Dc-Dc Conversion TRIZ Cases

A control circuit switches between DC/DC and LDO supply paths to match memory load states, improving conversion efficiency and lowering static power.

Real-time string current detection adjusts MLPE photovoltaic string voltage to keep backflow current within a safe range without extra hardware.

A parallel voltage adjuster with a diode and regenerative DC supply holds fuel cell bus voltage at target levels without a storage battery.

A third switching element and capacitive coupling let a two-phase buck converter avoid negative inductor current and ease high-side timing at low load.

Asymmetric core gaps and inner-coil selection cut ripple current and switching losses in one-phase operation of a three-phase coupled reactor.

Independent voltage and current duty loops widen converter control bandwidth, improve transient response, and prevent overcurrent.

A dual-mode pre-regulated push-pull converter keeps input current continuous to cut EMI and suppress voltage spikes across a wide input range.

Automatic switching between voltage regulation and overcurrent protection cuts quiescent loss while keeping output voltage and current stable.

A correction module applies a second-order formula to stabilize isolated-converter load current sensing across changing load voltages.

Adaptive on-time control adjusts switching periods from input and output voltages to keep inductor charge delivery steady and cut ripple.

Multiple power conversion blocks share a common output by voltage and current thresholds, improving efficiency across changing loads without costly load balancers.

An open-loop current comparator uses low-threshold MOSFETs and self-biasing to sense inductor current faster with lower quiescent power.

Removing leakage structures and tuning rail-to-connector core area improves coupling, cuts ripple, and boosts transient response.

A parallel boost path stabilizes control-unit voltage during battery drops, avoiding costly low-Rds(on) MOSFETs and limiting current draw.

Waveform bias analysis locates open-circuit transistor faults in three-phase DAB converters using logic-based diagnosis and low-bandwidth sensors.

Parallel RC networks realign AC voltage and current phases to reduce reactive power waste and improve usable power in HVAC and refrigeration systems.

A power switching circuit lets one input device convert and pass voltage to another, simplifying multi-device connections and cooperative use.

Independent output and feedback voltage checks keep overvoltage protection active when divider resistors fail or feedback thresholds become abnormal.

Adaptive intra-bridge phase shifting uses output-voltage feedback to extend zero-voltage switching in dual active bridge converters.

A backup voltage-dividing feedback path limits overvoltage when an optocoupler fails, protecting switching power supply components.

A resistive divider and voltage reference back up optocoupler feedback to stop overvoltage and protect switching power supply components.

Different feedforward gains during bus communication stabilize LED current against supply voltage dips and reduce visible flicker.

Selective XFTE tuning raises variable-frequency PWM bandwidth while preserving stability, noise behavior, and consistent power delivery during transients.

Series-parallel secondary winding control expands DC-DC converter output voltage range while maintaining constant power and high power density.

A switched DC-DC converter and auxiliary LDO stabilize node voltage and cut ripple without increasing load capacitor size.

Detecting load transient frequency lets a voltage regulator adapt controllable circuit behavior and improve response across difficult frequency ranges.

Converter voltage limits scaled to each module’s open-circuit voltage improve PV string efficiency while preventing inverter overvoltage.

A dedicated low-power trickle charger cuts partial-load losses by bypassing oversized converters when charging the DC supply.

A resistor-switched precharging loop limits switch-on current in parallel commutation cells, cutting losses and board space in grid feedback units.

A voltage-threshold startup scheme delays the BUCK stage until the isolated DC-DC loop closes, enabling stable LED constant-current drive.

Automatic phase scaling predicts DVID inrush current and adjusts active regulator phases to cut slew-event power loss and battery drain.

Uses a parallel sensing transistor and terminal voltage difference to measure bidirectional current in DC-DC converters without high-voltage exposure.

A dual-rectifier chime circuit selects the usable AC current direction, simplifying smart doorbell installation without rewiring.

Duty correction from flying-capacitor voltage error and ripple keeps multilevel converters stable while limiting voltage stress and subharmonic oscillation.

Three comparators and hysteresis-controlled power transistors cut LDO ripple and switching power under low-voltage DRAM loads.

Current-based delay tuning keeps high-side and low-side drive pulses from overlapping, preventing crowbar current without long dead time.

A magnetically coupled phase-shift filter stabilizes self-excited DC/DC converter output while reducing FET loss and waveform abnormalities.

Asynchronous sampling near output-current zero crossing avoids drive-current noise and improves LED voltage feedback accuracy.

A voltage-triggered dissipation path cuts buck output overshoot and settling time during extreme load transients, reducing nuisance fault trips.

Dual H-bridge switching with transformer coupling enables flexible bidirectional power transfer between high- and low-voltage batteries.

A switched RC slope compensation circuit tracks ripple slope to suppress sub-harmonic oscillation in power converters without slowing transients.

Threshold-based duty switching stabilizes transformer output voltage changes, cutting ripple and switching power loss in image forming.

Bias current that tracks inductor current helps a power converter stabilize output voltage during load transients without overly complex control.

A timed voltage pulse and current threshold check detect soft inductor shorts early in switching converters, helping prevent overcurrent damage.

A three-coil axial layout places the highest-power coil next to the high-voltage battery coil to improve magnetic coupling and cut leakage inductance.

Encoded fault notifications identify which power converter failed in multi-phase VRD designs, reducing extra status queries and fault-handling code.

Adaptive ON-time control uses OFF-time indication and a WAKE signal to regulate isolated converter output voltage with less signal-coupling circuitry.

A self-feeding converter circuit detects current-limiting resistor overload from switch control signals, preventing overheating without temperature sensors.

Interleaved control modules sequence converter phases to share current, shrink output inductors, and improve chip pin use.

A booster charges a supercapacitor from a low 24V battery pack, then switches power to start the vehicle control device reliably.