Connecting an L293D H-Bridge to a DC Motor: Advice Needed

AI Thread Summary
The L293D H-Bridge can be connected to a 15V rail and ground for use with a 12V DC motor. It is important to limit the PWM signal to achieve approximately 12V, ideally using an 80% duty cycle. The H-Bridge can handle voltages up to 36V, making it suitable for this setup. The PIC 16F877A microcontroller's 5V output can control the H-Bridge without issues. Overall, this configuration should work effectively for the project.
axe34
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Hello

I was wondering if you could advise me on the following. I am undertaking a personal project at home (mainly mechanical in nature) whereby I require the L293D H-Bridge to connect to a 12 V DC motor. I'm using a PIC 16F877A microcontroller. This microcontroller has a 5V output. The breadboard I have has a 15V but no 12 V rail.
Can I connect the H bridge to the 15V rail and ground rail? Will the DC motor work ok?
I have studied the data sheet but I'm still confused!Thankyou
 
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axe34 said:
Can I connect the H bridge to the 15V rail and ground rail? Will the DC motor work ok?
Yes, just limit the PWM-signal to yield ±12V ( ±80% duty cycles ).

The limit as for the bridge itself is 36V.
 
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