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Strip LEDs are available in different colours powered by direct current (DC) source. These LEDs are available as surface mount devices with... -
An increasing number of appliances draw a very small current from the power supply. If you need to design a mains-powered device, you cou... -
This circuit provides a simple means to determine the voltage of a low-impedance voltage source. It works as follows. P1, which is a 1-W p... -
Continuous monitoring of the mains voltage is required in many ap-plications such as manual volt-age stabilisers and motor pumps. An an... -
Here is a very simple and easy to use audio amplifier using I.C BEL (Bharat electronics limited)1895 , a very common IC. This circuit c...