TTCS electronics progress at Sun Yatsen University

1
TTCS electronics progress at Sun Yat-sen
University
SYSU Electronic Group
Jack Wang, SYSU
2
TTEC Board

• TTEC board CAN communication is tested by 4
  JMDCs.
• CAN data types are delivered.
• 3 PI loop controls sharing one PI control
  algorithm in FPGA is implemented and tested. It
  is possible.

3
TTEP board design is implemented

• Simplified board is produced and tested.
• Inductors specification is provided.
• PWM regulated Peltier and heater driver modules
  are tested.

4
Simplified TTEP and TTPP board
5
PWM regulated power supply schematics
6
PWM regulated power supply test-bench schematics
7
0.81A
0.22A
2.6A
1.45A
8
Adum1100 seems not so robust as optocoupler.
9
TTPP board design is implemented

• Pressure sensor interface circuit function is
  implemented and tested.
• Pump interface circuit function is implemented
  and tested.
• Valve driver is updated by V. K.

10
Ongoing work

• Backplane design.
• PCB drawing of TTEP and TTPP.
• TTCE integration and test.

11
Thank you!
12
11.5V-0.22A
13
0.81A
14
1.45A
15
2.6A
16
ADUM1100 output
BC817 output
20N06 output
BC817 caused Delay
17
ADUM1100 output
FET output
The FET will switch off before the PWM duty cycle
reaches 210/255