Efficient Power Electronics Conversion TRIZ Cases

Comparator-based control circuit achieves adaptive voltage position regulation using virtual short characteristics.

A single transformer transfers power and feedback signals across an isolation barrier, reducing component count and manufacturing costs.

A dynamically adjustable low side gate driver varies switching speed to manage transient voltage spikes in synchronous buck converters.

Feedback control maintains bus filter capacitor charge in a resonant driver, raising the power factor above 0.7 to reduce energy consumption.

A current regulating circuit uses inverters and a capacitor to accelerate voltage level changes at the reference node.

A control circuit switches compensation capacitance between high and low values to optimize converter operation across continuous and discontinuous modes.

Full-wave rectified pulsating voltage periodically drops to near zero, extinguishing arc discharges and improving power factor.

A control circuit manages a rectifying switch to shunt energy during light loads.

Segmented high voltage coils with insulating substrates reduce arcing risk, while dynamic frequency control optimizes ozone production efficiency.

A controller calculates programmable delays from switching node voltage transitions to drive high and low side switches.

Synchronizing frequency hopping with AC input voltage prevents even order harmonic deterioration while maintaining high power factor.

Synchronous rectification chopper circuit achieves soft switching through complementary deadtime control of main and commutation elements.

A multi-mode controller adjusts peak current granularity to minimize charge quantization errors in switching power converters.

A switching converter controller detects ramp signal parameters to adjust the pulsed signal on-time and maintain a stable switching frequency.

A dual-capacitor snubber circuit charges in series and discharges in parallel to recover leakage energy from a flyback transformer.

A digital switched mode voltage regulator combines linear and non-linear filters to generate a hybrid error signal for pulse modulation.

Primary side current feedback controls SR MOSFET timing to prevent premature turn-off, reducing voltage drops across parasitic inductance.

A semiconductor element driving circuit generates a stable reference signal using a divided potential difference between power supply and ground voltages.

Dual timers adjust switching frequency based on inductor current, reducing losses while maintaining constant average current independent of supply voltage.

Delaying pulse rise times based on detected voltage differences balances filter capacitors, reducing heat generation from parallel resistances.

Dynamic mode transitions maintain zero voltage switching across wide input ranges, resolving efficiency losses in grid-connected power conversion.

A dedicated module generates drive signals for power conversion devices, reducing controller processing load and heat generation.

An alternating valley switching controller uses a blanking-window signal to alternate power switch periods.

A dual primary bridge LLC resonant converter uses separate bridges with different Q values to manage power switching.

A switching delay controller adjusts timing between power elements to optimize energy conversion efficiency in switched mode power supplies.

A tertiary harmonic wave amplitude determining unit adjusts signal levels to minimize power loss in three-phase voltage inverters.

Digital signal processor adjusts high-frequency inverter circuit parameters to overcome milliwatt power limits and enable order greater than 1.

A secondary-side controller generates wake-up signals to adjust primary switching frequency for isolated converters.

A full bridge converter uses a resonant tank circuit to achieve zero voltage switching and stagger energy transfer for efficient power conversion.

A synchronous rectifier controller manages the secondary MOSFET gate drive signal to maintain primary side synchronization.

A sub-sampling circuit extracts amplitude and phase from state variable signals at rates lower than the RF frequency.

A gate voltage boost mechanism drives a synchronous rectifier FET to ensure full conductivity when output voltage drops below a threshold.

Admittance compensation cancels unwanted currents from grid voltage, eliminating steady-state errors without deteriorating relative stability.

A detection circuit compares node voltage with a reference value to regulate synchronization switch inactivation, reducing energy loss at low loads.

Optical energy supply eliminates insulation complexity and battery maintenance by powering bidirectional switch control circuits.

Merged switching arms in a resonant load power conversion device lower switching frequency while minimizing impedance dispersion and reducing conductor count.

Magnetically coupled windings in a common-mode choke circuit couple gate terminals to balance switching transient currents and prevent device degradation.

A synchronous rectifier controller adjusts its turn-off threshold dynamically to optimize power conversion efficiency across varying load conditions.

A quasi-resonant converter uses near valley switching to reduce switching losses while maintaining efficiency.

A switching power supply uses a charging circuit to control an N-type transistor for secondary-side synchronous rectification.

Replacing AC relays with thyristors simplifies converter pre-charging, reducing device complexity and manufacturing cost while improving reliability.

A power converter modifies detected voltage using a delay compensating value to ensure smooth transitions between boosting and PWM operations.

Resonant discharge of parasitic capacitance reduces conduction losses and component count in flyback power converters.

A mode switching circuit controls power supply operation between continuous and discontinuous conduction modes to manage inductor current flow.

An inverter emits segmented voltage pulses during each half-cycle to suppress supply voltage harmonics, eliminating bulky filters in ultrasonic tools.

Capacitors switch between parallel and series modes during AC cycles to eliminate flickering from insufficient forward voltage.

A THDi control circuit adjusts pulse width modulation duty cycles via real-time current detection to maintain low harmonic distortion across wide AC input ranges.

Dynamic frequency control circuit optimizes clock signal switching rates during high and low load periods to prevent voltage drops and enhance power efficiency.

A switch control device modulates switching frequency and phase difference across parallel converters to manage power distribution.