Dc-Dc Conversion TRIZ Cases

A single inductor with time-multiplexed switching generates multiple reversed-polarity rails while cutting loss and converter size.

Zener diodes, a MOSFET, and blocking diodes clamp input surges, stop reverse polarity, and let the inverter recover automatically.

Interrupting the feedback control signal enables fast safety shutdown without extra contactors, complex wiring, or contact welding risk.

Mutual-inductance detection coils compare transmit and receive power to spot small metal foreign matter without cameras or thermal imaging.

Current-triggered boost bypass cuts long-cable DC losses while maintaining radio voltage and avoiding low-load converter inefficiency.

PWM trigger delay limits total load current while keeping multi-phase output currents balanced and stable during current limiting.

Internal voltage harvesting and regulation let a GaN power switch run its driver without a fourth pin, enabling direct MOSFET replacement.

Feedback-based control switches a power converter across boost, LDO, and bypass modes to improve supply flexibility under varying voltage and current conditions.

Dynamic buck-bypass and variable-buck-input control helps a multiport USB-PD adapter cut voltage drop and keep stable output across ports.

Ton-min modulation lets a power converter keep constant switching frequency across Vin and load changes while improving low-load efficiency and EMI behavior.

A multiphase controller briefly enables maximum channels during load-current rises to suppress output-voltage drop and keep DC-DC loads stable.

Phase enablement is synchronized to TDD downlink and uplink timing, cutting converter power loss across changing radio loads.

Hysteretic average current mode control uses current sensing and offset thresholds to remove secondary compensation loops in digital voltage sources.

A tuned RLC snubber targets output rectifier ringing frequency to cut voltage peaking, EMI, and heat loss in switching power supplies.

Using a VCO and counter, this case tracks inductor current from inductor voltage to simplify converter sensing and cut power use.

Cycle-by-cycle inductor short detection uses decoupled voltage sensing and phase shutdown to protect DC-DC converters from heat and damage.

A reconfigurable active front end combines AC-DC charging and DC-AC power conversion to cut size and cost while supporting simultaneous use.

A relay-switched hold-up branch stores and transfers energy through the PFC choke to extend PSU ride-through while limiting inrush on power return.

Automatic AC and DC current-feedback mixing balances droop in DC-DC regulators to preserve loop stability and improve load transient response.

A learned load voltage guides capacitor charging and converter control to keep LED turn-on fast and consistent across voltage ratings.

Dynamic compensation scaling keeps output current consistent and reduces jitter during multiphase power supply phase switching.

Dynamic gate-drive voltage control helps LED switching power supplies avoid shoot-through and maintain efficient conversion across light and heavy loads.

Peak-triggered drain-voltage sensing improves inductor zero-cross detection in ultra-low power DC-DC converters while limiting power loss.

Adjustable driver resistance raises switch-tube loss to rapidly discharge stored energy without heat-damaging resistors.

A dual-loop VDS clamp speeds low-side transistor protection by cutting gate voltage during ringing, reducing damage risk and circuit area.

Charge from parasitic capacitances is redirected to an integrated capacitor to generate bias signals with lower power loss and smaller converter footprint.

Indirect mains sensing with voltage division, current transformation, and loss modeling improves supply power accuracy while preserving isolation.

Direct bare-die connection to lead-frame electrodes removes the external PCB, simplifying buck converter packaging and improving reliability.

Multiplexer-routed control and feedback let one PMIC switch between buck-boost and dual-buck modes, cutting variant cost and reuse waste.

Phase enable timing follows the TDD frame so the DC-DC converter cuts power loss while supplying downlink and uplink radio loads.

Two independent half-bridges with SiC MOSFETs generate high-frequency asymmetrical pulses while avoiding DC bus short-circuits.

Pseudo-random PFM timing spreads switching peaks into white-noise-like spectra, reducing audible buck regulator vibration and sound.

High-permeability regions between adjacent conductors redirect magnetic flux, cutting coupling and preserving inductor characteristics in compact arrays.

