Pulse Automatic Control TRIZ Cases
- PLL Lock Detector Circuit Using Signal-Duration Filters
Signal-duration filters and timers detect PLL synchronization while reducing semiconductor die area and power consumption.
- USB PHY Power Regulation Using Integrated 3.3V Supply
Integrated USB PHY regulation circuit supplies 3.3V from bus voltage, eliminating external power sources and reducing implementation costs.
- Broadband RF Short DC Block Circuit Using Segmented LC Resonators
Segmented LC resonators with varied bond wires resolve the contradiction between frequency selectivity and bandwidth in RF transistor amplifiers.
- Current-Controlled Oscillator Linear Region Extension
Series resistors in the differential amplifier extend the linear region, preventing phase noise deterioration and deadlock states.
- Passive Remote Keyless Entry Security Against Relay Attacks
Measuring radio wave air travel time between the base station and mobile device prevents relay attacks by enforcing a strict maximum distance limit.
- Reset Circuit Power-On Detection Reliability
A reset circuit uses a starter mechanism to generate accurate power-on signals for semiconductor devices.
- Level Shifting Circuit for SiC MOSFET Asymmetric Gate Drive
A level shifting circuit converts symmetrical input signals into asymmetrical output voltages to drive silicon carbide MOSFET gates.
- Distributed Clock Signal Generator for IC Noise Reduction
A distributed clock signal generator uses frequency correction units to duplicate primary clock signals across secondary oscillators.
- Fractional-N Synthesizer Phase Synchronization via Timeout Circuit
A fractional-N synthesizer initializes interpolators via a timeout circuit to resolve long synchronization times and noise degradation.
- Steady State Frequency Control in Variable Frequency Switching Regulators
Segmenting frequency control into independent open-loop and closed-loop paths stabilizes steady-state frequency without compromising transient response speed.
- Silicon Photonics Integrated Control for High Bandwidth Data Transfer
Integrated silicon photonics control module manages signal processing and modulation formats on a single substrate.
- Dual-Oscillator Time Measurement System for Low-Power Accuracy
A dual-oscillator system uses periodic high-accuracy calibration to maintain precise timekeeping.
- Frequency Generator with Segmented Feedback Loops for Phase Noise Reduction
Segmented feedback loops isolate noise sources in a frequency generator, reducing phase jitter and improving response speed.
- PLL Non-Integer Divider for Low Phase Noise Clock Recovery
A phase-locked loop uses a state machine to select phase-shifted clocks, producing low phase-noise oscillations.
- Switched-Capacitor Common-Mode Feedback for Charge Pump Noise Reduction
Replacing continuous-time amplifiers with switched-capacitor feedback reduces noise and power consumption while maintaining precise common-mode voltage control.
- Film Substrate Antenna for Semiconductor EMI Reduction
A film substrate antenna generates a counteracting electromagnetic wave to reduce interference in semiconductor packages.
- Variable Vernier Digital Delay Locked Line Jitter Measurement
A built-in self-test circuit measures phase jitter using a variable Vernier digital delay locked line, resolving high-speed measurement complexity.
- Variable Frequency Circuit for RF Attenuator Noise Reduction
A variable frequency circuit adjusts oscillator output using dithering sequences to spread spurious tones across the spectrum.
- Phase-Locked Power-Oscillator System for CO2 Laser RF Combining
Automatic phase-locking eliminates manual current balancing and cross-talk, reducing energy loss while maintaining high power delivery.