FPGA PID DC Motor Controller Galt Design, Inc.. Short Description PID control of DC Motor through...
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Copyright 2006 - Galt Design, Inc. Copyright 2006 - Galt Design, Inc. FPGA PID DC Motor FPGA PID DC Motor Controller Controller Galt Design, Inc. Galt Design, Inc.
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Transcript of FPGA PID DC Motor Controller Galt Design, Inc.. Short Description PID control of DC Motor through...
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
FPGA PID DC Motor FPGA PID DC Motor ControllerController
Galt Design, Inc.Galt Design, Inc.
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
Short DescriptionShort Description
• PID control of DC Motor through PWM pulsing of H_BridgePID control of DC Motor through PWM pulsing of H_Bridge
• Takes input from Quadrature decoder for position informationTakes input from Quadrature decoder for position information
• PID, deadband, integrator_limit,PID, deadband, integrator_limit, ramping, timeout settings ramping, timeout settings availableavailable
• Available in both Verilog and VHDL HDL codeAvailable in both Verilog and VHDL HDL code
• Can be used in both FPGA and ASIC designsCan be used in both FPGA and ASIC designs
• DC Motor Timeout detector. Shuts down drive if motor jams.DC Motor Timeout detector. Shuts down drive if motor jams.
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
PID Thermal controller FPGA
DC_motor H-Bridge
Quadrature
CPU interface
2
1PID DC Motor Controller
PID motor controller FPGA Example
Quadrature counter
Requested position, parameters
32
Done Interrupt
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
PID Motor Control DiagramPID Motor Control Diagram
- Accumulator
Positive or Negative
PWM pulses to DC Motor
H-bridge
Error*
*
I term
P term
* D term
Derivative Gain
Register
Integral Gain Register
Proportional Gain
Register
Temperature Setpoint Register
Quadrature Encoder
Input
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
Example FPGA Code OrganizationExample FPGA Code Organization
Quadrature_decoder.vQuadrature_decoder.v
Pid_controller.vPid_controller.v
Dc_motor_timeout.vDc_motor_timeout.v
dc_motor_control.vdc_motor_control.v
Copyright 2006 - Galt Design, Inc.Copyright 2006 - Galt Design, Inc.
Contact informationContact information
Contact us with questions or for a quote:Contact us with questions or for a quote:
