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Timers and Counters Circuits, Page 1a Last Updated on:
Friday, July 18, 2008 11:33 AM Timers & Counters: Next #-APrevious #-AB-EF-LM-S T-Z
Circuits Designed by Dave Johnson, P.E. :
555 Timer Forms Simple PWM Motor Controller
Using a CMOS version of the 555 timer, this circuit can be used to control the speed of a motor by adjusting the duty cycle of the pulses sent to the motor. (added 7/06)
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students
& inventors:
AN-636: ADN2819 Evaluation Board: AN-636 Analog Devices Application Notes (app note added 2/06) This application note
describes use of ADN2819 evaluation board. The ADN2819 is a multirate clock recovery, data-retiming device based on a multiloop PLL architecture. The ADN2819 can recover clock and data at
SONET OC-3,OC-12,OC-48,and Gigabit Ernet data rates as well as 15/14 Forward Error Correction (FEC)....
Anticipating timer Switches Before you push the Button: 04/03/03 EDN Design Ideas / (added 1/05) (Editor's note: This
Twilight Zone-worthy circuit will be subject of an upcoming network sitcom, My Big Fat Anticipating Timer.) It happens to almost everyone that an apparatus or system should have been turned
off a moment ago. The device in question could be car heater, air conditioner, lights....
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