Analog PI controller with > 10MHz bandwidth. Design by Joe Tiamsuphat.
For full documentation of the circuit, see the manual. Please read the manual very carefully, especially the section "Initial Calibration" at page 14. A wrong calibration could result in damaging the circuit's output stages.
NOTE: The PI controller manual is out of date. It should still be used as a reference, but it does not document several new features. Please look at issues #2 and #3 for more information.
/fab/*: Ready-made files for immediate fabrication. There is the main PI board (pi_v2.5.3), and three "shield" boards which make assembly into the box (located in/fab/EnclosureDesign_v2.5.3_CAD) easier. See below for description./pi/*: Design files for the main PI board, including documentation, schematics, simulations, etc. The schematic/board layout are done in NI Multisim + Ultiboard./pi-frontpanel/*: Eagle board files for a frontpanel "shield" board/pi-pots/*: Eagle board files for potentiometers which set the gains, output offset, sweep amplitude./pi-shield/*: Eagle board file for adapter shield between PI board and the POTs/Frontpanel breakout boards.
Total cost is in the neighborhood of $1k per completed box (includes professionally populated PCBs, enclosure, power supply, etc.), although that number would depend on quantity ordered, whether you populate the boards yourself, etc.
There is a Protocase Designer file (in /fab/EnclosureDesign_v2.5.3_CAD
Other auxiliary parts:
| Name | Part number | supplier |
|---|---|---|
| FuseDrawer | 486-1342-ND | Digikey |
| Fuse | F2393-ND | Digikey |
| PwrEntry | 486-1302-ND | Digikey |
| HexStandoff | 36-4802-ND | Digikey |
| KnurledKnob | 226-3084-ND | Digikey |
| POT Dial | 987-1002-ND | Digikey |
| Isolated BNC | ARFX1905-ND | Digikey |
| PowerSupply | 179-2302-ND | Digikey |