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Analysis of a Digitally Controlled Wien-Bridge Oscillator – Circuit Schematic
Analysis of a Digitally Controlled Wien-Bridge Oscillator
This application note analyzes the details of a Wien-bridge oscillator, shows how a JFET maintains oscillation, and demonstrates adding a digital potentiometer ...
Replacing Crystals and Ceramic Resonators with Silicon Oscillators – Circuit Schematic
Replacing Crystals and Ceramic Resonators with Silicon Oscillators
A short note describing how to replace crystal and ceramic resonator clock circuits with silicon oscillators and highlighting some of the technical advantages o...
Using a VCXO (Voltage-Controlled Crystal Oscillator) as a Clock (CLK) Generator – Circuit Schematic
Using a VCXO (Voltage-Controlled Crystal Oscillator) as a Clock (CLK) Generator
The term VCXO stands for Voltage Control Crystal Oscillator. The frequency of such an oscillator can be adjusted by a small amount through changing the control ...
Digitally Controlled Sine-Wave Generator – Circuit Schematic
Digitally Controlled Sine-Wave Generator
By removing harmonics from a square wave, this circuit generates an accurate and adjustable sine-wave output.....
Trimless IF VCO – Circuit Schematic
Trimless IF VCO
This paper is a tutorial discussion of IF VCO design considerations. A Colpitts topology is analyzed and used to explore performance impacts.....
Tracking Advances in VCO Technology – Circuit Schematic
Tracking Advances in VCO Technology
Tracks the history of voltage-controlled oscillators (VCOs) since approximately 1910. Provides examples of VCO integration in RF ICs.....
colpitts oscillator – Circuit Schematic
colpitts oscillator
Simulation of Colpitts Oscillator circuit using npn transistor and other components available in SimElectronics is shown. The feedback ratio is determined by th...
lc transistor oscillator – Circuit Schematic
lc transistor oscillator
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sine/cosine wave oscillator – Circuit Schematic
sine/cosine wave oscillator
When adding an alternating current signal to the capacitor, the wave position (the phase) of the charging current of the capacitor and the voltage of the capaci...
sine wave oscillator – Circuit Schematic
sine wave oscillator
In case of Japan, the electricity to be using in the home is 50 Hz or 60 Hz. In case of 50 Hz, the 1-cycle sine wave occurs the 50 times for the 1 second. 60 Hz...
Wien Bridge Oscillator – Circuit Schematic
Wien Bridge Oscillator
In this experiment, an oscillator is constructed using an operational amplifier and some other passive elements. This configuration for the oscillator is called...
Atari Punk Stepped Tone Generator – Circuit Schematic
Atari Punk Stepped Tone Generator
The Stepped Tone Generator is a simple dual oscillator circuit with a single pulse wave output. The first oscillator drives the pitch of the output oscillator w...
Inductive Electronic Oscillator Circuit – Circuit Schematic
Inductive Electronic Oscillator Circuit
The oscillator circuits presented on this page are from expired or non-maintained U. S. Patents. All circuits are presented in "Electronic Workbench 5. 12" or "...
Oscillator circuits – Circuit Schematic
Oscillator circuits
For successful circuit-building exercises, follow these steps: Carefully measure and record all component values prior to circuit construction, choosing resisto...
555 ramp generator – Circuit Schematic
555 ramp generator
The voltage rating on the 470 µF capacitor is not critical, so long as it generously exceeds the maximum power supply voltage. In this particular circuit, that...
555 audio oscillator – Circuit Schematic
555 audio oscillator
A oscilloscope would be useful in analyzing the waveforms produced by this circuit, but it is not essential. An audio detector is a very useful piece of test eq...
Oscillator circuits – Circuit Schematic
Oscillator circuits
The phase shift oscillator of Figure above produces a sinewave output in the audio frequency range. Resistive feedback from the collector would be negative feed...
Switchable Output Crystal Oscillator – Circuit Schematic
Switchable Output Crystal Oscillator
This oscillator circuit permits crystals to be electronically switched by logic commands. The circuit is best understood by initially ignoring all crystals. Fur...
Safe Oscillator For Watch Crystals – Circuit Schematic
Safe Oscillator For Watch Crystals
This circuit was developed to allow watch crystals to be used in an existing CMOS oscillator circuit that was to run from a 12V supply. The problem is that thes...
Pulse Generator And Signal TracerCircuit – Circuit Schematic
Pulse Generator And Signal TracerCircuit
This simple circuit generates narrow pulses at about 700-800Hz frequency. The pulses, containing harmonics up to the MHz region, can be injected into audio or r...