Audio power amplifier with class-D push-pull output stage

Audio power amplifier with noise prevention at turn-on and turn-

Audio signal amplifier circuit and a portable acoustic apparatus

Audio signal amplifier circuit and electronic apparatus...

Audio signal amplifying circuit

Audio system with orderly shutdown sequence

Audio system with transient tracking dual voltage power supply

Audio-amplifier arrangement

Audio-frequency amplifying device

Audio-frequency power amplifier

Audio-frequency power amplifier

Audio-frequency power amplifiers

Auto bias circuit for power amplifier using power MOSFET

Auto gain controller having temperature compensation function

Auto-biasing circuit for current mirrors

Auto-equalizer apparatus

Automatic bias adjusting circuit

Automatic bias control circuit for linear power amplifiers

Automatic bias control circuit for reduced current...

Automatic biasing and protection circuit for field effect...