Efficient Power Electronics Conversion TRIZ Cases

A power converter uses one sensing pin to detect multiple measurement signals by switching between circuits during on and off states.

Switch-mode power converter uses delay feedback circuits to control switch transition times and minimize current through power-FETs.

A sample-and-hold unit captures output voltage to drive an adjustment unit that modifies gate control signal frequency and primary side current.

Dynamic switch control adjusts activation timing to prevent short-circuiting and reduce power loss during switching transitions.

A magnetic component offsets magnetomotive force in a switching power supply core to shift mechanical deformation frequency.

A power supply controller switches between synchronous and non-synchronous ramp control modes to manage modulation.

A controller for active converters determines correction values for voltage detection deviations to perform proportional step-up ratio control.

A power factor correction circuit adjusts its restart interval based on detected operating mode to maintain stable switching cycles.

A current resonance power supply adjusts switch element ON times to reduce excitation currents under light loads.

Full-bridge switch circuit resonates with transformer parasitic capacitances to achieve zero voltage switching across the entire load range.

A resonant converter design enables soft-switching in an isolated buck-type converter to reduce switching losses.

A bi-directional single-stage DC-AC converter design merges conversion stages to deliver resonant power transfer.

A THDi reduction circuit adjusts PFC controller duty cycles based on AC line voltage levels to stabilize power factor correction performance.

A charge pump circuit raises the filtering and load stage voltage to vary feedback signals in resonant converters.

A mixed semiconductor inverter uses wide band gap and silicon components to lower switching losses.

Variable switching frequency control distributes thermal load across cycles, reducing maximum junction temperatures and extending service life.

Multi-resonance half-bridge DC-DC converter paired with a boosting chopper circuit simplifies insulation type AC-DC conversion.

Reconstruction apparatus segments and processes current sense signals to remove parasitic disturbances.

Activating a coupled secondary inductor extracts stored energy during load drops, preventing voltage overshoots without relying on capacitance.

Galvanic isolation via a dual-active-bridge converter segments battery modules, preventing failure propagation across parallel energy storage arrays.

A switching power converter controller regulates mode transitions using a reference point to determine operating conditions.

A charge pump regulator uses a clock generator to vary source clock frequencies across time intervals, enabling multiple circuits with different driving strengths.

Adding a fifth switch in parallel with existing devices creates a one-switch ON-state conduction path, reducing conduction power losses in the DC-DC converter.

Dynamic flyback converter control adjusts auxiliary switch timing to ensure zero-voltage switching.

A resonant circuit control method adjusts driving signal ratios to stabilize operating frequency.

A switching regulator control circuit switches carrier signal frequency based on synchronous rectification transistor source-drain voltage.

A two-stage switching power supply uses a boost converter and resonant bridge to manage voltage conversion across varying input levels.

Sampling the low-side transistor drain-to-source voltage detects negative inductor current, reducing mode bouncing and improving efficiency during light loads.

A self-oscillating AC/DC converter uses threshold-based feedback to generate adaptive gate drive signals.

Charge pump sustains floating supply voltage while minimizing quiescent current consumption.

A resonant converter control device regulates output voltage by comparing capacitor energy signals against threshold levels to generate switching pulses.

Separating current detection from the high-side switching transistor allows flexible MOSFET selection and reduces manufacturing costs.

Primary side regulation power supply uses output drop detection pulses to sample auxiliary winding voltage for stable control.

Orthogonal pillar windings on a unitary core reduce termination losses and leakage inductance while maintaining uniform flux distribution.

A single power supply unit uses a relay and surge current limiting unit to switch between two input voltages, reducing system size and cost.

Blocking circuit isolates control power supply in synchronous rectifiers, enabling capacitor failure screening by eliminating continuous current consumption.

A hybrid 3-level power conversion circuit pairs silicon switching elements with silicon carbide diodes to optimize current paths.

Adjusting the high-side switch size over time lowers drain-to-source resistance, suppressing LC ringing during the ON to OFF transition.

A resonant conversion circuit uses trajectory segmentation to predict operating modes and adjust switching times.

A feedback interface circuit reconfigures gain and offset to switch a switched-mode power supply between normal and burst operating modes.

Clamping circuit prevents feedback loop nonlinearity by holding error voltage above ramp minimum to ensure rapid recovery from overvoltage events.

Secondary side controller determines ZVS pulse timing from ringing signals to achieve zero voltage switching and reduce electromagnetic interference.

A bridge driver uses reverse inductor current to pre-charge the output node, enabling soft-switching and hard-switching operations.

Controller manages switching transistors to reduce turn-on loss, resolving energy waste from overlapping voltage and current during power conversion.

A controller-based diagnostic system sets codes from DC bus conditions and motor phase currents to identify drive or motor malfunctions.