audio amplifier

MAXIMS MAX4295 CIRCUIT PROVIDES CLASS D MOTOR CONTROL

MAXIM’S MAX4295 CIRCUIT PROVIDES CLASS D MOTOR CONTROL

Class D audio amplifiers provide a dual benefit for battery-powered portable devices (Figure 1). They enhance battery life, and they produce much less power dissipation than do their linear cousins. Those features make Class D amplifiers ideal candidates for controlling speed and direction in small electric motors. The standard application circuit for a Class D audio […]

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5 W 5 W DUAL BTL CLASS D AUDIO AMPLIFIER

5 W + 5 W DUAL BTL CLASS-D AUDIO AMPLIFIER

The project described here is a high-efficiency dual BTL class-D audio amplifier with single supply operations. The project was built using TDA7491LP13TR from ST. The low profile PCB design can fit in a small area, operating power supply 9-12V DC, Project supports single-ended or differential audio signal inputs. Jumpers are provided to set the various gains, standby, and mute functions.

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audio amplifier

LM386 based stereo audio amplifier with digital volume control using PIC18F2550

Due to its simplicity (requires minimum external components) and high availability, LM386 is very popular among hobbyists for use in low-voltage audio amplification applications. Most of the time a potentiometer is used at the input side of LM386 to provide a volume control in the output speaker. The potentiometer does not control the gain of the

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