Audio Input Jack (Depending on the required input source connector).Ĭircuit Diagram for Class A Amplifier using TIP35C.In this project, we will drive a speaker using a simple and low-cost power amplifier, for the power amplification circuit we will use the TIP35C power transistor.įor this Audio Power Amplifier project, the following components are required. Thus, a power amplifier is an electronic device that provides the required power (voltage x current) to the loudspeaker. A power amplifier source the current to the load depending on the input signal amplitude. The output from the pre-amplifier is further submitted to the power amplifier. We as well know that there are several types of amplifiers in electronics, some common names that you might have come across are Buffer Amplifier, Pre-Amplifier, and Power Amplifier.ĭifference between Buffer Amplifier, Pre-Amplifier and Power Amplifier:Ī buffer amplifier produces the same signal exactly in the same amplitude from the weak sound source, whereas the pre-amplifier amplifies the signal to a much higher voltage from the input source. There are many classes of Amplifiers and we have previously built a lot of Audio Amplifier circuits ranging from small 10W amplifiers to heavy 100W Power amplifier. This is why we have something called Audio Amplifiers. This is because sometimes the produced sound output, let's say from a microphone or the pickup coils of the guitar, do not produce high current high amplitude output, therefore, it is not suitable to drive a loudspeaker. Loudspeakers are heavy loads, and they normally require high current to be driven which is provided by an external circuit.
0 kommentar(er)
