Amplifier With Semiconductor-Devices/Discharge-Tubes TRIZ Cases
- Reference Voltage Circuit for Cascode MOS Withstand Limits
A switched divider and buffer circuit adapts reference voltage to supply changes, keeping cascode MOS transistors within safe limits.
- Switched-Capacitor Reference Voltage Circuit for Offset Correction
A switched capacitor in the amplifier feedback path corrects input offset voltage to keep the reference voltage stable across temperature.
- Modulated Current Source with Split DC and Signal Current Stages
Two autonomous current stages decouple DC and modulated components, improving feedback-loop stability and avoiding hump-induced restarts.
- Paralleled LDO Current Sharing With Lossless Offset Compensation
Lossless current sensing and offset correction let paralleled LDOs share load evenly without extra power or degraded regulation.
- Pressure Transducer Auto-Zeroing and Electronic Level Adjustment
Automatic zeroing and software-based level correction improve invasive pressure monitoring accuracy while reducing setup time and contamination risk.
- Voltage Regulator Bias Boost for Post-Dropout Overshoot Control
A dropout detector triggers amplifier bias boost pulses to speed voltage recovery while limiting damaging overshoot in regulators.
- Reference Voltage Startup Check Using Minimal MOS Transistor Stacks
Minimal MOS test stacks verify reference voltage startup with binary signals, reducing start check circuit area and complexity.
- Dual-Feedback LDO Amplifier for Wide Bandwidth and PSRR
A two-stage amplifier with positive and negative feedback expands LDO bandwidth while preserving phase margin to improve PSRR and suppress noise.
- MOSFET Threshold Voltage Sensor Using Current Mirror Bias Control
Bias-controlled current mirroring and a diode-connected MOSFET remove resistor and mobility variation effects in threshold voltage sensing.
- Replica Bias Circuit for Low-Noise Load Current Control
A matched replica transistor and feedback loop stabilize load bias current across PVT variation while isolating supply noise and cutting power use.
- Differential Transconductor Feedback for Fast Slew and Low Quiescent Current
A negative feedback path and current limiting component raise transconductance during large input differences while keeping quiescent current low.
- Active Frequency Compensation Circuit for Small-Capacitor Stability
Uses transistors, resistors, and a small capacitor to shift poles and zeros, stabilizing feedback circuits without hard-to-integrate large capacitors.
- PMOS-Compensated Buffer Circuit for Stable Trigger Voltage
A PMOS-based voltage adjustment stage compensates process corners to narrow buffer trigger voltage variation without adding latency.
- Multi-Bias Current Conveyor for Accurate Pulsed Current Mirroring
Dynamic bias switching keeps cascode transistors in saturation, improving bidirectional pulsed current mirroring and reducing charge loss.
- Bandgap Reference Circuit With Current Mirrors for Low-Noise Stability
Averaged current mirroring and amplifier feedback stabilize bandgap voltage across supply and temperature ranges while keeping quiescent current low.
- Distributed Power Circuit for Fast Voltage Switching in 5G RF
A segmented PMIC and voltage amplifier approach enables rapid 5G RF voltage switching while limiting in-rush current and ripple.
- Voltage Regulator Current Mirror for Overshoot Smoothing
An attenuated mirrored load current is filtered and re-injected to smooth overshoot events without faster amplifiers or higher power draw.
- Self-Stabilized LDO Regulator With Simplified Frequency Compensation
A self-stabilized secondary amplifier simplifies LDO frequency compensation, avoiding external capacitors while keeping ripple low.