220217 ⎘
Details of arrangements for controlling amplification; Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
Power amplifier circuit
#2Sensor chip using having low power consumption
#3High dynamic range transimpedance amplifier
#4Plural feedback loops instrumentation folded cascode amplifier
#5Power amplifier circuit
#6Bandgap reference circuit and sensor chip using the same
#7Programmable impedance network in an amplifier
#8Variable gain amplifier and driver implementing the same
#9Differential amplifier
#10Automatic gain control feedback amplifier
#11Low noise variable gain amplifier utilizing variable feedback techniques with constant input/output impedance
#12Audio signal amplifier for karaoke player
#13AC to DC conversion circuit
#14Linear transimpedance amplifier with multiplexed gain stage
#15Hearing aid with automatic excessive output sound control
#16VARIABLE ATTENUATION CIRCUIT
#17Method and apparatus for gain control
#18High-power amplification circuit for amplifying a high frequency signal
#19Variable gain amplifier system including separate bandwidth control based on inductance contribution