Efficient Power Electronics Conversion TRIZ Cases

A switching power supply control unit inverts element states based on resonance current thresholds to maintain stable operation.

A switching network stores energy in series capacitance during one quarter cycle and injects it back to the input source during another.

Digitally controlled boost converter selects multiple PWM generators to adjust duty cycles and reference voltages.

An output switching circuit uses a comparison unit and drive pulse generator to control transistors without an internal oscillator.

Segmented energy transfer periods isolate auxiliary winding charge from secondary loads, resolving measurement precision issues in switching converters.

A power management controller detects burst initializing signal phases to adjust switching timing and suppress audible noise.

An LLC resonant converter adjusts switching frequency via efficiency point tracking to optimize power density and regulation.

An adaptive drive strength switching converter adjusts output drive signals via a feedback loop to maintain stable operation across varying input conditions.

Over-voltage protection module monitors phase modulator inductor potential to block surge voltages during startup and normal operation.

A multi chip module integrates vertically stacked field effect transistors with tap clips acting as shunt resistors for precise current sensing.

Dynamic slope compensation minimizes current distortion at low voltages, enhancing the power factor from 97% to nearly 99%.

LC circuit manages resonance to reduce peak current losses and improve power conversion efficiency.

Auxiliary windings replace photocouplers to improve output voltage stability and reduce component costs.

A control circuit limits gate signal frequency after burst mode to manage input capacitor voltage dynamics.

Magnetic devices in resonant conversion circuit units share a single core to enable automatic current balancing between parallel phases.

Dynamic duty cycle adjustment in a multi-phase power converter maintains stable output voltage despite wide input fluctuations, enabling reliable soft-starting.

A microprocessor calculates input power by multiplying output voltage and current with an efficiency curve factor stored in RAM.

Segmenting the controller into analog and digital circuits reduces standby power while maintaining flexibility for full-operation tasks.

Correction circuit injects offset voltage into current detection path during switching element on intervals, reducing power losses in light loading conditions.

Segmenting the primary winding into two series-connected windings reduces surge voltages and leakage inductance losses while maintaining high efficiency.

A resonant converter utilizes transformer parasitic capacitance as a tank element to optimize power conversion efficiency.

A power converter mode control circuit transitions operating states using a comparison voltage and comparator to regulate output.

A gate modulation technique creates operational overlap in wide bandgap switches to control stray capacitance.

A pre-charging circuit charges a bootstrap capacitor through a dedicated flowpath to balance voltage across series capacitor banks in half-bridge converters.

A single switching stage power control apparatus modulates energy delivery using feed-forward methods to achieve high power factor.

Forward control modulates the switching frequency of a resonant converter, reducing electromagnetic interference while maintaining stable power consumption.

A synchronous rectifier drive uses a current replica circuit to generate control voltage for accurate switching timing.

Shared snubber components reduce diode count and manufacturing costs while suppressing switching surge voltage in matrix converters.

A control circuit adjusts auxiliary switch conduction time to enable zero-voltage switching in flyback converters.

A switched-mode power supply uses an LED and phototransistor for galvanic isolation feedback.

A switching power supply uses a negative current sensor to detect inductor current and generate an over-current protection signal.

A peak current servo circuit samples high side device current to match coil current against a reference value.

A ZVS control circuit synchronizes primary and secondary transistors via a pulse transformer to enable zero voltage switching.

An adaptive soft start device controls output voltage gradients during startup and shutdown to prevent inrush currents.

Dynamic impedance detection limits overcurrent in piezo speakers, preventing heat generation and power loss.

A boost converter adjusts inductance and resistance via dual-mode operation to optimize output voltage levels.

An auxiliary winding coupled to a secondary transformer winding detects output current via magnetic induction.

A control apparatus generates command signals to sequence converter state changes, ensuring upper and lower arms remain off during transitions.

A predictive time scheduling method adjusts control currents to manage current commutation efficiently.

A PWM-based power supply apparatus reduces noise interference in magnetic resonance portable components.

Adjusting phase differences and drive angular frequencies maintains inductor current thresholds, expanding zero voltage switching operational areas.

A current controlling DC-DC converter selects PWM or PFM modes using feedback voltage comparisons to optimize gate timing.

A switching power supply frequency control circuit divides operation into regions to execute linear cycle and frequency control modes.

Active clamp flyback controller regulates output current using primary-side sensing and synchronous rectification.

A power supply device controls PFC circuit operation time based on output load size to optimize energy conversion.

A self-driven active clamp circuit uses a Zener diode and capacitor to gate the switch without external control ICs.

A switching mode power supply controller regulates peak current to maintain equivalent frequency above audible range during light load conditions.

Segmented switch banks reduce heat generation by lowering voltage ratings on individual components, enabling compact DC to AC conversion.