HiRel/CanSat/Slave Power

(Difference between revisions)
Jump to: navigation, search
m
Line 3: Line 3:
 
{|class=wikitable
 
{|class=wikitable
 
|-
 
|-
! Type || CanSat Slave Power || Schematic || Description
+
! CanSat Slave Power || Schematic || Description
 
|-
 
|-
| V1.0 || [[File:CanSat_Slave_Power.jpg|200px|CanSat Slave Power V1.0]] || [[Media:P-CAD EDA - CanSat Slave Power schematic.pdf|CanSat Slave Power v2.0 Schematic PDF]] ||  
+
| [[File:CanSat_Slave_Power.jpg|200px|CanSat Slave Power V1.0]] || [[Media:P-CAD EDA - CanSat Slave Power schematic.pdf|CanSat Slave Power v2.0 Schematic PDF]] || LDO 5V -> 3V3: <br/> * v1: SC189XSKTRT <br/>  * v2: AP7361-FGE-7
 
|-
 
|-
 
|}
 
|}
Line 12: Line 12:
  
 
The [[HiRel/CanSat|CanSat]] system has 3 possible power sources:
 
The [[HiRel/CanSat|CanSat]] system has 3 possible power sources:
* a mini-USB connector on the power supply board
+
* a micro-USB connector on the power supply board
 
* a battery connector on the power supply board
 
* a battery connector on the power supply board
 
* a micro-USB connector on the [[HiRel/CanSat/Slave_Gumstix|microprocessor board]]
 
* a micro-USB connector on the [[HiRel/CanSat/Slave_Gumstix|microprocessor board]]

Revision as of 10:52, 3 March 2015

Contents

CanSat Slave Power Schematic Description
CanSat Slave Power V1.0 CanSat Slave Power v2.0 Schematic PDF LDO 5V -> 3V3:
* v1: SC189XSKTRT
* v2: AP7361-FGE-7

Power inputs

The CanSat system has 3 possible power sources:

  • a micro-USB connector on the power supply board
  • a battery connector on the power supply board
  • a micro-USB connector on the microprocessor board

Only one of these should power the system with 5 V. Jumpers are provided in order to select the actual power source. This 5 V is distributed to all the boards on the top connector disk.

Cansat-power.svg

The power board generates 3.3 V from 5 V. The 3.3 V is distributed to all the boards on the bottom connector disk.

Power usage

The 5 V is used by:

  • the power supply board for generating the 3.3 V
  • the sensors board for the Max11300 together with the temperature and pressure sensors

The precision of the 5 V is given by the components' requirements:

  • the DC/DC converter needs 2.9 V ÷ 5.5 V
  • the Max11300 mixed-mode I/O interface needs 4.75 V ÷ 5.25 V
  • the pressure sensor needs 4.75 V ÷ 5.25 V
  • the temperature sensor needs 2.5 V ÷ 5.5 V

The 3.3 V is used by:

Personal tools
Namespaces
Variants
Actions
Navigation
Modules / Projects
Browse
Toolbox