A calibrated inverter time base corrects aging and thermal drift to keep grid frequency measurement accurate and AC feed-in stable.

Voltage sampling and switched gate pull-down prevent false short-circuit trips from lamp inrush currents while avoiding afterglow.

Dual-loop variable resistors tune temperature coefficient and suppress load-driven voltage drift for a more stable reference output.

A separate flyback VCC circuit removes the auxiliary winding to keep controller supply voltage stable while improving converter efficiency.

Resonance current sensing replaces dual inductor voltage probes to detect resonant period with less noise, smaller circuitry, and accurate ZVS timing.

A detector and monitor processor cut ECU processing load during inductor short faults to keep multiphase supply voltage in range.

A parallel main and auxiliary GaN switch in a flyback converter cuts transistor stress and limits on-resistance growth over time.

A P-type high-side switch and PWM combiner cut resistor bias current, reducing resistive loss and improving IC efficiency.

Fixed-duty step-up switching and second-switch current sensing keep a step up/down regulator stable and responsive across varying battery voltages.

Selective phase activation matches converter output to the requested light beam, improving low-current efficiency in pixelated vehicle lighting.

Independent feedback loops and a primary controller let modular power units scale output flexibly while preventing oscillations.

By processing only a fraction of PV input power, this converter cuts cost, weight, and control delay while improving MPPT efficiency.

A dual-branch inductor circuit adjusts frequency and current direction to generate targeted therapeutic magnetic fields in body tissue.

A sensing circuit delays transistor turn-off to discharge parasitic inductance, cutting DC-DC converter overshoot and transistor stress.

A shared primary-secondary current path cuts primary winding area and rectifier loss in a full-bridge DC-DC converter.

Higher-frequency clock generation speeds phase addition in multiphase converters to prevent output voltage undershoot during load steps.

A shared primary-secondary return path lowers primary winding area and rectifier loss in a non-isolated full-bridge DC-DC converter.

Input-voltage feedback corrects each converter ON-time to keep multiple power converters balanced without difficult current detection.

Dynamic input switching limits error-amplifier stress in a voltage regulator, reducing offset drift while preserving regulation accuracy.

Gradual switch ON-time control short-circuits selected converters to stabilize DC bus voltage and suppress peak current during faults.

Stepwise switching-frequency control cuts controller load while limiting switching losses in power converters with shared control.

Using a partially saturated inductor at peak current cuts converter size while preserving stability and efficiency through modified current-mode control.

A comparator detects output voltage dips early and turns on the switching element faster to suppress transient drops during sudden load increases.

Dynamic inverter mode switching limits leakage-inductance voltage to preserve soft switching and stable load current during faults.

An added output-voltage path modifies slope compensation to extend switch on-time, cutting voltage drops and fluctuation with low power use.

By switching between full-bridge and half-bridge modes by input voltage, this power supply cuts conduction loss and supports smaller capacitors.

Blocking parasitic current between separate LED drivers prevents flicker and instability, enabling deep dimming without synchronization.

Alternating floating-capacitor switching converts multiple input voltages to a charging output with fewer converter circuits and less device area.

Periodic switching of the magnetron filament circuit limits cathode overheating, cuts wasted power, and extends service life.

Stacked half-bridges and phase-shifted control raise converter power while cutting capacitor count, ripple currents, and sensing complexity.

Inductor-based pumps in heterogeneous ICs boost voltage with higher current, lower energy loss, and better load stability than charge pumps.

Adaptive ramp and middle-voltage PWM control keeps a step-up/step-down DC/DC converter stable as input voltage and clock frequency change.

NMOS discharge paths and inverter gate control speed pumping-node reset in a negative voltage generator while cutting area and power use.

A two-stage isolated converter uses a high-frequency transformer to cover wide EV battery voltages while easing MOSFET switch current demands.

Fault-indication pulses let non-faulty phases take over and reassign phase operation to keep output stable while cutting ripple and power loss.

Shared ramp and ripple injection stabilize multi-phase on-time power control with ceramic capacitors, improving load response and output regulation.

