Dc-Dc Conversion TRIZ Cases

A variable-time-constant filter adapts to buck and boost modes to suppress shunt-voltage noise, avoid subharmonics, and keep current control stable.

Automatic mode selection uses switching time durations to shift between buck, boost, and buck-boost modes for stable output and lower ripple.

A double-bridge UPS uses a shared transformer, inductors, and phase-shift control to charge the DC source without a separate charger.

An isolated driver-voltage circuit rapidly discharges pump diode charge to shut down fiber laser radiation within 50 ms without mechanical shutters.

Measured line-to-line DC offsets drive duty cycle compensation in a dual-active-bridge converter to limit transformer saturation and heat.

A two-stage AC-DC architecture replaces the bulky storage capacitor, shrinking charger size while improving safety, life, and charging efficiency.

A PMOS-based protection circuit keeps hub chip power pins low during power loss, blocking data pin backfeed and preventing restart faults.

Pre-calculated inductor charge timing lets one SIMO converter serve varying loads with stable voltages, low cross-regulation, and high efficiency.

A buck capacitor and super capacitor are charged by the PFC, then discharged in sequence to keep an information handling system powered after input loss.

LED current feedback adjusts half-bridge switch on-time to keep resonant current stable across wide voltage range and 1% dimming.

Secondary-side current sensing and filtered feedback adjust switch on-times to improve LED flyback converter efficiency and reliability.

A conductive trace tied to a low-frequency HV node extends the creepage path between isolated terminals, easing high-frequency layout constraints.

Adaptive switch on-time control uses LED voltage and half-bridge current sensing to cut flicker and magnetizing current peaks in LED loads.

By shifting PWM control signals during mode changes, the half-bridge maintains dead-time and pulse-width limits while preserving load voltage.

A multi-mode buck-boost driver keeps contactor turn-on voltage stable across wide input swings while preventing overvoltage and undervoltage.

An overshoot detection circuit discharges the integrator at soft-start end to prevent DC/DC output voltage overshoot across varying loads and capacitors.

A duty-cycle-triggered reference shift raises noise margin in COT converters, improving stability at high step-down ratios.

Pulse pairing in a multi-output DC-DC converter creates RF spectrum notches to cut EMI while keeping output voltages tightly regulated.

A quantized control loop adjusts boost-converter duty cycle and skip mode to cut ringing-related loss and hold output voltage stable.

An H-bridge protection mode recirculates coil current during degaussing shutdown to dissipate feedback energy without bulky external circuitry.

A stepwise DC/DC precharge raises the lower-voltage battery output to match the higher-voltage bus, limiting inrush current and relay welding.

Stored and truncated PWM pulses help a multiphase voltage regulator limit overshoot and undershoot during current-limited transients.

Gradient-limited duty control restrains rapid current changes in DC-DC converters, preventing overload during fast voltage or current adjustment.

During grid faults, the converter freezes key power and voltage targets to limit desynchronization and enable faster return to steady state.

An auxiliary winding powers the synchronous rectifier controller with fewer turns and lower voltage deviation, improving converter efficiency and size.

A voltage regulator adjusts header switch signals to hold minimum core voltage during clock gating, cutting power without losing state.

A shared PFC, inverter, and DC-DC topology cuts UPS parts count and power density limits while keeping output frequency synchronized during source switching.

A source-follower transistor, amplifier, and capacitor clamp output voltage quickly during large rush events while maintaining phase margin.

A blanking period, bias masking, and EMI capacitor discharge prevent spurious converter restarts and voltage drift after brown-out.

Variable switching frequency and ON-time control improve voltage regulation and phase current balance under dynamic load transients.

A step-up, step-down, and direct-coupling power unit supplies different voltages for heaters and electronics in aerosol devices.

Synchronized secondary-side driving within the same switching period avoids delay and false enablement in transformer converters.

A switched auxiliary winding clamps bias voltage to a capacitor, cutting linear regulator losses across wide output ranges.

Dual oscillator control switches transistor drive frequency and stops one oscillator at lower target voltage to cut IC power use.

Centroid vector mapping in a 3-phase dual active bridge detects open-circuit faults within a few switching cycles using currents from one transformer side.

A master-slave controller stack balances current across extra converter phases when switching control signals are limited, improving thermal response.

Variable RC compensation boosts equivalent capacitance and phase margin, stabilizing semiconductor regulators across wide load currents with less IC area.

An asynchronous finite state machine avoids extreme duty cycles in buck-boost conversion, stabilizing mode transitions and output voltage.

Local controller decisions, bypass switches, and resistor ladders reconfigure phase spacing during cell loss to avoid sub-harmonics and oversized filters.

Fractional-order sliding mode control improves hybrid microgrid stability under renewable fluctuations while regulating DC-link voltage and battery power.

A standby power switching circuit cuts main control power after inactivity, reducing idle drain and extending door operator circuit life.

Sequential switch disconnection and staged checks pinpoint faults in a vehicle bi-directional DC-DC converter while preventing secondary failures.

Voltage-based current reference control smooths switch inrush current, cuts power dissipation, and prevents damaging power spikes.

Extended high-side switch on-time smooths COT buck converter transition to 100% duty mode and keeps output voltage flat near dropout.

High-side current sensing combined with real duty-cycle division avoids dead-time errors and improves DC-DC converter output current accuracy.

A DC/DC converter standardizes battery output for one inductive heater module, enabling stable operation across different lithium-ion chemistries.

Dual-comparator control smooths buck converter transition to 100% duty mode when input voltage approaches output voltage.

A capacitor-timed current limit lets power chips supply brief high current for WiFi or GPRS loads, then drop to a safer low limit.

Threshold-based hysteresis lets a starting circuit switch between external and inverter power to keep controller voltage stable during startup.