Showing posts with label frequency. Show all posts
Showing posts with label frequency. Show all posts
10Hz 60Mhz Frequency Meter
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10Hz,
60Mhz,
frequency,
Meter
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The frequency meter can be used to measure the frequency of 10 Hz-60Mhz. The frequency meter has a level of precision or resolution of 10Hz. The frequency meter can be used to measure the frequency of the oscillator, transmitter, frequency generator, cristal, and others during the working frequency trsebut devices in the range 10 Hz - 60MHz. Circuit frequency meter using PIC 16F628A dibagun and with the viewer of the LCD 16 × 2. Frequency meter circuit is working with the working frequency of 4MHz crystal. The series is an electronic frequency meter is quite simple to make. The following picture of the frequency meter circuit.
The series of frequency meters above basically works with the source voltage 5VDC. In this series of 7805 voltage regulator has been installed, so it can be operated with a voltage of 5 - 15VDC.
Frequency to Voltage Converter Circuit
IC LM2917 Frequency to Voltage Converter
IC LM2917 IC chip is designed specifically as a Frequency to Voltage Converter or Frequency to Voltage converter. In its use to applications Frequency to Voltage Converter IC LM2917 requires few external components.
There are several examples of applications of Frequency to Voltage Converter IC LM2917 datasheet that is included in the LM2917 IC. In this article series Frequency to Voltage Converter IC also taken from the LM2917 datasheet. The advantages of single chip LM2917 Frequency to Voltage Converter is able to provide instantaneous volt output o at time of frequency change 0 Hz. Very easy to apply in measuring the output frequency with the formulation of single-chip Frequency to Voltage Converter VOUT = FIN x VCC x R1 x C1.
Then the single-chip LM2917 Frequency to Voltage Converter This configuration requires only the RC only in frequency doubling. And has an internal zener regulator to aimlessly accuracy and stability in frequency-to-voltage conversion process.
Application circuit Figure IC LM2917 as Frequency to Voltage Converter
Feature-owned single-chip LM2917 Frequency to Voltage Converter
Reference to ground directly with variable reluctance
Op Amp / Comparator with transistor output
50 mA maximum output currents for application directly to the load
Frequency doubling for low ripel
Buid in zener
Linear output ± 0.3%
Application single chip LM2917 Frequency to Voltage Converter
Frequency to Voltage Converter
Rotation speed sensor applications
Speedometer
Tachometer
Cruise Control
Cluth Control
And other applications associated with the measurement of rotation speed or frequency measurements.
Voltage to frequency converters LM231 LM331
Labels:
converters,
frequency,
LM231,
LM331,
TO,
VOLTAGE
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The LM231/LM331 family of voltage-to-frequency converters are ideally suited for use in simple low-cost circuits for analog-to-digital conversion, precision frequency-to-voltage conversion, long-term integration, linear frequency modulation or demodulation, and many other functions
| Voltage-to-frequency converters LM231/LM331 |
Features Voltage-to-frequency converters LM231/LM331:
- Guaranteed linearity 0.01% max- Improved performance in existing voltage-to-frequency
conversion applications
- Split or single supply operation
- Operates on single 5V supply
- Pulse output compatible with all logic forms
- Excellent temperature stability, ±50 ppm/°C max
- Low power dissipation, 15 mW typical at 5V
- Wide dynamic range, 100 dB min at 10 kHz full scale
- Wide range of full scale frequency, 1 Hz to 100 kHz
- Low cost
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