Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

PWM signal from PIC as opposed to PWM signal from function generator

Status
Not open for further replies.
V

vaia-riseng

Newbie level 6
Joined
Dec 28, 2011
Messages
13
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,374
Hi! I'd like to ask what is the difference between the PWM signal produced from a function generator and a PWM signal produced by a PIC microcontroller. I am trying to produce PWM signals to drive a DC motor. This PWM signal is fed to the motor driver through a octal transceiver 74LS245. But when I try to drive it using the PWM signal from the PIC, it does not move as opposed to when I use the PWM signal from the function generator (PWM signals have the same amplitude, frequency and duty cycle). Thank you very much for your help!
 

vaia-riseng said:
Hi! I'd like to ask what is the difference between the PWM signal produced from a function generator and a PWM signal produced by a PIC microcontroller. I am trying to produce PWM signals to drive a DC motor. This PWM signal is fed to the motor driver through a octal transceiver 74LS245. But when I try to drive it using the PWM signal from the PIC, it does not move as opposed to when I use the PWM signal from the function generator (PWM signals have the same amplitude, frequency and duty cycle). Thank you very much for your help!
Click to expand...

i would be that the driver is inadequate, is it a mosfet device? can you post schematic? steve
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top