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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
04/20/08 00:06
Read: times


 
#153726 - You can use a different power supply
Responding to: ???'s previous message
A different power supply can be used. The simple way is to just tie the grounds together and supply only the LM with more power. I would suggest you also goto a AD712 or some other OP with a FET input and more power out.
To increase the output without increasing the supply, use a balanced driver for the speaker. Instead of a Cap isolated speaker to ground, use a second OP as a simple inverter and 'bridge' the speaker between their outputs.


List of 8 messages in thread
TopicAuthorDate
8051 LM386            01/01/70 00:00      
   You can use a different power supply            01/01/70 00:00      
   What you have here ...            01/01/70 00:00      
   What do you want to do at all?            01/01/70 00:00      
      Music Machine            01/01/70 00:00      
         Ok, then 4 bit is enough            01/01/70 00:00      
      Thanks Kai            01/01/70 00:00      
   Link            01/01/70 00:00      

Back to Subject List