Showing posts with label delay. Show all posts
Showing posts with label delay. Show all posts
Friday, November 22, 2013
LM139 Measure delay generator
Measure delay generator (in addition identified in the same way as sequence generator), is a device which long for provide output signals on prescribed time intervals from a time reference to and will unconsciously reset while the input hint returns to ground. under schematic illustrates the design of a measure Delay Generator Circuit Diagram using LM139. The LM139 skin tone from head to foot precision comparators; allows sensing come close to GND; eliminates need in lieu of dual food and power drain apt for battery setup.
![]() |
| Delay Generator Circuit Diagram using LM139 |
Saturday, October 19, 2013
Auto Turn Off Alarm With 8 Minute Delay
This circuit uses a NE555 timer and CD4020B. When +12 Vdc is applied to the circuit, the output of IC2 is set low via C2, which turns on the relay, and IC1, a pulse generator.
IC1 pulses counter IC2. After 8192 clocks, IC2 output (pin 3) goes high, cuts off Q2, and completes the cycle.
Auto Turn-Off Alarm With 8-Minute Delay Circuit Schematic

Subscribe to:
Posts (Atom)
