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capacitor Whats wrong with this Phase Shift Oscillator
A phase shift oscillator, using a CE Amplifier. I have a Vc of approximately 6V, gain of approximately 40(>29, as required). I aim for an oscillation frequency of 1. 5 kHz.
rfid How to design an Oscillator Circuit (500 MHz range) with no Op amps
An Oscillator circuit which can produce a good sine wave with a frequency of at least 500 Mhz. This is for RFID applications. I have tried to use an class E oscillator, but i cant seem to get the design right. Can anyone help me out
op amp Op Amp based Colpitts oscillator
An op-amp based Colpitts oscillator in multisim. When I press run button it shows- "timestep too smaall error". I`ve googled and tried everything but it still shows the error. Not sure where you got that design, but as drawn your C-L-C pi circuit is grounded (by an ideal ground, for purposes of simulation) at both ends, so it willhave absolutely...
oscillation Oscillator circuit
The first thing I need to know how C1 is related to resonance frequency f of the circuit. It seems like I can choose a frequency and I automatically get a needed value for C1. I have a lot of doubts I don`t know if the circuit constitutes a Colpitts or Hartley oscillator and if I can use the known formulas and then how I would apply it my circuit.
avr Programming an ATmega1284p with Arduino IDE and internal RC Oscillator
Program an ATmega1284p with my AVR Dragon and the Arduino IDE. So far I have installed mighty1284p, after writing my sketch. I compile it using the Arduino IDE and then cd into the (temporary) directory the sketch is build in. It contains the. hex file, as seems logic. /* Blink Turns on an LED on for one second, then offfor one second,...
oscillator VCO sawtooth and duty cycle
The circuit generates square and triangle wave. I wonder if I can add a couple of diodes and a potentiometer to be able to skew between triangle-ramp/saw and change the duty cycle of the square wave Is it that simple
Is this a certain kind of oscillator
Simple variable frequency oscillator
150-Hz Oscillator/Counter Circuit. Simplified Schematic Diagram
500-kHz fm oscillator circuit simplified schematic digram
150-Hz Oscillator/Counter Circuitt Card Schematic Diagram (Assembly A21)
1-kHz/10-kHz oscillator circuit card schematic diagram (assembly A3)
500-kHz FM Oscillator Circuit Card Schematic Diagram (Assembly A4)
3.975-5.925 mHz oscillator circuit card schematic diagram (assembly A10)
68-MHz oscillator circuit card schrematic diagram (assembly A12)
Beat Frequency Oscillator Detector
Early schematic of a Colpitts circuit, using a vacuum tube, redrawn from the patent publication. A Colpitts oscillator, invented in 1920 by American engineer Edwin H. Colpitts, is one of a number of designs for electron..
1Hz Oscillator circuit
This plugin uses a quartz oscillator which uses a crystal (X1), amongst other components to give a 32, 768Hz (32, 768=215) output. This is input to a 4020 14-Stage Ripple Counter, which divides this signal down by 214 to a 2Hz signal. This 2Hz signal is then halved in frequency using a JK flip-flop ( 4027 ) configured as a toggle flip-flop. The...
Wien bridge oscillator
In this version of the oscillator, Rb is a small incandescent lamp. Usually R1 = R2 = R and C1 = C2 = C. In normal operation, Rb self heats to the point where its resistance is Rf/2. A Wien bridge oscillator is a type of electronic oscillator that generates sine waves. It can generate a large range of frequencies. The oscillator is based on a...
555 Sawtooth Oscillator
This is the 555 Sawtooth Oscillator circuit diagram with the detailed explanation of its working principles. The electronic circuit simulator helps you to design the 555 Sawtooth Oscillator circuit and to simulate it online for better understanding..
1701 Oscillator start problem
Wien Bridge Oscillator Circuit
This is a circuit that is known as wien bridge oscillator circuit. The circuit has positive and negative feedback loop. This circuit is work with control by op amp. This is the figure of the circuit. The circuit oscillates at a frequency determined by the RC time constant at frequency and produces a sinusoidal waveform at the output voltage Vout.
Microphone Circuit Test Oscillator
This circuit would be mounted in a small plastic or preferably metal box, with a 9V battery, level control, a male XLR connector (same as on a microphone) and a switch. Current drain is low, since the circuit only uses one dual op amp. There is no need for a high quality device, and a 1458 is all that is needed. The first stage is the oscillator i
Common Collector Colpitts Oscillator
Design a Colpitts Oscillator in a common collector configuration using a single BJT. Provide base current to get the transistor operating properly, and you can do this using a potential divider (between Vcc and gnd): use resistor values as high as possible (bearing in mind the loading effect of the base current) in order not to load the LC...
The Hartley Oscillator is characterised by an LC circuit in its collector. The base of the transistor is held steady and a small amount of signal is taken from a tapping on the inductor and fed to the emitter to keep the transistor in oscillation.
Metal Detector Circuit Schematic using Beat Frequency Oscillator (BFO)
The simplest method of detecting metal is by beat frequency oscillator. The circuit basically consists of two balanced oscillator. One acts as the detector element, the other provides the reference signal. This oscillator frequency reference is set to fix value, whilst the detector oscillator varies depending on the metal presence. The reference o
Sine wave oscillator
This scheme is sine wave oscillator, with frequency from 5 Hertz up to 5 KHZ. Capasitor C1, C2, C3 altogether valuable 100pF, yielded frequency 5 KHZ. To get other frequency magnitude of we ready to change value at C1, C2 and C3, like under this.
Square Wave Oscillator
This scheme applies amplifier OpAmp LM301 to awaken square wave that is simple. LM301 applies power allowance 3 V - 36 V, with highest frequency 325 kHzs. Oscillation frequency given in equation. where f is Hertz, R in Ohm, C in Farad. Active Pressure C1 have to be more a few 2/3 of power allowance tensions. At C1 stands to throw away charge. Input
Very Simple Oscillator
This is the first oscillator I ever built. I remember looking at books and magazines, schematics on the net, etc. They wereall either colpitt or hartley oscillators. Generally speaking while they`re simple enough, they require the use of properinductors which is something that usually you don`t have when you`re just starting out or you can`t measu
Wein Bridge Oscillator using ic 741 op amp
Wien bridge oscillator is an audio frequency sine wave oscillator of high stability and simplicity. Before that let us see what is oscillator An oscillator is a circuit that produces periodic electric signals such as sine wave or square wave. The application of oscillator includes sine wave generator, local oscillator for synchronous receivers et
RC Phase Shift Oscillator Using Transistor (BJT): Circuit & Working
In this section we would like to introduce you a transistor oscillator circuit, called as RC Phase shift Oscillator. First of all we need to know what is an oscillator. An oscillator is an electronic circuit which acts as a sine wave generator. The only requirement of an oscillator is a DC power supply source. It is widely used in frequency variab
Astable Oscillator Circuits
Colpitts Oscillator Circuits
Crystal Oscillator Circuits
Hartley Oscillator Circuits
RF Oscillator Circuits
Sine Wave Oscillator Circuits
Square Wave Oscillator Circuits
Volt Controlled Oscillator Circuits
Wein Bridge Oscillator Circuits
Pierce Oscillator Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial