SOLAR PANEL 40P6
– USER MANUAL
ENDUROSAT
5
3 DESCRIPTION
The Solar Panel 40P6 is equipped with two pairs in parallel of four CESI solar cells of type CTJ30 in
series with up to a 29.5% efficiency. The total effective solar cell area is 241.2mm
2
and provides up to
9.63 Watts @AM0, T=25°C.
On the PCB, a network of sensors can be interfaced to an Attitude Determination and Control
System(ADCS). The network is a combination of the following: two temperature sensors and two Sun
sensors. The temperature sensor and Sun sensor (photodiode) are positioned on the top surface of
the solar panel.
Solar panel configurations on the outside of the satellite can be simple or complex. Therefore, using
our connector system on the PCB, multiple solar panels can be easily connected in an electrical
series or parallel configuration. The solar panels are then typically connected to an Electrical Power
System (EPS) module.
4 PRODUCT PERFORMANCE AND PROPERTIES
4.1
Solar Panel Features and Characteristics
•
Eight CESI CTJ30 solar cells, triple junction with integrated bypass diode, space qualified
(specs in the following paragraph)
•
Configuration of the solar cells: 4 in Series 2 in Parallel
–
4S2P
•
Maximum power: 9.63W
1
•
Voltage at maximum power: 9.32V
1
•
Current at maximum power: 1034mA
1
•
241.2cm
2
effective cell area (for 8 solar cells)
•
Blocking diodes on both solar cell strings
•
Gold plated invar interconnectors
•
Space-grade silicone adhesive with minimum outgassing behavior
•
Two temperature sensors with SPI interface (accuracy: ±1.5°C from -25°C to 85°C (max),
±2.0°C from -55°C to 125°C (max))
•
Two Sun sensors (photodiodes)
•
Multiple 40P6 solar panels can be connected in series or parallel
•
PCB thickness: 1.6mm with two internal 70 µm copper layers and white solder mask
•
Countersunk mounting holes as per DIN EN ISO 7046-1 (without grounding)
•
Mass: < 170g
1
@AM0, T=25°C
