Dc-Dc Conversion TRIZ Cases

A current distributor and external resistor split power dissipation to cut heat in load drive circuits and fit compact PCB modules.

Active ripple cancellation current suppresses all frequency components in a power converter, reducing bulky noise filters, weight, and cost.

A detector and controller reconfigure SMPS phases when inductors are missing, preventing overcurrent crashes and exposing defects early.

Past-cycle current-to-duty mapping compensates detection errors in discontinuous-mode DC-DC converters for more precise switching.

A distributed DC-AC control loop cuts delay in multiphase converters, improving transient response and lowering output impedance with fewer capacitors.

A molded magnetic structure encloses a packaged device and coil to save board space, support high-voltage operation, and simplify assembly.

Active current generation and voltage control limit DC-DC converter peak draw, protecting small batteries without large capacitors or resistive loss.

Selectable sensing resistors and feedback keep LED pulse current and voltage precise across wide ranges while limiting heat and overdrive.

Rectifying voltage from the series transistor switch node charges an auxiliary capacitor, cutting gate-drive power loss while limiting overvoltage.

When one DC-DC phase fails, the control unit retimes the remaining converters to maintain output voltage and avoid sudden shutdown.

Current-duration monitoring across converter phases detects faulty switching circuits quickly while supporting reliable operation under varying modes.

Bandpass-filtered auxiliary loop control cuts DC ripple in bidirectional AC-DC converters without adding bus capacitance or control complexity.

Non-complementary rectifying-switch timing cuts LED driver conduction losses while preserving boundary conduction mode at low output voltages.

A merged boost-SEPIC topology generates regulated and summed low-voltage outputs from battery input, avoiding lossy cascaded LVPS stages.

Redundant ISOP submodules let a DC-DC converter keep supplying electrolysis loads after a submodule failure while reducing semiconductor stress.

Two transistor switches with analog feedback limit bidirectional peak and short-circuit currents without replaceable fuses, reducing wear.

Carrier-synchronized voltage and current detection lets a chopper change switching frequency without increasing ripple while minimizing circuit loss.

Parallel old and new battery racks use controlled low-capacity voltage conversion to handle impedance imbalance with less heat, cost, and space.

Specific phase-angle offsets across converter arms interleave current peaks and valleys to suppress total input ripple in flying capacitor converters.

Current sensing and comparator switching let a buck-boost converter track inductor current in pass-through mode and prevent overcurrent damage.

Peak and valley inductor current control helps a buck converter recover output voltage quickly during sudden load drops while limiting damage risk.

Two auxiliary winding-regulator paths cut voltage drop and power loss while extending primary-side controller supply range for USB PD 3.1.

Drain-source voltage detection triggers early MOSFET turn-on during dead time, cutting reverse-current loss in high-frequency power conversion.

Dynamic duty-cycle and feedback-frequency control limit output current at low output voltage, protecting isolated converters from overload damage.

A primary-side regulator shifts switch timing with injected current to stabilize flyback output while cutting opto-isolator cost and parasitic capacitance.

Current mirrors and a pole adjuster shift the dominant pole to cut control-circuit current loss while keeping flyback regulation stable.

Specific phase-shift PWM angles interleave arm current peaks and valleys, cutting total input current ripple in flying capacitor converters.

Temperature- and current-based mode switching lets a PV power converter enter buck, boost, bypass, or shutdown states to cut heat and power loss.

Dual-gate transistors with loop and sampled-reference control raise PSRR across a wide frequency range and cut image-sensor row noise.

Cross-loading the inner phase-shift angle at rising and falling edges balances bias magnet current and protects the transformer under extreme conditions.

Low-common-mode vector selection and duty-cycle updates let coupled three-level inverters suppress harmonics under unbalanced capacitor voltages.

Valley-based current limit adjustment helps a primary-side power converter regulate output voltage and cut conduction loss in DCM and BCM.

Switch-node voltage sensing controls boost-switch cycling to prevent inductor current runaway while avoiding extra pins and quiescent loss.

Replica current sense paths enable in-situ calibration of a multiphase converter, improving current accuracy without resistor heat loss.

Alternating top and bottom buck phases regulate the junction node to cut output ripple, EMI, and inductor ESR losses in stacked DC-DC conversion.

A voltage-dependent one-shot control circuit keeps inductor ripple current stable at higher output voltages without larger inductors.

When gate driver supply voltage drops, this shutdown circuit pulls the transistor gate to a safe off state to prevent unintended turn-on and damage.

Separate master-to-slave clock paths help identify faulty controllers in a multiphase power supply while keeping phase timing synchronized.

Variable control-voltage deactivation cuts switching losses while limiting current ringing in power supply switches.

Phase-shifted primary and secondary switching enables direct transformer power transfer, reset without extra switches, and lower conduction loss.

Multiple output control transistors regulate separate voltages from one conversion circuit, cutting two-stage cost and energy loss.

Measures DC-DC converter inductor current by sensing transistor on-phase current and dividing by real duty cycle to avoid dead-time errors.

Current and voltage threshold checks detect faulty output sensing during startup and shut down the converter before load overvoltage damage.

A transistor, diode, and output capacitor limit startup current while avoiding resistor overheating and extending component life.

A transverse winding tracks voltage-slope sign changes to detect core saturation early and protect power converter components.

Dynamic hysteresis limits and mode switching keep converter frequency consistent while reducing output ripple and EMI.

A shared control and sensing pin lets a power converter detect output voltage and switch safely while reducing controller pin count and size.

Correction based on photocoupler transfer ratio improves isolated voltage and current detection for balanced parallel power converters.

By comparing output current with low sensed voltage during startup, the control circuit detects sense-line faults and shuts down the converter before load damage.

