Push-Pull Amplifiers TRIZ Cases

Alternating class AB conduction and cutoff in the output transistors reduces idle current while preserving push-pull output continuity.

A self-configuring output stage keeps precision amplifiers linear near zero output, blocks parasitic diode current, and stays high impedance in multiplexing.

A speed-balancing resistor or MOS path matching cancels close-in zeros in class-AB drivers, improving in-band response and out-of-band attenuation.

Reactive delay matching between resonant stages and superconducting lines enables efficient wideband amplification for low-power high-speed signals.

Logic edge sampling and XOR processing suppress spurious switching in full-bridge PWM control, improving current sign accuracy under noise.

A switched current source uses control and mirror transistors to limit MOSFET output current and shape capacitive-load voltage transitions.

A transistor and three resistors match FET gate voltage and temperature coefficient, cutting distortion and bias design complexity.

Digital bias switching monitors PMOS and NMOS driver currents to cut crossover distortion and prevent shoot-through in amplifier output stages.

A four-port transformer couples two single-ended amplifiers to improve wideband common-mode rejection and suppress second-order intermodulation distortion.

Bias current derived from a test transconductance circuit compensates temperature and process shifts to keep amplifier gain stable.

Auxiliary current mirroring boosts op-amp slew rate only during transitions, preserving stability and keeping static current low.

A monitored adjustable supply lowers RF amplifier current spikes, preventing early battery shutdown and signal splatter during transmission.

A unified feedback path controls quiescent current and output common-mode together, avoiding loop coupling and preserving wide-band amplifier stability.

A linear boost circuit senses collector current drop and mirrors extra base drive to raise diamond buffer output current without high quiescent current.

Parallel transconductance paths and current mirroring improve RF mixer linearity while preserving the output current needed for conversion.

Dual OTAs, a resistive load, and offset current stabilize quiescent current under parasitic loads while preserving linearity in high-speed circuits.

Digital error signal monitoring detects amplifier output faults early, enabling muting or current limiting to prevent damage and preserve signal quality.

Bias voltage control and low-threshold transistors let this CMOS class AB stage maintain linearity and stable output from 0.9V to 5V.