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Digital /
Logic Circuits Page 4a
Digital or Logic Circuits: #'s
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Last Updated on:
Friday, October 16, 2009 03:41 AM |
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| Circuits
Designed by Dave Johnson, P.E. : |
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C-MOS INVERTER MAKES LOW POWER AMP
With the addition of one resistor and a capacitor, some common logic ICs can be
transformed from digital to analog duties. This circuit outlines some the
features to expect from different inverter ICs.
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CIRCUIT FORMS DIVIDE BY 1.5 COUNTER
Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit
with another flip/flop, you could also generate a divide by three function.
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Links to electronic circuits, electronic schematics, designs for
engineers, hobbyists, students & inventors:
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Circuit for measuring motor speed uses low-cost components - (Design Ideas - EDN,
11/08/2007) A microcontroller-based circuit provides both an LCD readout and an
analog motor-speed output. (electronic design idea added12/07) |
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Circuit Forms Industrial Grade Digital Potentiometer - 09/20/01 EDN Design Ideas
/ (added 1/05) Both ac and dc motors in modern industrial systems often
receive their control from PLCs (programmable-logic controllers) in a control room
safely away from the process. If an operator must manually set the motor speed while
observing the process, the component of choice is usually an industrial-grade
potentiometer.... |
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Circuit Gang Programs EEPROMs over I 2 C Bus - 09/13/01 EDN Design Ideas /
(added 02/05) You use the fully controlled circuit in Figure 1 to parallel-program
two-wire serial EEPROMs via the I2C bus. Gang programmers must address all memory
devices during a write operation. To verify the memory contents, however, the system
must address only one memory at a time during read operations.... |
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Circuit Programs Atmel AVR Microcontrollers - 03/30/00 EDN-Design Ideas / (added
2/06) |
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Circuit Provides Watchdog for Microcontrollers - 12/26/02 EDN Design Ideas /
(added 1/05)The watchdog circuit in Figure 1 uses a single NAND Schmitt-trigger IC. The
circuit is more cost-effective than dedicated, commercially available watchdog ICs. The
circuit generates an active-high reset signal upon power-up and remains in a low state
as long as the control input receives pulses. Whenever the pulsing at the control input
stops, whether the circuit is in a high or a low state, th...... |
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Circuit Transmits Arinc 429 Data - (07/11/02 EDN Design Ideas / (added
1/05)The ARINC (Aeronautical Radio Inc) 429 specification defines the air transport
industry's hardware and protocol standards for the transfer of digital data between
avionics systems. Circuitry that can implement elements of the 429 spec is often an
essential part of control and sensor electronics intended for the aviation
environment.... |
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CLC5526 Diversity Receiver Chipset - National Semiconductor Application Note
(app note added 2/06) |
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CLC5902 Diversity Receiver Chipset - National Semiconductor Application Note
(app note added 2/06) |
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CLC5956 Diversity Receiver Chipset - National Semiconductor Application Note
(app note added 2/06) |
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Clearing the Software Write-Protect Feature on the 24lcs52 - Microchip Application
Note Published 23-Feb-04 (app note added 2/06) |
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Clock - Scroll down to find link to circuit drawing and circuit
explanation….(electronic design added 10/06) |
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Clock Design using the PIC16c54 for LED Displays and Switch Inputs - Microchip
Application Note Published 26-Aug-97 (app note added 2/06) |
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Clock divider - (circuit added 7/02) |
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Clock Doubler for CMOS Logic - Exclusive OR gate (added 4/02) |
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Closed Caption Decoder - This is a closed-caption decoder with serial output, based
on a PIC16C71, an Élantec EL4581C sync separator, and an LM393 dual comparator (for data
slicing with automatic threshold). (added 3/03) |
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CMOS IC Makes Low Cost Digital Potentiometer - 01/18/96 EDN-Design Ideas / (added
6/06) A growing trend in the design of electronic equipment is to replace analog knobs
used to increase or reduce a continuous signal (such as volume or brightness) with "up"
and "down" keys. However, replacing a low-cost analog potentiometer with a digital
potentiometer can be costly. The low-cost circuit.... |
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CN-4: The COP444l Evaluation - National Semiconductor Application Note
(app note added 2/06) |
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CN-5: Oscillator Characteristics of COPS Microcontrollers - National Semiconductor
Application Note (app note added 2/06) |
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CN-6: TRIAC Control using the COP400 Microcontroller Family - National Semiconductor
Application Note (app note added 2/06) |
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Code Development for the PIC16c52 - Microchip Application Note Published 26-Aug-97
(app note added 2/06) |
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Coding Schemes for Mixed Signal Communication - Microchip Application Note Published
18-Jul-01 (app note added 2/06) |
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Combination Lock - (schematic / circuit design added 9/02) |
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Combination Lock PIC16F84 - (schematic / circuit added 11/03) |
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Combination Lock-Digital - (electronic design added 6/07) |
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Communicating with the MCP3221 using Picmicro® Microcontrollers - Microchip
Application Note Published 2-Aug-02 (app note added 2/06) |
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CompactPCI in Wireless Base Stations - Agilent Application Note (app
note added 6/06) |
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Comparing can and Ecan Modules - Microchip Application Note Published 5-Mar-04
(app note added 2/06) |
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Comparison of Low End 8 Bit Microcontrollers - Microchip Application Note Published
26-Aug-97 (app note added 2/06) |
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Compass Schematic - (electronic diagram added 6/03) |
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Configuring the TMC22x5y to Pass Closed Caption Data / AN-52 - Fairchild Application
Notes / (app note added 6/06) |
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