Cursor
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==== Power circuit ==== | ==== Power circuit ==== | ||
| − | The | + | The chariot DC motor is powered with 12 V. |
| + | The [[Media:Cursor_power_circuit.pdf|power circuit]] contains an H-bridge controlled by digital signals. | ||
| + | On the power board, a 5 V regulator generates the proper voltage for powering the FPGA board. | ||
==== DC motor ==== | ==== DC motor ==== | ||
Revision as of 11:22, 26 November 2012
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The cursor project is an ElN project done at the end of the first semester. It consists in driving a DC motor which moves the cursor chariot with the help of a screw.
Components
The system consists of
- a chariot assembly
- an FPGA prototyping board
- a control board with 4 buttons and 8 LEDs
Power circuit
The chariot DC motor is powered with 12 V. The power circuit contains an H-bridge controlled by digital signals. On the power board, a 5 V regulator generates the proper voltage for powering the FPGA board.
DC motor
The DC motor is controlled by a L6207 H-bridge driver.
Encoder
The position of the screw can be detected with help of the incremental encoder module
Toplevel Design
There is a Empty and a Demo Toplevel Design. the Empty for the Students to create their own system and the Full is our example.
Specification
- On reset the cursor moves to the end of the chariot
- By pressing the pos 1 button the cursor need to move to position 1 with an acceleration and deceleration phase
- By pressing the pos 2 button the cursor need to move to position 2 with an acceleration and deceleration phase
Get the source svg here.
