POT4b

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Also see : POT4 and POT4a

revisions from POT4a

• changed reference from TL1431 to fixed voltage MAX1631
• added circuit to make REF- and REF+ approximately symmetrical about COM
• OPAMP drives REF- and REF+ is a precise voltage above REF-

Identification

top side

bottom side

• POT4b is a green PCB with white silk screen on two sides.
• Dimensions 1.75" x 0.85"
• Two mounting holes (diameter = 0.125"), top side clearance > 0.25"
• The color of DL1,DL2 indicates the input configuration of the board

Led Indicators

• (DL1, DL2) : A pair of single LEDs indicate the present of power. These LEDs are aligned with the power input to the boards.
• DK1 : The intensity of this dual RED/GREEN LED indicates the voltage of the "position signal".

Design Files

• Media:Pot4b-sch-revb-062205.pdf
• Media:Rpot4b-pcb-top-revb-061605.pdf
• Media:Rpot4b-pcb-bot-revb-061605.pdf
• Gerber files and Tango DOS source (6-16-05)

Bill of Materials

Bill of Materials