Efficient Power Electronics Conversion TRIZ Cases

Dual switched capacitor circuits balance voltages across parasitic capacitors to reduce switching power loss.

A power converter manages inductor current ripple with constant peaks and varying valleys to maintain stable operation across load changes.

Snubber circuit absorbs surge voltage from parasitic inductance to reduce switching loss without increasing apparatus size.

A galvanically isolated DC/DC converter extends switch conductive duration beyond diode transition to provide a parallel discharge path.

Multiphase DC power supply applies interleaved phase control to resolve EMI constraints while maintaining fast responsive speed and low ripple noise.

Controller prevents double turn-on of synchronous rectifying transistors, reducing switching losses and improving efficiency in light load states.

Controllers dynamically select switching schemes to regulate power transfer between AC and DC circuits.

A boosting chopper control unit adjusts oscillation wave change speed to stabilize DC output voltage.

A pulse-skipping-mode control circuit adjusts on-time based on input and output voltages to maintain proportional peak current intensity.

A Flyback converter switches between continuous, valley, and burst modes based on detected load levels.

Electronic control unit learns current sensor offset values during intermittent step-up operation.

A power supply uses segmented synchronous rectifiers and switch drivers to adjust output voltage and current via serial or parallel connections.

A modular multi-level converter uses an auxiliary voltage value to adjust hysteresis band thresholds for precise submodule voltage regulation.

A digital control circuit calculates switching element timing using output voltage signals and differential values.

A hybrid switched-capacitor converter topology uses an adjustable buck stage to regulate output voltage while carrying only a portion of the total current.

An integrated secondary-side controller detects overvoltage and overheating conditions, triggering protective actions to prevent circuit damage.

Switching devices arranged in a matrix configuration with output lines positioned below input lines to optimize the physical layout of the power conversion apparatus.

An energy-harvesting circuit captures leakage inductance voltage stress to power auxiliary load circuitry.

Auto-inductance detection circuit adjusts variable resistance to reconstruct current monitor output, eliminating manual trimming for improved accuracy.

A resonant DC/DC converter uses a transformer with reconfigurable primary and secondary windings to enable zero-voltage switching.

Adaptive switched series transformer extends DC gain range while minimizing conduction loss across wide input voltage ranges.

A buck converter manages inductor discharge using a reverse bias bypass circuit with a serially opposed diode and zener diode.

A power factor improvement circuit uses a switch to temporarily activate during load stop periods.

A three-level LLC circuit topology splits high input voltage across series capacitors to enable zero-voltage switching with lower-rated devices.

A voltage converter uses an auxiliary winding to transmit control signals between primary and secondary sides.

A monitor circuit adjusts switch activation voltage to reduce gate switching losses in power supply circuits.

A CCM boost converter uses a series flyback transformer to achieve complete soft switching across all elements without auxiliary components.

A start-up controller decodes coded commands to latch power switch inhibition.

A silicon carbide MOSFET structure uses a thicker insulating film on separation regions to suppress bipolar current flow.

A power converter manages differential and common-mode voltages using a dedicated DC-to-DC stage to enable bidirectional flow.

A digital error amplification apparatus digitizes compensation voltage using a pulse counting unit to filter AC ripples in LED driving circuits.

A half-bridge resonant bidirectional DC-DC converter circuit combines a buck-boost stage with a resonant stage to enable wide input voltage range.

Phase-shift modulation balances neutral point voltage while maintaining zero voltage switching and uniform switching losses.

A parallel power switch circuit uses two switches with different parasitic inductances to minimize energy loss during operation.

Replacing bias resistors with a constant current source limits transistor base current, preventing excessive collector current during voltage surges.

A power converter uses integrated current sensors to detect primary and magnetizing inductor currents within an LLC resonant circuit topology.

A multi-power factor controller manages multiple loads using shared condensers and electromagnetic contactors.

Adaptive control circuit generates complementary or non-complementary switch signals to recycle transformer leakage energy and achieve soft-switching.

A digital control circuit switches a power supply driver between continuous and intermittent oscillator activation to reduce energy usage.

Adaptive on-time control maintains zero voltage switching at a fixed frequency, reducing switching losses in flyback converters.

An integrated transformer uses serial primary and parallel secondary coils on a multi-column iron core to manage magnetizing inductance.

A monolithically integrated protection device with a positive threshold voltage shares source and drain terminals with the high electron mobility transistor.

Preliminary action pre-charges output capacitors to eliminate transient current deviations, resolving the trade-off between power efficiency and response speed.

A controller detects capacitor voltage variations to calculate inductor current for multilevel power converters.

An inductive coupling mechanism monitors PFC switching conditions to maintain soft switching and reduce power losses.

A power converter calculates semiconductor voltage drops using current sensor data to correct output voltage commands.

Periodic on and off cycles limit switching frequency variation in resonant converters, maintaining efficiency during wide voltage gain changes.

Opposing switching cells in a multilevel converter reduce conduction losses by enabling fewer units to maintain high harmonic performance.

Dynamic delay control circuit adjusts reset switch timing in active clamp DC/DC forward converters to extend achievable duty cycle range.