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IC 4049 Square wave oscillator generator – Circuit Schematic
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.....
Crystal tester circuits using BC107 – Circuit Schematic
Crystal tester circuits using BC107
You cannot use a multimeter to check a crystal. You should have a this circuit, because it can check a crystal 100Khz to 900Mhz, easily to make and cheap.The.....
Crystal oscillator using TTL – Circuit Schematic
Crystal oscillator using TTL
I like the circuit, because it is good and enjoy. It just the signal status ""1"" and ""0"" only. And frequency generator is.....
Hartley Oscillator Calculator – Circuit Schematic
Hartley Oscillator Calculator
Q is the transistor, L1, L2, C resonant circuit formed, L2 double as feedback network, through the coupling capacitor Cb will be sent to feedback voltage transi...
Colpitts Oscillator Calculator – Circuit Schematic
Colpitts Oscillator Calculator
Colpitts oscillator circuit is shown in Figure 1, Q is the transistor. The Colpitts and Hartley oscillator circuit are similar, except the inductor, capacitor e...
oscillator circuit with opamp and zener diode – Circuit Schematic
oscillator circuit with opamp and zener diode
Looks like a schmitt trigger oscillator. By the way the resistors and capacitor are used it is probably a saw-tooth wave generator with R2 & R3 determining the ...
High Power Square Wave Generator (0-500V 25A) – Circuit Schematic
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...
100Khz sine oscillator – Circuit Schematic
100Khz sine oscillator
All you really need is a decent opamp, three resistors, three caps. Make one of the resistors adjustable, otherwise all components same value. It`s called a pha...
reference design digitally controlled sine wave generator – Circuit Schematic
reference design digitally controlled sine wave generator
The circuit of Figure 1 produces an accurate variable-frequency sine wave for use as a general-purpose reference signal. It includes an 8th-order elliptic, swit...
design a crystal oscillator to match your application – Circuit Schematic
design a crystal oscillator to match your application
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Very Low Power 32kHz Oscillator – Circuit Schematic
Very Low Power 32kHz Oscillator
The 32-kHz low-power clock oscillator offers numerous advantages over conventional oscillator circuits based on a CMOS inverter. Such inverter circuits present ...
Thrifty 2Hz Clock – Circuit Schematic
Thrifty 2Hz Clock
CMOS circuits are known for their low current consumption. This is particularly important for battery-powered circuits. Unfortunately, oscillators often r.....
Switchable Output Crystal Oscillator – Circuit Schematic
Switchable Output Crystal Oscillator
This oscillator circuit permits crystals to be electronically switched by logic commands. The circuit is best understood by initially ignoring all crystal.....
Simple Oscillator / Pipe Locator – Circuit Schematic
Simple Oscillator / Pipe Locator
Sometimes the need arises to construct a really simple oscillator. This could hardly be simpler than the circuit shown here, which uses just three compone.....
Simple Function Generator – Circuit Schematic
Simple Function Generator
Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit presented here makes.....
Irregular Flasher – Circuit Schematic
Irregular Flasher
Two multivibrators with different frequencies can be built using the NAND gates of a 4011 IC. If the output of IC1. B is positive with respect to IC1. C, LED D1...
Harmonic Generator With Single Opamp – Circuit Schematic
Harmonic Generator With Single Opamp
Quartz crystals have the property that their amplitude/phase characteristic repeats itself at frequencies that are an uneven multiple of the fundamental f.....
Experimental Pendulum Clock – Circuit Schematic
Experimental Pendulum Clock
Using this design, you can construct an electromagnetically impulsed pendulum clock with a 1-second beat. On the prototype, the pendulum rod is 115cm long with ...
CMOS Crystal Frequency Multiplier – Circuit Schematic
CMOS Crystal Frequency Multiplier
Crystals usually operate at fundamental frequencies up to about 15 MHz. Whenever higher frequencies are required a frequency multiplier is placed after th.....
Building A Synchronous Clock – Circuit Schematic
Building A Synchronous Clock
The quartz clocks which have dominated time-keeping for the past 20 years or so have one problem: their errors, although slight, are cumulative. After run.....