Pulse Automatic Control TRIZ Cases

EMI detection triggers DLL clock phase shifts within the lock range, reducing interference while preserving high-speed memory timing.

Fine phase control with delay-based timing lets a PLL cut phase errors, spurious bands, and jitter in data recording clocks.

When VPP turns on before VDD, a voltage-drop unit initializes the level-processing path to prevent abnormal output signals.

Pulse-width-controlled charge pumping lets a sampling PLL tune detector gain for stable on-chip operation with lower noise and fewer spurs.

Dual voltage thresholds and a reentry protector stop noisy supply fluctuations from retriggering power-up, cutting initialization delay and current use.

A single SSB mixer with VCO, polyphase filter, and dividers generates six RF local signals while cutting circuit area, power use, and harmonics.

Pre-stored loop filter states let a digital PLL switch channels in nanoseconds while cutting settling time, power use, and transient effects.

Independent regulators and low-pass filtering isolate the charge pump from the VCO, cutting PLL supply noise and jitter.

An op-amp with resistor scaling boosts loop-filter equivalent capacitance without larger capacitors, improving PLL bandwidth and phase margin.

A digital oscillator applies stored fractional phase correction after a non-integer sync pause, shortening PLL transient settling.

Weighted fast and slow VCO control voltages cut PLL jitter and noise while preserving bandwidth, low power, and small die area.

A dual-loop DPLL uses time-stamp flags and NCOs to keep a receiver 27 MHz clock aligned and reduce multimedia frame drops.

Trigger peak detection restores clipped negative peaks in optical receiver signals, reducing distortion, bit errors, and CNR loss.

A PLL feedback loop with varactor tuning keeps phase shift constant despite RC variation and power supply fluctuation at high frequencies.

Using four 90° half-rate clocks, this case cuts oversampling logic to lower CDR and PLL latency, area, and power use.

A dual-chain DLL uses lock-state detection to fine-tune clock delay, keeping memory data output synchronized despite voltage variation.

Dual phase comparison and modeled delay compensation align memory data output with the system clock despite transfer-path delay and jitter.

A floating-state pre-charged PFD lets PLLs correct phase more often, cutting VCO jitter while improving noise filtering and divider simplicity.

Delay compensation aligns data and strobe signals across unequal PCB paths, reducing bounce noise and easing high-speed DDR layout.

Multiple DLL sections and feedback delay control align clock phases to cut skew and jitter for accurate high-speed data transmission.

A correction table linearizes the fast VCO modulation path, enabling rapid phase changes with smoother lock and less spurious output.

Dual delay switching widens PFD pulses during calibration to correct charge pump current mismatch and reduce static phase error in PLLs.

A comparator-based power-on reset circuit speeds supply detection while keeping trip points stable across temperature and process corners.

A DDS hybrid phase-lock loop digitally filters a jittery timing reference to generate a stable low-jitter clock at higher frequencies.

A phase detector and VCO keep voltage-current phase constant, preserving efficient switching despite resonant drift and load changes.

Cascaded binary stream switching and a synchronous counter generate fine fractional frequencies with lower PLL processing overhead.

A frequency tracking loop uses correlation and integration to correct VCO gain and offset, improving wideband phase/frequency modulation stability.

Detecting when all clock domains reach a common state lets the circuit release the next signal with less delay and fewer synchronization errors.

A pre-generated control pulse keeps DRAM data clocks active despite narrow read or internal clock pulses, preventing incomplete data output.

Bias current tracks VCO control voltage in a PLL D2S converter to cut power use while preserving duty ratio and voltage swing.

Two voltage conversion stages and an output latch keep signal transfer stable during supply fluctuations and voltage transitions.

A one-clock de-emphasis waveform reduces jitter on highly capacitive signal lines, improving timing consistency in memory signal transmission.

A voltage-limiting CMOS input buffer uses compensation and hysteresis to handle high-voltage interfaces, protect thin oxides, and improve noise margin.

ZQ calibration feedback adjusts DLL replica-path delay to hold DQ timing skew constant across temperature, voltage, and process variation.

Closed-loop modulation compensation calibrates the PLL filter from VCO input voltage to keep loop bandwidth stable across frequency bands.

Voltage limiter transistors and a constant current path protect low-voltage oscillator transistors from oxide overstress at high-voltage crystal interfaces.

Using ring oscillators, inverter amplifiers, a mixer, and a filter, this case cuts chip area and improves reproducibility in UWB chaos generation.