Battery Charger Converter

BC14 BC28jpgThe BC-Series is a pulse width modulated DC to DC converter that provides regulated output power.  These converters will transform an unregulated 28Vdc to a regulated and adjustable DC output.

The BC-Series is primarily designed to charge or trickle charge Ni-Cad, lead acid and jell cell batteries.  The charging voltage and current limiting point is adjustable.


  • Provides an output to indicate "charged" or "charging" state.
  • Positive logic and regulation for output overvoltage protection.
  • Output current limit is adjustable via an internal trim pot.
  • Designed to meet various portions of MIL-Std-704 notice 3,  Mil-Std 202 and Mil-T-5422F class 1A. 

Input Voltage: 28Vdc nom.
  20 to 36Vdc Normal Range
Input Current: 3.0 amps @full load
VA Rating: 70VA
Model: BC14 BC28
Output Voltage: 14+- 1Vdc 28 +-2Vdc
Output Current: 5 +- 1 amp 2.5 +- .5 amp
Efficiency: 80% 85%
Regulation: 2% for line, 2% for load and 2% for temperature.
Output Ripple: 25mVp-p
Output Current: Output current limited to approximately 125% of rating.
Indicator: Outputs for charging and charged indicator (LED).
Protection(OV): Output voltage is limited to approximately 125% of rating even during an internal failure.
Temperature: -55°C to +71 °C
Altitude: 50,000FT
Connector: Mates with MS3106A14S-5 S
Finish: Gold iridite per MIL-C-5541 Class 1A
Weight: 1.5 LBS (.683 kg)
Size: 2.3" X 2.3" X 6.8"
  5.7 X 5.7 X 17.3 cm
  Less protrusion of connector and screw heads


Outline Drawing | External Wiring