The ultrasonic detector or receiver circuit will be able to detect all those high frequency sounds that are beyond the hearing capacity of humans. The units will be able to hear all those frequencies that are perhaps only audible to some animals like dogs, cats and bats. The ultrasonic receiver circuit can be used for […]
Newly Updated Circuit Projects:
2 Simple Milliohm Meter Circuits [Measure Low Resistances below 1 Ohm with these Circuits]
The low resistance measuring circuit I have explained below can be used for measuring all milliohm resistances below 1 ohm with extreme accuracy. The resistance to be measured can be as low as 0.01 ohm or 10 milliohm. The output of the circuit converts the resistance value to exactly equivalent volts, which means the output […]
Make this Plasma Ball Circuit
In this post I have explained how to build a simple plasma globe or a plasma ball circuit using very oridinary parts such as an automotive ignition coil, a triac, diac, and a few other passive elements. A plasma ball is a decorative display device in which a very high voltage in the order of […]
Boolean Algebra in Logic Circuits Made Easy
Boolean algebra is a assortment of basic mathematical techniques applied to signify and communicate the logical procedures that happen within a digital circuit. Difference Between Boolean Algebra and Common Algebra Boolean algebra is much like common algebra. The main distinction is that in contrast to common algebra, in which we have parameters that can be […]
Tuned Radio Frequency (TRF) Receiver Circuits
A tuned radio frequency receiver (or TRF receiver) is a form of radio receiver which is made using a number of tuned radio frequency (RF) amplifier stages accompanied by a detector (demodulator) circuit to draw out the audio signal, along with an audio frequency amplifier for amplifying the extracted audio into a loudspeaker. This kind […]
How RCCB Works [with Circuit Diagram]
A Residual Current Circuit Breaker (RCCB) or a ground fault circuit interrupter (GFCI), is a form of circuit breaker which will shut down mains AC power as soon as it detects an discrepancy between the incoming current and the outgoing current, through it. The primary objective of an RCCB device is to cut-off main AC […]




