Digital / Logic Electronic Circuits, page 4

Digital / Logic Circuits   Page 4
Digital or Logic Circuits: #'s    A     B     C     D     E - F     G - H
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Last Updated on: Friday, March 23, 2012 04:30 PM

Circuits Designed by Dave Johnson, P.E. :

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.

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.

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

C in Embedded Systems & the MicroController World - National Semiconductor Application Note (app note added 08/08/08)

Calculating Frequency Setting Resistors when Using the ML4835/ ABR-42019 - Fairchild Application Notes / (app note added 6/06)

Calculating Program Memory Checksums using a PIC16F87x - Microchip Application Note Published 6-Nov-98 (app note added 2/06)

Call Sign Annunciator - (electronic circuit added 4/05)

Camera Interface - project shows how a CMOS ‘Camera On a Chip’ image sensor can be interfaced to an XSA-100 Board through an I2C bus. The pixel data is buffered in the XSA-100 SDRAM and is then uploaded through the parallel port to be displayed on a PC. (added 4/02)

Camera Subs as a Scope Camera - 12/09/99 EDN-Design Ideas.....A digital camera can be a handy substitute for an oscilloscope camera for older scopes that cannot output hard copy or digital data. A digital camera provides instant results and allows you to easily enhance the image and then add it to reports or Web pages..... [Design Idea by Allen Moore, Redmond, WA]

CAN Bootloader for PIC18f can MicroControllers - Microchip Application Note Published 27-Aug-04 (app note added 2/06)

CAN System using Multiple MCP25050 I/O Expanders - Microchip Application Note Published 4-Nov-02 (app note added 2/06)

Canopen Stack for PIC18 Ecan MicroControllers - Microchip Application Note Published 12-Oct-05 (app note added 2/06)

Casio QV-200 Digital Camera Cable. - Lose your cable? Build it yourself and save $29. Fits many QV models......

CD ROM Drive as Digital Audio CD Player - (circuit / schematic design added 6/06)

Centronics Port D/A converters & low-pass filter - (design circuit added 8/02)

Characterizing Digitally Modulated Signals with CCDf Curves - Aligent Application Note (app note added 04/05/06)

Chinese Translation: Design Guidelines for Off-line Forward Converters using FPS/ AN-4134SC - Fairchild Application Notes / (app note added 6/06)

Circuit and software provide accurate recalibration for baseline PIC microcontroller’s internal oscillator - 1-May-08 Issue of EDN A simple circuit and an assembly-language program allow you to recalibrate the internal oscillator of a PIC microcontroller..... [Design Idea by Noureddine Benabadji, University of Sciences and Technology, Oran, Algeria]

Circuit Applications of the AD2S80 & AD2S81 Resolver to Digital - AN-265 Analog Devices Application Notes (app note added 2/06)

Circuit Applications of the AD2S90 R/D Converter - AN-230 Analog Devices Application Notes (app note added 2/06)

Circuit controls ratiometric or simultaneous power-up of multiple rails - 13-May-04 Issue of EDN Many applications use FPGAs, ASICs, or DSP chips, which usually require multiple voltage rails, typically two the core voltage and the I/O voltage. The core voltage is usually lower than the I/O voltage. Guidelines for determining how to power up two orvoltage rails depend on the part and the manufacturer you use..... [Design Idea by Dirk Gehrke, Texas Instruments, Freising, Germany]

Circuit Converts between TTL & Shifted Ecl - 08/15/96 EDN-Design Ideas.....The bidirectional circuit in Figure 1 translates TTL to shifted ECL (SECL]. There are currently no IC's available that perform this type of level translation. SECL levels correspond to either ECL or PECL referenced to a VCC of 2V and a VEE of -2.5V. You frequently encounter these levels in situations where the outputs of the ECL logic terminate..... [Design Idea by Sylvia Planer and Paul Sofianos, Motorola LICD, Chandler, AZ]

Digital or Logic Circuits: C's continued

Digital or Logic Circuits: #'s A B C D E - F G - H
I - K L M - O P Q - R S T U V - Z