Masking parts of a converter switching signal suppresses PCB parasitic-capacitance resonance between shared-node converters and cuts output ripple.

Multiple Zener error paths reshape peak-current sensing in SEPIC and boost converters to keep output current near-constant across input voltage.

Replica bipolar transistors feed base currents into the core to cancel β-drift, improving bandgap voltage and PTAT current stability over time.

A circuit breaker at the arm midpoint protects an HVDC DC/DC converter from overvoltage while reducing submodule count, losses, size, and cost.

Selective crystal defects in active MOSFET regions cut reverse recovery charge while suppressing oscillation from rapid current decay.

Embedded output capacitors in a stacked power module cut footprint and conduction loss while improving heat dissipation for GPU and CPU loads.

Varying source segment counts across a buck converter MOSFET layout preserves snapback breakdown voltage without raising on-resistance.

Phase-specific ramp-down voltage and capacitor tuning correct full-cycle inductor current sensing errors in switching regulators.

A three-phase interleaved resonant converter cuts EV charger ripple and uses direct resonant-current sensing for fast overcurrent protection.

Using three switches to independently drive bipolar transistors, this case improves flyback converter efficiency and higher output power handling.

Threshold-based switching frequency adjustment prevents transformer saturation under load shifts while limiting converter temperature rise and loss.

Magnetically coupled phase-shift control stabilizes DC/DC converter output while reducing reactive current and FET loss.

Distinct terminal voltage states let the IC identify isolated or non-isolated power supplies and avoid misdetection from coupling failures.

Maintaining phase offsets between converter phases cuts core current ripple, balances average current, and reduces energy loss.

An auxiliary winding, rectifier, and controller detect abnormal bulk voltage early to trigger over- or under-voltage protection.

Feedback control detects transient load demand and adjusts main and auxiliary supply output to stabilize series-load voltage with less capacitance.

A mobile charging IC switches between direct and switching chargers to speed CC charging, hold battery voltage, and prevent overcharging.

Controller logic checks power supply ID signals before enabling buck-boost converters, blocking untrusted hot-plug supplies from harming devices.

Using OTAs and one central trimming capacitor, this DC-DC error amplifier simplifies pole-zero tuning across switching frequencies and loads.

Isolation terminal biasing in stacked transistors reduces deadtime substrate injection, limiting overvoltage stress while preserving DC-DC efficiency.

A switched resistor-divider and single comparator track input voltage in one clock cycle while cutting area, power, and mismatch.

A diode bypass path and switch route reverse-connected current away from the power circuit, cutting loss and protecting the switch.

An inductor current emulator adapts peak current to input voltage changes, cutting switching loss while keeping buck converter ripple stable.

Adaptive high-impedance timing and slope-compensated valley current control keep buck converters stable and efficient at low load currents.

Multiple buck stages share one boost inductor to regulate each PV module near its maximum power point with lower converter complexity.

Bus-voltage-based duty compensation suppresses transformer bias magnet in DC-DC converters without adding DC blocking capacitors.

A current stabilizing circuit and spread-spectrum frequency control cut DC-DC converter noise to meet CISPR 25 class 5 EMC limits.

A single-transformer bipolar startup stage lets a TEG self-start from very low positive or negative voltage and then switch to regulated flyback charging.

Dynamic buck duty-cycle control balances dual-output voltages under unequal load demand, improving fuel cell DC-DC converter stability and efficiency.

Periodic reset and positive-feedback latching cut comparator current while preserving precise analog timing detection in oscillators and power converters.

Variable switching frequency and a current stabilizing circuit spread DC-DC noise peaks, helping in-vehicle power supplies meet CISPR 25.

Adjusting inverter duty cycle from rectified mains voltage keeps welding output stable across wide AC input variations without a regulated DC bus.

MOSFET-based synchronous rectification recirculates current between split rails to curb rail pumping, cutting losses and semiconductor stress.

Voltage-slope sensing and NTC temperature feedback limit magnetizing current before transformer saturation causes safety and reliability issues.

A programmable divider plus min/max frequency limiting keeps a boost clock synchronized to the buck clock without under- or over-boosting.

Threshold-controlled dual regulators replace RC timing to keep power-on and power-off sequencing stable despite environmental changes.

An error amplifier and current-based reference improve COT converter transient response, helping stabilize output voltage under line and load changes.

A dual-input current distributor adjusts current ratio by terminal-voltage difference to cut heat and stabilize power in compact load drivers.

Dynamic switching-frequency and on-time adjustment stabilizes converter output during steep load transients while reducing noise and switching losses.

An internal output-voltage simulation circuit replaces external resistor dividers to improve switching-converter overvoltage protection reliability.

Pulse-width-based VTC and TIC control helps an LDO hold output voltage during abrupt or light-load changes while reducing headroom.

Monotonic frequency stepping with error-amplifier compensation cuts switching spurs and harmonics while preserving stable high-current regulation.

A flux correction current cancels transformer core flux, improving load transient response and voltage regulation with smaller magnetic cores.

A galvanic link shifts power-supply feedback from voltage mode to current mode, cutting high-frequency noise and stabilizing control signals.

A delay circuit compensates for internal PWM comparator latency, eliminating duty cycle restrictions at high switching frequencies.

A gain factor dynamically scales hysteresis trip points based on ripple voltage, maintaining stable switching frequency under variable load conditions.

An integrated circuit adjusts switch conduction time based on internal current sensing to regulate power supply output.

A compensation circuit uses a delay circuit and voltage-current conversion to generate a signal that regulates output voltage.

Shared high voltage rails with on-die regulators enable fine-grained power management, reducing pin counts and thermal load.