Dc-Dc Conversion TRIZ Cases

A SEPIC controller adjusts the switch duty cycle to maintain constant output voltage during frequency changes.

Load sharing device manages parallel power supply modules through common voltage control signals and individual output current detection.

A voltage regulator circuit uses a phase-lock loop to generate an error signal from the phase difference between a PWM signal and a reference clock.

A boost DC/DC converter uses a mask circuit to switch between pulse width modulation and pulse frequency modes based on load current.

Parallel bypass current generation eliminates active pull down clamps, reducing circuit losses and footprint in envelope tracking power supplies.

A multiphase converter adjusts ON-time periods via phase control signals to synchronize switches and achieve symmetric phase interleaving.

A sample-and-hold circuit copies active current sense signals to eliminate discontinuities caused by high-side and low-side switch non-overlap intervals.

Control logic applies variable slew rates to DAC inputs, reducing lag and overshoot during power converter voltage transitions.

A current regulating circuit samples output currents from parallel resonant converters and adjusts input voltages to ensure equal magnitudes.

Plant identification filter estimates poles and zeroes to tune controllers against worst-case design inefficiencies.

Transient recovery circuit detects output voltage deviations and couples the signal to high or low rails to correct transients.

A control unit adjusts switching durations based on measured current threshold crossing times to stabilize LED light output.

Charging circuit monitors primary coil voltage to enforce switching element state transitions via internal timers.

A parallel buck-boost and boost converter architecture switches operation states based on input voltage levels to maintain stable output.

A power supply switches between regulated and open-loop modes to average input power, limiting peak demand during high-load periods.

A voltage regulator uses parallel error amplifiers to control separate current source and sink transistors.

A multiple-phase power circuit uses a surge detection circuit to sample input voltage and stop PWM signals, preventing false over-voltage protection triggers.

Feedback network stabilizes switched mode power amplifier line and load regulation by correcting conventional topology bandwidth limitations.

Dynamic duty cycle thresholds adjust operating bands to reduce low-frequency AC ripple during buck-to-boost transitions.

Segmented feedback loops and a variable resistor adjust the feedback voltage independently, achieving -40 dB PSRR across all frequencies.

Auxiliary switch recharges bootstrap capacitor when leakage inductance energy is insufficient.

A voltage generating circuit reduces amplifier offset influence using bipolar transistors and resistor networks.

A single inductor buck-boost converter manages multiple output channels by dynamically switching between buck, boost, and buck-boost modes based on voltage levels.

Shared control signals enable synchronous hiccup detection across phases without dedicated buses, preventing latch-up and reducing complexity.

A DC-DC converter uses a mask adjusting circuit to control overcurrent detection timing.

A controller selects local minima based on previous cycle indices to stabilize switching frequency in power converters.

A transformer holdup circuit stores energy at high voltage to maintain power during source interruptions.

Dynamic synchronous switching extends duty cycle range beyond 0.5, reducing voltage stress on switches and enabling smaller magnetic components.

Dynamic threshold adjustment avoids forbidden frequency bands in switched-mode power supplies without bulky passive components.

A protocol control circuit uses a shared pin to transmit mode-dependent signals, resolving the contradiction between reliable function and increased pin count.

A deglitch circuit filters transient overvoltage indicators to stabilize output voltage in multi-phase DC-DC switching regulators.

Adjusting gate drive voltage dynamically resolves fixed design inefficiencies at light loads, improving overall system performance.

A hysteretic buck-boost converter adjusts switching frequency based on inductor current ripple to maintain regulated output voltage.

A voltage regulator uses a time-sharing controller and de-multiplexer to sequentially charge energy storage modules for multiple output voltages.

A non-isolated power supply controller processes diode voltage to generate a control signal.

A DCDC converter clock generation circuit uses a potential hold portion to maintain bias potentials during power interruptions.

Local control units manage multiphase DC-DC converter sub-units to enable or disable phases based on output current thresholds.

A booster circuit compensates switching element threshold voltages to enable stable voltage boosting on compact substrates.

A boost converter limits pre-charge current by pulsing a high-side FET to gradually charge capacitive loads.

A multi-phase SMPS controller activates multiple switches simultaneously to supply transient current based on load indication signals.

A high-voltage generation apparatus rapidly switches polarity using pre-charged capacitors and feedback control.

Electronic modulation replaces bulky transformers to transmit signals across isolation barriers while maintaining electrical isolation.

Reducing electronic components in the power conversion circuit lowers heat generation, eliminating extra volume and cost for thermal management.

A hybrid adaptive control algorithm unites global and local schemes to stabilize output voltage and current in DC-DC boost converters.

Separate buck and boost conversion circuits enable wide input voltage operation by eliminating shared component constraints.

A switchable power supply transitions bulk voltage levels to bias memory array transistors.

A constant time controller adjusts switch conduction times to maintain output voltage stability during steady load conditions.

A secondary-side controller monitors output parameters to select reference signals, eliminating analog coupling noise and improving stability.

Light-emitting circuits between input and protection stages enable visual anomaly detection without external instruments.

Inserting a sample and hold circuit in the current loop prevents sub-harmonic oscillations and mode switching during operation.