Dc-Dc Conversion TRIZ Cases

Direct comparator feedback and demagnetization-based reference timing improve LED constant-current accuracy, especially at low brightness.

An MCU limits boost-converter duty cycle and adds compensation current to prevent oscillation while sustaining higher output power.

Phase-offset control uses inductance estimates from voltage and current sensing to cut DC-DC converter heat while maintaining target power transfer.

Current-based mode switching adjusts phase angle and switching frequency to stabilize MPPT and improve photovoltaic power extraction.

Alternating constant-voltage and constant-charge phases stabilizes piezoelectric converter output during rapid load changes without large filter capacitors.

Current diversion and voltage clamping let MEMS rectifiers switch at zero voltage and current, cutting AC-DC conversion loss and stress.

Measured transformer leakage inductance lets a dual active bridge adjust ZVS and gain scheduling for better efficiency and voltage accuracy.

A resistor-decoded clock and count circuit selects multiple output voltages from one terminal, expanding IC functions without extra pins.

Intermittent switch-off and guided current burn out a faulty parallel semiconductor switch, letting the converter resume operation.

Adaptive slew-rate control cuts transistor stress and switching losses in switching regulators during input and load transients.

Low-side switch sensing and voltage-based estimation replace high-side shunts to improve current accuracy, efficiency, and reliability.

A simulated PV curve with voltage-limiting and constant-power sections keeps shaded photovoltaic strings from dropping to zero power.

By discharging and regenerating capacitor energy before series reconnection, the converter avoids voltage spikes and load interruption.

A two-stage isolated DC-DC converter uses high-frequency AC and multi-level conversion to support wide EV battery voltages with fewer high-voltage switches.

Fast current sensing and narrow-pulse control stabilize MR pulsed-load voltage while reducing capacitor size, volume, and cost.

Filtered feedback and auxiliary current control stabilize CC/CV transitions and prevent current undershoot during power-off.

Dynamic DC-DC setpoint control shifts load to cooler, higher-SOC converters to prevent low-voltage failures in EV energy storage.

Voltage comparison detects whether an inductor is present, letting the circuit switch between DC-DC and LDO modes without manual setup.

Switch-node voltage feedback adjusts high-side on-time in AHB converters to achieve full ring valley switching and cut losses and EMI.

A controller senses overcurrent and sequences high-side switch states to discharge the resonant capacitor while keeping the regulator within SOA.

Time-multiplexed secondary switch control lets one transformer regulate multiple output voltages with less space, cost, and conversion loss.

Dynamic ramp reordering balances phase currents during load transients, reducing thermal stress and premature shutdowns in multiphase converters.

Input-series, output-parallel hybrid converters use balancing control to correct mismatch-driven current imbalance and keep efficiency stable.

Combining local and remote voltage sensing cancels the output LC double pole, preserving DC-DC converter bandwidth, phase margin, and transient response.

BJT and Darlington shunt modules divert excess current to hold load voltage steady in long-distance power transfer systems with easier maintenance.

Dual DC/DC converters and an ultracapacitor adapt power from real-time voltage and current feedback to keep critical vehicle loads stable.

Selective coupling of two transformer secondary inductors expands bidirectional DC-DC voltage range while maintaining efficient battery charging and load supply.

CAN bus voltage sharing lets a new parallel boost converter soft-start to bus voltage, preventing backfeed damage during hot-plugging.

A controlled discharge switch rapidly pulls down PWM transitions, shortening high-side conduction time and preventing damaging output overvoltage.

Shared interleaved DC-DC and transformer stages power 12 V and 24 V auxiliary batteries while cutting heavy-duty EV converter weight, volume, and cost.

Threshold-based dual-loop control disconnects full-bridge modules at low current to stop battery charge-discharge cycling and negative current.

A switchable RC snubber on the transformer secondary damps off-time resonant currents in PWM-dimmed isolated LED converters.

A simulated PV curve with voltage-limiting and constant-power sections lets inverters keep MPPT control without zero-power drops.

CAN bus voltage sharing lets a hot-plugged parallel boost converter soft-start at bus voltage, preventing backfeed damage and extra circuitry.

Adaptive DC-DC conversion matches harvested smart card voltage and current to circuit needs, enabling faster transactions and longer read distance.

Input-series, output-parallel hybrid converters use voltage balancing and duty-cycle control to stabilize current sharing under tolerances and load transients.

Inductor current direction sensing stops switching and discharges residual current during fault events to prevent PMIC overheating and damage.

Current sensing through a resistor replaces capacitor-compensated voltage division, preserving switching detection accuracy in a smaller gate drive circuit.

A charge-pump capacitor enables bipolar output from a unipolar power converter, cutting DC leakage, power use, and interference.

Adaptive and harmonic zero-sequence voltage compensation suppresses active power backflow during grid short-circuit faults.

Independent comparator feedback controls boost and drive voltages to replace bulky high-voltage parts and keep output precise across conditions.

A stacked core combines transformer and inductor functions to shrink voltage converter size while improving heat dissipation and power density.

Distributed controllers use a shared clock and transformer-coupled ports to match supply and demand timing and prevent power mismatch damage.

Programmable DAC-based droop voltage generation expands load line resistance range and accuracy for stable switching power supply output.

Vertical core stacking with opposite adjacent winding currents improves flux distribution, cuts eddy losses, and shrinks DC-DC converter magnetics.

