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Hi, I am trying to monitor the output of an optical incremental rotary encoder. And I would just like to ask if the encoder will output a PWM signal with constant frequency when I apply a PWM signal with also constant frequency and duty cycle? Thank you very much for your help!
Hi, I am using dsPIC30f4011 microcontroller. I am trying to determine the internal clock of my microcontroller by using TIMERs.
(I am using XT PLL x4 with 7.37 MHz as my external clock)
Basically, I am just trying to output a PWM signal that SHOULD correspond to the internal clock of my...
Thank you very much! Yes, I am using 5V reference. So in essence, between the shunt output and ADC input, I need to put a:
1. Voltage divider that will step down the 5V to 3V
2. Buffer (I'm planning on using 74ls245 here)
3. The RC circuit you suggested before
4. And a zener diode for ADC input...
The current can go up to 0A - 5A. If this is the current, do I still need to amplify the voltage output? And I'm not very familiar with zener diodes so if you can suggest a particular zener diode, it would be a very big help. Thank you very much for your help! :)
Hi, I want to measure current in a motor using a dsPIC3of4011 using ADC. I am using a shunt resistor for the current sensing. Do I connect this directly to the ADC port of the microcontroller or do I need to add resistors or capacitors? Thank you very much!
Hi, I'm planning on creating a microcontroller circuit that measures the current in a 5 dc servo motors (using shunt resistor current sensing and PIC ADC) and does an error handling procedure when overcurrent is detected. However, the only specifications I have of the motors I'm using is that...
Hi, I am thinking of using optoisolators for my circuit, but I am not sure, what kind of configuration I need so I'm thinking of testing it first on a protoboard. Do optoisolators function well in breadboards? Thanks very much!
Hi, I am using octal bus transceiver SN74ls245. I want the pins to have a default output voltage of 0 Volts when there are no inputs on both sides. I thought this would be the case but when I attach the tranceiver to a power supply, there is a 3.4 V output voltage on all pins (a-b). How can I do...
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...
Hi! Does anyone know the ratings of the motors inside the RV-M1 Mitsubishi Arm? I would also appreciate the brand and specifications. Thank you very much! :)
Hi! I need to create a software for speed monitoring using DSPIC30f4011. The signals come from optical encoders.
I have already a motor driver present (not created by me), but with duty cycle restrictions. For example, the motor driver is restricted only to accept PWM signals with 50% duty...
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