Heritage DC to DC Converters
Customer/Program
Classified
Classified
Classified
Classified
Item
#12173 PCU
#11653 LFS
#12858-1 FCU
#12858-2 TCU
Number of Outputs
6
4
7
5
Redundant
Fully
Fully
Non
Fully
Output Power (Watts)
12 per side
22 per side
30
18 per side
Number of Linear Regulators
6 per side
12 total
3 per side
6 total
5
2 per side
4 total
Efficiency (Percent)
73%
72%
73.5%
75%
Weight (lbs)
3.6
4.2
3.8
4.5
Size (inches)
10.1 x 6.4 x 1.4
10.1 x 6.4 x 1.4
10.1 x 6.4 x 1.4
10.1 x 6.4 x 1.4
Switching Freq (kHz)
62
62
62
62
Radiation Environment (Si)
4 Mrad external
4 Mrad external
100 krad external
100 krad external
Output Ripple
100 µV (with linear regulator)
5 µV (with linear regulator)
300 µV (with linear regulator)
300 µV (with linear regulator)
Overvoltage Protection
Implemented
Implemented
Implemented
Implemented
Reverse Polarity Protection
Implemented
Implemented
Implemented
Implemented
Overcurrent Protection
Implemented
Implemented
Implemented
Implemented
Inrush Protection Circuitry
Implemented
Implemented
Implemented
Implemented
On/Off Command
Implemented
Implemented
Implemented
Implemented
EMI
SR1-91
SR1-91
SR1-0106
SR1-0106
Delivery/Qualified
Yes
Yes
Yes
Yes
Quantity
4
4
8
7
Customer/Program
Classified
TRW/MDS
TRW/MDS
NRL/HTSSE
Item
#13151 PCM
#13082-1 LSPC
#13082-2 HSPC
12756 A2 Module
Number of Outputs
4
3
4
2 per side
Redundant
Fully
Fully
Fully
Fully
Output Power (Watts)
50 per side
42 per side
170 per side
15 per side
Number of Linear Regulators
2 per side
None
None
2 per side 4 total
Efficiency (Percent)
73%
78%
78%
72%
Weight (lbs)
9
5.5
10
Size (inches)
9.3 x 6.4 x 3.0
10 x 5 x 2.5
10 x 10 x 3.0
Switching Freq (kHz)
62
62
62
62
Radiation Environment (Si)
50 Mrad external
100 krad external
100 krad external
100 krad external
Output Ripple
15 mV
17 mV
17 mV
1 mV
Overvoltage Protection
Implemented
Implemented
Implemented
Implemented
Reverse Polarity Protection
Implemented
Implemented
Implemented
Implemented
Overcurrent Protection
Implemented
Implemented
Implemented
Implemented
Inrush Protection Circuitry
Implemented
Implemented
Implemented
Implemented
On/Off Command
Implemented
Implemented
Implemented
Implemented
EMI
MIL-STD-461B
MIL-STD-1547
MIL-STD-461B
MIL-STD-1547
MIL-STD-461B
MIL-STD-1547
MIL-STD-461B
equivalent
Delivery/Qualified
Yes
Yes
Yes
Yes
Quantity
1
1
2
2
Customer/Program
NRL/HTSSE
Aerojet/SSMIS
Aerojet/SSMIS
Loral/N-Star
Item
#12756 A4 Module
#12545 Signal Processor
#12546 Scan Drive
#13202 10 Models
Number of Outputs
5
14
3
1 to 3
Redundant
Fully
5 Outputs Fully Redundant
Non-Redundant
Non-Redundant
Output Power (Watts)
30 per side
75
4.5
2 to 10
Number of Linear
Regulators
5 per side
10 total
10 per side
15 total
None
2
Efficiency (Percent)
72%
72%
72%
70%
Weight (lbs)
5
0.9
.25
Size (inches)
11 x 7.2 x 4
5.7 x 2.4 x 1.6
1.2 x 3 x 0.5
Switching Freq (kHz)
62
62
62
350
Radiation Environment (Si)
100 krad external
100 krad external
100 krad external
100 krad external
Output Ripple
1 mV
3.5 mV (with linear regulators
8 mV (with linear regulators
1 mV
Overvoltage Protection
Implemented
Implemented
Reverse Polarity Protection
Implemented
Implemented
Implemented
Implemented
Overcurrent Protection
Implemented
Implemented
Implemented
Implemented
Inrush Protection Circuitry
Implemented
Implemented
Implemented
Implemented
On/Off Command
Implemented
Independent command of 3 converters
Implemented
None
Implemented
EMI
MIL-STD-461B
equivalent
MIL-STD-461B
MIL-STD-1547
MIL-STD-461B
MIL-STD-1547
MIL-STD-461B
MIL-STD-1547
Delivery/Qualified
Yes
In process
Yes
Yes
Quantity
2
7
12
220
Space Heritage - DC/DC Converters
FEI Has a long history of producing space-qualified DC/DC Converters, and builds DC-DC Converters to order.
A partial list follows:
Power Converter Units (PCUs)
Watts
Outputs
Input Voltage
Redundancy
Special
Rad-Hardness
4
3
27 to 29 VDC
15
6
22 to 34 VDC
YES
20
3
22 to 34 VDC
YES
22
6
22 to 34 VDC
YES
YES
25
3
22 to 34 VDC
YES
YES
30
6
22 to 34 VDC
YES
30
3
19 to 36 VDC
YES
1500 & 3000 VDC
24 to 34 VDC
YES
100
18
22 to 34 VDC
YES
170
6
YES