O circuito lógico TTL é um dispositivo TTL que possui quatro portas lógicas AND de duas entradas cada porta. Ele é usado, principalmente, em circuitos. jpg ( × pixels, file size: 15 KB, MIME type: image/jpeg). Open in Media English: chip Date, 14 Circuito integrado Utilice dos CI y un CI Contador decimal Esto se hace iniciando el circuito con cada uno de los seis estados no utilizados mediante las entradas de .

Author: Narisar Zukus
Country: Puerto Rico
Language: English (Spanish)
Genre: Art
Published (Last): 13 November 2013
Pages: 314
PDF File Size: 16.63 Mb
ePub File Size: 6.52 Mb
ISBN: 705-4-70113-893-3
Downloads: 32367
Price: Free* [*Free Regsitration Required]
Uploader: Mit

The fact that the outermost shell with its 29th electron is incomplete subshell can contain 2 electrons and distant from the nucleus reveals that this electron is loosely bound to its parent atom. Wien Bridge Oscillator c. Variation of Alpha and Beta b. Common-emitter input characteristics may be used directly for common-collector calculations. The amplitude of the TTL pulses are about 5 volts, that of the Output terminal 3 is about 3. The greatest rate of increase in power will occur at low illumination levels.

Experimental Determination of Logic States a. Enter the email address you signed up with and we’ll email you a reset link. At low illumination levels the voltage increases logarithmically with the linear increase in current. From Laboratory data, determine the percent deviation using the same procedure as before. No significant discrepancies 8. Except for low illumination levels 0.


Numeric Logarithmic fC low: Such divergence is not excessive given the variability of electronic components. Self-bias Circuit Design a.

For a more detailed analysis or checking the effect in the ventilation circuit due to mining changes, computational simulation can be used. Computer Analysis PSpice Simulation 1. Curves are essentially the same with new scales as circuiyo.

Both intrinsic silicon and germanium have complete outer shells due to the sharing covalent bonding of electrons between atoms. Q terminal is one-half that of the U2A: The importance to note is that the D input can be negative and positive during the time that the Q output is low.

See circuit diagrams above. The voltage divider configuration should make the circuit Ciruito independent, if it is well designed. A donor atom has five electrons in its outermost valence shell while an acceptor atom has only 3 electrons in the valence shell.

In general, Class A amplifiers operate close to a 25 percent efficiency.


Filejpg – Wikimedia Commons

AC Voltage Gain of Amplifier a. Yes, it changed from K to a value of K. There will be a change of VB and VC for the two stages ciecuito the two voltage divider B configurations are interchanged.

7048, the Si has a higher firing potential than the germanium diode. The voltage level of the U2A: As noted in Fig. The difference in the experimentally determined propagation delay was 13 nanoseconds compared to a propagation delay of 12 nanoseconds as obtained from the simulation data. High Frequency Response Calculations a.

However, for non-sinusoidal waves, a true rms DMM must be employed. For information regarding permission swrite to: It is larger by 5. For forward bias, the positive potential is applied to the p-type material and the negative potential to the n-type material.

Consequently, small levels of reverse voltage can cicruito in a significant current levels. Computer Exercises PSpice Simulation 1. See Circuit diagram above.