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    592 articles written by P. Marian

    Author: P. Marian

    About: I love all about electronics, circuit diagrams and crazy projects that can help us achieve almost everything our mind can conceive. I created this website and I want to invite you to participate in our project and create the greatest electronic circuits database.

    Website: http://www.electroschematics.com/

    Wireless Charging

    Wireless charging consists in transmitting the electrical power without wires. Wireless power transmission is a tehnology that is most used for charging the batteries of different devices such as: phones, tablets and more. Basically there are two ways to wirelessly charge a device: inductive and capacitive. Wireless energy or power transmission is useful in cases where power line cables...

    HV4205E Single Chip Voltage Converter

    With HV4205E you can build a simple single chip voltage converter. With IC and a few external components connected like in the schematic you can obtain dc stabilized voltages between 5 to 24V directly from main power source (100 to 260V ac). The maximum output current is 50mA. The main chip contains a preregulator which ensure C2 charging voltage...

    12V DC to 120V AC Inverter Circuit

    Here is a simple 12 volts DC to AC inverter circuit. This 120V AC power source is built with a simple 120V:24V or 110V:24V center-tapped control transformer and four additional component. This circuit outputs a clean 200-V pk-pk square wave at 60 Hz and can supply up to 20W. The circuit is self-starting and free-running. If Q1 is faster...

    TDA2822 Datasheet

    The TDA2822 is a monolithic integrated circuit in 12+2+2 powerdip, intended for use as dual audio power amplifier in portable radios and TV sets. TDA2822 features supply voltage down to 3V low crossover distorsion low quiescent current bridge or stereo configuration TDA2822...

    LM3886 Datasheet

    The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz. The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature ( SPiKe™) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically...

    TDA7294 Datasheet

    The TDA7294 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV). Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads even in presence...

    LM2902, LM124, LM224, LM324 Datasheet

    The LM2902, LM124, LM224, LM324 series consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage....

    Increase Regulator Voltage Output

    It is often necessary to arrange an voltage regulator IC to give a higher output voltage than that set by the regulator alone. One method to achieve this is by connecting the “common” terminal to the mid-point of a potential divider but the problem with this method is that IC regulators have a small quiescent current (~10mA) flowing out...

    USB DC Power Supply from Cigar Lighter Socket

    The diagram shows the circuit of a versatile USB power socket that safely converts the 12V battery voltage into stable 5V. This circuit makes it possible to power/recharge any USB power-operated device, using in-dash board cigar lighter socket of your car. The DC supply available from the cigar lighter socket is fed to an adjustable, three-pin regulator LM317L (IC1)....

    Variable Power Supply with 78XX regulator

    This variable power supply is using 7805, 7809, 7812 or 7815 voltage regulators, where the last 2 digits represents the maximum output voltage of the IC. This circuit offers excellent ripple rejection, eliminates mains hum, and has a design using a pi filtered C-L-C. A core should be chosen to work within the specific frequency as stated by the...