Analogue/Digital Conversion TRIZ Cases

A correction circuit uses replica transistors to adjust resistor ladder voltages in successive-approximation-register analog-to-digital converters.

Dummy vias block stray light transmission between metal layers, suppressing signal corruption without increasing overlap distance or compromising compactness.

A switched capacitor circuit biases a source-follower buffer to resolve the trade-off between transistor linearity and power consumption.

Continuous calibration compensates for component drift in high-temperature electronics, reducing wiring complexity near gas turbine engines.

A delta-sigma modulation AD converter counts clock pulses upon receiving a reference signal to output digital data at precise intervals.

A current steering digital-to-analog converter circuit generates variable output currents using a decoder and control transistors.

A digital analog converter uses variable calibration periods to correct cell mismatches and improve interference-free dynamic range.

A membrane switch integrates digital and analog sensing via dual pressure thresholds to generate binary or variable signals.

A gain block applies a bias voltage to a digital-to-analog converter input to manage signal offsets.

A voltage generation apparatus adjusts load voltage using switch-controlled resistor sets for stable power delivery.

A track-and-hold circuit uses level shifters to maintain constant gate-source voltage across the MOS transistor switch.

A predictive tracking scheme feeds forward synthesized inductor current to reduce the required conversion range of a digital PWM controller.

A temperature sensor uses digital correlated double sampling to generate linear voltage signals from band gap reference circuits.

A voltage generator uses a digital-to-analog converter and voltage mixer to produce analog signals.

A position sensor learning method calculates offsets at defined positions to estimate an updated characteristic curve.

A variable gain amplifier circuit with a feedback loop detects amplitude levels to adjust signal gain.

Integrated Sigma-Delta modulator detects open pins by comparing digital streams against thresholds, preventing damage from undetected faults.

A current detection circuit uses a control branch to manage duty cycles and represent currents without external resistors.

Comparator feedback compensates manufacturing variations to stabilize current control without adding fusing circuits.

An electrostatic shield node minimizes parasitic capacitance to maintain linearity accuracy despite reduced unit capacitor values.

A bootstrapped clock generator maintains boost capacitor voltage below power supply levels to produce sampling control signals.

Host device transmits timing synchronization signal to sensor devices, resolving unclear update identification and reducing time lag between data outputs.

Segmenting the single converter into parallel channels resolves the contradiction between high-resolution motor control and rapid abnormal current detection.

A programmable reference signal selection circuit adjusts voltage levels to maintain stable measurement references.

Angle tracking observer compensates position errors across the entire speed range by measuring and storing data at specific electrical angular velocities.

Dynamic bias current adjustment in incremental ADCs reduces energy consumption while maintaining conversion accuracy during battery management oversampling.

Sub-Nyquist sampling in an antenna array enables wideband spectrum sensing without bulky hardware, capturing short-lived signals while reducing SWAP.

A Hall sensor circuit couples two sensing elements directly to analog-to-digital converter channels through passive resistor-capacitor filters.

A parallel optical sampler uses time-delayed channels to generate successive digital samples from analog input signals.

A battery monitoring device uses a reference voltage generation circuit to detect measurement errors in cell voltage systems.

Consolidates baseband and datalink systems to reduce size, weight, power consumption, and complexity in aircraft.

A solid-state imaging comparator merges P-type and N-type differential pairs to expand the analog-to-digital conversion input voltage range.

Digital calibration algorithms adjust programmable current sources to reduce mismatch errors between source and sink currents.

Segmented alternating polarity structures with compensation fingers resolve linearity errors from mismatch and parasitic capacitance.

A battery charger uses dual reference voltage circuits and an A/D converter to perform self-diagnosis of the conversion section.

Eccentric rotating mass motor transfers vibration to the rotatable shaft for haptic feedback while replacing mechanical detents that cause wear.

A current regulator operates a steering circuit in linear mode to reduce output saturation voltage.

Cascode MOS and GaN FET switches combine current sources to enable low voltage CMOS control of high voltage GaN HEMT bias conditions.

A sub-Nyquist sampling system acquires bioelectric signals by directing aliasing into frequency gaps.