| Fully Isolated 675W DC-DC Converter (Pack Specific) |
This DC-DC converter offers full isolation in the signal and power paths. The high efficiency of the
converter is best suited for EV use with a small 12V vehicle battery. The base voltage for operation is
from 120V to 156V, but can be customized for operating from 84V up to 350V. Forced Air is required
for output currents over 35A.
The internal hardware can be configured for the following options:
1) Remote on/off (converter is directly connected to the battery pack) - Standard Configuration
2) Soft Start with Auto-On (automatically restarts the converter when power is removed and reapplied for
maintenance) Option 1 (adds an internal relay board and startup circuitry)
3) Soft start with remote on/off (internal relay handles soft starting the converter). When off, the relay is
open and the converter is disconnected from the battery pack. Option 2 (adds an internal relay board and
startup circuitry)
converter is best suited for EV use with a small 12V vehicle battery. The base voltage for operation is
from 120V to 156V, but can be customized for operating from 84V up to 350V. Forced Air is required
for output currents over 35A.
The internal hardware can be configured for the following options:
1) Remote on/off (converter is directly connected to the battery pack) - Standard Configuration
2) Soft Start with Auto-On (automatically restarts the converter when power is removed and reapplied for
maintenance) Option 1 (adds an internal relay board and startup circuitry)
3) Soft start with remote on/off (internal relay handles soft starting the converter). When off, the relay is
open and the converter is disconnected from the battery pack. Option 2 (adds an internal relay board and
startup circuitry)
General Specs:
Traction battery fuse: 10A, 250V.
Output fuse: 60A recommended.
Size: 7.75"L x 4.5"W x 3.5"T
Weight: 8 Lbs
0.250" Fast-on connections for Battery Pack Input
and Enable on/off.
1/4x20 Posts for Vehicle Battery Connection
1/4 through hole mounting provisions on Bracket
Tapped 6-32 holes for fan mounting on Bracket
Traction battery fuse: 10A, 250V.
Output fuse: 60A recommended.
Size: 7.75"L x 4.5"W x 3.5"T
Weight: 8 Lbs
0.250" Fast-on connections for Battery Pack Input
and Enable on/off.
1/4x20 Posts for Vehicle Battery Connection
1/4 through hole mounting provisions on Bracket
Tapped 6-32 holes for fan mounting on Bracket
| Initiated 111006 Updated 081809 |
| Note: Latest configuration has POS and NEG output terminals located at the right side of the case. |
Narrow Range DC-DC Design Limits:
Contact Belktronix for battery pack in use.
Belktronix then designs the converter, with the
following constraints below:
Input Voltage Low limit 84V
Input Voltage High limit 385V
Output voltage high limit 15V
Output voltage low limit 12V
Example: 288V battery pack: This sets the max
input voltage at 360V (charged) and 252V
(discharged). It is within above limits.
Vout: 14.1V No Load; 13.5V@ 50A
Efficiency: >88% @ 50A, 96V.
Higher efficiency with higher input voltages.
Enable: 12V @ 10mA Optically Isolated
Idle power <3.5W No Load
Off-state Power Consumption:
Input side 0.33mA @ 120V
Output side 0.55mA @ 12V
Contact Belktronix for battery pack in use.
Belktronix then designs the converter, with the
following constraints below:
Input Voltage Low limit 84V
Input Voltage High limit 385V
Output voltage high limit 15V
Output voltage low limit 12V
Example: 288V battery pack: This sets the max
input voltage at 360V (charged) and 252V
(discharged). It is within above limits.
Vout: 14.1V No Load; 13.5V@ 50A
Efficiency: >88% @ 50A, 96V.
Higher efficiency with higher input voltages.
Enable: 12V @ 10mA Optically Isolated
Idle power <3.5W No Load
Off-state Power Consumption:
Input side 0.33mA @ 120V
Output side 0.55mA @ 12V
| DC-DC with Option 1 installed, with topside mounting bracket |
Some controllers use film capacitors in place of
electrolytic capacitors for the DC power input
side. This creates more ripple feeding the DC-DC
and requires an additional input inductor to
smooth it out. It can be installed at the time of
order for $10. Contact Belktronix for more details.
electrolytic capacitors for the DC power input
side. This creates more ripple feeding the DC-DC
and requires an additional input inductor to
smooth it out. It can be installed at the time of
order for $10. Contact Belktronix for more details.
