Oscillator Circuits
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Many function generators are based on a rectangular waveform generator that consists of a Schmitt.. -
Although ceramic resonators are a good choice for low-power, low-frequency clock sources (if you can stand their 30-ppm te.. -
CI capacitor in series with the crystal may be used to adjust the output frequency of the oscillator. The valu.. -
This simple circuit will oscillate with a wide range of crystals. Connect several different types of crystal holders in .. -
Using an EXAR XR2206, this generator will produce sine, square, and triangular waves from 10 Hz to 100 kHz. Ul is .. -
Using an Intersil ICL8038, this function generator generates frequencies from 1 Hz to over 80 kHz. Rl is the fine freque.. -
Laser-receiver circuits must bias their avalanche photo diodes (APD) to achieve optimal gain. Unfortunately, an APD.. -
This circuit uses a comparator as a Schmitt trigger (311H) and two active bandpass filters (LM318H). 3-kHz output .. -
Ql is a fixed oscillator operating at 455 kHz. Ul is a mixer, with its own internal oscillator running at 45.. -
This VFO circuit covers from 2.13 to 2.58 MHz and is intended for use with an external mixer to heterodyne the signal to desired.. -
The circuit"s frequency oscillation is /=2.8/ [Cix(/i + i2)]· Using the values shown, the output frequency can be varie.. -
By connecting this circuit to a logic device that"s under power, you can get an indication as to its status. If the circuit is .. -
Seven-V narrow pulses from 2 Hz to 50 kHz are produced by this circuit. CI through C4 provide frequency ranges i.. -
A simple pulse stretcher built with two sections of an op amp uses voltage follower U1A to drive Dl and C2. .. -
This simple and symmetrical free-running generator has a 50- output impedance, a pulse width of 100 ns.. -
This straightforward circuit uses an NE555 timer as an oscillator, a 7493 counter chain and a DAC0806 D/A conver.. -
Cascading two identical integrators will thus result in an overall phase shift of 180° and an amplification of unity (p.. -
This circuit produces a pure, - 80-dB THD sine wave with a frequency that is equal to the fc of IC3"s filter. A TT.. -
This compact LC oscillator offers a frequency range of about 1 kHz to almost 9 MHz and a low-distortion sine-wave ou.. -
This oscillator uses two transistors and operates the crystal in the fundamental mode. CT and C2 should.. -
This phase-shift oscillator is useful for audio oscillator applications. Adjust R7 for a good sine w.. -
Using a Quad NAND Gate, the TTL oscillator can use fundamental crystals between 1 and 10 MHz. The sine.. -
The NE555 is connected in the astable mode and uses only three timing components (RA, RB, and Ct. A 0.01-/aF bypass .. -
This circuit will generate a square wave of 2 Hz to 20 kHz. The circuit uses an op amp in a relaxation-oscil.. -
When this circuit is turned on, the natural offset of the devices serves as an automatic starting voltage. Assume that .. -
When the output is high, R3 and R4 are in parallel, and CI charges via Rl until the current in R2 equals that a.. -
This circuit adds 120 degrees of phase shift to a 50- or 60-Hz input, regardless of the frequency and amplitude fluctuations .. -
Adding a simple clamping circuit to a Harris 2620 high-speed op amp produces a glitch-free amplifier/ clipper. The op a.. -
This circuit takes audio from a receiver that might have a weak CW or tone signal and uses a PLL (Ul) to recover the wea.. -
This circuit can extract harmonics from various waveforms. With a sloped input waveform, the comparator produces a pulse.. -
Using two CA3450 op amps and a CA3227 transistor array, this circuit will accurately full-wave rectify sign.. -
This circuit combines the characteristics of an asynchronous S/R flip-flop and an edge-triggered JK flip-flop. It changes sta..
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
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.... -
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.... -
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.... -
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.... -
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,.... -
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.... -
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.... -
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.....
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