Variable emphasis circuit

Variable equalization system

Variable equalizer

Variable feedback circuits and methods

Variable filter circuit

Variable frequency characteristic circuit for a vehicular sound

Variable frequency class D modulator with built in soft clipping

Variable frequency PWM controller circuit

Variable frequency sources

Variable frequency system having linear combination of charge pu

Variable gain alternating voltage amplifier

Variable gain amplification circuit

Variable gain amplification circuit having a circuit for control

Variable gain amplification using Taylor expansion

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier

Variable gain amplifier