Analog Frequency Meter Circuit
#frequency meter
#analog
#measurement
#instrumentation
#circuit design
#signal processing
#electronics
#frequency measurement
#analog circuit
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1300 Mhz Frequency meter with prescaler
Having found a u664b prescaler chip (Telefunken) from an old TV tuner, I decided to build a valid frequency counter using PIC16F84. The prescaler I use is able to divide by 64 every frequency from 30 to 1300 MHz. The...
PC computer based frequency meter circuit diagram
A simple technique for measuring frequencies across a wide range with acceptable accuracy limits using a PC is presented. This method follows the basic principle of measuring low frequencies, where the period of a complete wave is measured and the...
Frequency Meter
This is basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop...
PC based frequency meter
The simple circuit does not provide isolation; however, its simplicity, combined with the affordability of sound cards and the protective features added by diodes 1 and 2, makes it suitable for the average user. The physical hardware includes a 20MHz...
Digital-frequency-meter
The circuit converts frequency to voltage by taking the average DC value of the pulses from the 74121 monostable multivibrator. The one-shot is triggered by the positive-going AC signal at the input of the 529 comparator. The amplifier functions as...
Frequency Meter and Pulse Generator with AT902313
Power input is to a 7805 5 volt regulator. A pair of LEDs is connected between the 5 volt supply and ground, with current limiting resistors in series and one pin on the AT90S2313 shunts the current through one LED...
Analog IO Protection
The I/O Filter Wildcard offers an efficient platform for prototyping analog circuits or for filtering, conditioning, or protecting the I/O lines of other Wildcards. It features twenty-four I/O lines that can be independently filtered or combined in customized configurations. To...
Simple digital frequency meter
A simple digital frequency meter has various applications, serving as an experiment for beginners, laboratory equipment, or a meter integrated into certain devices. It is ideal for situations where frequency measurement and digital display are required. The frequency meter is...
Interpolating Scanner Circuit
This design is for an interpolating scanner, a circuit featuring multiple signal inputs, a control voltage input, and a signal output. The output selectively transitions between inputs, smoothly fading from one to the next as the control voltage increases. A...