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Potentiometer
Circuits, Page 3 Potentiometers:
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Monday, October 03, 2011 06:07 PM
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Electronic-potentiometer system has pushbutton interface -
26-Sep-02 Issue of EDN As systems grow smaller, it becomes
increasingly attractive to replace mechanical potentiometers with electronic
potentiometers, which are smaller and less expensive silicon equivalents. A
common interface for such devices comprises a Chip-Select, Increment and,
Up/ line. CS activates the device and, on a rising edge of steps the wiper
in a direction that the U/ pin indicates.... [Design Idea by Gene Warzecha
and Roger Griswold, Maxim Integrated Products, Sunnyvale, CA]
Inexpensive Relays Form Digital Potentiometer - 03/13/98 EDN-Design
Ideas....Build a digitally controlable isolated potentiometer that can tolerate
voltages up to 60-Volt dc.... [Design Idea by Robert Perrin, Z-World, Davis, CA]
LED dimmer uses only two lines - 21-Mar-02 Issue of EDN The circuit in
Figure 1provides 32 steps of brightness control-from 0 to 100%-for a backlight or
instrument panel, using just two general-purpose-microprocessor signals. In addition,
the circuit requires little board space, because it uses only three SOT-23s and one
µMax package.... [Design Idea by Jerry Wasinger, WallyWare Inc, Norcross, GA]
LED Light Dimmers uses only Two Lines - 03/21/02 EDN-Design IdeasThis
circuit provides32 steps of brightness control (from0 to100%]for a backlight or
instrument panel, using just two general-purpose-micr....PDF contains multiple
circuits, scroll to find the one of interest… [Design Idea by Jerry Wasinger,WallyWare
Inc, Norcross, GA]
