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Data Bus Circuits
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RF Converter Circuits
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voltage to frequency
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Video Wall circuits
TV Video Circuits
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8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
DIY HV Variable Cap
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Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
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4 Band Resistor
5 Band resistor
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Square Wave Oscillator Circuits
Square Wave Oscillator Circuits
Whats a good square wave generator
How to connect a crystal oscillator to generate Square wave
If you want a 1MHz square wave, I would suggest using a higher frequency crystal and dividing it down, for two reasons: (1) 4MHz crystals are apt to be cheaper and easier to find than 1MHz ones; (2) Getting a 50. 0000% duty cycle from a crystal is a bit tricky; by contrast, if one converts the signal from a crystal into a pulse wave (just pass...
3 Phase square wave generator using 555 and 4017
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
IC square wave generator circuit
triangle square wave generator 2
square wave generator
an electronic project to build a multivibator as a basic first test instrument - ideal for trouble shooting radio repairs. Includes a how to use guide. An excellent beginner project..
100khz square wave generator
The musical signal`s form does never resemble a square wave. The frequency range perceived by an average adult hardly goes above 17KHz. Hence I do not give a dime to those heated discussions whether it`s appropriate to test audio amplifiers using a 100KHz meander signal. But being an electronic engineer in my heart as well as by education and pass
discussing output stage of square wave
What about the 10K resistors at the bases of the transistors, and the 1K resistors at the collectors. Keep those with theTransistors when I move them, orget rid of them If the 10K resistors are not included the transistors will blow-off, without the 1K collector resistors the mosfets will not work. so all of them are required. we are just...
ua 741 square wave generator
A square wave generator with IC UA741 range shown here. The circuit uses positive feedback to the Schmitt trigger action and negative feedback to measure the time of the waveform. Let us assume that the output is high and the capacitor C1 is fully discharged. C1 now begins to charge through R2 and C1 R1. When tension rises above the junction of...
modifying square wave inverters to sine wave equivalents
self powered sine to square wave converter
This circuit is intended to provide good square waves converting a sine wave picked-up from an existing generator. Its major feature consists in the fact that no power-source is needed: thus it can be simply connected between a sine wave generator and the device under test..
Square Wave Generator using Op-Amp
The non-sinusoidal waveform generators are also called relaxation oscillators. The op-amp relaxation oscillator shown in figure is a square wave generator. In general, square waves are relatively easy to produce. Like the UJT relaxation oscillator, the circuit`s frequency of oscillation is dependent on the charge and discharge of a capacitor C th
Square wave generator using uA 741
Square wave generator using uA741. Circuit diagram, theory and working principle..
A 75 W Tv Power Supply Operating In Quasi-square Wave Resonant Mode Using Ncp1207 Controller
This Application Note demonstrates a simple 8-direction digital compass application using Zilog`s Z8 Encore! ® MCU and an external sensor- compass hardware. Communication ports are pro- vided for the digital compass to receive commands and send status on the I 2 C bus as well as the UART from/to an external host. According to the command received
Self-powered Sine to Square wave Converters
This circuit is intended to provide good square waves converting a sine wave picked-up from an existing generator. Its major feature consists in the fact that no power-source is needed: thus it can be simply connected between a sine wave generator and the device under test. The input sine wave feeds a voltage doubler formed by C1, C2, D1 & D2 that
Triangle / Squarewave Generators
A simple triangle/squarewave generator using a common 1458 dual op-amp that can be used from very low frequencies to about 10 Khz. The time interval for one half cycle is about R*C and the outputs will supply about 10 milliamps of current. Triangle amplitude can be altered by adjusting the 47K resistor, and waveform offset can be removed b
555 square wave generator
Hello, Please help me, I have designed a very basic square wave generator to run a speedometer circuit board which is providing output to control a..
High Power Square Wave Generator (0-500V 25A)
V1 and V2 are set to 5V in the simulation, but could also be 10V to eliminate the need for a second supply ” or, if you can find logic level FETs at that high a voltage, then you can reduce the 10 volt supply to 5 volts. Assuming that the switching frequency is low enough (100 Hz max), why not use SCRs or a similar class of devices I believe...
How to amplify a square wave cheaply
I am driving a piezo disk at 100 Hz (or less) and am limited by the output of my signal generator to 10 V. I wish to amplify that to 50 or even 100 Volts. How to do ..
100W Square wave Inverter by CD4047 LM3582SC10612N3055
IC 4049 Square wave oscillator generator
We can bring the inverter CMOS digital IC is CD4049 Hex Inverting Buffer IC, to design the Square wave oscillator generator..
SQUARE WAVE GENERATOR EMBEDDED C
One requirement in a wide range of applications is a spontaneous source of some continuous signal, having a regular and definable wave shape. One of the most important of these is a square wave. The circuit to the right uses a comparator with both positive and negative feedback to control its output voltage. Because the negative feedback path...
square wave 2 sine wave convertion
I would like to convert a TTL square wave into sine wave. The frequency range of the square wave is: 4Hz-60Hz (yes its those evil low frequency experiments that I plant to take over the world with One approach is to filter the square wave with a high order filter. But if the frequency varies then you need a tracking filter whose center frequency v
555 Variable Frequency Square Wave Generator
555 Variable Frequency Square Wave Generator This simple 555 Variable Frequency Square Wave Generator produces a variable frequency output of..
Building a square wave generator
Hope someone can help me. I want to build a square generator. I want it to have control for frequency variable 1hz to 200hz, a switchable voltage..
Simple Square Wave Generator with 7400
This is a very simple square wave generator circuit built with IC 74LS00 that can generate square signals with frequencies between 20 Hz and 1 MHz. Its stability is good enough for most applications. The output freq. is dimensioned through the RC components and time delay of the 3 inverter gates. The time delay of a logic gate is the elapsed time
555 based square wave generator
Assembly of the F&DARC Square Wave Generator/Bridge
This project combines several features in one compact unit. The fundamental driver consists of a NE 555 square wave generator. During development, consideration and a certain amount of experimentation was given to the construction of a square wave unit using discrete components. Investigation showed however that the geometry of the square wave pro
square wave oscillator circuit
Using two gates from a CMOS 4011 NAND chip, a simple Squarewave oscillator can br made. Alternatively a CMOS 4001 chip can also be used, or a TTL equivalent. In this circuit the mark space ratio can also be independently controlled by varying the value of the resistors. The rise and fall times of the output pulses depend on the operating voltage o
555 Square Wave Generator
Square wave oscillator
Well, I try to follow an instructable for quiet a while now, but I still couldn`t understand its schematic.. its not that I don`t know what the symbo..
Astable Oscillator Circuits
Colpitts Oscillator Circuits
Crystal Oscillator Circuits
Hartley Oscillator Circuits
RF Oscillator Circuits
Sine 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...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity