Tag: Audio Power Amplifier

The following circuit diagram is a simplified application circuit of the TDA8932B/33(B) device when operated from an asymmetrical supply (single supply). Here’s the circuit diagram: To simplify the design for an asymmetrical supply in SE configuration, the TDA8932B/33(B) is equipped with three integrated half supply voltages buffers. The first buffer is for the reference decoupling capacitor (Chvpref) on HVPREF (pin […]

This is a little audio amplifier, it is similar to the audio amplifier which is used in small transistor radio. This circuit draws about 30 milliamps from a 9 volt supply. This circuit consist of two stage. First stage is input stage (2N3053 transistor)  and the other is output stage (2N3053 and  2N2905 transistor pair). Here is the schematic diagram […]

This audio power amplifier is very good for your portable devices, or for your headphones amplifier. The circuit of this audio power amplifier is very simple, consist of only seven components. Here is the schematic diagram of the amplifier circuit: Low harmonic distortion give you a hi-fi power amplifier, but in a very small wattage. Depending on the LM386 variants, […]