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The 74190 is an up/down decade counter. Counters use frequency division to achieve a counting sequence.
To answer your question, it depends on the input frequency. The Qa output will divide the clock input by 2 so if the input is 100Hz, Qa's output is 50Hz.
Since this is a decade (0 to 9, or truncated sequence) counter and not a binary (0 to 15, or full sequence) counter, the outputs Qb, Qc and Qd divide the input but their outputs are not symmetrical (equal time high and time low). Qb and Qc produce 2 pulses for every 10 input pulses, therefore divide the input clock by 5. Qd produces one output pulse for every 10 input pulses, therefore divides the input by 10.
The easiest way to visualize this is to write out the binary count in column format, starting at 0000 and ending at 1001, and looking at each of the output patterns.
To produce the 50Hz output, assuming you are not concerned over symmetry:
-input clock 100Hz for 50 Hz on Qa
-input clock 250Hz for Qb or Qc output of 50Hz
-input clock 500Hz for Qd output of 50Hz
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Hi I'm a barber. can i buy a transformer that can give an output of 120V and at 60HZ in England. Its for my clippers and trimmers. Is there such thing?
You can get a transformer that converts the UK's 230V power to 120V, but you cannot get a transformer that will convert from 50Hz to 60Hz. Often, US equipment can work, except that they will work hotter and less efficiently on the 50Hz power. Consult your clipper and trimmer documentation - you may find that it will work just fine on 50Hz.
Why does the output wave shape give spike voltage in push pull inverter?
Due to inductance there is a spike in output voltage
Can a Hp scanner with a non functioning power adapter with an output of 12 volts dc 1.25a be replaced with an adapter with output 16v dc 1.3a?
You give it more volts and it will burn out something!!
What is the Effect of quiescent point close to cutoff?
The output voltage swing will not reach its maximum. This would then give clipping of one side of the signal which means the signal output is not a amplified representation of the original signal.
Why would one overclock a motor?
Overclocking is when a component is made to go faster than its designed speed in order to get a higher output or a better response or reaction from it. It is used for a vehicle in order to give a higher power output.
Hi I'm a barber. can i buy a transformer that can give an output of 120V and at 60HZ in England. Its for my clippers and trimmers. Is there such thing?
You can get a transformer that converts the UK's 230V power to 120V, but you cannot get a transformer that will convert from 50Hz to 60Hz. Often, US equipment can work, except that they will work hotter and less efficiently on the 50Hz power. Consult your clipper and trimmer documentation - you may find that it will work just fine on 50Hz.
Which transistor give inverted output?
ce
Why is a computer an output?
Speaker,monitor,printer are output devices. these give out information regarding the computer.
Witch three parts of the computer give output?
The three parts of a computer responsible for output are the data writing output, such as a CD drive or USB drive. The second thing is the display, or screen. The third is the speaker.
What kind of electrical circuit can sense an electrical signal process it and give an electrical output?
Automatic garage door opener with a remote The answer above will give a mechanical output not an electrical output. Photocells come to mind.
If two induction motors have same ratings except that one is designed for 50Hz and the other for 60Hz then which one will have larger size and why?
the motor with frequency 60Hz will be larger. As frequency is inversly proportional to the flux, now for 60 Hz the flux will be small and it will be not enough to give us the required output (given that output of both motors are also equal), so to increase the flux we will increase number of tuns of stator's winding and hence the machine's size will increase.
Is a computer a output device?
Speaker,monitor,printer are output devices. these give out information regarding the computer.
How do you estimate glass wall cleaning prices?
It depends on the output. If the output was good and totally cleaned, I will give good price with tip, but if it's not, I will give the regular price.
Why does the output wave shape give spike voltage in push pull inverter?
Due to inductance there is a spike in output voltage
What pieces of hardware give output from the computer?
The screen - or a printer.
What are two computer parts that give output?
monitor and speakers
What are output devices and explain their functions also?
output devices are those who diplay or give you your results for any entered data. e.g Monitors LCDs Printers Plotters Monitors and LCDs give soft copy of your results And the other two give hard copy on papper or other printing meterials
