These values can be studied from the data sheet of LM The input signal is given at pin 1 and at pin 11 we apply a reference voltage. Pin 8 and pin 9 is supplied with a constant voltage. We get a low impedance voltage at the pin 5 which is proportional to the given input frequency.
TC is a frequency to voltage and voltage to frequency converter IC. Its basic circuit connections include three resistors, two capacitors and reference voltage. We can use two TC ICs and operate both of them in the mode of frequency to voltage conversion in order to obtain the frequency difference measurements. We use two converters and we get V1 and V2 as two separate outputs.
An op amp is connected which adds both the voltages V1 and the inverted —V2 voltage. This sum will be proportional to the actual frequency difference between F1 and F2. Hence we get the frequency difference measurement in terms of frequency as well as in terms of voltages.
The diagram below shows the circuit of f requency difference measurement. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Email Address. I enjoyed reading the content of it. I was amazed by it. Keep it up. Love to see more post from you. Thank you for sharing. I have one question…. The question above by Kamra refrs to the first schematic.
Hi Mr. Ships built in 50HZ countries have electrical power systems operating at 50HZ. In this case you will need a frequency converter to match the electrical needs of ships being built, repaired or docked.
When equipment manufactured in one country and used in another, chances are that you not only have to convert the voltage, but you will also need to convert the frequency. The most common frequencies are 50Hz and 60Hz as they are used in most commercial machines , however, there are many applications not related to this issue that need for frequency converters.
Hydro power, for example produces 25Hz. So WHY are there so many different frequencies? It is very basic and has to do with the RPM that the prime power producer spins at. There are 2 basic types of Frequency Converters: Rotary Frequency Converters , manufactured with the use of a Motor Generator and Solid State Static Frequency Converter , manufactured with the use of semi-conductors and power stages. The Rotary machine is brute force as opposed to the Static machine.
The static unit is for non industrial applications. There are other factors to considered when deciding on a Frequency Converter. One factor is if you need the converter to also maintain power output when the utility is no longer available. If the Frequency Converter also needs to clean up a non stable input frequency like accepting a poor frequency range on the input and produce a stable output frequency and voltage, a Dynamic Frequency Regulator should be used.
This unit allows for a very unstable utility, while producing the required output. There are several factors which will help identify which frequency conversion solution is right for your project.
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