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.