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Spectronik CEREBRAL-55, User Manual

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CHAPTER 3 |  OPERATING CEREBRAL-55

An example

Cerebral-55 Settings: 

I_Set

: 

12.5 

A, (Output I Limit)

Ramp

: 

1, 1.5 

A/s

∴

step resolution 

→

750mA/500ms

Load

= 10A

Load engaged

min Output I Limit

= 2A (default)

I_out 

&

Aux_I_out

= 0A

0A

Aux_I_out

contribution 

= 8A

Ramping reached 

10A

Load

↓

= 6A

Load

↑

= 10A

Aux_I_out

= 4A

750 mA

500 ms

Electronic-Load: 

Mode

: 

Constant-Current

(For steady current demonstration)

Load

: 

10 

A

Summary of Contents for CEREBRAL-55

Page 1: ...CEREBRAL 55 SMART DC DC CONVERTER USER GUIDE VERSION 1 0 JUNE 2022 ...

Page 2: ...osal and recycling As CEREBRAL 55 contains electronic components it must be disposed of separately from household waste When CEREBRAL 55 reaches its end of life follow local laws and regulations for proper disposal and recycling options High consequence activities CEREBRAL 55 is a customized system with pending safety tests and certifications It is not intended for use where the failure of the sys...

Page 3: ... Power 6 5500 W Efficiency 94 98 Start up Duration 7 1700 ms Mechanical Specifications Mass with Heatsink fan 1460 g Size L x W x H 360 x 100 x 90 mm with spacers Power Cables Connections Lug connection for M5 male with Nut Mounting 10 x 3 2mm or M3 spacers Advised ambient temperature 15 to 60 C Advised temperature threshold 6 8 80 C on converter 1 SPECIFICATIONS 1 1 CEREBRAL 55 SPECIFICATIONS 1 U...

Page 4: ...does not exceed 5600W This allows the full 5 5kW to the load end despite in line voltage drops from conduction losses CHAPTER 2 OVERVIEW 2 OVERVIEW 2 1 CEREBRAL 55 SYSTEM OVERVIEW 12 Off On 1 2 3 4 6 7 8 9 10 11 13 14 15 ITEM DESCRIPTION 1 Output On Off Switch 6 Control board 11 Converter Board 2 Programming Port 7 Fans x3 12 GND M5 stud 3 Load VI sensing 8 DCDC Converters x3 13 V_in M5 stud 4 Sup...

Page 5: ...I has the following features I Display input and output values II Display CEREBRAL 55 s settings III Display CEREBRAL 55 s operational status IV Clear step by step user guide on how to configure settings V Data logging into CSV file 1 2 3 4 5 6 7 8 9 10 ITEM DESCRIPTION 1 Operational Status 6 User input text box 2 Values of Inputs 7 System messages output box 3 Values of Outputs 8 Communications p...

Page 6: ...GUI displays live status when the output Switch is turned on GUI displays output configurations and instructions for new settings CHAPTER 2 OVERVIEW ...

Page 7: ...Live data logging is available and will be saved in a CSV format CHAPTER 2 OVERVIEW ...

Page 8: ...f in doubt connect to GUI to verify output settings V_out Source CEREBRAL 55 LOAD V_in GND GND 3 1 GETTING STARTED SYSTEM CONNECTIONS Cable lug connection with Input Output GND Cable lug connection from Input to V_in Cable lug connection to Output from V_out Cable lug connection with Input Output GND Switch Off LED 3 OPERATING CEREBRAL 55 Communication PC To PC via USB to UART cable ...

Page 9: ...rrect orientation Black wire to BLACK locator CHAPTER 3 OPERATING CEREBRAL 55 3 2 GETTING STARTED GUI SETUP UART Port on Control Board UART Console of USB to UART cable Caution The UART connector has a tight fit to provide a robust connection When connecting ensure the UART console is fully inserted into the receiving port When disconnecting firmly grip the sides of the console head and pull out Y...

Page 10: ...elect the correct communication port and click on the Connect button The GUI is now connected to the CEREBRAL 55 GUI will respond once there is power into the CEREBRAL 55 Note GUI is not needed to turn on the CEREBRAL 55 GUI is only needed for output setting s reconfigurations The GUI may remain connected for monitoring and datalogging ...

Page 11: ...hat the com port is incorrect CHAPTER 3 OPERATING CEREBRAL 55 3 3 GETTING STARTED SYSTEM CONFIGURATION Keep the Switch at Off to make changes to the output settings Refer to the guide printed in the message box Follow the relevant steps to change the output setting s Illustrations are available in the appendix CEREBRAL 55 operational range Output configurations Instructional guide to change the ou...

Page 12: ...AL 55 is now ready Ensure output settings are configured correctly Turn Switch to On to allow power output GUI will show that the system has entered In Operation status CHAPTER 3 OPERATING CEREBRAL 55 Off On ...

