Efficient Power Electronics Conversion TRIZ Cases

Clamping diodes in a soft-switched flyback converter naturally clamp parasitic oscillations, increasing voltage gain without external inductance.

A three-stage amplifier separates frequency passbands to reduce current consumption in low-power applications.

A resonant step-down DC-DC converter couples input and output capacitors via an isolation barrier short circuit to lower component voltage ratings.

A drive circuit uses an AC suppressor and DC voltage generator to regulate control terminal potential.

A boost circuit adjusts effective inductance to control switching frequency across varying input voltages.

An H-bridge AC/DC converter removes bulky diodes and filtering stages, reducing volume while enhancing efficiency through zero-voltage switching.

Pre-charged capacitor discharges through transformer secondary to force primary current to zero, enabling mechanical switch interruption without arc formation.

An auto-tuning current loop compensation mechanism minimizes total harmonic distortion in AC-to-DC rectifiers by dynamically adjusting gain values.

A high voltage startup transistor supplies charging current exclusively during the startup phase, eliminating standby power consumption in normal operation.

A flyback power converter uses time-shared energy transfer to stabilize output voltage across varying loads.

Computational circuitry subtracts magnetizing current from primary measurements to detect load current, eliminating secondary-side sensing complexity.

A two mode power converter generates dual supply rails for class-D amplifiers using transformer arrangements and dynamic switching.

An isolated bidirectional DC-DC converter employs a voltage clamp circuit with reverse parallel diodes to suppress surge voltages during buck mode operation.

A compensation circuit regulates output voltage precision using a controllable current source and logic gate.

Driver circuit connects high-side and low-side transistor gates to transfer stored charge, eliminating external capacitors and reducing gate drive energy loss.

Boundary conduction mode controllers adjust switch on-time during valley skipping to reduce input current distortion and improve power factor.

Primary side control IC monitors output voltage and resonance current to detect standby mode without secondary-to-primary signal transmission.

A primary side regulator adjusts a reference value via a tracking unit to control output voltage without secondary side feedback.

Protection circuit redirects charging currents to reduce voltage stress on main elements and snubber capacitors.

Resonant coupling eliminates leakage-induced voltage spikes and switching losses to improve conversion efficiency.

A power module integrates a switching device and measurement circuit in one semiconductor package to measure current magnitude.

Update blocks continuously adjust controller coefficients to compensate for grid frequency variations and digital implementation deviations.

Segmenting current flow through MOSFETs and flywheel diodes reduces conduction loss and heat concentration at the intermediate potential terminal.

A resonant power converter adjusts sub-harmonic switching frequencies to transfer isolated power across a capacitive barrier.

A single drive power supply divides voltage into positive and negative biases to control GaN FET switching states.

A microchip drives a resonant circuit with precise frequency and duty cycle modulation to transmit ultrasonic waves efficiently.

Embedding drive transformer windings on a power transformer core reduces component count and size while maintaining electrical isolation.

Voltage adjustment circuit modifies sensing voltages to maintain loop gain stability across varying AC input levels.

A normally-on wide bandgap power module stack uses a balancing unit to manage voltage distribution across parallel switches.

A control device measures body diode conduction time to adjust transistor turn-off timing in switching converters.

Auxiliary power output stage enables rapid transitions between pulse frequency and pulse width modulation modes, reducing wake-up time for WLAN applications.

A low forward voltage rectifier circuit uses a capacitive current splitting network to bias a bipolar transistor for efficient conduction.

Segmented resonant circuit in half-bridge converters reduces output current ripple and enables zero voltage switching for stable LED power delivery.

A transformer secondary winding circuit switches between output loops based on voltage levels to manage power delivery.

Shield drive circuit controls shield line voltage to reduce parasitic capacitance effects without increasing amplifier current capacity.

A power conversion device uses specific switching element configurations to implement soft switching and reduce energy loss.

Feedback loop monitors switching node voltage to adjust turn-off timing, ensuring accurate zero-current detection and minimizing propagation delay errors.

A power conversion device employs soft switching via a resonant circuit to reduce switching losses and improve efficiency in multiphase AC systems.

Segmenting the half period allows the controlling circuit to hold the compensation signal constant, reducing total harmonic distortion in AC/DC converters.

A secondary side controller generates a primary side control signal to manage the leading edge of the primary side switching signal in power converters.

A power switching apparatus manages dynamic voltage domains using recycled charge to conserve energy.

A variable rate integrator dynamically adjusts time constants to reduce drift and minimize overshoot during load transients.

A surge recirculation line couples a high side transistor to the power source node through a diode.

Multi-gate power switch module dynamically adjusts gate configurations to optimize conducting resistance and gate capacitance.

A quasi-resonant half-bridge converter adjusts duty cycles to enable bi-quadrantal magnetization.

A control circuit uses PWM and delay signals to manage MOSFET switching states.

A voltage stabilization unit uses inverter switching elements to charge or discharge a capacitor unit.

Shared error amplifier output node drives current limit and skip clamp circuits, eliminating separate trimming paths to resolve device complexity.

Shield plate connection reduces oscillating voltage and switching frequency increase at light loads.

Integrated multi-voltage converter generates programmable outputs from a single supply.