Simple variable frequency oscillator circuit
#variable frequency
#oscillator
#signal generator
#waveform
#frequency control
#electronics
#circuit design
#sine wave
#square wave
#RC circuit
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Pure Sine-Wave Generator
This circuit generates a pure sine wave with a total harmonic distortion (THD) of -80 dB and a frequency equal to the cutoff frequency (fc) of the filter in IC3. It utilizes a counter, an 8-channel analog multiplexer, and a...
coil coupled operation metal
The metal detector presented may represent a new category in its field. After some exposure, it has been recognized as such by those familiar with it. This device is based on a standard transformer coupled oscillator (TCO), which is why...
Rounding Off a square wave
To "round" your square wave, you need to integrate it twice; once to produce a triangular wave, and a second time to produce a parabolic waveform. A parabolic wave looks pretty much sinusoidal. You can do this passively using a...
Adjustable High/Low Frequency Sine wave generator
This circuit utilizes the versatile MAX038 function generator. While some advanced features of this integrated circuit (IC) are disabled in this configuration, it is capable of generating sine, triangle, and square waves by adjusting the A0 and A1 pins, as...
3 square waves generator
The circuit generates three square wave outputs with a 120° phase difference between each output. The reference clock frequency is set to twice the desired output frequency. This can be achieved using a crystal oscillator followed by a series of...
Microcontroller Clocking a Transmitter?
The core of any transmitter is typically an oscillator circuit, and in simple transmitters, such as QRSS devices, a crystal is often used. Frequency adjustment is achieved by modifying the capacitance to ground on one of the crystal's legs. Simple...
Variable Frequency And Duty Cycle Oscillator
A discrete oscillator circuit illustrated in the schematic diagram below is a variable duty cycle and variable frequency oscillator, which can be utilized to generate various output waveforms.
The discrete oscillator circuit is designed to produce oscillations with adjustable frequency and...
Mini Audio Signal Generator
A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than refinement.
An audio test generator is an essential tool in the field of audio engineering, primarily...
5-V-oscillator
This low-cost oscillator is consistently self-starting and capable of operating from over 1 Hz to 10 MHz, requiring only five components. The period of oscillation can be calculated using the relationship: P = 5 x 10^3 C seconds when C...