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Thread Tools | Display Modes |
5th March 2008, 02:19 PM
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Request Exam. of Diagram for Error
Please examine the output transistors in the diagram below:
http://ourworld.compuserve.com/homep....htm#ring2.gif The upper two output transistors are called out as PNPs, yet they face a positive voltage. How can this be? What should the four output transistors be? (Note that even the text refers to PNPs, yet there doesn't seem to be a place for PNPs.) Thanks! Don P. |
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5th March 2008, 02:35 PM
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Look how they are connected, the emitters go to the positive, it's a simple H-bridge. Top two are PNP, and bottom two NPN, this is how it should be.
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