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Here is a simple circuit to charge 6V, 4.5Ah rechargeable Lead-acid battery from the solar panel. This solar charger has current and voltage regulation and also has over voltage cut off facilities. This circuit may also be used to charge any battery at constant voltage because output voltage is adjustable.

 

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This article aims to describe the principle of operation, design, and working of a simple car battery charger from the AC mains supply and a feedback control section to control the battery charging.

 

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In this project, we are designing the circuit which is used to detect and control the water level automatically in an overhead tank using 8051 microcontrollers. It is used in industries to control the liquid level automatically.

 

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The main principle of the circuit is to flash an LED every 5 seconds. The circuit consists of a 7555 timer IC as the main component

 

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This is the simple and cost-effective automatic emergency light circuit with light sensing. This system charges from the main supply and gets activated when the main supply is turned OFF. This emergency lamp will work for more than 8 hours.

 

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The main principle of this circuit is that the door lock opens only when the buttons are pressed in an order. The transistor and diode play a main role in the circuit.

 

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This charger automatically shuts off the charging process when the battery attains full charge. This prevents the deep charge of the battery. If the battery voltage is below the 12V, then the circuit automatically charges the battery.

 

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The main principle of this circuit is to switch ON the light when the LDR is illuminated. This circuit can be used in security applications like when there is darkness on the LDR, it stops lighting.

 

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This is a simple spy robot circuit that can be controlled by the remote. The maximum controllable range is 125 meters. It is used to observe the behavior of wild animals where human beings cannot reach

 

[darkweakman]

Thanks for sharing!

 

[chatblanc7]

Thank thanksss