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Code-practice-oscillator – Circuit Schematic
Code-practice-oscillator
Capacitor C 1 charges through resistor Rl, and when the gate level established by potentiometer R2 is high enough, the SCR is triggered. Current flows throug...
Cmos-oscillator – Circuit Schematic
Cmos-oscillator
The common clock oscillator in Fig. 68-19A has two small problems: It might not, in fact, oscillate if the transition regions of its two gates differ. If it ...
Xor-gate-oscillator – Circuit Schematic
Xor-gate-oscillator
An exclusive-OR gate, IClD, turns a simple CMOS oscillator into an FSK generator. When the data input increases, IClD inverts, and negative feedback through ...
Cmos-oscillator – Circuit Schematic
Cmos-oscillator
This circuit is guaranteed to oscillate at a frequency of about 2.2/(R1 x C) ifR2 is greater than R 1. ...
Wien-bridge-oscillator – Circuit Schematic
Wien-bridge-oscillator
LEDs function as both pilot lamps and as an AGC (automatic gain control) ...
Low-frequency-oscillator – Circuit Schematic
Low-frequency-oscillator
This simple rc oscillator uses a medium-speed comparator with hysteresis and feedback through Rl and Cl as timing elements. The frequency of oscillation is, at ...
Audio-oscillator – Circuit Schematic
Audio-oscillator
The circuit"s frequency of oscillation is/= 2.8/ [C1 x (R1 + R2)]. Using the values shown, the output frequency can be varied from 60 Hz to 20 kHz by rotatin...
Last-cycle-completing-gated-oscillator – Circuit Schematic
Last-cycle-completing-gated-oscillator
Regenerative feedback at C enables the oscillator to complete its timing cycle, rather than immediately shutting it off. ...
High-frequency-oscillator – Circuit Schematic
High-frequency-oscillator
Intended primarily as a building block for a QRI"transmitter, this 20-MHz oscillator delivered a clean 6-V, ...
Half-duty-cycle-oscillator – Circuit Schematic
Half-duty-cycle-oscillator
Frequency of oscillation depends on the Rl/Cl time constant and allows frequency adjustment ...
Hcu-hct-based-oscillator – Circuit Schematic
Hcu-hct-based-oscillator
When frequency stability is not of prime importance, a simple, yet reliable, digital clock oscillator can be made with the aid of relatively few components. Hi...
Wide-range-oscillator – Circuit Schematic
Wide-range-oscillator
The gain control allows the oscillator to maintain essentially constant output over its range. ...
Programmable-frequency-sine-wave-oscillator – Circuit Schematic
Programmable-frequency-sine-wave-oscillator
A Wien-bridge oscillator can be made Vllriable by using two frequency-determining parts that are varied simultaneously at high tracking accuracy. High-quality ...
Hc-based-oscillators – Circuit Schematic
Hc-based-oscillators
Two inverters, one resistor, and one capacitor are all that is required to make a HC(T)-based oscillator that gives reliable operation up to about 10 MHz. Th...
Rlc-oscillator – Circuit Schematic
Rlc-oscillator
A positive transient, such as the power switch closing, charges r through L to a voltage above the supply voltage, if Q is sufficient. When the current rever...
Variable-duty-cycle-oscillator – Circuit Schematic
Variable-duty-cycle-oscillator
In a basic astable timer, configuration timing periods 11 and 12 are not controlled independently. The lack of control makes it difficult to maintain a constan...
Discrete-sequence-oscillator – Circuit Schematic
Discrete-sequence-oscillator
The swept-frequency oscillator offers an inexpensive source of discrete frequencies for use in testing digital circuits. In this configuration, the circuit gen...
Saw-oscillator-modulator – Circuit Schematic
Saw-oscillator-modulator
Adding a diode, a resistor, and a capacitor to the SAW (surface-acoustic-wave) oscillator allows you to use the oscillator in FSK (frequency-shift-keying) appl...
50Mhz-trigger – Circuit Schematic
50Mhz-trigger
This has a stable trigger 100 m V sensitivity at 50 MHz. The FETs comprise a simple high-speed buffer and the LT1016 compares the buffer"s output to the pote...
Light-sensitive-audio-oscillator – Circuit Schematic
Light-sensitive-audio-oscillator
This circuit"s frequency of oscillation increases directly with light intensity. The greater the light intensity, the higher the frequency of the oscillator. T...