Electric Variable Regulation TRIZ Cases
- Voltage Generating Device Two-Stage Calibration Bandgap Circuit
Two-stage calibration adjusts bandgap and regulator resistors to eliminate clock noise and reduce temperature drift in the voltage generating device.
- Linear-in-dB Current Generator for Variable Gain Amplifier
A linear-in-decibel current generator uses parallel branches and dynamic biasing to produce variable gain.
- NMOS Linear Regulator Over-Current Protection Circuit
A linear regulator employs a PMOS current mirror to detect excessive currents in an NMOS driver, reducing silicon area while maintaining reliability.
- Adaptive RC Feedback Network for LDO Stability
A voltage-controlled variable resistor tunes an adaptive RC network in the feedback loop, countering phase margin degradation under wide capacitive loads.
- Voltage Reference Circuit Temperature Compensation
Segmented positive and negative coefficient units cancel T and T ln(T) terms, eliminating the temperature coefficient in analog ICs.
- Track Regulator Soft-Start Circuit Using Feedback Current Injection
A track regulator circuit injects a ramping current into the feedback resistor to control output voltage during startup.
- Voltage Regulator Phase Compensation for Low Current Stability
Detection circuitry disables phase compensation at low output currents to increase open loop gain, resolving instability in regulated voltage.
- Feed-Forward Voltage Regulator for High-Frequency Noise Rejection
A feed-forward compensated voltage regulator injects a compensation current into the control node to stabilize the feedback loop.