300W CLASS D AMPLIFIER CIRCUIT SMPS DIGITAL PREAMP SCHEMATIC CIRCUIT DIAGRAM
Class D Amplifier project used TAS5613 class amplifier integrated BTL mode 2 × 150 and mono 300w power can be used in the project 2X150W used TAS5613 working voltage 18v … 38v dc (asymmetric) writer used DC 30v. Integral has 44-pin PSOP3 and 64-Pin QFP sleeves Coil, large capacitors, etc. on QFP type PCB used in the project. all materials except the SMD tip.
The goal of audio amplifiers (class d amplifiers) is to faithfully, efficiently, and with low distortion reproduce input audio signals at sound-producing output elements at desired volume and power levels. Because audio frequencies range from about 20 Hz to 20 kHz, the amplifier’s frequency response must be good across this range (less when driving a band-limited speaker, such as a woofer or a tweeter). Power capabilities range from milliwatts in headphones to a few watts in TV or PC audio, tens of watts in “mini” home stereos and automotive audio, and hundreds of watts and beyond for more powerful home and commercial sound systems—and to fill theatres or auditoriums with sound.
TAS5613 CLASS D 300W AMPLIFIER CIRCUIT
TDA9859 with I2C-bus control is used on the Digital Preamp floor VOLUME, MUTE, INPUT, BASS, TREBLE, EFFECT, and SHUTDOWN controls are made on the LCD (LC7981) screen with buttons. The TDA9859 has source codes prepared with AVR Studio 4 software that does this with ATmega128 microcontroller communication.
ATMEGA128 TDA9859 DIGITAL PREAMP CIRCUIT
Class D Amplifier switched mode power supply is operated with flyback SMPStopswitch on the TOP261 integrated installation max. The TOP261EN is capable of delivering 333 watts of power for the class d amplifier, 30v, 12v and 8v, 5v for the digital preamp. The design of the SMPS circuit is made with the program PI Expert. All information about the SMPS cycle is given.