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Old 3rd June 2008, 05:17 PM   #1
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Hello,

What are the logic gates used for in this circuit ?

The aim is to control a motor by using an amplified PWM signal.

What are the entrances W3 and W4 used for ? the LM7805 is a voltage regulator but why is it in this schematic ?

Thank you for your reply

Cisco
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Old 3rd June 2008, 05:40 PM   #2
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Originally posted by Cisco59nord
Hello,

What are the logic gates used for in this circuit ?

The aim is to control a motor by using an amplified PWM signal.

What are the entrances W3 and W4 used for ? the LM7805 is a voltage regulator but why is it in this schematic ?

Thank you for your reply

Cisco
I don't think W3 and W4 are "entrances", it looks like they are just the +12v source and ground connections in the schematic. The LM7805 is there because U1 and U3 require +5v.
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Old 3rd June 2008, 07:12 PM   #3
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Thank you.

But there is still one question:

What are the logic gates used for ?
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