Oscillators 3
#oscillator
#signal generation
#frequency
#waveform
#electronics
#circuit design
#sine wave
#square wave
#triangle wave
#RC circuit
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Oscillator with frequency doubled output
The frequency of the current-controlled oscillator can be doubled by feeding a portion of the square-wave output from pin 5 back to the input at pin 3. This configuration allows the quadrature detector to operate as a frequency doubler, resulting...
SINE WAVE TO SQUARE WAVE CONVERTER
The sine input is AC coupled by capacitor C. Resistors R1 and R2 bias the input midway between Vn and Vp, the input threshold voltages, to provide a square wave at the output.
The circuit described utilizes an AC coupling technique...
Basic RF Oscillator circuit diagram
Experimenting with the size of the coil and the number of turns can influence the frequency and signal output of the oscillator. The signal can be received using a standard FM radio receiver. The input signal should be coupled via...
Simple Square wave Generator
This simple circuit generates a good and stable 1V peak-to-peak square wave at 100Hz, 1KHz and 10KHz using a single 1.5V cell as power supply. An useful feature of this circuit is that frequency changes can be obtained by switching...
2MHz square-wave generator
With the values shown, the circuit generates a 2-MHz symmetrical square wave. Changing capacitors C1 and C2 to 0.01 µF results in a frequency of 500 Hz. For the particular integrated circuits and power supply voltages (5.0 V), the reliable...
Acousto-optic detector circuit to measure the crystal
The circuit consists of a capacitance three-point oscillator, an isolation level, a voltage doubler rectifier circuit, a stereo sound circuit, and a flash display circuit. It can detect the quality of a crystal; a good crystal will emit a "Didi"...
Sine Signal Generating
The circuit is capable of changing the frequency range, with the oscillating signal adjustable via potentiometer RP1. The output resistance is low (1 kΩ), making it suitable for various control circuit applications as a signal source. In this design, the...
Variable Square Wave Generator Circuit
This simple square-wave generator produces a variable frequency output ranging from 2800 Hz to 80 kHz, as indicated by the specified values. The frequency can be adjusted using potentiometer R1.
The square-wave generator circuit typically employs a combination of resistors, capacitors,...
Sine wave oscillator II
In this circuit the gain is provided by a FET type op-amp. I have used an LF351, which may be hard to obtain, but the TL071CN or TL081CN may be used and have a faster slewing rate than the LF351....