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Mahmood Elnasser
11/22/14 13:27
Read: 763 times
Sacramento
USA


 
#190392 - Yes
Responding to: Chico Magalh„es's previous message
Since there is a resistor on the emitter of Q1 you can connect it directly to the base but it is better to use a series resistor to protect the uController pin.
You should also put pull down resistor on the base of Q1 to make sure it stays off once the micrcontroller in reset or undetermined state.
Mahmood

List of 15 messages in thread
TopicAuthorDate
Car amp remote signal      Chico Magalh„es      11/14/14 19:13      
   use a relay      Erik Malund      11/17/14 09:00      
      There is other option than relay?      Chico Magalh„es      11/19/14 22:37      
         Hi Power      Mahmood Elnasser      11/20/14 06:04      
            Let me explain a little...      Chico Magalh„es      11/20/14 20:39      
         plenty, but ....      Erik Malund      11/20/14 07:43      
            I understand...      Chico Magalh„es      11/20/14 20:41      
   Little update about involved currents      Chico Magalh„es      11/20/14 23:29      
      if it is 12V hi/lo and less than 200mA      Erik Malund      11/21/14 07:51      
         Amp needs 12v for switching      Chico Magalh„es      11/21/14 13:46      
            2 transistors      Mahmood Elnasser      11/22/14 11:40      
               You mean this one?      Chico Magalh„es      11/22/14 12:21      
                  Yes      Mahmood Elnasser      11/22/14 13:27      
                     Thank you!      Chico Magalh„es      11/27/14 14:09      
            follow the logic      Maarten Brock      11/29/14 01:45      

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