Efficient Power Electronics Conversion TRIZ Cases

A timer circuit samples voltage differences to dynamically adjust the reference level for synchronous rectification gate control.

A flyback converter uses a secondary side synchronous rectification controller to regulate multiple output voltages.

A totem pole rectifier combined with a resonant DC transformer circuit manages power conversion in low power adapters.

A power control apparatus adjusts conduction angles across half-wave periods to suppress harmonic generation.

A switching power supply uses a drive time control section to gradually increase the second gate voltage pulse width during burst mode operation.

Controller switches between normal and light load modes to limit upper voltage values, preventing damage to connected loads from overshoot.

A power factor correction controller estimates input voltage from duty cycle and inductor signals.

A snubber circuit merges resistor and capacitor units into conductive traces on a circuit board to dampen oscillation signals.

Magnetic saturation of a toroidal core varies inductance, expanding the resonant operating range while reducing switching losses and component stress.

An RF generator manages switching frequencies to eliminate ringing phenomena and ensure stable output current.

An intermediary circuit generates a controlled voltage offset to stabilize duty cycle and reduce audible noise in hysteretic controllers.

Integrating III-nitride switches with drivers on a single chip reduces parasitic impedances that limit silicon performance.

An MVDC collector system uses adaptive DC/DC converters to shift switching operations between full-wave and half-wave modes.

Input side clamp circuit recycles leakage inductance energy to improve efficiency without complex active clamp components.

A switching converter controller increases reverse current through a synchronous rectifier to maintain stable output voltage levels.

An auxiliary circuit feeds transformer voltage into a DC mid-point capacitor to enable zero-voltage soft-switching.

Dual link power converter reduces ripple voltage and increases power density using parallel soft-switched modules.

Amplifying parasitic ringing via a resonance circuit reduces capacitor size and switching frequency while maintaining voltage stability.

Primary-side drive signal regeneration controls rectifier switches, preventing abnormal self-excited oscillations caused by secondary side backflow currents.

Predictive control anticipates load changes to activate a bypass switch, reducing transition latency and maintaining stable output voltage.

Segmenting the first metal layer into independent sections reduces thermal resistance pathways while maintaining structural simplicity.

Shared switch groups and primary magnetic circuits in a DC-DC converter resolve input current pulsation while reducing circuit size.

A comparator monitors the drive state of a DC-DC converter output driver to generate signals indicating energy transferred to a load circuit.

IVA group ion implantation modifies SiC surface structure to enhance electron mobility in metal-oxide-semiconductor field-effect transistors.

Segmented capacitors and an intermediary inductor reduce current total harmonic distortion while achieving a 0.92 power factor.

A current limit stabilization circuit generates a variable reference voltage proportional to supply voltage.

A driver circuit uses modulation signals to adjust reference current and control valley switching.

A flyback power supply uses a load detection circuit to compare secondary winding voltages for precise output magnitude measurement.

Delta-connected H-bridge modules stabilize renewable energy grids by compensating unbalanced loads without generating high-order harmonics.

A switching circuit for current source inverters uses a diode and bidirectional switch to enable zero voltage soft switching.

A direct conduction avoidance circuit monitors output voltage thresholds to adjust power demand signals in switching power supplies.

Feedback mechanism ensures switch sequencing prevents transformer damage from reverse polarity.

Stacked thermal oxide and CVD dielectric layers form a shield gate trench power device with uniform sidewall thickness.

A fixed inductor magnetically couples to stray package inductance to induce a reference voltage.

An energy dissipation limb diverts excess current through protective elements, preventing component damage during transient faults.

A power converter dynamically selects between fixed frequency PWM and quasi-resonant control modes based on input voltage levels.

Dynamic inductor current thresholds resolve the trade-off between voltage regulation reliability and power efficiency at low output power levels.

A Buck converter circuit adjusts the low side FET threshold voltage using a zero current detection comparator.

A voltage-adjusting device limits DC bus voltage within a stable range using grid sampling and pulse width modulation.

An electronic converter adjusts equivalent resonant components to maintain stable switching states across varying load conditions.

A frequency-dependent load impedance stabilizes power factor controllers by adjusting dummy current based on inverter operating frequency.

A hybrid hysteretic control method regulates LLC converter switches using a summer circuit to sum resonant capacitor voltage and frequency compensation ramp signals.

A power supply device generates feedback signals to control converter operation in skip mode based on input and output power measurements.

A cross-regulation switch directs inductor energy back to the power source during load transients.

Pulse skipping modulation with programmable burst duration reduces switching power consumption at light loads, eliminating current sensing circuitry.

A switched-capacitor converter topology uses variable frequency modulation to achieve high power conversion efficiency.

Current-sensing control synchronizes complementary MOSFET switching to eliminate switching losses and electromagnetic interference.