Current version

r3B3

Status

Work in progress

PCB manufactured

Yes (r2B1)

PCB assembled

Yes (r2B1)

BOM

Yes (TME, Mouser, Digikey, Farnell, RS)

File repository

https://github.com/eez-open/modular-psu/tree/master/dcp405
(include Eagle, Gerber and BOM files)

License

TAPR v1.0

Contributions

C4.1 (Collective Code Construction Contract)

 

DCP405_r1B1_prototype.jpg

Fig. 1: DCP405 power board prototype r1B1

 

Output power terminals
coupling capability (require BP3C backplane)

Series

Parallel

Split rails

Common ground

Yes

Yes

Yes

Yes

Feature list

  • Power input: 48 Vdc (e.g. Mean Well LRS-150F-48)
  • Max. output power: 155 W (limited by Mean Well AC/DC module)
  • Voltage regulation (CV), 0 – 40 V. Voltage set resolution (U_SET): 16-bit, read resolution (U_MON): 15-bit
  • Current regulation (CC) with 2-range (50 mA, 5 A) software auto-ranging function. Current set resolution (I_SET): 16-bit, Current read resolution (I_MON): 15-bit for each range
  • On-board power pre-regulator and bias power supply
  • On-board OVP with triac crowbar and two fuses
  • Down-programmer
  • Output enable (OE) circuit with LED indicator
  • Fault LED indicator
  • On-board power output terminals (Ø4 mm, 19 mm/0.75” pitch)
  • 20-pin pass-thru connector for output terminals coupling with other Power boards
  • Remote voltage sense with LED indicator and inverse polarity protection
  • Remote voltage programming with LED indicator
  • Galvanically isolated SPI bus for communication with the MCU board
  • I2C EEPROM for storing board specific configuration and calibration parameters
  • I2C Temperature sensor
  • Dimensions: 185 x 95 mm, 2-layer PCB