Efficient Power Electronics Conversion TRIZ Cases

A bidirectional DC-DC converter and input capacitor enable fast, precise high-voltage control with energy recovery and low loss.

Alternating duty-ratio control in diagonal secondary half-bridges boosts output voltage range while reducing turn-off loss and balancing switch stress.

Vertical PCB stacking with a cold plate cools high-loss circuits and preserves thermal dissipation in smaller power converters.

A charge pump draws line-synchronized current pulses to correct power factor while resonant soft switching cuts EMI, losses, and passive size.

Dynamic step-up and LLC mode control enables adjustable output voltage while preserving voltage gain and conversion efficiency.

A coupled resonant inductor replaces separate CLLC inductors to cut magnetic volume, preserve resonant behavior, and avoid custom core designs.

Coordinated LLC and buck control uses measured electrical signals to maintain constant output impedance under varying sigma converter loads.

A transformer-coupled bridge and buffer circuit cuts active components and conduction losses while maintaining current continuity and surge suppression.

A switched shunt load and filtered control signal clamp output spikes in lightly loaded isolated DC-DC converters without constant loss.

Phase-shifted constant on-time control uses ramp generation and on-timers to speed dual-phase converter transients and balance current.

Dynamic dead-time control using voltage and inductor current sensing helps an isolated DC-DC converter maintain efficiency across wide input and load ranges.

Varying magnetic coupling between secondary windings cuts cross current and power loss in DC distribution for loads with different power levels.

Three modulation schemes let an isolated LLC DC/DC converter cover a wide output voltage range while keeping switching frequency narrow and efficient.

Quasi-peak cycle-by-cycle current control and soft switching enable a compact isolated PoL converter with high step-down ratio and fast load-transient response.

Phase-based frequency control keeps a wireless vibrator near resonance, improving power transfer at longer coil distances.

Split primary winding, interleaving, and negative coupling cut leakage inductance and core loss in high-current DC-DC converters.

An LCL-transformer dual active bridge converts constant current to regulated DC voltage while sustaining ZVS across wide load ranges.

Cascaded carrier PWM cuts switching losses and balances transistor heat in CHB converters, extending service life for MV grid coupling.

Integrated switching limbs, a director limb, and resistive elements regulate inrush and fault currents to protect converters without separate hardware.

Series input capacitors and parallel resonant stages cut switching loss, current ripple, and EMI in high-power power conversion.

Sequential resonant currents at different frequencies identify cookware material and tool type, enabling safer, more accurate heating control.

Multiple resonant modules in series stabilize output across wide input voltages while reducing frequency variation, EMI burden, and switching stress.

Coordinates PFC modes across multiple electronic circuits to improve overall power factor and reduce mains harmonic distortion at low power.

A transformer-coupled DC breaker uses analog current limiting to stop DC faults quickly while preserving galvanic isolation.

A bottom-edge shielding region in a SiC trench gate lowers gate-drain capacitance to curb turn-off oscillation and improve ruggedness.

Series semiconductor converters and split inductors cut switching losses and overvoltage while keeping DC chopper circuits compact and stable.

A three-phase SMPS gives material testing machines high power across wide input voltages while limiting inrush and blocking regeneration currents.

Time Slot Power Distribution Control independently regulates CC and CV outputs in a single-magnetic flyback converter, cutting size and cost.

Mode-selectable PMIC channels switch between dual and single DC/DC operation to cut power use while supporting multiple platform designs.

Vertical floating field plates and MIS depletion raise SOI breakdown voltage, lower specific on-resistance, and suppress snapback.

Multi-cycle frequency hopping disperses switch-mode power spectrum energy, lowering EMI peaks and helping security test compliance.

A minimum snubber FET on-duty keeps switching at the desired frequency, cutting audible noise while still handling surge power.

Switching between phase shift and asymmetric PWM control widens duty ratio range to stabilize output voltage and avoid shoot-through currents.

Variable switching frequency cuts low-load switching loss in a dual-active-bridge DC/DC converter while maintaining power transfer efficiency.

Adjacent-zone switching and shadow capacitor balancing let a multi-level DC-DC converter reach boundary voltages while preventing switch overstress.

A blanking interval delays flyback switch-on to limit switching frequency, reduce valley-jump noise, and cut switching losses.

Discrete-time zero-crossing updates regulate converter output voltage while preserving loop stability and matching input current to AC voltage.

Parallel inverter and transformer stages create selectable stepped voltages for the smoothing circuit while reducing circuit complexity and parts.

Using gate clamping current and parasitic capacitance, this case detects zero inductor current and drain-voltage valleys without external sensing parts.

Series switches let TLVR phases decouple at light load or over-current, cutting conduction loss and improving fault response.

Inductor-current-triggered switching cuts quiescent current in a hybrid switched-capacitor buck converter, improving light-load efficiency.

Timing-difference feedback holds a minimum switching frequency to keep a resonant converter out of off-resonance and prevent through-currents.

Synchronous average harmonic current control enables single-stage bidirectional power transfer with regulated voltage and lower parts complexity.

Dynamic DC-link voltage control helps full-converter wind turbines improve active and reactive grid support in low winds while limiting switching losses.

PWM gating creates a three-level LLC input voltage to keep switching frequency fixed across a wide gain range while easing EMI and magnetic design.

A timeout and counter control loop keeps buck converter switching above 20 kHz, cutting audible noise while preserving light-load stability.

Vertical stack ceramic capacitors placed beside the switching element cut switching noise, save mounting area, and improve module reliability.

Dynamic dead-band calculation in a half-bridge enables zero-voltage switching while preventing shoot-through and cutting thermal losses.

Stacked daughterboards and decoupling paths cut parasitic inductance, enabling higher-frequency switching with better heat management.

A secondary-side switching pattern adds an extra state to cut switch losses and relax control accuracy during reverse power flow.