Monday, April 13, 2015

Circuit Schematic 40KHZ LED TEST SIGNAL GENERATOR using 7404 IC

Robometricschool. - Here is Circuit Schematic 40KHZ LED TEST SIGNAL GENERATOR using 7404 IC. The main component in this circuit schematic is 7404 IC as the digital or TTL IC that must be powered with 5 Volt DC and also passive component x-tal that will produce or generate signal.

Circuit Schematic

Description

Circuit schematic like in figure 1 above is Circuit Schematic 40KHZ LED TEST SIGNAL GENERATOR using 7404 IC. This 40KHz crystal controlled oscillator circuit drives an infrared LED with powerful 40ma pulses.  The circuit can be used to test optical communications circuits, designed to receive 40KHz modulated light signals.

Link Source:

  • http://www.discovercircuits.com/DJ-Circuits/40khzref2.htm


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