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  • Buck-Boost LED Driver Using the PIC16F785 MCU
    the following features: * The on-chip op amp of the PIC16F785 is used to amplify the voltage across the current sensing resistor. This allows a much smaller sensing resistor to be used and reduces power dissipation. * The PIC16HV785 device can be used, which eliminates the requirement for an external 5V
  • Agilent: Five Hints for Debugging Microcontroller-Based Designs
    Hint 1: Verifying quadrature encoder signals in a motion control system Using a mixed analog and digital signal oscilloscope to simultaneously monitor the signal levels of a quadrature encoder, an LS7083 converter chip, and a motor's positive lead. Hint 2: Implementing a simple voltage follower
  • Sensorless BLDC Control with Back-EMF Filtering Using a Majority Function
    -to-Digital Converter (ADC) It is possible to determine when to commutate the * Reconstructing the Motor Virtual Neutral Point motor drive voltages by sensing the back-EMF voltage * Comparing the trapezoidal BEMF signals to the on an undriven motor terminal during one of the drive reconstructed motor

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