Circuit Diagram

19 + 19W Stereo Bridge Amplifier Circuit Using LA4440

Stereo Amplifier Board

Shown below is the one section of the stereo amplifier using LA4440. Parts Required: Capacitor: C1 – 10uF,16V C2 – 220uF,16V C3 – 2A222J C4 – 220uF,16V C5 – 220uF,16v C6 – 220uF,16V C7 – 220uF,16V C8 – 2A104J C9 – 2A104J C10 – 2200uF,25v Resistors R1 – 100E R2 …

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6v Battery Charger Circuit With Auto Cut Off Using LM317 And BC547

6v Battery charger circuit with auto cut-off |

Here іѕ a circuit whісh саn charge a 6V,4.5AH lеаd-асіd battery that are соmmоnlу used in еmеrgеnсу lіghtѕ. Wіth this сіrсuіt, wе саn lеаvе thе battery сhаrgеd all time wіthоut the fеаr оf оvеrсhаrgіng. The hеаrt оf the сіrсuіt іѕ thе popular rеgulаtоr IC LM317T. Aѕ per thе mаnufасturеr'ѕ specification, thіѕ IC can hаndlе іnрut voltage uрtо 37V аnd dеlіvеr current of 1.5A.

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Basic Automatic Water Level Controller Circuit Diagram Using 555 timer Ic

Automatic water level controller using 555 basic circuit

Automatic Water Level Controller Circuit Diagram Using 555 timer Ic For Overhead TankHere is a simple water level controller using the 555 timer ic which will monitor the overhead tank. It will automatically switch on the motor when the level of water falls below the predetermined bottom level and switches …

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12V CFL Inverter Circuit Using 3525 IC | Mini Inverter Circuit

12v cfl inverter circuit board

This circuit is used to drive a regular a/c cfl bulb upto 32 watts. You can try it by using more watts bulb or changing the transformer. The output of the sg3525 is fed to the transformer through two Mosfets. The pinout diagram of sg3525 is given below: Components Required: …

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Semi-Automatic Water Level Controller Circuit Project Using 555 Timer

semi automatic water level controller circuit project using 555 timer

This is a very simple water controller circuit built using the popular 555 timer ic. It is called as semi-automatic water level controller because we have to manually switch on the circuit and it will turn off the water pump automatically once the level of water touches the contact type …

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Power failure and resumption alarm cum indicator circuit using 555 timer ic

Power Failure And Resumption Alarm Cum Indicator Circuit Project Kit

Power Failure And Resumption Alarm Cum Indicator Circuit Project from KJMIndia This is a very simple circuit built using only few components to detect ac mains power failure and its resumption. The heart of the circuit is the most popular timer Ic 555 which is wired as monostable multivibrator. Bty, …

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Overvoltage and undervoltage protection circuit diagram | High and low voltage protection circuit diagram Using LM358

Main High/Low Voltage Cut-off Circuit Using Dual Op amp Lm358

Voltage fluctuations and power cuts adversely affect various electrical appliances such as Tv, music system, refrigerator, etc. Here is a simple and inexpensive circuit using opamp Lm358 to disconnect the equipment during high and low voltage. We can also use LM324 to design this circuit by using only the two …

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[Multi-Colour] Automatic Night Lamp Circuit Diagram Using LDR And CD4017

Automatic Night Lamp Circuit Diagram Using LDR And CD4017 Components Required: Resistors (All 1/4W)R1 – 220ER2 – 1M(Preset)R3 – 33K LEDs:(3m/5mm/8mm)L1- WhiteL2- YellowL3 – GreenL4 – BlueL5 – Red Transistor:Q1 – BC547Q2 – 8050 or SL100 IC:U1 – CD4017 LDRMomentary Switch (Push to on)PS – Power source 12VGeneral purpose PCB Nіghtlіghtѕ are uѕеful to show thе gеnеrаl …

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Burglar Alarm Using NPN(BC548)And PNP(SK100) Transistor

The burglar alarm circuit shown here sounds an alarm when the wire loop is broken.The system is implemented by installing a sensing loop, which is basically a thin copper wire. This way, the loop is both invisible and brittle enough to break easily and initiate the alarm mechanism.At the time …

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Parts Required: Capacitors C1 – 0.02uF ceramic disc C2 – 1000uF, 12V or 25V Resistors (All 1/4Watts) R1 – 100K R2 – 2.2K R3 – 47E Transistors T1 – BC547 (NPN) T2 – S8550 (PNP) Loudspeaker – 8 ohms Battery – 9V This is a simple audio alarm which operates from …

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