| 摘要 |
PROBLEM TO BE SOLVED: To provide a power amplifier capable of reducing current consumption.SOLUTION: A power amplifier includes a first potential line to which a first potential is supplied, a second potential line to which a second potential lower than the first potential is supplied, and a third potential line to which a third potential, between the first potential and second potential, is supplied. The power amplifier includes a potential generation circuit generating the third potential. The power amplifier has first and second output amplifiers in bridge connection, and includes a first BTL amplifier outputting a first output signal by amplifying a first input signal. The power amplifier has third and fourth output amplifiers in bridge connection, and includes a second BTL amplifier outputting a second output signal by amplifying a second input signal. The power amplifier has fifth and sixth output amplifiers in bridge connection, and includes a third BTL amplifier outputting a third output signal by amplifying a third input signal. The power amplifier has seventh and eighth output amplifiers in bridge connection, and includes a fourth BTL amplifier outputting a fourth output signal by amplifying a fourth input signal.SELECTED DRAWING: Figure 1 |
