Dual power supply circuit Some circuits required dual power for a better operation like a power amplifier, audio amplifier, or another power circuit. That circuits made for operating with dual supply input voltage. Dual supply means- One terminal gives +ve. One terminal gives -ve and one is for ground. Two terminals give +ve and -ve …
Electret Condenser Microphone Amplifier Circuit This is Another a circuit diagram of homemade MIC Speaker Amplifier using LM386. This is small and powerful for a low power supply. This is the Best and interesting circuit for the beginner. In this circuit, a transistor is used as a preamplifier which makes input signal noiseless and gives …
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Homemade MIC Amplifier Loudspeaker connection circuit how to connect condenser mic to amplifier You can connect condenser MIC with an amplifier circuit as given below diagram. This circuit will work very well with any type of Audio amplifier. Use only 3-6v for condenser MIC for the best result. The audio amplifier circuit needs 6-24v as …
Simple LED Flasher/chaser/Blinker Circuit This circuit is made using 5 NPN transistors, some capacitors and some resistors. 5 LEDs are blinking as shown in this video gif. you can connect more LEDs to this sequence by adding some more transistors. Q1-Q5= BC547 Resistors 1K-5, 22k-5 Capacitor 22uf 25v-6
 2 Led Flasher circuit Simple Blinking Flasher LED circuit This simple led flasher blinker circuit made by using two npn BC547 transistors and some resistors and capacitors. The speed of blinking can be changed by changing the value of capacitors C1 and C2. This led flasher circuit is very easy and simple and there is …
High voltage Protection circuit This is a Protection circuit from high voltage to any device by the automatic cutoff using popular ic 741. Note- Connect the load with NC pin of the relay When the input voltage at Non- inverting pin of op-amp 741 is cross over the set reference voltage. The output of this …
Electronic Fan Regulator AC Light Dimmer circuit Resistive fan regulator We first discuss the conventional big-size resistive fan regulator. Conventional Old ceiling fan regulators use resistive wire to connect in series and there are multiple points to connect the regulating knop switch to adjust the speed. This type of regulator works on a full resistor …
LED Flasher/Blinking Circuit diagram Using 555 timer This is a Popular and Simple LED Flasher circuit using one 555 timer ic and some other components. This circuit works on the principle of Astable Mode operation of 555 timer. Which produces a continuous Pulse wave at the output on pin 3. When the pulse signal …
What is NOT gate (Inverter) Â NOT gate logic inverter circuit NOT gate is Device which gives output always the inverse of INPUT. NOT gate output is always the complement of its INPUT. NOT gate also called an INVERTER and which has only one input and only one output. The main function of the inverter (NOT …
Automatic Temperature controlled DC FAN Controller Circuit We use many electronic gadgets like power Amplifiers, SMPS, Inverters, and AC-DC converters, etc. These gadgets use ICs that generate more heat during operation and required any temperature controller for Cooling to control the heat for protecting the devices. This circuit is ideal to control the cooling fan …
