Power/Temp Monitor and Control System (EPS/ECLSS) Budget¶
Preliminary Budget¶
| Schematic |
Description |
Prototype Cost |
Production Cost |
| C1 |
68uF Capacitor |
$.49 |
$1.15 |
| C2 |
120uF Capacitor |
$0.62 |
$0.62 |
| Cf1 |
1uF capacitor |
$0.14 |
$1.15 |
| Cf2 |
1uF capacitor |
$0.14 |
$1.15 |
| D1 |
1N5817 Schottky diode |
$0.27 |
$0.19 |
| L1 |
100uH Inductor |
$0.18 |
$0.09 |
| Ra1 |
47k Ohm .25W Resistor |
$0.37 |
$0.03 |
| Rb1 |
47k Ohm .25W Resistor |
$0.37 |
$0.03 |
| Rb2 |
47k Ohm .25W Resistor |
$0.37 |
$0.03 |
| Rf1 |
4.7 Ohm .25W resistor |
$0.37 |
$0.03 |
| Rf2 |
4.7 Ohm .25W resistor |
$0.37 |
$0.03 |
| Rf3 |
4.7 Ohm .25W resistor |
$0.37 |
$0.03 |
| Rf4 |
4.7 Ohm .25W resistor |
$0.37 |
$0.03 |
| RL1 |
180 Ohm .5W resistor |
$0.37 |
$0.03 |
| RL2 |
180 Ohm .5W resistor |
$0.37 |
$0.03 |
| Rs1 |
068 Ohm 10W resistor |
$2.14 |
$2.14 |
| Rs2 |
068 Ohm 10W resistor |
$2.14 |
$2.14 |
| U1 |
LM2594M-3.3/NOPB Voltage regulator |
$2.70 |
$2.70 |
| U2 |
TMP102 Temp sensor (I2C) |
$5.95 |
$1.69 |
| U3 |
INA226 Current and voltage sensor |
$6.33 |
$3.38 |
| U4 |
INA226 Current and voltage sensor |
$6.33 |
$3.38 |
| |
3 position jumper block |
$.22 |
$.13 |
| |
5mm barrel jack, 2.1mm center pole |
$4.95 |
$1.12 |
| |
8 position screw terminals |
$2.45 |
$2.45 |
| |
Populated Ethernet Booster Pack (MSP430 MCU) |
$25.00 |
$25.00 |
| |
EPS PC board (in qty. 10) |
$0.00 |
$12.00 |
| |
Subtotal |
$58.21 |
$60.75 |
| |
Labor |
$1362.50 |
$135.52 |
| |
TOTAL |
$1420.71 |
$196.27 |
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