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KicadEuroPowerCon

Powerplane for Eurorack Doepfer connectors

Status - Rev B board in prototest - Virtual GND fail

Initial

Stage Detail Status
create material sch/pcb  produced Rev B
gerber  produced and uploaded RevB
production ordered OK
produced OK
delivered OK

Preliminary validation

Test Detail Status
Initial Inspection Visual - Component Mounting OK
Initial Technical Test +-20V in +9V in OK
+/-12v out +5V out  OK
LED's OK
Initial Product Test Powercon burn in with 10pin VCF OK
Initial Product Test Powercon 16pin OK
Initial Product Test Virtual GND FAIL - see ERRATA - Working after workaround
Initial Product Test 18-24V single ended bypass reg VCO - OK

Secondary validation

Test Detail Status
Product Test Powercon burn in 10pin VCF ok
Product Test Powercon 16pin VCO ok
Quality Linear Regulator Noise   
Quality Dual 12v Switched Mode PSU Noise   
Quality Single 30v Switched Mode PSU Linear Regulator Noise   
Quality Single 24v Switched Mode PSU Noise   
Input noise
GND noise
Output Noise (no 7812/7912 reg - 0R5 resistor replaced common mode filter)
Long Term Product Test ongoing

Errata

  • Q2 BD140 err in schematic - C and E flipped by mistake
  • Q2 Pin 1 and R11 connected to GND by mistake.

Issues and Notes

  • fuse holder for +5V should be changed
  • virtual GND should be powered behind fuse
  • Q2 becomes warm due to higher load on the positive supply when using Virtual GND on single ended supply.

Physical Construction

100x100mm Optional cut in 2 where the top part can be used as a normal regulator board.

Features

+/- 12V Supply

  • Requires +-14,5v to +-27v. Input can be either linear transformer with/without bridge rectifier, or switched mode.
  • Max 1,5A will require additional cooling of the regulators and larger diodes.
  • Optional disable regulation
  • Optional synthetic GND if only single ended supply is available.

+5V Supply

  • Requires 7-25V input either as linear transformer with/without bridge rectifier, or switched mode PSU.
  • Optional input from +15V thru supply
  • Max 1,5A will require additional cooling of the regulators and larger diodes.
  • Optional disable regulation

Thru

  • Both 7V and +-15 input sections can be sent thru to a second module for daisy chaining of modules.

Reg out

  • Regulated outputs can be send out to other power distribution modules or directly to Synth modules that does not require the Doepfer 10pin or 16pin power input.

Board Layout

  • Top - Power in
  • Top Right - Regulated power out
  • Bottom - Doepfer Powercon

Electrical Construction

Intended function

Schematic

3D

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