Page 13 Clock Circuits free electronic circuit links

Clock Circuits Page
Clocks: #-A B-C D-G H-O P-S T-Z

Last Updated on: Wednesday, June 02, 2021 04:22 AM

Circuits Designed by Dave Johnson, P.E. :

Service Request Beeper - A single press of a pushbutton switch turns on a beeper for one second but can’t be activated again for 60 seconds. . . . [Hobby Circuit designed by David A. Johnson P.E., 09/25/05]

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

Scheme speeds access to µP's real-time clock - 06/05/98 EDN Design Idea (Page contains several design ideas, please scroll to find this one) The DS5000T (Dallas Semiconductors, www. dalsemi. com) is an 8051-compatible processor that integrates nonvolatile memory and a real-time clock. This module has an impressive set of functional extensions and security features, which makes it particularly useful for all-in-one embedded systems. Unfortunately, access to the real-time clock is complicated and thus inefficient. . . . [by Jerzy Chrzaszcz, Warsaw University of Technology, Warsaw, Poland]

Science of Timekeeping - Application Note. . . [Aligent]

Service Request Beeper - A single press of a pushbutton switch turns on a beeper for one second but can’t be activated again for 60 seconds. . . . [Hobby Circuit designed by David A. Johnson P.E., 09/25/05]

Shift Register Divides Clock - 01/05/95 EDN Design Idea Check the circuit in Fig 1; it's more subtle than it first appears. The 74HCT165 parallel-in, serial-out shift register digitally divides an input clock by 2, 4, 8, or 16, depending on the bit pattern you load into the device. Table 1 lists bit patterns f. . . [by C Shankar, ITI Ltd, Bangalore, India 01.06.95]

Shot Clock 24 Second Timer - This is a circuit intended to be used in basketball shot clock. . . . [Circuit designed by Milano de Guzman]

Sidereal clock project withs - . . . [Written by Hans Summers]

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Clocks: #-A B-C D-G H-O P-S T-Z