Electronics Area – Electrical and Electronics Tutorials and Circuits
Welcome to Electronics Area
Electrical and Electronics Tutorials and Circuits
Digital Electronics | Semiconductors |
Operational Amplifiers | Circuit diagrams & Projects |
Transformers | Resistors |
Capacitors | Inductors |
Electronic Filters | Power Supplies |
Recent posts
Electronic Filters
Electronic Filters – Filters are networks that allow or block the passage of a specific group of frequencies (frequency band)
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Scientific Notation – Engineering Notation
Scientific notation and engineering notation allow the representation of very large or very small quantities, very common in engineering and technical fields
Perfect Square Wave with 555 – Formula – Examples
Perfect Square Wave with 555 – A simple circuit that uses the 555 timer to produce a stable perfect square wave. Formula, examples.
Audio Splitter Circuit Diagram – 1 Input – 4 Outputs
This circuit has a single input and 4 independent outputs, each amplified with an operational amplifier.
Light sensitive alarm using LDR
This alarm activates when the illumination level changes from almost total darkness to a moderately high illumination level. When this happens the alarm is locked and the alarm signal, be it a light or a sound, remains active.
Off-Delay Timer Circuit using 555 IC
This off-delay timer is ideal when we want to schedule the automatic shutdown of a device after a predetermined time, using the well known 555 IC
Metronome circuit with adjustable BPM
This metronome circuit with adjustable BPM, allows those persons who study or are music fans, to keep the timing, quite accurately for a long period of time.
Variable Dummy Load for Power Supply Testing
Variable Dummy Load for Power Supply Testing. How to test a voltage source to know if it is good or not?. What is the percentage regulation?.
Why is the core of a transformer laminated?
Why is the core of a transformer laminated? Why it is not possible to use a solid iron core instead of core-laminated? What is Eddy or Foucault’s currents?
High current pulse generator
High current pulse generator using a 555 timer and a voltage regulator. This circuit can be useful for DC Motor control. Light control, etc.
Diode Tester Circuit using 741
This diode tester circuit checks, if the diode is in good condition and also determines its polarity. To accomplish our goal, we use an 741 operational amplifier (IC1) configured as an oscillator.
What is the Difference between Electricity and Electronics?
The difference between electricity and electronics or the difference of an electric circuit and an electronic circuit, is that in the electronics circuit, a control is exercised over the flow of the electric current.
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