Efficient Power Electronics Conversion TRIZ Cases

A dimmable single-stage power converter uses adaptive switching frequency control to manage pulse width modulation and skip modes.

A bidirectional voltage converter measures mean bridge current to determine transistor switch-on timing for zero voltage switching.

Replacing opto-isolators with a signalling transformer reduces LED driver complexity and cost while maintaining galvanic isolation.

A resonant switching converter multiplexes power transistors via a multi-level generating circuit to achieve resonant control.

A power supply apparatus switches target voltage levels using a notification unit and control unit to manage output transitions.

Sampling the synchronous rectifier voltage enables dynamic zero voltage switching pulse adjustment, resolving efficiency losses from imprecise timing control.

An integrated body diode in a silicon carbide MISFET reduces turn-on voltage and switching losses compared to conventional freewheeling structures.

A multiphase converter swaps firing orders of inactive modules to balance phase currents and reduce switch heating.

Correction circuit modifies feedback signal levels to detect load current, eliminating separate detection cables and reducing power consumption at light loads.

A switching converter control circuit manages high and low side switches using comparators and logic to enforce current thresholds.

A soft-switched buck regulator circuit controls pull-down switching events to reduce energy loss.

Variable reference voltage modulation disperses peak electromagnetic interference, ensuring compliance with strict emission specifications.

Integrated control circuitry cancels ripple voltages via shifted switching cycles while a differential detector stops operations to prevent breakdowns.

Secondary-side control circuit detects falling output voltage rate and communicates with primary-side controller to adjust switching frequency.

Sharing switches between converters reduces voltage stress and improves efficiency by enabling zero voltage switching in the standby mode.

Multi-phase buck converter couples switch sets with power storing units to increase power storing frequency without adding phases or increasing power loss.

A resonant converter adapts switching parameters to supply pulsed power to light sources.

Resonant capacitor discharge cycles transfer energy between DC nodes without AC intermediates, reducing system complexity and energy losses.

Dynamic coil segmentation adapts transformer ratios across wide input ranges, removing bulky PFC circuits while reducing heat and volume.

A circuit calculates average output inductor current using peak current and counter counts from a differential amplifier system.

A dual active bridge converter adjusts switching on-time to regulate output power in step-down mode.

A voltage generation unit switches between constant voltage and constant current modes to balance load distribution among parallel power sources.

Dynamic resonant frequency adjustment reduces switching losses in LLC converters under varying load conditions.

A bootstrap power supply circuit stabilizes gate voltage using a variable impedance controller and internal capacitor.

Dynamic rectifier off-time control reduces peak-to-peak ripple current variations and prevents damage from overvoltage conditions.

A dual-switch flyback converter synchronizes low and high side switches to regulate output voltage across varying loads.

A buck converter uses a control signal generator to manage PWM pulse width and switching operations for optimized power delivery.

A switching power supply control circuit detects resonance current after-inversion time to precisely time high-side element turn-off.

Dedicated hardware blocks handle real-time control operations, reducing processing power consumption while maintaining high switching frequencies.

Dynamic switching between rectified and capacitive nodes reduces bulk capacitor volume while maintaining minimum voltage requirements.

Indirect input voltage sensing via on-time and discharge time measurements compensates for variations to maintain accurate constant current output.

A dynamic switch drive module adjusts the magnitude of the base current signal within switching cycles to control transistor operation.

A conversion device with DC/AC and DC/DC units generates smooth AC voltage through polarity inversion.

Segmented converters reduce power consumption and costs by using lower-voltage switches for high-current boost modes.

A control circuit adjusts active voltage regulator phases using a variable threshold.

An auxiliary converter adds voltage to a DC supply, maintaining regulator input within an optimal sub-range despite wide system input variations.

A power controller monitors auxiliary winding voltage deviations to assert an open protection signal and stop power conversion.

A flyback controller uses zero voltage switching to minimize heat generation and electromagnetic interference in power conversion systems.

Dynamic threshold adjustment stabilizes buck converter output voltage against signal noise and phase lags under light load conditions.

A buck switching regulator uses a phase-locked loop to maintain fixed frequency.

Independent harmonic tuning reduces voltage stress on transistors while enabling higher switching frequencies and increased power density.

A single-stage wireless power transfer circuit uses solid-state switches to drive an antenna network at its resonant frequency.

A switchable load connects to a non-synchronous switching regulator during state transitions.

Iterative average current mode control separates feedback loops to eliminate subharmonic oscillations during mode transitions in multi-mode DC-DC converters.

A DC power supply circuit uses a dedicated snubber capacitor to absorb surge voltage generated during rectifier diode recovery.

A shunt resistor bypasses secondary current in a flyback converter synchronous rectifier to lower power dissipation.

A power saver circuit reduces PWM control signal rates during load idle modes to lower switching losses in voltage regulators.

Dynamic carrier wave frequency selection suppresses voltage ripples during overmodulation mode while minimizing switching loss in vehicle drive systems.

A switching controller adjusts turn-on and turn-off times in an active clamp flyback converter to minimize conduction loss.