Dc-Dc Conversion TRIZ Cases

A secondary current loop and switchable current source limit output overvoltage when a buck converter terminal becomes disconnected.

An auxiliary inductor winding feeds input-filter voltage across isolation to damp DC-DC converter oscillations without added damping parts.

An LCR parallel resonance circuit adds a gain peak at LC resonance to offset regulator gain dips and keep the power filter loop stable.

A flyback transformer and rectifier monitor high-voltage DC bus levels with galvanic isolation, lower EMI, and reliable aerospace motor drive sensing.

An inversion-layer capacitor integrated beside a MOSFET cuts parasitic gate-drain capacitance while preserving breakdown voltage and low switching loss.

Lowest-cathode-voltage feedback stabilizes multi-channel LED output and adds overcurrent, overvoltage, and short-circuit protection.

Adaptive overload control switches between latch stop and timed restart to stabilize output voltage and reduce restart-related wear.

Voltage-threshold control routes DCDC current to under-supplied SoC loads and adds regulator support only when needed to cut oversizing losses.

Output voltages are adjusted at constant power to keep neutral wire current within cable limits without reducing energy yield.

Inductor current direction sensing stops switching and discharges residual current to prevent power-off instability and PMIC damage.

Dynamic period updates keep multi-phase converter signals near a target phase shift, cutting output ripple during frequency changes.

A combined step-up, step-down, and direct-coupling layout supplies the right voltage to heater, display, and vibration loads in one aerosol device.

A stepped voltage-drop protection circuit blocks fault current in a flying-capacitor DC-DC converter, protecting lower-rated switches.

Real-time voltage and current feedback lets the converter adjust target output voltage to match load changes and cut power waste.

A transformer and rectifier convert high-voltage pulses directly to a DC rail, cutting PCB space and thick copper power layers.

Adaptive current thresholds based on AC voltage level limit inductor surge current at startup and protect the power transistor.

An integrated bus-duct capacitor module with upper and lower coolers handles high current while reducing PTU size and capacitor heat.

An auxiliary inductor winding feeds input-filter voltage across isolation, damping DC-DC converter oscillations without added size or cost.

A programmable controller coordinates isolated DC-DC gate-drive supplies for tunable voltage regulation, sequencing, and fault monitoring.

A state-aware ON-timer switches between variable and fixed reference voltages to keep DC/DC converter switching frequency more stable.

Programmable control of isolated motor drive power rails adjusts switching behavior to improve EMI compliance while maintaining output voltage.

Dynamic switching control shifts EMI peaks in isolated motor-drive DC-DC converters while maintaining precise output voltage.

Stored energy drives the bypass switch when self-supply voltage drops, preventing chattering and speeding failed cell converter short-circuiting.

A diagnostic current and bidirectional rectifying path expose IC ground-line openings reliably despite load changes or stopped drive circuits.

A driver-controlled ramp switch blocks ramp injection during DCM tri-state, eliminating group pulsing and reducing ripple in COT buck regulators.

Clock-disable detection shuts down PMIC switching during display blanking periods, reducing unnecessary power conversion and energy waste.

A current-limiting charging circuit keeps switching frequency within safe bounds when an external resistor shorts or opens, improving converter stability.

A negative inductance circuit varies transformer inductance to cut SMPS ripple at steady state and speed transient response.

A vacuum diode, ceramic coatings, and a parallel magnetic field replace switching circuitry to cut AC-DC conversion losses.

A separate over-voltage terminal backs up feedback sensing, letting the regulator reset the controller or power down before damaging over-voltage.

Inherent inductors balance dual bus capacitor voltages in a DC/DC converter, avoiding extra balance circuits and preserving power density.

Synchronized PFC and regulator stages cancel high-frequency ripple while preserving power factor and allowing smaller capacitors in LED drivers.

An integrator-derived pseudo-output voltage lets a switching regulator detect input-output voltage differences without an output sensing terminal.

