Electronics Projects Archive

PC sound cards with multiple line outputs are commonplace than left and right channel for classical stereo reproduction. The described TDA2040 amplifier is designed especially for sound cards with four..

The circuit is designed for DC 12V motor and has been tested with miniature drill BOSCH MBM04. Because they can take motor from the source of higher currents, it is..

Small amplifier TDA7377 of 15W + 15W + 30W in 4 ohms At the request of our followers, we have developed an amplifier with the following characteristics: The TDA7377 is..

When reviving a luxmeter on a printed circuit board, there was a problem that the proposed connection is inoperative. The first option was quickly verified by measuring the printed circuit..

Deals with the design of a special security system in which, apart from the usual parts such as camera and motion sensor, a USB dongle will be used to send..

The solar cell powered back-up power supply should be as efficient as possible, it should be simple construction due to possible failures and should be reasonable sizes. The design of..

Many times we have been asked about an amplifier that can be powered with the computer source to amplify this. We have also seen the need for an amplifier that..

The charger presented in the article is intended for charging the battery pack – LiFePO4 2S 1.8Ah with electricity from a photovoltaic cell. The charger is based on a LTC3652HV..

The amplifier uses a hybrid two-channel IC STK4241-II manufactured by SANYO. Immediately, it is worth noting that the pinout of the STK4241 is compatible with such chips as the STK4201V-series..

Often there is a need to control the working time of the device powered by mains voltage. Different time switches are available in the market, but most of them require..