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Kai Klaas
08/28/03 14:07
Read: 872 times
Germany


 
#53596 - RE: ALE---indicator...failed MPU
Responding to: Stanley Lio's previous message
Hallo Stanley,

congratulation to your first schematic in this forum!

Your circuit has some disadvantage: With used arrangement, you waste lots of power. Assume steady state condition, where upper-left and lower-right transistors are turned-on. Then, emitter of TIP41C is about 1.5V lower than battery voltage! The same for TIP42C. Voltage here is about 1.5V higher than 0V. So, about 3V are wasted for dropping across transistors and are not available for motor.

Have a look at my schematic. I used complementary types, so, only some tens of Volts are dropping across transistors.

Good luck,
Kai

List of 51 messages in thread
TopicAuthorDate
ALE---indicator...failed MPU      Stanley Lio      08/22/03 10:15      
   RE: ALE---indicator...failed MPU      Kai Klaas      08/22/03 10:18      
      RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 10:48      
   RE: ALE---indicator...failed MPU      Oleg Sergeev      08/22/03 10:20      
   RE: ALE---indicator...failed MPU      Andy Neil      08/22/03 10:55      
      RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 10:50      
   RE: ALE---indicator...failed MPU      Raghunathan R      08/22/03 11:11      
      RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 10:47      
      RE: ALE---indicator...failed MPU      Abhishek Singh      08/23/03 10:57      
   RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 11:04      
   RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 11:05      
      RE: ALE---indicator...failed MPU      Oleg Sergeev      08/23/03 14:12      
         RE: ALE---indicator...failed MPU      Raghunathan R      08/23/03 20:35      
            RE: ALE---indicator...failed MPU      Kai Klaas      08/23/03 21:43      
               RE: ALE---indicator...failed MPU      Stanley Lio      08/23/03 22:53      
                  RE: ALE---indicator...failed MPU      Abhishek Singh      08/24/03 02:31      
                     RE: ALE---indicator...failed MPU      Stanley Lio      08/24/03 12:12      
                  RE: ALE---indicator...failed MPU      Kai Klaas      08/24/03 07:41      
                     RE: ALE---indicator...failed MPU      Stanley Lio      08/24/03 12:31      
                        RE: ALE---indicator...failed MPU      Raghunathan R      08/24/03 18:57      
                        Grounding scheme      Kai Klaas      08/25/03 22:29      
                           RE: Grounding scheme      Stanley Lio      08/26/03 09:43      
                           How to post pictures?      Stanley Lio      08/26/03 09:59      
                              RE: How to post pictures?      Kai Klaas      08/26/03 14:09      
                              RE: How to post pictures?      Ian Forse      08/27/03 13:22      
                                 RE: How to post pictures?      Raj Shetgar      08/28/03 23:55      
                                    RE: How to post pictures?      Stanley Lio      08/29/03 01:35      
   RE: ALE---indicator...failed MPU      Steve M. Taylor      08/24/03 18:35      
      RE: ALE---indicator...failed MPU      Stanley Lio      08/24/03 23:33      
         RE: ALE---indicator...failed MPU      Raghunathan R      08/25/03 01:56      
   RE: ALE---indicator...failed MPU      Stanley Lio      08/28/03 09:11      
      RE: ALE---indicator...failed MPU      Steve M. Taylor      08/28/03 10:51      
         RE: ALE---indicator...failed MPU      Stanley Lio      08/28/03 20:54      
      RE: ALE---indicator...failed MPU      Kai Klaas      08/28/03 14:07      
         RE: ALE---indicator...failed MPU      Hans Van Pelt      08/28/03 14:34      
            RE: ALE---indicator...failed MPU      Kai Klaas      08/28/03 19:16      
   RE: ALE---indicator...failed MPU      Stanley Lio      08/28/03 09:31      
   RE: ALE---indicator...failed MPU      Stanley Lio      08/29/03 07:33      
      RE: ALE---indicator...failed MPU      Kai Klaas      08/29/03 08:50      
         RE: ALE---indicator...failed MPU      Steve M. Taylor      08/29/03 09:07      
            RE: ALE---indicator...failed MPU      Kai Klaas      08/29/03 09:40      
               RE: ALE---indicator...failed MPU      Steve M. Taylor      08/29/03 10:35      
                  RE: ALE---indicator...failed MPU      Stanley Lio      08/29/03 13:49      
                     RE: ALE---indicator...failed MPU      Erik Malund      08/29/03 13:54      
                     RE: ALE---indicator...failed MPU      Steve M. Taylor      08/29/03 15:37      
      RE: ALE---indicator...failed MPU      Stanley Lio      08/29/03 13:52      
         RE: ALE---indicator...failed MPU      Raghunathan R      08/31/03 09:52      
            RE: ALE---indicator...failed MPU      Stanley Lio      08/31/03 10:28      
            RE: ALE---indicator...failed MPU      Stanley Lio      08/31/03 10:37      
               RE: ALE---indicator...failed MPU      Steve M. Taylor      08/31/03 10:41      
                  RE: ALE---indicator...failed MPU      Stanley Lio      09/01/03 08:13      

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