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IKu
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does anyone know where i can find a frequency to voltage converter or know how to make one? preferably using a low voltage supply... thanks!
Frequency to voltage? I'm not sure I understand what you are trying to do - they are unrelated to each other.Originally posted by IKu
does anyone know where i can find a frequency to voltage converter or know how to make one? preferably using a low voltage supply... thanks!
Use the LM324 quad op amp. With two of the amps, some resistors, a npn transistor, and a capacitor, you can make a good Voltage Controlled Osicllator( w/ triangular and square wave outputs). The chip can use a wide supply voltage; 3 to 30 vdc.does anyone know where i can find a frequency to voltage converter or know how to make one? preferably using a low voltage supply... thanks!
Since the output is 66rpm per volt, at full scale (12 volt output), your input would be 792rpm. I bet you engine will turn more than this? The way I see the circuit, if you change the 100kohm resistor to 10kohm, the full scale output would be about 10 time grater (7920rpm).they have example diagrams using this piece:
https://netfiles.uiuc.edu/ericlin/www/ftov.jpg
would this work?
No, I'm the one screwed up. You're right. 66Hz=3960cycles(rpm)/min so at 2volt you would have 7920rpm.i think the output is 66Hz/volt, so multiplying that by 60 would give me rev/min, right? so even at 2 volt output, i would be at like 8000 rpm i think, unless my understanding is screwed up.
Vcc would be attached to your 12 volt battery source. Fin would attach to some sort of sensor that pulses each time the engine goes through one revolution(sense the No. 1 spark plug firing). Make sure that the pulse in not grater than Vcc so that you don't damage the input circuit of the chip.my understanding is Vcc is voltage supply so the 12 volt Vcc would be perfect with the car battery, Fin is the frequency signal, so i just connect th tachometer signal to this?
You will also need a way to mount the components. Check out prototype circuit boards.and i would also need 2 capacitors and 3 resistors for this to work?
Yes. Attach your voltmeter across this resistor.i'm supposed to take the voltage output from right before the 10k (10,000?) ohm resistor which then goes to ground?
No. That is the symbol for AC (Alternating Current). In you case, the AC will actually be more of a square-wave instead of sinusoidal.what is that curvy line in a circle by Fin, is that a fuse?
A frequency voltage converter, also known as a frequency converter or frequency changer, is a device that is used to convert the frequency of an alternating current (AC) electrical signal. It typically converts a higher frequency signal to a lower frequency signal, or vice versa.
A frequency voltage converter works by using electronic components, such as transistors and capacitors, to manipulate the input AC signal. It first uses a rectifier to convert the AC signal to a direct current (DC) signal, then uses an inverter to convert the DC signal back to an AC signal with the desired frequency.
Frequency voltage converters are commonly used in industrial settings to power equipment that requires a different frequency than the standard power supply. They are also used in renewable energy systems, such as solar panels and wind turbines, to convert the variable frequency of the energy source to a constant frequency for use in the electrical grid.
One of the main advantages of using a frequency voltage converter is that it allows for the use of equipment that is designed for a different frequency than the standard power supply. It also helps to improve the efficiency of renewable energy systems by converting the variable frequency of the energy source to a consistent frequency for use in the grid.
Yes, there are several types of frequency voltage converters, including rotary converters, solid-state converters, and cycloconverters. Each type has its own unique design and capabilities, and the type used will depend on the specific needs and requirements of the application.