Efficient Power Electronics Conversion TRIZ Cases

Controlled driving circuits generate measurement and reference pulses to detect load changes while minimizing no-load power consumption.

Segmented protection using an auxiliary switch prevents network short-circuiting during startup without oversized relays.

A power supply apparatus detects burst frequency to prevent audible noise generation.

A softstarter uses phase voltage measurements to calculate firing angles for semiconductor devices.

Asymmetric gate voltages reduce switching losses in multi-phase buck converters, maintaining high efficiency across varying load currents.

Recovering leakage inductance energy lowers main switch cross-voltage before turn-on, eliminating transient conduction loss and improving conversion efficiency.

A switch controller regulates peak current and detects winding discharge time to maintain a constant ratio within each switching cycle.

A quasi-resonant converter detects switching valleys to adjust operation modes and reduce energy loss.

A multilevel inverter topology eliminates freewheeling diodes using semiconductor switches to enable high-frequency operation above 50 kHz.

Leakage transformer with bidirectional switch reduces peak current by extracting forward and flyback voltages, preventing abnormal heating.

An auxiliary switch network minimizes electromagnetic interference by routing current through an intermediary node to bypass parasitic loops.

A driver circuit charges a capacitor via power factor correction to regulate output current for LED illumination.

A synchronous rectifier circuit in a wireless power receiver uses a control unit to manage switching elements for efficient energy conversion.

A determination unit calculates the sum of n-th powers of instantaneous three-phase voltages to identify power supply states.

Uneven cell distribution minimizes turn-on and dynamic losses in integrated synchronous switches.

Replacing passive diodes with active switches reduces power loss proportional to current squared while maintaining simple circuit structure.

A current detection circuit switches secondary side reset element connections to adjust magnetic reset impedance.

A clock gating unit detects transaction states to suspend root clock signals.

A power supply device uses a high-speed current detection circuit to monitor secondary winding changes for synchronous rectification control.

A non-insulation LED driving circuit eliminates transformers via extraction principles, resolving triac dimmer flickering while improving power factor.

A startup cell electrically couples a power supply input to a capacitor during inactive phases.

A driver circuit senses drive voltage and adjusts the signal to limit switch-current in power transistors.

Controller samples current sense signal at valley points to calculate average output current and maximum output power.

A synchronous rectifier circuit uses a four-terminal MOSFET to detect secondary winding current via terminal voltage sensing.

Series-connected GaN switches handle high voltage while maintaining fast switching speeds, reducing input filter size.

A switching power supply uses frequency fixing and pulse width control to optimize conversion efficiency.

A switching power supply uses parallel main and secondary MOSFETs to manage load current.

A power converter controller adjusts switching frequency and peak current to regulate output voltage.

A gate driver circuit adjusts switching frequency and voltage based on integrated temperature sensor signals to optimize DC-DC converter performance.

A charger circuit merges switching and direct charging modes into one integrated design to simplify control logic.

A digital power factor correction voltage controller uses linear PI compensation and hysteretic peak control to regulate DC bus voltage.

Regulation circuit maintains constant duty cycle in isolated DC/DC converter, reducing rectifier diode voltage stress and switching losses.

A power adapter switches transformer secondary voltage taps based on sensed output current levels to match device operational modes.

A flyback converter adjusts switching frequency using a timer circuit to reduce energy loss.

A current doubler DC-DC converter uses a reserve capacitor to boost transient response speed.

A unibody conductive member connects a passive element to a substrate layer in a stacked configuration, eliminating soldering clearance requirements.

An active snubber circuit stores transformer leakage energy in a capacitor and transfers it back through an inductor to enable zero-voltage switching.

A control circuit adjusts charge pump clock frequency based on load status to enhance driving capacity and efficiency.

A control circuit for power converters uses segmented ramp signals to stabilize switching operations.

A reference voltage adjustment circuit modifies the control signal to suppress output current ripple in power supply apparatuses.

Variable frequency control secures zero-voltage delay time, expanding the soft switching range to reduce switching loss and improve converter efficiency.

A power converter samples voltage induced across parasitic inductances to control switching overvoltage at the gate driver reference node.

A current balance feedback circuit adds correction signals after the PWM comparator to stabilize phase currents in multi-phase DC-DC converters.

Asymmetric switch resistance values enable negative output voltage tracking in charge pump circuits, compensating for startup variations and load imbalances.

A controller uses valley-lock switching to limit maximum frequency in quasi-resonant power converters.

A full bridge LLC resonant converter design uses a capacitor to create an additional noise loop for common mode electromagnetic interference cancellation.

A variable frequency oscillator suppresses output ripples and increases conversion efficiency by adapting switching speed to load conditions.

Distributed inverter control circuits generate weighted correction values to coordinate reactive power, eliminating centralized monitoring dependencies.

A control circuit generates specific switching signals to minimize power switch frequency in a buck-boost converter.