Hacks of Electronics
Have you thought about who turns on and off those street lights on the road? Turning on and off those street lights may be a boring task. We can make this process automatic by a simple automatic street light circuit. Also, you can automate your home lighting, lights in the garden, and other outside places […]
In this project, we will use the MQ2 Gas sensor circuit to detect Methane, Butane, LPG, Smoke which is released into the environment at the time of the gas leak. MQ2 Gas sensor circuit diagram is as shown in the figure. MQ2 gas sensor can sense butane, LPG, Smoke, Alcohol, Propane, Hydrogen, Methane and Carbon […]
The musical 16 Tune musical doorbell circuit diagram described in this article produces a different musical tune each time the bell push button is pressed. The bell produces a total of 16 tunes which follows successively. The circuit is based on a CIC4822 LSI read only memory chip which contains a complete marked ROM, envelop, […]
A voltage comparator is a circuit which compares the voltages at its input terminals and switches the output to either high or low depending upon which input was high. making a voltage comparator using transistors and other components is quite difficult and makes no sense because we have OPAMPs. We can use 741, LM311, LM324, […]
Voltage to current converter is mostly used to transmit signals over a long distance to a control circuit. The most important reason behind it is that while traveling a long distance due to the internal resistance of the wire the voltage gets reduces. if there is a very small signal then it may get lost. […]
A current to voltage converter circuit produces output voltage with respect to input current. An I to V converter is used to convert varying current into equivalent output voltage. This circuit is very much useful when the measuring instrument can measure only voltages not the current and we want to measure the output current. The […]
Gunn diode operates on the Gunn effect which is named after its inventor J.B. Gunn. He discovered the periodic variation of current in a GaAs (gallium arsenide) rod in 1963. The microwave device that operates on the principle of transfer of electrons is called as Gunn diode. This is one of the diodes used as […]
The VI characteristics of IGBT is as shown in Figure. In the forward direction, they are similar to those of bipolar transistors. The only difference here is that the controlling parameter is the gate to source voltage Vgs and the parameter being controlled is the drain current. The working principle of IGBT is based on […]
An insulated-gate bipolar transistor (IGBT) is a three-terminal semiconductor device it is a hybrid of MOSFET and BJT for high efficiency and fast switching. The power BJT has the advantage of low on state power dissipation but it cannot be switched at faster rates due to longer turn-off time, whereas MOSFETs have a very high […]
A Triac is a bidirectional device it allows current to flow in both the directions. here we will discuss Triac working and vi characteristics, In the SCR family, after the SCR, Triac is the most widely used device for power control. Triac is a three-terminal device, with the terminals named as main terminals 1, 2 […]