Oct 24, 2007 #1 S slienteyes Junior Member level 2 Joined Mar 17, 2006 Messages 21 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,420 I need the tips or recommendation for design for thermal spreading of power amplifier
Nov 27, 2007 #2 S Shoma Chandorkar Junior Member level 2 Joined Jun 27, 2007 Messages 22 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,403 Please find the attached document. This may be helpful to you to understand the thermal managemet of Power amplifier.
Please find the attached document. This may be helpful to you to understand the thermal managemet of Power amplifier.
Nov 28, 2007 #3 J jayce3390 Full Member level 6 Joined May 22, 2007 Messages 351 Helped 29 Reputation 58 Reaction score 21 Trophy points 1,298 Activity points 3,287 hI, Does anybody have idea to get a start point to design thermal tracking circuit for power amplifier? What are the main aspects ? thank you
hI, Does anybody have idea to get a start point to design thermal tracking circuit for power amplifier? What are the main aspects ? thank you
Nov 29, 2007 #4 Z zhlc3 Junior Member level 2 Joined Jul 24, 2006 Messages 20 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Location China Activity points 1,375 freescale or NXP maybe give you some good ideas.
Nov 29, 2007 #5 khouly Advanced Member level 5 Joined Oct 20, 2003 Messages 2,350 Helped 461 Reputation 916 Reaction score 102 Trophy points 1,343 Location EGYPT Activity points 13,242 also check this appnote from sirenza **broken link removed** khouly
Dec 5, 2007 #6 C ChaoFan Full Member level 2 Joined Dec 14, 2004 Messages 125 Helped 7 Reputation 14 Reaction score 4 Trophy points 1,298 Location China Activity points 745 jayce3390 said: hI, Does anybody have idea to get a start point to design thermal tracking circuit for power amplifier? What are the main aspects ? thank you Click to expand... For thermal tranking circuit, I can find one application note-AN1643 from Freescale website, the circuit works well, hope to help you! Added after 4 minutes: slienteyes said: I need the tips or recommendation for design for thermal spreading of power amplifier Click to expand... For thermal spreading, You should make your signal trace and capacitors' placement symmetry. beause imbalance lead to high Rj-c values at rated high power level. hope to help you!
jayce3390 said: hI, Does anybody have idea to get a start point to design thermal tracking circuit for power amplifier? What are the main aspects ? thank you Click to expand... For thermal tranking circuit, I can find one application note-AN1643 from Freescale website, the circuit works well, hope to help you! Added after 4 minutes: slienteyes said: I need the tips or recommendation for design for thermal spreading of power amplifier Click to expand... For thermal spreading, You should make your signal trace and capacitors' placement symmetry. beause imbalance lead to high Rj-c values at rated high power level. hope to help you!