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Digital /
Logic Circuits Page 11c
Digital or Logic Circuits: #'s
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Last Updated on:
Wednesday, November 29, 2017 05:38 AM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Pixpand - ..... |
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PLL IC forms simple Digital phase shifter - 01/04/96 EDN-Design
Ideas.....A phase shifter is a vital block in some signal-processing and
clock-distribution applications. Another important application is in
benchmarking digital phase detectors. The circuit in Figure 1, an
especially appropriate one for evaluating phase detectors, uses only two
industry-standard ICs (CD4046 and LM311]. It relies on digital PLL
techniques..... EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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PLL Jitter & Its Effects in the can Protocol - Microchip
Application Note Published 15-Jun-04 (app note added 2/06)
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PLL Synthesis - National Semiconductor Application Note
04-Nov-1995 (app note added 2/06) |
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POS Register - Intersil Application Block Diagram.....[App Note]
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POS Self-Service - Intersil Application Block Diagram.....[App
Note] |
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Position detectors provide
Motor-control logic - 05/24/01 EDN-Design Ideas.....In the circuit of Figure
1 , assume that a brush-type dc motor must drive a load back and forth between two
endpoints on a lead screw. Optical sensors determine end of travel, and an SPDT switch
selects to which end to send the load. The sensors themselves supply all the necessary
directional logic, and a triac powers the motor with the necessary polarity of
half-wave pulses from the 13….PDF have several circuits, scroll for this one.....
[Design Idea by Steve Pomeroy and Russell Hedges, Elgar Corp, San Diego, CA] |
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Position Encoder Does Away withADC - 05/08/97 EDN-Design Ideas.....The
position encoder in Figure 1 is a simple yet powerful circuit that converts the change
in resistance of a potentiometer into a digital value without using an expensive A/D
converter. The working principle is a resistance-to-PWM converter built around the
common 555 timer IC. A change in the potentiometer's..... [Design Idea by Jose Carlos
Cossio, Santander, Spain] |
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Post-Processing Tool Sets for the Agilent Logic Analysis Systems - Agilent
Application Note (added 6/06) |
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Pot Adjusts LCD's Contrast - 02/04/99 EDN-Design Ideas..... You can
use a digitally controlled potentiometer for many purposes. In this example, you can
use the device to regulate the contrast of a standard (such as two lines by 40
characters]LCD. You can use the circuit in Figure 1 in a portable test system, in
which t.....File contains several circuits, please scroll down for this one.....
[Design Idea by Jef Collin, CSE Systems, Turnhout, Belgium] |
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Pot Corrects for System Drift - 11/10/94 EDN-Design Ideas.....The circuit in
Fig 1 looks simple but usually comes as a revelation to designers. Under control of
the system's µP, the digital potentiometer, IC1, becomes a variable set-point
reference that can adapt to the long-term drift of the variable measured. The digital
potentiometer replaces]..... EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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Potentiometer Autonulls OpAmp - 10/22/98 EDN-Design Ideas.....Op-amp
applications that need the highest possible dc accuracy are generally best served by
CMOS chopper-stabilized amplifiers, such as the LTC1050. But high-speed, low-noise
applications may require high-performance rockets, such as the 700-MHz LT1226. So what
to do..... [Design Idea by Stephen Woodward, University Of North Carolina, Chapel
Hill, NC] |
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Potentiometer Controls LCD Bias - 03/17/94 EDN-Design Ideas.....Designers of
pen-based computers can easily relegate some controls that were previously mechanical,
such as switches and potentiometers, to on-screen icons. For example, the circuit in
Fig 1 shows one way that digital logic can control the -24V-dc LCD bias using two
general-purpose I/O command lines. The DS-1669 from Dallas Semiconductor..... [Design
Idea by Michael Cortopassi, Dauphin Technology, Lombard, IL] |
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Potentiometer Controls Phase Shift - 02/15/96 EDN-Design Ideas.....You can
use dual, quad, or hex potentiometers to put all phase-shift sections under control of
a microprocessor, as in Figure 2. The DS1806 hex digital …. EDN is migrating links.
This link is not verified. Search the "title" + "EDN" for new link. |
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Potentiometer Programs & Stabilizes Voltage Reference - 05/30/02 EDN-Design
Ideas.....The potentiometer portion of a mixed-signal, digitally programmable
potentiometer adds variability to an analog circuit, and its digital controls provide
programmability. You can use a digital potentiometer in two ways in an analog circuit.
You can...../ (schematic / circuit added 11/03] EDN is migrating links. This link is
not verified. Google the "title" EDN for new link. |
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Potentiometers Enable Programmable Biquadratic Filter - 07/22/04 EDN-Design
Ideas.....Of the many types of analog filters available to designers, few allow easy
adjustments of the filter parameters. The biquadratic, or biquad, filter is an
exception, however. You can change that filter's corner frequency (ω0], Q, and gain
(H]…..... EDN is migrating links. This link is not verified. Search the "title"
EDN for new link. |
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Potentiometers: Frequently Asked Questions - Maxim Application Notes / 593 /
Nov-05.....[App Note] |
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Power circuit terminates DDR DRAMs - 14-Nov-02 Issue of EDN DDR
(double-data-rate] SDRAMs find use in high-speed memory systems in workstations and
servers. The memory ICs operate with 1.8 or 2.5V supply voltages and require a
reference voltage equal to half the supply voltage (VREF=VDD/2]. In addition, the
logic outputs terminate with a resistor to the termination voltage, VTT, which equals
and tracks VREF..... [Design Idea by Ron Young, Maxim Integrated Products, Sunnyvale,
CA] |
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Digital or Logic Circuits: #'s
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