230V LED Bulb circuit schematic with explanation

this is  230V LED  bulb circuit diagram.At the moment 230V LED bulbs have become very popular due to its low power consumption and due to it's clear light.I suppose this little circuit will be very useful circuit for you all.If you are an underage guy don't try this because 230V is so dangerous.

Note : Always use the correct values when you build this circuit
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Cimple LED Flasher Circuit Schematic With Explation

This is a simple circuit diagram .Here we have used common IC LM317 T.You can choose flowing current according to the chart this circuit can be operated with 9V to 20V.







Note

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Led Chaser

This Led chaser is built using some very common digital logic circuits. Easy to build, easy to work with, and looks amazing in the dark. This circuit will light each led in sequence, creating a moving light illusion.

How it works:

From left to right, the first IC is a binary counter, 74ls163, that is used to generate the address numbers we are going to use in the second part of the circuit, the demultiplexer 74ls138. This demux is the core of the circuit, as this IC pulls low the pin selected in the address inputs. Note that you need an external clock for the counter to work (count).

This is a very simple circuit to build, just take note of the control pins on each IC, since both have enable inputs for counting or output, but once set you don't need to worry about them. It can also be extended to 16 leds by using the Q3 output of the counter to control the enable inputs of a second demultiplexer, or just add a second one to generate a double pattern.

You can find the datasheets for both IC's by following the links: 74ls138 | | 74ls163

Audio Amplifier Circuit Schematic With explanation

Audio Amplifier Circuit Schematic With explanation

Here is a simple audio amplifier circuit that is easy to build and has few components. This circuit is built around the LM386 (click for datasheet) audio amplifier integrated circuit, useful when you need to power medium sized speakers from a music player that can only drive earphones.

How it works:
From left to right, the first part is the input stage, here is the connector to the audio source connected too the circuit using a capacitor. This capacitor passes only the audio, and blocks any direct current that may affect the function of the amplifier. Next to the capacitor is a variable transistor (potenciometer), this is used as a volume control.

Next is the LM386 itself, this amplifies the audio input using energy from the battery it is connected to. You'll notice there are two capacitors connected to it, one above and one below in the schematic. The top one is connected from pin 1 (positive side of capacitor) to pin 8 (negative side), this is to get the maximum amplification this IC can generate. The bottom one is also there to help get maximum amplification, this one goes connected from pin 7 (positive) to ground.

Last is the output stage, it is made with two capacitors, one resistor and the speaker. The resistor and capacitor that are connected before the speaker form a filter, that attenuates high frequency signals coming from the amplifier, most likely noise picked up or generated in the amplifying process. The capacitor connected to the speaker is there for the same reason we used a capacitor in the input stage, to prevent direct current from causing undesired operation of the speaker.


(click to enlarge)

Led Flasher using 555 SChematic Circuit With Explanation

Led Flasher using 555 SChematic Circuit With Explanation

This circuit is built around one of the most popular timer integrated circuits, the 555 timer.This circuit will flash the led on and of at regular intervals.
How it works:
From left to right, the two resistors and the capacitor set the time it takes to turn the led on or off, by changing the time it takes to charge the capacitor to trigger the timer. Next is the 555 timer, this is where all the work gets done to determine the time the led stays on and off. It contains a complicated circuit inside, but since it is packaged in the IC it can be used as a simple component.
The two capacitors that are right of the timer are just accessories so to speak, but are needed for the timer to work correctly. The last part is the resistor and the led, the resistor is there to limit the current on the led so that it won't burn.


(click to enlarge)

(click to enlarge)
(pin numbers on actual IC)

Led Flasher Circuit using 555 Schematic With Explanation

Led Flasher Circuit using 555 Schematic With Explanation

This circuit is built around one of the most popular timer integrated circuits, the 555 timer.This circuit will flash the led on and of at regular intervals.
How it works:
From left to right, the two resistors and the capacitor set the time it takes to turn the led on or off, by changing the time it takes to charge the capacitor to trigger the timer. Next is the 555 timer, this is where all the work gets done to determine the time the led stays on and off. It contains a complicated circuit inside, but since it is packaged in the IC it can be used as a simple component.
The two capacitors that are right of the timer are just accessories so to speak, but are needed for the timer to work correctly. The last part is the resistor and the led, the resistor is there to limit the current on the led so that it won't burn.


(click to enlarge)

Led Flasher Circuit using 555 Schematic With Explanation

(click to enlarge)
(pin numbers on actual IC)

Led Chaser Circuit Schematic With explanation

This Led chaser is built using some very common digital logic circuits. Easy to build, easy to work with, and looks amazing in the dark. This circuit will light each led in sequence, creating a moving light illusion.

How it works:

From left to right, the first IC is a binary counter, 74ls163, that is used to generate the address numbers we are going to use in the second part of the circuit, the demultiplexer 74ls138. This demux is the core of the circuit, as this IC pulls low the pin selected in the address inputs. Note that you need an external clock for the counter to work (count).

This is a very simple circuit to build, just take note of the control pins on each IC, since both have enable inputs for counting or output, but once set you don't need to worry about them. It can also be extended to 16 leds by using the Q3 output of the counter to control the enable inputs of a second demultiplexer, or just add a second one to generate a double pattern.

Led Chaser Circuit Schematic With explanation

You can find the datasheets for both IC's by following the links: 74ls138 | | 74ls163