Efficient Power Electronics Conversion TRIZ Cases

A hybrid resonant converter drives an LLC tank with combined two-state and multi-state waveforms to regulate output voltage via duty cycle adjustments.

Merging the flyback secondary side with the main converter reduces voltage stress on switching devices and improves power conversion efficiency.

Separating source lead traces isolates the gate drive path from high-current switching, reducing parasitic inductance induced voltage drops that delay turn-on.

A resonant DC-DC converter integrates a clipping circuit to limit primary winding voltage spikes.

Interleaved bridge arm units operate in parallel to maintain continuous inductor working states within power factor correction circuits.

An electric current flow control module detects shock conditions in linear LED lamps and shuts off return current, preventing arcing during maintenance.

Turn-off FETs and inverted drive signals protect voltage sense transistors from over-voltage damage during high-frequency switching.

A full bridge DC/DC converter generates a secondary-side short-circuit during phase transitions to increase primary current for zero voltage switching.

Varistors and inductors limit transient overvoltages on the DC link, preventing IGBT failure during high-voltage operations.

A DC to DC controller uses table mapping to compensate output voltage ripple.

ECM scheme truncates excessive charge transfer via peak/valley current control to maintain output voltage regulation.

A voltage regulator uses a capacitor to gently raise the reference voltage during startup.

A partial power converter uses a transformer and bypass capacitor to increase output voltage while processing reduced power.

LLCC-SOR power converter reduces resonating current at light loads by tuning transformer secondary to an odd-order overtone of the primary switching frequency.

A power factor correction controller switches to proportional control during overvoltage events to stabilize output voltage.

A power factor improvement circuit uses a clamp mechanism to limit voltage fluctuations during switching operations.

A DC-DC converter uses time-division switching to drive main and auxiliary transformers, reducing apparatus volume by 20%.

Dynamic phase control reduces switching losses and reactor saturation while suppressing output current noise in DC-DC converters.

A zero current detection circuit generates sync pulses from inductor current crossings to trigger switch timing adjustments.

Adjustable resistive feedback loop prevents damaging current peaks during bypass mode transition by gradually increasing output voltage.

Dynamic switching frequency control reduces zero-crossing time and total harmonic distortion in boundary conduction mode power converters.

A resonant converter controller detects capacitive mode operation and increases switching frequency to maintain zero voltage switching.

A hybrid converter system combines silicon and silicon carbide devices to minimize switching losses.

A control circuit adjusts the switch on-time period to transition between power saving and normal modes.

Offset compensation in the PFM comparison circuit reduces output ripple voltage by preventing unnecessary switching operations during power conversion.

A power source device uses a switchable resonance capacitor to optimize energy transfer between primary and secondary windings.

Detecting inductor current direction during scram events to selectively activate semiconductor switches and direct freewheel current away from parasitic diodes.

A PWM generator switches its output signal on and off based on secondary side voltage levels to manage standby power distribution.

A control circuit modulates switch periods to reduce switching losses in power supplies under light load conditions.

Switchable triac bypasses current limiting resistor after startup to manage in-rush current.

A synchronous rectifier latches off driven signals to enter light load mode and reduce power loss.

A control unit gradually adjusts the turn-on duty of switching elements during voltage mode transitions in a power supply apparatus.

A power monitor calculates compensation factors using line frequency and voltage data to estimate input power accurately.

A feed-forward compensation stage generates a voltage to cancel DC errors in hysteretic switching regulators.

Segmented primary and secondary controllers interrupt monitoring circuits during burst mode to reduce power consumption.

A power supply inverter applies a predetermined voltage to solar cell modules at night to adjust their ground potential.

A power supply updates a pulsation threshold based on inflow current to isolate capacitor aging from load fluctuations.

A switching converter dynamically transitions between pulse width modulation and pulse skipping modes using a current comparator and reference generator.

Time-division multiplexing on a single pin detects temperature and AC line voltage, reducing package size while maintaining detection accuracy.

Resonant units reduce switch loss, enabling high voltage conversion ratios without transformer complexity.

A controller uses burst switching to minimize standby power consumption in mobile device chargers.

A duty controller regulates switching duty in boost converters using delta-sigma modulation to stabilize operation.

Voltage converter-based feedback circuit transforms digital signals to analog control inputs.

Controller monitors energy storage level to control switching devices, ensuring full secondary coil discharge and reducing wasted energy in resonant converters.

Integrating discrete LCLC tank components into a single transformer reduces electrosurgical generator complexity and manufacturing costs.

A control apparatus manages power converters to maintain stable voltage and frequency in isolated system sections.

A constant current power factor correction circuit matches input voltage to the input current waveform using a controlled switching device.

An integrated circuit adjusts transistor on-time based on rectified AC voltage to shape input current waveforms for power supply applications.

Orthogonal secondary windings transfer power through distinct magnetic flux paths, reducing eddy current losses during multi-kW scaling.

Alternating capacitor charging across four bridge arms reduces ripple currents and improves component usage in three-phase Vienna PFC circuits.