Resistors in series and parallel
How to calculate resistor in series. How to calculate resistor in parallel
Jan 062020
Jan 032020
The SBS – Silicon Bidirectional Switch is a symmetrical low power device used on trigger applications. The SBS is more versatile than the SIDAC.
It also has an additional terminal, which allows you to modify its trigger characteristics with small pulses of current.
Dec 202019
Air core inductor coil inductance calculation
There are some occasions when we have an air core inductor, and we don’t know what its value is. There is an easy way to obtain the air core inductor coil inductance if you have the external measurements of this component.
Dec 192019
UJT or Unijunction transistor
The UJT or Unijunction transistor is constituted by two polluted regions, with three external terminals: two bases and one emitter.
Dec 172019
The Electric Power Transformer usage – The Transformer Distribution System
Electric power transformers are static electrical machines that allows modification of the voltage and the current values, so they can take the appropriate one (value) to carry and distribute the electric energy.
Dec 142019
What is a 7-segment Display?
The 7-segment display, is a component used to represent numbers in many electronic devices.
Today, it is very common to find LCDs in much electronic equipment, but there are many that still use the 7-segment display for its simplicity.
Dec 142019
12 volt Power Supply using 7805
This 12 volt power supply circuit is simple and useful. Sometimes we need to get 12 VDC, but we only have 5 or 9 volts regulators (7805, 7809).
Dec 132019
What is a Darlington transistor?
The Darlington transistor is a special type of transistor with a high current gain. It consists of two internally bipolar transistors being connected in cascade
Dec 122019
What is an SCR?
The SCR (Silicon Controlled Rectifier) is a 4-layer semiconductor device that works as an almost ideal switch.
Dec 112019
What is a Voltage?
Potential difference or Voltage is a kind of force that push charges through a conductor. The larger the voltage, the larger the force
Dec 112019
What is Alternating Current?
The difference between an alternating current and a continuous current is that the continuous current flows only on one direction. The alternating current circulates first in one direction and then on the opposite one, repeating this process continuously.
Dec 092019
Light-Emitting diode connected to 120/240 VAC
This circuit shows one or two Light-Emitting Diodes connected to 120/240 VAC. The reduction of the AC input is achieved using a capacitor and a resistor