Efficient Power Electronics Conversion TRIZ Cases

A switched-tank DC transformer adjusts output voltage by switching resonance tanks and support capacitors between normal and ratio states.

A control circuit adjusts dead-time periods using slope sensing to maintain zero-voltage switching in resonant converters.

Auxiliary winding isolates magnetizing current from reflected load signal, eliminating secondary-side components and simplifying PCB layout.

A switching regulator integrated circuit uses a mode selector pin to toggle MOSFET switches between synchronous and asynchronous operation.

A microcomputer stop transition unit controls internal power source output to manage shutdown sequences in DC/DC converters.

A variable frequency voltage regulator adjusts its switching speed using a sense circuit and frequency adjust block to match output conditions.

A bridgeless power factor correction circuit manages energy storage through dedicated charge and discharge devices connected to existing boost converter inductors.

A power management unit monitors regulated output voltage to control oscillator activation for efficient power conversion.

A flyback converter controller uses resonant tank current as a proxy for output current.

A power factor circuit uses a current shaping resistor and Zener diode to manage input current flow in switching power converters.

Auxiliary coil and capacitive element optimize phase delay to reduce switching loss without enlarging receiver coils.

A reverse voltage application circuit merges auxiliary sources to suppress main circuit current, reducing losses and simplifying control mechanisms.

A power converter controller prevents audible transformer noise by skipping switching cycles when frequency approaches the 20 kHz resonance band.

Segmented control circuit uses error amplifier to eliminate ripple voltage errors from capacitor ESR, stabilizing average output.

Segmented sampling units detect switch and diode currents in a bridgeless PFC circuit, preventing control loop loss at high AC input voltages.

A switched capacitor power converter controller configures capacitors and switches to maintain output voltage within a predetermined range.

A semiconductor rectifier adjusts timer operation times via a calibration circuit to prevent reverse currents during high-speed voltage conversion.

Symmetrical auxiliary switches and energy adjustment modules eliminate transformers to reduce switching loss and prevent voltage surges.

A shift register unit incorporates a compensation module connected to a bootstrap capacitor to maintain node potential stability.

A non-resonant inductive power transfer system adjusts transmission frequency via a driver to stabilize energy delivery.

A two-stage multi-phase buck converter increases clocking frequency and activates phases to resolve switching loss versus response speed trade-offs.

A processor-controlled dummy load absorbs excess energy to prevent overvoltage and electromagnetic interference during near-zero load conditions.

A control method detects voltage across a synchronous rectification switch body diode to calculate resonant frequency and determine maximum conduction width.

A switching controller modulates DC/DC converter frequency to suppress acoustic noise from ceramic capacitors.

Wide bandgap GaN materials enable a bi-cascode switch structure that lowers conduction loss while increasing operating frequency beyond 50 kHz.

A positive and negative voltage driving circuit generates alternating signals to reduce active stylus power consumption.

A controller modulates switching frequency to reduce output ripple in switched mode power converters.

A step-down power supply topology with a rectifying circuit and control logic shapes the input current waveform.

A resonant converter controller adjusts switching frequency to regulate power conversion and limit current flow.

A twelve-sector control algorithm maintains phase synchronization during zero voltage switching, reducing common mode voltage and harmonic distortion.

A control circuit generates current compensation signals to adjust main switch conduction time in switching converters.

A voltage regulator switches between full-power and low-power modes to maintain bias voltage levels in a DC-DC converter output stage.

Periodically reversing diagonal device sequences balances transistor power dissipation, reducing operating temperature and enabling lower-wattage components.

Splitting the parallel inductor into distinct magnetizing and resonant components reduces switching losses in telecommunication power systems.

Auxiliary winding detects parasitic diode freewheeling time to adjust main power switch timing, eliminating optical couplers and reducing circuit cost.

A multimode inverter circuit transitions between full and half bridge states to control power delivery in an inductive rotary joint.

A switched-mode power supply uses a secondary controller to detect no-load conditions and adjust the primary voltage reference.

A resonant converter adjusts switching frequency based on secondary side current zero-crossing detection.

A semiconductor integrated circuit manages MOS transistor switching to minimize ground noise in DC-DC converters.

A control circuit maintains zero-voltage switching in a resonant power converter using transistor state detection.

Control assist unit reduces body diode conduction losses by dynamically adjusting dead-time based on switching node voltage levels.

A low-side switch sensing device extracts inductor current slope information to generate a proportional triangular waveform for accurate monitoring.

Indicating circuit with LED and inductor detects electrolytic capacitor degradation in active power factor correction switching power supplies.

Indirect load current detection across a resonant capacitor adjusts PFC setpoint voltage, eliminating slow optocoupler delays.

Mixed signal controller generates calculated discontinuous conduction time via analog timer to resolve current distortion during mode transitions.

An adaptive current limiter adjusts peak current limits based on load duty cycles to optimize switching regulator performance.

A voltage setting unit adjusts phase compensation impedance potential to accelerate error voltage decay during mode transitions.

A soft-switching bi-directional power converter uses resonance inductors and capacitors to generate complementary control signals for zero-voltage switching.

A controller transitions switching frequency based on detected phase alignment to maintain output voltage stability.

A valley detection circuit charges two capacitors with constant currents to identify the resonant voltage minimum.