Digital Oscilloscope Implementation and Real-Time Signal Processing
- Achieved an oscilloscope based on a TMS320F28335 DSP development kit and an LCD screen
- Sampled voltage of signal using the ADC in the DSP; analyzed frequency components of the
signal using
128
points FFT; stabilized the waveform in rising edge, high-level or low-level mode;
implemented a Finite
Impulse Response (FIR)
filter on the digital signal using circular convolution
- Speeded up refresh rate of the LCD by 274 %; decreased delay time to 10% when transmitting
data in the
bottom layer software
|
Motor Vector Control System Design and Analysis
- Built an Indirect Rotor Flux Oriented control system for an induction motor (IM)
- Formulated a model of IM in a stationary reference frame (αβ frame) by taking rotate speed,
stator
current
and rotor flux as state variables; designed and simulated a motor control system in SIMULINK
based on
above
model with no
static difference between given and output; analyzed and concluded the suitable domain of
parameters of
PID
according to the given IM
|
Brushless DC Motor Control System Design
- Achieved a brushless DC motor control system on a PCB and a DSP development kit
- Designed the motor drive module and regulated motor speed with PID control
|
FPGA-Based Digital Clock Design
- Achieved a digital clock base on Xilinx Artix-7 FPGA; structured, coded and debugged the
source and
constrain files for the FPGA development kit
|
