Efficient Power Electronics Conversion TRIZ Cases

A voltage converter generates feedback power for its pulse width modulation circuit using inductive coupling between two inductors.

Bridgeless AC-DC converter topology eliminates diode rectifier to reduce switching and conduction losses while minimizing common-mode noise.

A phase shift full bridge converter uses a secondary clamp circuit to manage voltage stress and circulating currents.

Segmented memory controllers manage distinct SDRAM interfaces, reducing energy consumption while expanding storage capacity.

A switching regulator uses a crossing detector to compare auxiliary voltage against a negative reference, generating a disable signal that controls the second switch state.

Reconfiguring deactivated power factor correction circuitry as an auxiliary source resolves component cost and area trade-offs during standby operation.

A snubber circuit aligns resonance with transistor ringing frequency to dissipate energy through a resistor.

A power converter uses interleaved main current paths to reduce inductance and switching loss.

Timing control circuit samples terminal voltage at specific intervals, reducing required pins while maintaining accurate power supply regulation.

A control circuit adjusts dead time in a full-bridge switching power supply to ensure zero voltage switching.

Digital coefficient scaling maintains crossover frequency and transient response across varying phase configurations.

A signal processing circuit adjusts burst wave frequency to match reverberation signals for optimal transmission sensitivity.

Dynamic valley selection in a quasi-resonant controller stabilizes switching frequency, reducing audio noise and ensuring continuous output power.

A Darlington transistor drive circuit uses switch units with variable equivalent resistances to control switching cycles.

A rectifier circuit applies an instantaneous reverse voltage to suppress transient currents during switching transitions.

A third transistor maintains inductor current flow during switching dead time intervals.

An adaptive synchronous rectifier controller adjusts dynamic minimum off-time based on drain voltage sensing.

Segmenting resonant inductors across transformer windings reduces circuit volume while maintaining stable output voltage under variable driving conditions.

Segmented auxiliary windings maintain stable Vcc voltage across load variations while reducing energy losses.

An integrating element accumulates voltage to create an emulated inductor current, enabling fast switching frequencies beyond traditional measurement limits.

A soft-start control circuit increments drive signal on-width per switching cycle to stabilize output voltage during startup.

A dynamic start-up procedure adjusts dead time based on input and output parameters to manage parasitic capacitance charging in synchronous buck converters.

A controller device uses a feed-forward pin to receive input voltage signals and adjust switching frequency for responsive power conversion.

A three-phase delta resonant converter topology distributes power across parallel legs to enhance zero voltage switching performance.

A feedforward controller generates a signal based on input voltage to adjust the chopper operating frequency in an LLC resonant converter.

Control circuit detects zero current timing via inductor terminal voltage, eliminating extra terminals and reducing device complexity.

Dynamic threshold adjustment prevents mode bouncing and stabilizes output voltage during phase transitions, improving transient response.

A voltage regulator uses a sample and hold module to isolate the droop control signal from inductor current changes during steady state.

A primary control circuit adjusts the first switch tube turn-off moment based on magnetizing inductor voltages to minimize switching losses.

An active filtering system injects compensation pulses into the chassis ground to cancel common-mode noise.

A zero current detector control circuit modulates the off time of a flyback power factor corrector integrated circuit to shape the line current waveform.

A digital pulse controller adjusts high side and low side switch timing to maintain switching frequency within a desired band.

Bi-directional clamping devices replace diodes in multilevel inverter phase legs to enable parallel current paths.

A microchip drives resonant circuits using integrated feedback to adjust drive signals.

A switching power supply predicts linear control instruction values during non-linear operation to enable seamless mode transitions.

A synchronous rectification circuit uses a current examination resistor to drive transistors directly.

A control circuit for flyback converters uses valley switching and feedback error signals to maintain constant output.

A compensation circuit samples induced voltage to adjust gate driver signals, balancing switching losses and overvoltage in parallel power electronic switches.

Compensation circuit modifies emulated inductor current to cancel ripple voltage and mitigate discontinuous conduction mode undershoot.

A clamp circuit mediates voltage stress in an isolated converter to enable high boost ratios with reduced transformer coil turns.

A power converter control system uses an opto-isolator circuit to produce multiple voltage levels at a feedback node.

A planar transformer DC/DC converter integrates magnetic components to achieve high power density.

Bidirectional isolated resonant converter integrates inductor and transformer into shared magnetic core to reduce volume, weight, and loss.

Dynamic gate voltage adjustment in reverse-conducting insulated gate bipolar transistors minimizes conduction resistance during diode mode operation.

Operating at the lowest resonance frequency prevents unintended operating points, stabilizing the wireless power transfer process against efficiency losses.

An auxiliary power supply stabilizes a first capacitor charged via the output line, eliminating an expensive transformer auxiliary winding.

Replacing diodes with triacs in a totem pole converter enables bidirectional operation and eliminates the need for an inrush current limiting circuit.

Automated LLC converter design calculates magnetizing and resonant component values to ensure stable switching bridge operation.

A three-level LLC converter uses a fifth switch to short circuit primary switches and enable zero-voltage switching across the power stage.