Dc-Dc Conversion TRIZ Cases

A PWM control circuit adjusts sensed voltage during PWM-PFM transitions to suppress ripple and protect circuit elements.

Voltage monitor circuits in cascoded DC-DC power switches limit inductive voltage stress and prevent cross conduction between HS and LS stages.

Separate DC-DC stages pre-generate voltage levels for fast polarity switching and low-ripple dual DC output in wafer plating.

Magnetically coupled inductors detect fault current changes without sensing resistors, cutting power loss and component count.

Current cutoff circuits isolate a failed booster branch and lower the healthy branch current so valve-driving boost operation can continue.

A voltage regulating unit limits ORing MOSFET gate-source voltage during power-on and short-circuit events to prevent damage.

Adaptive pulse skipping and on-time control stabilize heavy-to-light load transitions while cutting switching loss and voltage ripple.

When one output voltage drifts, the control circuit extends that secondary switch ON time to rebalance multi-output SMPS power.

Comparator-based monitoring detects open or short bootstrap capacitor faults in switching converters before improper operation damages components.

Voltage sensing across a gate resistor detects slight SiC gate leakage current early, helping diagnose gate oxide deterioration before failure.

A charging IC switches between direct and switching chargers to speed battery charging while maintaining voltage and preventing overcharge.

An op-amp level shifter converts ground-referenced dimming signals to negative potential for stable, linear LED driver control.

Using terminal current at the internal power supply pin, one chip supports multiple modes without extra terminals, cutting size and inventory burden.

Adaptive offset and ramp signals tied to input-output voltage difference suppress subharmonic oscillation and stabilize buck regulator control.

Sampled resistor voltages drive synchronous rectification in an isolated bidirectional DC converter, cutting conduction loss and stability tradeoffs.

A resonant isolated bidirectional DC-DC converter uses soft switching and a transformer tank to cut EMI and switching loss at high voltage gain.

Timing-based monitoring and DAC current injection restore volt-second balance in half-bridge LLC converters during burst mode.

Opposition-controlled dual-active-bridge converters cancel common-mode currents, cutting EMI at high switching frequency without bulky filters.

Load-based switching frequency control prevents transformer saturation during transients and limits converter temperature in steady heavy load.

Mode switching between buck, boost, and pass-through cuts standby power while maintaining efficient voltage regulation across a wide input range.

Holding capacitor voltage between sensing periods cuts settling time and keeps power converter current sensing accurate at high switching frequencies.

A switched-capacitor converter requests matching input voltages and changes conversion ratio to supply external devices safely.

Multi-stage p-type transistor and Zener ladder clamping regulates supply voltages during transient peaks and improves negative pulse immunity.

A single low-side shunt enables dual-side current sensing in a switching regulator, cutting sensing complexity and energy use while stabilizing output voltage.

Temperature feedback from the inductor adjusts PWM duty cycle and absorption control to limit heat while maintaining boost converter output.

Dynamic mode switching limits boosted-voltage use in a differential driver, cutting DC-DC power loss and EMI while preserving output range.

A machine learning controller adjusts power converter switching frequency in real time to balance efficiency, temperature, and response.

A programmable offset and loop comparator keep DC-DC converters stable at light loads while preserving precise output voltage regulation.

ADC-based digital feedback and calibration compensate PVT variation in DC-DC power management, improving settling time and efficiency.

Shared current sensing lets each phase adjust PWM edges for self current balance, reducing control-path complexity in multi-phase converters.

Regular supply-voltage sampling with latched lookup-table control cuts inductor current rise, lowering active power and inductor size.

Shared high-side and low-side sensing cuts detection-circuit area while preserving accurate short-circuit overcurrent detection.

A dual-bridge buck-boost converter switches modes across wide input voltages to cut losses, simplify drive control, and keep power density high.

An auxiliary active rectifier and DC/DC filter cut differential and common mode noise, enabling smaller EMC filters under changing grid conditions.

Variable offset and ramp currents tied to Vin-Vout stabilize PWM control and preserve current regulation across wide voltage differences.

A low-voltage sensing step measures heater resistance for temperature control, cutting power use in aerosol generation.

Two voltage-drop checks at different output voltages help distinguish defective active-diode MOSFETs in redundant power supplies.

A PMOS-NMOS dual-supply VCO regulator switches modes to balance PSRR and noise bandwidth while reducing noise spikes and EMI.

Excess output energy is routed through the input source or to ground when thresholds are exceeded, protecting converter components and the power source.

Dual active bridge submodules add galvanic isolation inside MMC and HMMC converters, cutting transformer weight, volume, and cost.

A clamping circuit and modified switching patterns balance MOSFET losses and avoid blocking-voltage and transformer-flux spikes.

Decoupled share-control loops and saturation prevention keep parallel voltage regulators stable across load changes while improving current sharing.

Series-coupled voltage and current control keeps programmable power supplies tightly regulated through CV-CC transitions while reducing dissipation.

An integrated error signal, three-level comparator, and digital counter cancel regulator offset voltage to improve output accuracy and stability.

Shunt feedback through a current mirror lowers interface input impedance without changing the input path, improving switching performance and bandwidth.

An energy storage backup keeps controllers and sampling active during supply failure, cutting redundant circuitry while improving fault isolation.

Output-voltage sampling adjusts flyback peak current in real time to keep average output current stable across input and output changes.

A queued internal clock and carrier-slope scaling let a power converter track external clock changes, cutting EMI and improving power management.

Extending high-side switch ON-time enables reliable over-current detection in switching converters without missing faults during short cycles.

Per-phase loop control and pulse generation reduce TLVR phase asymmetry, improving transient response in multiphase converters.