Page 13: ... CEREBRAL 55 will automatically shut down if there is no Input power Off On Aborting the GUI program The GUI can be disconnected or terminated at anytime Click on the Connect button to end GUI The Save button must be at off in order to end the GUI The x button on is now permitted 3 4 SHUTTING DOWN CHAPTER 3 OPERATING CEREBRAL 55 ...

Page 14: ...rable through setting Step length resolution 500ms fixed Step height resolution 500mA 10000mA 500ms configurable through setting Range given as 1A s to 20A s Refer to Output Current Ramping Setting active non active in the appendix for setup guide When operating with an active Current Ramping program it is necessary to have an auxiliary power source Aux_P_out in parallel to the Cerebral 55 output ...

Page 15: ...mit Ramp 1 1 5 A s step resolution 750mA 500ms Load 10A Load engaged min Output I Limit 2A default I_out Aux_I_out 0A0A Aux_I_out contribution 8A Ramping reached 10A Load 6A Load 10A Aux_I_out 4A 750 mA 500 ms Electronic Load Mode Constant Current For steady current demonstration Load 10 A ...

Page 16: ...8 75 10 35 39 1802 40 1687 40 93 62 Low mid boost 48 24 23 81 38 90 73 99 1867 20 1761 70 94 35 Mid low buck 48 48 47 19 75 00 73 29 3600 00 3458 56 96 07 Mid mid buck boost 15 90 89 60 75 40 10 89 1131 00 975 74 86 27 Low high boost 90 15 15 05 14 00 73 99 1260 00 1113 55 88 38 High low buck 48 80 79 10 75 50 43 99 3624 00 3479 61 96 02 Mid high boost 80 48 47 14 45 30 73 99 3624 00 3487 89 96 24...

Page 17: ..._set 70 3V I_set 60A Counter V drop 70V 0 3V 70 3V 60A 4218W LOAD Diode Assume 96 efficient Required Input W 4218 96 4394W CEREBRAL 55 Obligation 4394W Source Work backwards to determine power requirements and obligations on respective segments An example Sizing up Power Requirements in an Integration Stand Alone Power Source If the load is capable of generating a potential A Diode at the converte...

Page 18: ...CHAPTER 4 MECHANICAL DRAWINGS 4 MECHANICAL DRAWINGS 4 1 MECHANICAL DRAWINGS CEREBRAL 55 ...

Page 19: ...A B I C D E F G H J K L All dimensions in mm A 100 00 G 91 00 B 90 00 H 31 00 C 68 00 I 360 00 D 73 00 J 40 00 E 68 00 K 54 30 F 19 00 L 75 20 CHAPTER 4 MECHANICAL DRAWINGS ...

Page 20: ...5 APPENDIX 5 1 APPENDIX OUTPUT VOLTAGE SETTING Type in v into the input text box followed by the enter key Type in desired voltage e g 75 and enter CHAPTER 5 APPENDIX ...

Page 21: ...Acknowledgement to the voltage change is printed Values on output configuration is updated and displayed CHAPTER 5 APPENDIX ...

Page 22: ...Type in i into the input text box followed by the enter key Type in desired current limit e g 12 5 and enter 5 2 APPENDIX OUTPUT CURRENT LIMIT SETTING CHAPTER 5 APPENDIX ...

Page 23: ...Acknowledgement to the current change is printed Values on output configuration is updated and displayed CHAPTER 5 APPENDIX ...

Page 24: ...e in ramp into the input text box followed by the enter key Type in selection for ramping function to be active and the desired ramp rate e g 1 1 5 and enter 1st value 1 ramping activated 0 ramping not activated 2nd value 1 5 ramp rate of 1 5A sec CHAPTER 5 APPENDIX ...

Page 25: ...Acknowledgement to the ramping change is printed Values on output configuration is updated and displayed When In Operation with above current ramping setting Ramp 1 1 5 A s CHAPTER 5 APPENDIX ...

Page 26: ...ping function to be non active ramp rate value is irrelevant e g 0 and enter Acknowledgement to the ramping deactivation is printed When In Operation with above current ramping setting Ramp 0 1 0 A s CHAPTER 5 APPENDIX ...

Page 27: ...ould terminate the recording You may save your recording under the same name and the new recordings would be saved below the previous data lines Click on the Save button Name the file in the pop up box E g abc if the box is cancelled the default name would be given Spectronik Cerebral DCDC GUI and can be edited later CHAPTER 5 APPENDIX ...

Page 28: ...Files will be saved on desktop To terminate data logging click on the Save again CHAPTER 5 APPENDIX ...

Page 29: ...ge SHUTDOWN Verify possible 90V exceedance at input Input Under Voltage SHUTDOWN Check possible short circuit at input Input Over Current SHUTDOWN Verify that supply is adequate for load demand Output Under Voltage SHUTDOWN Verify that supply is adequate for load demand Output Over Current SHUTDOWN Check possible short circuit at output Critical Error SHUTDOWN message LED Power ON Green Short Blin...

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