328 (2001-08-01), Yamamoto et al.
patent: 6388525 (2002-05-01), Bien
patent: 6476677 (2002-11-01), Komaili et al.
patent: 6525611 (2003-02-01), Dening et al.
patent: 6603335 (2003-08-01), Macphail et al.
patent: 6720831 (2004-04-01), Dening et al.
patent: 2003/0045251 (2003-03-01), Arnott
patent: 2003/0076172 (2003-04-01), Tichauer
IEEE Computer Society, “Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications”, IEEE Std 802.11—First Edition, 1999.
IEEE Computer Society, “Supplement to IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: High-speed Physical Layer in the 5 GHZ Band”, IEEE Std 802.11a—1999 (Supplement to IEEE Std 802.11—1999).
IEEE Computer Society, “Supplement to IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Higher-speed Physical Layer Extension in the 2.4 GHZ Band”, IEEE Std 802.11b—1999 (Supplement to IEEE Std 802.11—1999).
IEEE Computer Society, “IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Amendment 7: Medium Access Control(MAC)Quality of Services(QoS)Enhancements”, IEEE P902.11e/D11.0, Oct. 2004.
IEEE Computer Society, “IEEE Standard for Information Technology—DRAFT Supplement to STANDARD[for]Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Further Higher Data Rate Extension in the 2.4 GHz Band”, IEEE P802.11g/D8.2, Apr. 2003.
IEEE Computer Society, “IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Amendment 5: Spectrum and Transmit Power Management Extensions in the 5 GHz Band in Europe”, IEEE P802.11h—2003.
IEEE Computer Society, “IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Amendment 6: Medium Access Control(MAC)Security Enhancements”, IEEE Std 802.11i—2004.
IEEE Computer Society, “IEEE Project 802.14/a Draft 3 Revisions 3—Cable-TV Access Method and Physical Layer Specification”, IEEE 802.14 Draft R3—Oct. 25, 1998.

Affiliated with

Also associated with

Rating

Power amplifier protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power amplifier protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power amplifier protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3780531