Current version

r1B2

Status

Work in progress

PCB manufactured

Yes (r1B1)

PCB assembled

Yes (r1B1)

BOM

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

File repository

https://github.com/eez-open/modular-psu/tree/master/dcm220
(include Eagle, Gerber and BOM files)

License

TAPR v1.0

Contributions

C4.1 (Collective Code Construction Contract)

 

Output power terminals
coupling capability (require BP3C backplane)

Series

Parallel

Split rails

Common ground

No

No

No

Yes

Feature list

  • Power input: 48 Vdc (e.g. Mean Well LRS-150F-48)
  • Max. output power: 70 W per channel
  • Voltage regulation (CV), 0 – 20 V. Voltage set resolution (U_SET): 12-bit, read resolution (U_MON): 15-bit
  • Current regulation (CC), max. 4 A. Current set resolution (I_SET): 12-bit, Current read resolution (I_MON): 15-bit
  • Output enable (OE) circuit with LED indicator
  • CC mode LED indicator
  • On-board power output terminals (Ø4 mm, 19 mm/0.75” pitch)
  • 10-pin connector for Vout- coupling with other Power boards
  • Galvanically isolated SPI bus for communication with the MCU board
  • I2C EEPROM for storing board specific configuration and calibration parameters
  • On-board STM32F373C8T6 32-bit ARM Cortex®-M4 MCU, 64 KiB Flash, 32 KiB SRAM, LQFP-48 package
  • Upgradable firmware via DIB v1.0 UART lines
  • SWG/JTAG connector (optional)
  • Two temperature sensors
  • Dimensions: 145 x 95 mm, 2-layer PCB