Jul 13, 2018 #1 A adnan012 Advanced Member level 1 Joined Oct 6, 2006 Messages 468 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,298 Activity points 4,923 hi, i want to know about the transformer design used in the following link. "***.qsl.net/in3otd/ham_radio/PD85004_PP_PA_II/PD85004_PP_PA_II.html" How turn ratios are defined (BN 43-2402 and BN 43-202 cores ) ? Can i find any doc related to transformer design? Regards
hi, i want to know about the transformer design used in the following link. "***.qsl.net/in3otd/ham_radio/PD85004_PP_PA_II/PD85004_PP_PA_II.html" How turn ratios are defined (BN 43-2402 and BN 43-202 cores ) ? Can i find any doc related to transformer design? Regards
Jul 13, 2018 #2 BigBoss Advanced Member level 6 Joined Nov 17, 2001 Messages 5,953 Helped 1,609 Reputation 3,225 Reaction score 1,593 Trophy points 1,393 Location Türkiye Activity points 35,773 adnan012 said: hi, i want to know about the transformer design used in the following link. "***.qsl.net/in3otd/ham_radio/PD85004_PP_PA_II/PD85004_PP_PA_II.html" How turn ratios are defined (BN 43-2402 and BN 43-202 cores ) ? Can i find any doc related to transformer design? Regards Click to expand... They are just Impedance Matching Transformers.He has optimized appropriate Input and Output Impedance for the PA and calculated. That's it..
adnan012 said: hi, i want to know about the transformer design used in the following link. "***.qsl.net/in3otd/ham_radio/PD85004_PP_PA_II/PD85004_PP_PA_II.html" How turn ratios are defined (BN 43-2402 and BN 43-202 cores ) ? Can i find any doc related to transformer design? Regards Click to expand... They are just Impedance Matching Transformers.He has optimized appropriate Input and Output Impedance for the PA and calculated. That's it..
Jul 13, 2018 #3 A adnan012 Advanced Member level 1 Joined Oct 6, 2006 Messages 468 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,298 Activity points 4,923 Is it 1:4 impedance transformer? This design is for 10 Mhz . Can i use the same transformer design for 40 MHz?
Is it 1:4 impedance transformer? This design is for 10 Mhz . Can i use the same transformer design for 40 MHz?
Jul 13, 2018 #4 BigBoss Advanced Member level 6 Joined Nov 17, 2001 Messages 5,953 Helped 1,609 Reputation 3,225 Reaction score 1,593 Trophy points 1,393 Location Türkiye Activity points 35,773 adnan012 said: Is it 1:4 impedance transformer? This design is for 10 Mhz . Can i use the same transformer design for 40 MHz? Click to expand... I don't know but if it's designed with Ferrite Cores, the transformer is probably wideband transformer.
adnan012 said: Is it 1:4 impedance transformer? This design is for 10 Mhz . Can i use the same transformer design for 40 MHz? Click to expand... I don't know but if it's designed with Ferrite Cores, the transformer is probably wideband transformer.