A resistor between converter ground terminals damps parasitic oscillations, enabling shorter duty cycles and lower output voltage.

Multiple Boost and Buck operating modes balance positive and negative bus voltages under half-wave loads without extra balance circuits.

A mode-switching totem-pole DC-DC converter widens input range and boosts reverse voltage while reducing size and cost.

Closed-loop current limiting and input filtering protect small batteries from DC-DC converter peak currents without bulky capacitors or resistive loss.

A programmable FPGA or MCU monitors output voltage and can take over PWM control to improve converter health monitoring and EMI control.

Switching to off-time based current limiting reduces inductor ripple and prevents low-frequency battery voltage swings in CCM boost converters.

Partial-power DC-DC stages with galvanic isolation cut PV grid-link losses while preserving flexible MPPT and long-line energy yield.

Crack-free laminated magnetic thin strips in the inductor cut loss and ripple while keeping inductance and DC superimposition in a compact DC-DC converter.

A BOOT-to-SW voltage comparison detects bootstrap undervoltage and immediately turns off the high-side switch without extra level shifters.

A grounded Y-capacitor divider suppresses EMI while removing high-voltage nodes near the controller IC to prevent humidity leakage.

Independent energizing and de-energizing duty cycles cut freewheeling time and improve buck-boost driver linearity and efficiency.

Delayed negative bias switching keeps gate-source voltage within safe limits to prevent false turn-on and cut switching power loss.

A dual temperature-sensing IC reuses a resistor terminal to switch between internal and external detection, preventing power supply overheating.

A dynamic pulse-skipping threshold tied to PWM duty ratio improves mode entry accuracy across varying voltages while cutting switching loss.

Parallel multi-phase converters enable arbitrary phase interleaving, cutting circuit cost and output voltage ripple in voltage regulators.

Feedback-based stage switching blocks transient enable or disable events, preventing surges and preserving 180-degree phase balance.

Low-voltage switching injects opposing ripple signals to suppress converter EMI while cutting filter size and standby power use.

A separate suppression buck stage cancels N-th harmonic currents, reducing ripple without larger inductors, added phases, or more board area.

Slope-compensated emulated phase currents enable fast balancing and synchronization in multi-phase regulators during load transients.

Ripple injection on the feedback loop improves light-load output voltage accuracy and load response without a correction circuit.

Adaptive off-time sampling tracks the zero-current point on an auxiliary winding to improve isolated output-voltage feedback accuracy.

Cycle-based inductor charging set from total load current helps a SIMO DC-DC converter limit cross-regulation without added size or efficiency loss.

Electrically coupled output inductors let each phase induce the other, boosting current slew rate and transient response in transformer step-down power stages.

Two DACs and an analogue differential integrator replace a fast high-resolution DAC, improving PCM control stability with simpler layout.

A combined TVS and Schottky junction clips voltage spikes while blocking forward-bias current that would otherwise disrupt normal circuit operation.

A high-pass filter detects dead-time switching transients so the secondary switch closes sooner, cutting body-diode loss in DC converters.

Dual-mode low-side current detection limits high-side and low-side current during output short circuits without relying on the main feedback loop.

A masking circuit compares input and output voltages to avoid false short-circuit trips and keep buck power supplies operating through input swings.

Soft-switching buck inverter topology cuts switching losses, shrinks inductors, and enables reactive power flow in grid-connected use.

Auxiliary winding feedback improves output current regulation in power converters while stabilizing switching cycles and preventing over-voltage.

Floating-capacitor voltage control stabilizes a hybrid cascaded multilevel inverter while cutting converter count, size, and cost.

An NTC-compensated integrator and amplifier circuit measures bidirectional choke current accurately while avoiding offset distortion and temperature drift.

A cascode GaN HEMT with tuned AlGaN layer composition cuts on-resistance temperature drift and current collapse while enabling normally-off switching.

