User Tools

Site Tools


Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
lab:ninjascc [2016/04/02 09:20] – [Dedicated USB Charging Port (DCP)] chronolab:ninjascc [2016/12/13 19:02] (current) chrono
Line 12: Line 12:
 {{:lab:ninjascc:ninjascc-mk1-bot2.jpg?202|}} {{:lab:ninjascc:ninjascc-mk1-bot2.jpg?202|}}
  
 +===== Hardware =====
  
-===== Electrical =====+[[lab:ninjascc:hardware]]
  
-==== PV Input ====+===== Firmware ===== 
 + 
 +[[lab:ninjascc:firmware]] 
 + 
 +===== Software ===== 
 + 
 +[[lab:ninjascc:software]] 
 + 
 +===== MK I Specifications ===== 
 + 
 +==== Electrical ==== 
 + 
 +=== PV Input ===
  
 ^                   Symbol                    ^         Parameter          ^  Min    Typ  ^  Max  ^  Unit   ^ ^                   Symbol                    ^         Parameter          ^  Min    Typ  ^  Max  ^  Unit   ^
Line 23: Line 36:
 |                      -                      |  Panel/Cell Configuration  |   18    36    72    Cells  | |                      -                      |  Panel/Cell Configuration  |   18    36    72    Cells  |
  
-==== Battery ====+=== Battery ===
  
 ^                      Symbol                      ^      Parameter      ^  Min  ^  Typ    Max  ^  Unit  ^ ^                      Symbol                      ^      Parameter      ^  Min  ^  Typ    Max  ^  Unit  ^
Line 42: Line 55:
 SDRs, to be powered by NinjaSCC as well. SDRs, to be powered by NinjaSCC as well.
  
-==== Load ====+=== Load ===
  
 ^                    Symbol                    ^       Parameter        ^  Min  ^  Typ  ^  Max  ^  Unit  ^ ^                    Symbol                    ^       Parameter        ^  Min  ^  Typ  ^  Max  ^  Unit  ^
Line 48: Line 61:
 |  I<html><sub></html>Load<html></sub></html>  |  Cont. Output Current  |              15        | |  I<html><sub></html>Load<html></sub></html>  |  Cont. Output Current  |              15        |
  
-==== Efficiency ====+=== Efficiency ===
  
 ^                      Symbol                                Parameter          ^  Min  ^  Typ    Max  ^  Unit  ^ ^                      Symbol                                Parameter          ^  Min  ^  Typ    Max  ^  Unit  ^
Line 55: Line 68:
 |    TR<html><sub></html>Eff<html></sub></html>         Transit Efficiency      |        99.5  |            | |    TR<html><sub></html>Eff<html></sub></html>         Transit Efficiency      |        99.5  |            |
  
-==== ADC ====+=== ADC ===
  
 Dual analog to digital conversion setup to enhance precision and Dual analog to digital conversion setup to enhance precision and
Line 64: Line 77:
 |  SM72442 (via I2C)  |    12 Bit    |          |  5 V   | |  SM72442 (via I2C)  |    12 Bit    |          |  5 V   |
  
-===== Environment =====+==== Environment ====
  
 ^  Symbol  ^          Parameter            Min  ^  Typ  ^  Max  ^  Unit  ^ ^  Symbol  ^          Parameter            Min  ^  Typ  ^  Max  ^  Unit  ^
Line 71: Line 84:
 |   OVP    |    Overvoltage Protection    |              45        | |   OVP    |    Overvoltage Protection    |              45        |
  
-===== Protection =====+==== Protection ====
  
-==== Electrical ====+=== Electrical ===
  
   * Short-Circuit [HW]   * Short-Circuit [HW]
Line 90: Line 103:
 fast transients from the power source. fast transients from the power source.
  
-==== Environmental ====+=== Environmental ===
  
   * Battery Temperature Monitoring (via external 100k thermistor)   * Battery Temperature Monitoring (via external 100k thermistor)
Line 99: Line 112:
   * Assembly PU-Coating   * Assembly PU-Coating
  
-===== Modes of Operation =====+==== Modes of Operation ====
  
 Based on real-time assessment of the operating conditions, NinjaSCC dynamically Based on real-time assessment of the operating conditions, NinjaSCC dynamically
Line 110: Line 123:
   * Transit (TR)   * Transit (TR)
  
-===== Controller =====+==== Controller ====
  
 Since Arduinos have been around for a while and have a very broad Since Arduinos have been around for a while and have a very broad
Line 121: Line 134:
 Arduino-Micro board. Arduino-Micro board.
  
-===== Dedicated USB Charging Port (DCP) =====+==== Dedicated USB Charging Port (DCP) ====
  
 As other USB power sources, like most wall warts and auto adapters, As other USB power sources, like most wall warts and auto adapters,
Line 134: Line 147:
   * Shares EN pin with Load Switch to maintain LVD ability by default, but can be selected with a solder bridge/0R   * Shares EN pin with Load Switch to maintain LVD ability by default, but can be selected with a solder bridge/0R
  
-===== Monitoring & Metrics =====+==== Monitoring & Metrics ====
  
 NinjaSCC constantly monitors and collects all relevant system metrics and NinjaSCC constantly monitors and collects all relevant system metrics and
Line 151: Line 164:
 internal cell shorting. internal cell shorting.
  
-===== Remote Control =====+==== Remote Control ====
  
 Any DC/DC regulation parameter can be overriden in software and adjusted Any DC/DC regulation parameter can be overriden in software and adjusted
Line 160: Line 173:
 learning more about buck/boost power conversion in a practical way. learning more about buck/boost power conversion in a practical way.
  
-===== Resilience =====+==== Resilience - Designed in a built-to-last approach ==== 
 + 
 +One of the deciding factors in performance and reliability is the quality  
 +of the selected components, ranging between automotive (AECQx) qualified  
 +and up to aerospace/military grade quality. All required electrolyte caps 
 +are aluminium core design Solid CAP's, which have been a staple in high-end  
 +component designs and provide lower Equivalent Series Resistance (ESR), wide 
 +temperature range and over-10-years lifespan.
  
-Designed in a built-to-last approach, almost all components have been +To further decrease the chance of total system failure, many important  
-selected ranging between automotive (AECQx) qualified and up to +system blocks and components have been set up n+1 redundant,  
-aerospace/military grade quality. To further decrease the chance of total +wherever possible and reasonable.
-system failure, many important system blocks and components have been set +
-up n+1 redundant, wherever possible and reasonable.+
  
 NinjaSCC must withstand gale force sub-arctic winds at -40°C while still NinjaSCC must withstand gale force sub-arctic winds at -40°C while still
 providing power to the remote camera you’ve had to hike for two days to providing power to the remote camera you’ve had to hike for two days to
-put out there for over a yearto make a great movie about glacier calving+put out there for over a year to make a great movie about glacier calving
 or you are in some desert at +55°C ambient temperature and need energy to or you are in some desert at +55°C ambient temperature and need energy to
 operate your water pump to survive. The MKI design targets specifically operate your water pump to survive. The MKI design targets specifically