12-0-12 transformer ac to dc What is a 12-0-12 transformer? A 12-0-12 transformer is a 12v step-down transformer that has 3 terminals from secondary. This type of transformer is also called a center tap transformer. Input is 220 to 230v and output is 12v-0-12v. The middle wire terminal is considered as 0v and Each side …
single push button on/off circuit one push button start stop relay circuit Press the switch- ON Again press the switch- OFF There are the following two circuit diagrams of ON-OFF using a single pushbutton switch, Only one Pushbutton switch is used for both ON and OFF. Once Load is ON then remain in this …
Single push button ON OFF latching switch circuit Read More »
How to make 3.3v 1A dc supply from 4.5v, 5v, 6v or greater than these value. LCD/LED tv no picture problem/white screen Some days ago my LCD tv was not working properly, only the sound was ok and picture was not displaying. I checked and I was not getting any fault. I again 2 and …
LCD/LED TV white screen problem and how to make 3.3v without AMS1117 Read More »
The technique of directly attaching electronic components to the surface of a printed circuit board is referred to as SMT. As the leads are placed into the PCB using the through-hole approach, a problem will arise if the leads are not properly fitted, slowing down the production pace. All electrical items require more functionality …
op-amp based Over current /short circuit protection circuit This is a short circuit and Overload protection circuit using op-amp LM358. This protection circuit can be used in any DC load to protect Overload and short-circuit. This is a very simple and also easy circuit for DC Load. When Load is increased and cross the required …
Overload and short circuit protection using LM358 Read More »
Sample and hold circuit Definition and Introduction Sample and hold circuit is an electronic circuit which makes the samples of input voltage signals and holds these samples signal for some very small time duration. Sample and hold circuit is basically is an analog to digital converter circuit. Input voltage signals to be sampled and hold …
single push button ON OFF relay latching switch one push button start stop relay This is ON OFF switch circuit by using the single pushbutton switch. In this circuit used 2 relays. Make the connection as the given diagram. When you give the supply to the connection, the output load is in OFF. Once press the …
Single push button relay ON-OFF latching circuit Read More »
Infrared proximity sensor circuit obstacle detector circuit When an object comes near and in front of the IR sensor then the output of the circuit becomes HIGH. But when the object will keep far away from the IR sensor, the output will LOW automatically. This is the function of IR proximity or obstacle sensor. infrared …
The following electronic circuit diagrams very Simple, useful, and can be made by any beginner. LED flasher circuit using transistor Battery level indicator circuit diagram Mini Fm transmitter circuit up to 50M range contactless electric line tester detect the line when the sensor wire touched over the cover of wire overheat or temperature sensor Adjust …
Best 10 electronic circuit diagram for beginners Read More »
Smart relay switch for DC when a short circuit occurs, Automatic Switch OFF the supply and an indicator will also start to glow. This is just like an MCB used for AC. This switch is used for DC supply. This automatic Cut relay switch is very useful for damage protection to the circuit from …
Comparator A comparator is a circuit that compares two input voltages or currents and gives output High or Low as per input signal. The Output is a digital form according to the input signal compared with the reference. Basically a comparator is used in electronics to compare the two Analog input signals given on both …
Ohm Law What is ohm’s law In the electrical field, Ohm’s law is a very important topic. This law is asked in almost all interviews and as basic fundamentals of electrical engineering for all who related to electrical engineering. This is a very important fundamental law that describes the Relation between Current, Voltage, and Resistance. …
Operational Amplifier (op-amp) An operational amplifier or op-amp is basically a multistage, very high gain amplifier having very high input impedance (typically a few Mega ohms) and low output impedance(Less than 100 ohms) and has the capability to amplifying signals of frequency ranging from zero HZ to 1MZ. Opamp is basically a multistage, direct-coupled, negative …
how to make darkness circuit (4 circuits) 1. LDR Darkness circuit diagram using 555 Components capacitor 1000uf 25v -1 10uf 25v -1 0.01 uf -1 Resistor 1KΩ – 3 LDR – 1 Bridge Rectifier -1 or 1N 4007 diode – 4 pc for making Bridge rectifier 1N4007 diode – 1 IC 555 – 1 Transistor …
What is DIAC Diac is a device of the thyristor family. DIAC means Diode Alternating current. Diode + Alternating current. This is a type of diode that works in both reverse and forward bias. This diode work on the complete cycle of AC means this work during a positive half-cycle and also during a negative …
Arduino remote control AC Dimmer The brightness can be controlled using the IR remote of TV, DVD, etc. Dimming Control system using MOC3021, BT136 Triac and a zero-crossing detector circuit based on the MCT2E optocoupler. Optocoupler provides complete isolation between the AC side and the DC controller side. So if any fault or short circuit …
Servo motor control using Arduino Introduction What is Servo Motor Servo motor is a type of motor that can move or rotate its shaft in a specific angle with high precision control of angular or linear position, velocity, and acceleration. This is actually a DC Motor whose speed is slowly lowered by the gears. Servo …
What to do with an old dvd player Old DVD player hacks Convert old dvd player to USB Any DVD player in which Disk Loader is not working or laser lens is not working for detecting optical disk, then you can use this as a plug and play audio and video directly from USB storage. …
Difference between BJT and JFET Comparison between BJT and JFET BJT JFET As its name Bipolar junction Transistor, This is a bipolar device. Means Minority and Majority both contribute in current conduction. This is Unipolar device, Means Only Majority or Minority contributes in current conduction. This is a Current controller. This is a Voltage …
why ac current passes through capacitor but dc can’t how capacitor block dc current Explanation 1 We try to understand using a discharged battery in the circuit. When switch on, the battery is starting to charge and increasing the voltage level of the battery and there is a flow of current. When the battery gets …
kirchhoff’s law Kirchhoff’s voltage law (KVL) According to Kirchoff’s Voltage Law (KVL), In any closed circuit or mesh, the algebraic sum of all the emf (voltage source ) and all the voltage drops will zero. This Law deals according to the principle of conservation of energy, and according to the principle of conservation of energy …
