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Voltage controlled ramp generator – Circuit Schematic
Voltage controlled ramp generator
The current source formed by Ql in conjunction with capacitor Cl set the duration time of the ramp. As the positive dc voltage at the gate is changed, the peak ...
Ramp generator – Circuit Schematic
Ramp generator
The 566 can be wired as a positive or negative ramp generator. In the positive ramp generator, the external transistor driven by the Pin 3 output rapidly discha...
Code practice oscillator – Circuit Schematic
Code practice oscillator
The inexpensive 7404 hex-inverter has enough amplification to handle a wide range of transducers. Closing the key completes the battery circuit and applies four...
temperature stable oscillator – Circuit Schematic
temperature stable oscillator
The Colpitis sinusoidal oscillator provides stable output amplitude and frequency from 0°F to +150°F. In addition, output amplitude is large and harmonic ...
Oscillator IIV – Circuit Schematic
Oscillator IIV
When the oscillator is connected to a dc circuit then connect a dc blocking capacitor in series with the potentiometer's wiper arm. ...
Digital oscillator – Circuit Schematic
Digital oscillator
This very simple, low cost oscillator, is built with two CMOS buffer inverters, two capacitors and a variable resistance. The circuit can work with voltages ran...
Tunable frequency oscillators – Circuit Schematic
Tunable frequency oscillators
The variable oscillator circuit includes active elements for discharging the timing capacitor CT shown in Fig. 66-7A....
Four-decade variable oscillator – Circuit Schematic
Four-decade variable oscillator
The circuit consists of a variable current source that charges a capacitor, which is rapidly discharged by a Schmitt-trigger comparator. The sawtooth waveform t...
1 khz oscillator – Circuit Schematic
1 khz oscillator
This circuit operates as an oscillator and a timer. The 2N6028 is normally on due to excess holding current through the 100 k resistor. When the switch is momen...
Adjustable oscillator – Circuit Schematic
Adjustable oscillator
In this circuit, there are two feedback paths around an op-amp. One is positive dc feedback which forms a Schmitt trigger. The other is a CR timing network. Ima...
Triangle-square wave oscillator – Circuit Schematic
Triangle-square wave oscillator
This circuit generates simultaneously, a triangle and a square waveform. It is self starting and has no latch up problems. IC1 is an integrator with a slew rate...
Big loop oscillator – Circuit Schematic
Big loop oscillator
L1 is a loop of 10 to 20 turns of insulated wire with a diameter anywhere between 4" to 4'. Oscillator frequency (7 to 30 MHz) shifts substantially when a perso...
Oscillator interfaces data for tv – Circuit Schematic
Oscillator interfaces data for tv
Three gates of a 74LS04 form the oscillator circuit. Capacitor Cl allows fine-frequency adjustment to a specific television channel and helps stabilize the circ...
Unijunction metronome – Circuit Schematic
Unijunction metronome
The UJT-oscillator frequency is determined by the 100 µ¥ capacitor and the effective resistance of the 22 and 470 resistors and the potentiometer. Rate ...
Metronome – Circuit Schematic
Metronome
This simple oscillator uses a 2N4871 UJT to give pulses from 0.2 to about 20 Hz. ...
Simple metronome – Circuit Schematic
Simple metronome
The UJT oscillator output is applied to a general purpose npn transistor which drives the speaker. ...
Precise wave generator – Circuit Schematic
Precise wave generator
The positive and negative peak amplitude is controllable to an accuracy of about ± 0.01 V by a dc input. Also, the output frequency and symmetry are easily a...
Function generator – Circuit Schematic
Function generator
The circuit has both square-wave and triangle-wave output. The left section is similar in function to a comparator circuit that uses positive feedback for hyste...
Waveform generator II – Circuit Schematic
Waveform generator II
The circuit uses a CA3060 triple OTA (two units serve as switched current generators controlled by a third amplifier). A CA3160 BiMOS op amp serves as a voltage...
Waveform generator – Circuit Schematic
Waveform generator
The circuit is designed around the Intersil 8038CC. Frequency range is approximately 20 Hz to 20 kHz—a tuning range of 1000:1 with a single control. The ...