tech2play

      LEDs can be powered by continuous current or by brief pulses of current. When operated continously, the current can be varied to c...

      Semiconductor Light Source When bombarded by light, heat, electrons and other form of energy, most semiconductor crystals will em...

    Resistor and capacitor are the key ingredients of many electronic circuit. Here are some reason why: Power Supply Filter A capac...

              There are many kinds of capacitors, but they all do the same thing: store electrons . The simplest capacitor is two conducto...

                    Resistors come in dozens of size and shapes but they all do the same thing: Limit current (or resist). More abou that...

          Electronics is the study and application of electrons, their behaviour and their effects. The simplest application for electron...

              When the base of NPN transistor is grounded (0 volts), no current flows from the emitter to the collector (the transistor is...

        Many different kinds of diodes are available. Here are some of the major types: Small Signal Small signal diodes are used to ...