Timer- and peak-current-based state control smooths buck, buck-boost, and boost transitions to minimize output voltage overshoot and undershoot.

A loop current and stabilizing circuit suppress output-voltage oscillation during load changes while maintaining steady power delivery.

Switching circuitry limits error-amplifier input stress in a voltage regulator, reducing offset drift while preserving regulation accuracy.

Real-time boost feedback stabilizes emergency lighting voltage during charging faults and long outages, preventing flicker and low brightness.

Duty cycle symmetry control adjusts reference voltage drift in CLLLC converters, enabling synchronous rectification without direct current sensing.

Removing secondary-side resonant capacitors and inductors simplifies bidirectional LLC converter control while cutting circuit size and cost.

Low-side switch sensing estimates high-side inductor current without shunt resistors, improving accuracy and reducing power loss at short duty cycles.

Dynamic threshold compensation uses primary-side feedback, LED current, and temperature to keep isolated LED converters near safe voltage limits.

Switching-frequency-based current limit control lets a power converter handle peak demand while reducing conduction losses in normal operation.

A self-aligned gate poly silicide cuts gate resistance in shielded-gate trench MOSFETs without extra masking, enabling faster switching.

External resistor-based slew control tunes gate drive strength to limit overshoot and ringing without adding switching losses in power converters.

Duty-cycle distribution lets one inductor feed multiple loads with different power levels, cutting converter count, board space, and cost.

Directional permeability in a composite reactor core suppresses iron loss and leakage magnetic flux at high frequency and large current.

Linear current models use output voltage, phase currents, and coupling factors to improve multiphase converter balance and prediction accuracy.

Reverse current sensing extends ACF converter dead time during short circuits, allowing body diode recovery and preventing switch failure.

Threshold-based tail-current boosting helps a DC/DC converter respond faster to load changes while keeping output voltage stable.

Two parallel DC voltage units and series capacitors stabilize DC-link voltage under unbalanced three-phase loads while reducing capacitor size and space.

Reference voltage feedback and sensing resistors balance parallel buck-stage currents, reducing thermal mismatch and power loss.

A lower derived feedback voltage cuts boost converter feedback power use while preserving output voltage stability and control.

Voltage-dependent parasitic capacitance suppresses turn-off surge and loss in a power semiconductor without added external capacitors.

An up-down counter reacting to comparator output keeps LLC switch signals near 50% duty, improving load handling and cutting control cost.

Switching between delta-wye and interleaved modes cuts circulation currents, preserves boost capability, and keeps high-power converters compact.

Voltage-threshold load switching stabilizes auxiliary power under weak photovoltaic input, preventing repeated startups and failures.

Dual feedback and a compensation circuit correct PCB impedance voltage drop and ripple, helping maintain stable SOC load voltage.

Closed-loop cell voltage adjustment equalizes power across ISOP solid-state transformer cells despite tolerances, reducing control cost and design burden.

Integrated and differential voltage processing suppresses noise-triggered false overcurrent detection while enabling fast switch-off during load faults.

Integrated on-time and off-time generation improves PWM response to load changes while keeping output voltage stable with lower circuit complexity.

A discontinuous-mode pre-regulator with a fixed-ratio converter sustains fast load transients while keeping low-voltage output ripple and efficiency in check.

Deadtime compensation adjusts phase angles and modulation frequency in a dual-active-bridge converter to cut heat and power loss under varying loads.

Analog current integration lets a phase controller measure light-load current accurately and adjust ON-time and switching frequency for better converter efficiency.

A controller switches a full-bridge circuit between full- and half-bridge modes to widen voltage range while simplifying the converter and reducing losses.

Segmented power stages and local variable-voltage gate drivers cut switching loss at light loads and conduction loss at high loads.

Heterogeneous power stages switch between single-phase and multi-phase operation to improve light-load efficiency and extend battery life.

Dual-mode control switches from linear to hysteretic operation during load transients to stabilize output voltage while limiting EMI.