Isolated DC-DC stages use resonant leakage inductance and voltage multiplication to lower transformer turn ratio, size, and device stress.

Movable parallel capacitor plates raise voltage by increasing separation while a bidirectional DC-DC converter manages charge transfer and output.

A switch-and-diode split-source inverter boosts fuel cell DC-link utilization while lowering switch voltage stress in grid conversion.

ADC-based digital feedback replaces complex analog loops to stabilize multi-phase voltage regulators and simplify current sharing.

Dynamic voltage prediction adjusts converter output to match impedance-driven stimulation demand, cutting power loss and extending battery life.

A coupled inductor and synchronous rectification let a buck regulator shift energy between outputs, enabling large step-down and flexible power priority.

Dynamic slew-rate selection smooths voltage transitions to avoid overshoot and undershoot while supporting multiple power protocols.

Source follower input stages and a common gate gain stage speed regulator startup while reducing overshoot, transients, and quiescent current.

Using the converter output in a passive ramp generator improves buck converter transient response while lowering power consumption.

An adaptive opposite-phase coil current cancels switching regulator output ripple without degrading switching frequency behavior.

A compensation circuit boosts low mains input by combining DC-to-AC output with line power, reducing UPS size and transformer cost.

A dual-loop controller keeps converter switching frequency within set bands to cut low-load noise and ripple while preserving efficiency.

A three-stage gate slew-rate control scheme cuts high-side switch ringing and voltage stress in switching converters while preserving fast turn-off.

Counting resonance turning points after a load-based blanking interval helps stabilize multi-level output voltage across varying loads.

A programmable voltage window lets the converter bypass switching near VIN-VOUT crossover, cutting losses, noise, and component stress.

Driving a MOSFET in linear mode smooths LED startup current during power switching, preventing false overload detection without extra hardware.

By blocking reverse current during free-wheeling, the rectifier cuts light-load switching loss and helps protect MOSFETs from hard switching.

A boost compensation circuit adapts crossover frequency to right-half-plane zero shifts, reducing tracking error while preserving transient response.

A clamp, current detection, and current limiting scheme prevents false turn-on and safely interrupts overcurrent in pulse-transformer SiC MOSFET drives.

Adaptive dead-time control with voltage clipping enables reliable zero-voltage switching in GaN DC-DC converters at high frequency.

Separate current sensors detect imbalance across parallel switches, allowing the controller to identify failures and protect the junction box.

A regulated drive-sense circuit matches load impedance to detect current changes accurately while reducing line interference in sensor links.

A current-dependent compensation inductor lets a TLVR keep low ripple and accurate current reporting while improving transient response.

Reverse-series submodule testing emulates rectifying and inverting modes together while feedforward compensation suppresses pulse interference.

Phase-shift modulation balances flying-capacitor voltage to cut switching and conduction losses while reducing switch stress.

A shunt switch temporarily shorts the LCC resonant circuit to extend LED dimming range while avoiding current overshoot, ripple, and flicker.

Output-current-based gate-drive voltage adjustment and charge recovery cut switching-converter power loss without added control complexity.

Charging current feedback lets the control module adjust boost voltage in real time, improving bi-directional battery charging efficiency.

A capacitor and inverter boost circuit adds delta voltage during memory writes, overcoming bit line resistance without raising overall supply voltage.

A secondary-side active clamp captures leakage-induced spike current in a clamp capacitor, limiting voltage excursions and enabling lower-voltage transistors.

Variable on-chip capacitance tracks switching frequency to keep DC-DC converter output stable with lower transients and no external compensation parts.

Transient events are handled by reshaping regulation control parameters over time, avoiding costly frequency detectors and abrupt converter response.

A common-cathode diode discharge path lets multi-output capacitors discharge without forward-voltage buildup or output voltage reversal.

An in-phase control voltage and low-pass filtering cut AC/DC output ripple and current oscillations while supporting power factor correction.