Linear regression links feedback ports or cable resistance to the right DC output, keeping radio-end voltage stable despite wiring errors.

A single level shifter and drive strength control circuit adjust turn-on and turn-off drive strength to cut ringing, area, and cost.

A switchable error amplifier enables or disables load-line feedback, improving output voltage response and accuracy during load changes.

By adjusting converter off-time from input ripple, this circuit prevents SMPS start-up undervoltage with high-impedance power sources.

Inverse VCO-based switching control boosts low-voltage output power while limiting high-voltage over-power in isolated resonant half-bridge converters.

A polarity detector and controller open the circuit breaker on reverse secondary DC connections, preventing converter damage without keyed connectors.

Output-capacitor precharge buffers transformer energy release in a full-bridge converter, cutting voltage stress on power switches.

A three-port rectifier-battery layout avoids direct load parallel connection, cutting battery cycling and stabilizing DC output.

Ramp compensation limits signal difference in COT SMPS control, stabilizing low-ESR output capacitors during load jumps.

A duty-cycle-based current threshold keeps converter output current stable, preventing overload and avoiding unnecessary power dissipation.

Two converters independently regulate series capacitors on a split DC bus, suppressing voltage unbalance without a separate balance circuit.

A shared PWM and linked ISHARE pins let each power stage balance phase current locally, cutting controller pins and PCB routing complexity.

Analog on-time extension gates switch-off control to hold output voltage steady as battery input drops and load conditions vary.

A charge pump sustains gate leakage current in a high-voltage startup regulator, cutting pull-up resistor loss and widening input range.

Modified H-bridge switching limits fault current into a DC network while still enabling isolation and capacitor recharge.

Measured inductor current timing guides buck, boost, and buck-boost transitions to improve efficiency at converter boundary conditions.

Timed high-side switch control avoids lossy linear operation when input exceeds output, improving down-mode stability and efficiency.

Corrected current-based droop control lets parallel DC converters share load reliably without converter-to-converter communication.

Hysteresis comparison and timed reset suppress second-coil voltage variation, preventing detection and switching malfunctions.

A buck-boost stage regulates transformer auxiliary winding voltage to a fixed controller supply across 5V to 48V output ranges.

Series-connected MOSFETs in a cascode buck output stage share blocking voltage, cutting RDSon and gate charge losses while maintaining breakdown capability.

An emulated slope signal calibrates PFM converter comparators to correct switching errors from process variation and DC offset, improving efficiency.

Filtered low- and high-frequency current sensing balances parallel power stages, improving efficiency and preventing over-current damage.

A DLL-based analog reference generator helps distributed LDO clusters cut IR dropout and regulator overhead in processor power delivery.

Adaptive frequency modulation spreads switching energy across nearby bands to cut DC-DC converter EMI peaks without larger filters.

Mode selection using on/off-time thresholds smooths Buck, Boost, and Buck-Boost transitions to stabilize output voltage and cut losses.

Active midpoint voltage control in a bidirectional isolated CLLC converter helps interface low-voltage systems with high-voltage DC buses while managing partial discharge hazards.

Startup begins with primary-side regulation, then switches to secondary-side regulation to prevent isolated converter output overshoot.

An auxiliary bias sensor detects input power from energy transfer feedback to bypass unnecessary converter stages and improve low-load efficiency.

Using existing auxiliary resonant hardware, this ARCP converter balances DC-link capacitor voltages while cutting switching losses and EMI.

Real-time bus voltage interval mapping adjusts adapter output power to cut loss and avoid wasted charging capability.

An auxiliary winding integrated into the medium-frequency transformer delivers insulated control power without large external converters.

Rectified switching peaks power an HV flyback protection circuit that senses faults and rapidly disconnects 800 V overcurrent or overvoltage.

Adaptive filter inductance keeps converter switching frequency constant while preserving soft switching, reducing EMI and easing paralleling.

Controlled transistor switching limits DC fault current while preserving fault discrimination and keeping healthy network sections operational.

A dual-core magnetic path limits rapid shoot-through current rise through polarity alignment and opposition, protecting circuit components.

Counts power-switch control pulses instead of using detection resistors, enabling accurate load power evaluation with simpler circuitry.

Unused converter phases are reassigned to high-current rails, meeting variable voltage demand while saving chip area in multi-phase power designs.

A configurable M-level buck converter switches all transistors at high current and deactivates many at low current to cut charging losses.

Comparators detect IP supply-voltage mismatch and trigger supplemental power only where needed to keep SoC operation stable and reliable.

A transformer-isolated monitoring channel detects output overvoltage and shuts down the converter without complex optocoupler protection circuits.

A modular inverter with bidirectional DC terminals serves EV chargers and other loads without breaker panel upgrades, easing space and cost limits.

A frequency-selective passive damping circuit on a common mode transformer suppresses sub-1 MHz resonance without extra filter stages.

Hysteretic pulse control keeps switching power supply voltage and current within thresholds for faster transient response and simpler magnetic design.

Reverse current detection and offset correction improve light-load switching power supply efficiency by suppressing reverse current losses.

Current-sensed PWM control raises pull-up switching frequency under heavy load to stabilize a small-inductor buck converter and limit ripple.

Current-direction-based phase sequencing regulates buck and boost output voltage while avoiding transition mode and high current peaks.