Magnetically coupling the output inductor with transformer windings cuts output current ripple while reducing DC-DC converter size, weight, and cost.

A boost-based PFC layout cuts capacitor volume while sustaining output voltage longer during interruptions in compact AC/DC converters.

DMA-fed lookup tables update pulse width and repetition period values to give power converters flexible PWM, PFM, or hybrid PWFM control.

By using the transformer secondary as current-doubler inductors, this converter cuts parts count, eases voltage stress, and supports dense high-current PCB layouts.

Dynamic reference voltage compensation stabilizes constant on-time power conversion and improves output voltage accuracy with low-ESR capacitors.

A dual POR and brown-out circuit uses backup supply hold-up and fast discharge to reset ultra-low-IQ converters during rapid input collapse.

Transformer-isolated gate drivers send both power and switch signals to bidirectional FET pairs, reducing startup loss and transient risk.

A variable burst regulator and current-driven clock spread DC/DC converter frequency to cut electromagnetic emissions and meet CISPR 25.

A no-load freewheeling stabilizing circuit keeps AC output stable while enabling multi-output AC and DC power with leakage protection compatibility.

Out-of-band pulse synchronization enables higher-power short-reach Ethernet distribution while limiting line effects and cable faults.

Dynamic shielding time blocks false synchronous switch turn-on during drain voltage resonance, preventing Short-Through in flyback converters.

Dynamic switching-period adjustment keeps converter phases misaligned to cut ripple current while avoiding subharmonic oscillation.

Dual compensation paths split transient and stability tuning in DCR current sensing, reducing repeated adjustment from inductor mismatch.

A single-output flyback-LLC plus buck stage powers RGB common-anode LEDs with fewer transformers, cutting size and improving efficiency.

Interleaved PFM pulse timing and shared current sensing cut power use and output ripple in multiphase converters at light loads.

Selective activation of only needed converter phases improves low-current vehicle lighting efficiency while meeting beam power demand.

A PCB planar transformer replaces bulky ferrite-core parts to deliver multiple isolated gate-driver outputs with lower profile and cost.

A dual-coil SMPS layout cancels magnetic field noise in hearing aids, protecting communication coils without added shielding.

Sequential step-up and step-down voltage selection cuts imaging driver power while preserving drive capability and easing thermal design.

Existing power transistors form a charging loop to precharge the flying capacitor, cutting circuit cost and complexity at startup.

A shared bus capacitor and balancing circuit handle unbalanced load fluctuations, cutting inverter cost and losses during grid faults.

A flying-capacitor DC-DC stage and SVPWM multilevel inverter deliver medium-voltage UPS output without transformer losses or bulky copper cables.

A transistor-rectifier discharge path empties stored capacitor charge quickly, shortening unknown load power states during shutdown.

A dual-string converter uses controllable and unidirectional switches to run when DC link voltage falls below AC phase voltage.

A switched feedback loop lets a capacitor hold the sensed voltage between sampling periods, cutting settling time in power converters.

A CNN-based controller uses time-state sensor data to balance efficiency, settling time, and output ripple under changing DC-DC loads.

Mutual power transfer between series storage elements replaces resistive discharge and bulky insulation transformers, cutting size and loss.

A parallel protection branch with Schottky diodes, auxiliary switches, and capacitors diverts short-circuit current without adding normal-operation loss.

An input voltage cancellation circuit decouples high supply voltage from input amplitude, cutting component stress and voltage rating cost.

Separating ramp and feedback paths stabilizes constant on-time power converters while avoiding error-amplifier input offset.

Counts clock cycles over each switching period and compensates leakage current to measure low load current more accurately.

Interleaved boost phases split inductor current to ease thermal limits, cut EMI, and raise power delivery with fewer switches.

Primary winding voltage feedback corrects transformer magnetic bias by adjusting PWM duty cycle, avoiding added capacitors or current sensors.

Parallel DCM phases with staggered charge and discharge timing cut output voltage ripple while avoiding extra capacitance or complex control.

A control circuit dynamically adjusts overvoltage protection thresholds based on primary current peaks.