Category: 12. Electrical Waveforms

A second collection of the 555 RC oscillator to produce voltage multiplier circuits. This 555 Circuits Part 2 tutorial continues on from our first look at the operation of the 555 timer. This second tutorial looks at some practical uses and circuits we can build when using the 555 as an astable multivibrator. We recall from…

A collection of 555 circuits using the 555 Timer as an astable oscillator with different duty cycles. We have seen in the last few tutorials that the 555 Timer can be configured with externally connected components as multivibrators, oscillators and timers, with timing intervals ranging from a few microseconds to many hours. As the 555 timer is…

The 555 IC can be used to create a free running astable oscillator to continuously produce square wave pulses. The 555 Timer IC can be connected either in its Monostable mode thereby producing a precision timer of a fixed time duration, or in its Bistable mode to produce a flip-flop type switching action. But we can also…

The 555 Timer is a commonly used IC designed to produce a variety of output waveforms with the addition of an external RC network. We have seen that Multivibrators and CMOS Oscillators can be easily constructed from discrete components to produce relaxation oscillators for generating basic square wave output waveforms. But there are also dedicated…

Waveform Generators are Electronic circuits which can produce sinusoidal, square, triangular, and sawtooth waveforms using oscillators and pulsed circuits In the previous tutorials we have looked in detail at different types of waveform generators including the transistor multivibrator circuits which can be used as relaxation oscillators to produce either a square or rectangular wave at…

Astable Multivibrators are free running oscillators which oscillate between two states continually producing two square wave output waveforms. Regenerative switching circuits such as the Astable Multivibrator are the most commonly used type of relaxation oscillator because not only are they simple, reliable and ease of construction they also produce a constant square wave output waveform. Unlike the…

Bistable Multivibrators operate in a similar fashion to flip-flops producing one of two stable outputs which are the complement of each other The Bistable Multivibrator is another type of two state device similar to the Monostable Multivibrator we looked at in the previous tutorial but the difference this time is that BOTH states are stable. Bistable Multivibrators…

Multivibrators are Sequential regenerative circuits either synchronous or asynchronous and are used extensively in electronic timing applications. Multivibrators produce an output wave shape resembling that of a symmetrical or asymmetrical square wave and as such are the most commonly used of all the square wave generators. The monostable multivibrator belongs to a family of oscillators…

Electronic systems use an extremely wide variety of signal waveform types and shapes from sinusoidal to those created by waveform generators. In the Oscillators  tutorials we saw that an oscillator is an electronic circuit used to generate an ouput of continuous electrical waveforms. Generally this output signal is in the form of a sinusoid at some predetermined…