User's Manual

© SENSITECH INC. CONFIDENTIAL – CONTROLLED DOCUMENT Page 22 of 83
A Carrier Corp. Company
PART NUMBER T82002163
REV A
Charging Current Vs time
0
0.5
1
1.5
2
2.5
3
3.5
00:00 01:00 02:00 02:40 03:10 03:32
Current (A)
00:00
00:10
00:30
01:00
01:30
01:40:00
02:00
02:10:00
02:30
02:40
02:50
03:00
03:10
03:20
03:30
03:32
Battery Voltage During charging
6
6.5
7
7.5
8
8.5
9
00:00 00:30 01:30 02:00 02:30 02:50 03:10 03:30
Battery Voltage (V)
00:00
00:10
00:30
01:00
01:30
01:40:00
02:00
02:10:00
02:30
02:40
02:50
03:00
03:10
03:20
03:30
03:32
1) Power suppply efficiency evaluation
Input Voltage (V) Input Current (A) Input PD(W) Output Voltage (V) Output Current(A) Output PD(W) Efficiency(%)
12 2.630 31.56 7.2 3.88 27.936 88.51711027
24 1.400 33.6 7.5 3.8 28.5 84.82142857
8.4 3.530 29.652 7.14 4 28.56 96.31728045
24 1.330 31.92 7.14 4 28.56 89.47368421
7.13 1.120 7.9856 4.98 1 4.98 62.36225205
7.14 0.550 3.927 4.98 0.5 2.49 63.40718105
7.08 0.300
2.124 3.29 0.5 1.645 77.44821092
7.06 0.570
4.0242 3.28 1 3.28 81.50688336
7.09 0.162
1.14858 1.44 0.5 0.72 62.68609936
7.08 0.304
2.15232 1.436 1 1.436 66.71870354
1.45VOutput(LT1
940)
CHARGE
7.2V Output
(LM3075)
5V
output(LM2940s-
5.0)
3.3V
Output(LT1940)
NOTE: THIS WILL NEED TO CHANGE BECAUSE THE LM3075 BUCK CONVERTER HAS BEEN REPLACED.