Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
10/31/06 15:57
Read: times


 
#127178 - Well, ...
Responding to: ???'s previous message
Oh.. I've been compare between 220vac from the house electricity and my secondary output, it looks the same p-p at my osciloscope, and off course it show 440vp-p on the screen, and drop to 150vp-p when I attach the bulb onto it.
My Tr Driver was MJE13005 at stage1 then MJE13005 again on stage2 and the final stage are parallels of 10 MJE13009 with each of their Emitter output were attached 1ohm/5W resistor.
The 1ohm R wasn't hot at all, but the heatsink on the Collector with 24Vdc supply was hot enough, but still can be touch.
I'm sorry if my message was very very OT bcoz I used the AT89S51 MCU for switching the freq. around 95khz to 105khz for the XR2206 later.
Thx for the replies.

Best regards,
Tinggo Santoso, ST
Perum. Wisma Mukti
Jl.Klampis Anom F32 III/22
031 6024 8951
081 231 53035
www.geocities.com/tnet232
tnet232@yahoo.com

List of 19 messages in thread
TopicAuthorDate
Voltage Step-Up            01/01/70 00:00      
   Well, ...            01/01/70 00:00      
      Well, ...            01/01/70 00:00      
      Replace Transfm. using H-bridge MOSFET            01/01/70 00:00      
   Transformer design            01/01/70 00:00      
   Stick ferrite core is totally unsuited!            01/01/70 00:00      
      Stick ferrite core is totally unsuited!            01/01/70 00:00      
         100kHz needed?            01/01/70 00:00      
            Pulsing @1khz            01/01/70 00:00      
               Hhm            01/01/70 00:00      
                  anyhow            01/01/70 00:00      
                     Yes, good guess...            01/01/70 00:00      
                     The Load            01/01/70 00:00      
                        Tell him            01/01/70 00:00      
                           C load?            01/01/70 00:00      
                  lamp            01/01/70 00:00      
   Voltage regulation.            01/01/70 00:00      
      Please don't use SMS-style abbreviations            01/01/70 00:00      
         Found a pair!            01/01/70 00:00      

Back to Subject List