Dc-Dc Conversion TRIZ Cases

A switching voltage regulator uses a voltage-controlled oscillator to adjust PWM pulse duration based on feedback signals.

Discharge circuit rapidly removes stored charge from input smoothing capacitors during overvoltage events.

A turbo circuit activates power stages concurrently to boost voltage regulator output during load transients.

A digitally controlled non-inverting buck-boost DC-DC converter system locks the duty cycle to specific levels and applies reference voltage correction.

Separate feedback signals coordinate mode transitions to eliminate double switching losses and improve power density.

An on-chip error amplifier and off-chip capacitor introduce two zeros, simplifying Type III compensation for wide LC filter ranges.

A single-inductor multiple-output converter uses ordered-power-distributive control to manage inductor current across sequential output channels.

A voltage regulator uses a feedback circuit to adjust pole frequencies based on load current.

Capacitors and current sources simulate inductor voltage inside the PMIC, eliminating external test devices and reducing power consumption.

Voltage conversion unit shifts detection thresholds via divider circuits to prevent malfunctions when power voltage drops below safe operating ranges.

A peak-buck peak-boost current mode control scheme manages synchronous four-switch regulators.

A control circuit generates independent turn-on and turn-off timing signals for a switching transistor using sense voltage and optocoupler current.

Photovoltaic inverter switching devices activate only when input power meets a minimum threshold, reducing switching cycles and extending service life.

A load regulation compensation module cancels average offset voltage from switching currents, improving output voltage accuracy.

Dynamic phase management reduces switching losses in multiphase power supplies by adjusting active phase counts and duty cycles across varying load demands.

Bidirectional inductor current generates multiple supply rails, reducing circuit area while minimizing energy losses.

Segmenting output stages into compensated and uncompensated groups resolves the stability-speed contradiction while minimizing output ripple voltage.

Controller circuit generates ripple shaping current using auxiliary phase to reduce output ripple.

A switching power supply undervoltage protection circuit selects between error feedback and reduced control signals to manage transistor operation.

A SIMO power converter controller maintains minimum inductor current between cycles to ensure consistent energy delivery.

Delay compensation in hysteretic DC-DC converters eliminates DC error by adjusting the average regulated output value.

A power converter uses a resistor network to scale output current for low-voltage sensing.

A voltage reservoir supplies constant bursts to a switched load via controlled DC/DC conversion.

Alternating a second switch during shutdown recovers inductor energy to the battery, preventing power dissipation in high impedance loads.

Parallel CR filters with phase inversion reduce output ripple while maintaining fast response speed for accurate duty ratio conversion.

A DC-DC converter maintains a driving switching element in an on-state to reduce flow-through currents.

A control circuit determines the turn-on trough position to synchronize power switch activation with the previous cycle's ordinal number.

Dynamic threshold adjustment widens the load change range and improves response speed without increasing standby power consumption.

A filtering unit generates error correction voltages from pulse-width modulation signals to adjust duty cycles.

Segmented MPPT devices with boost converters track local maxima in uneven PV arrays, stabilizing voltage to maximize harvested energy.

A solar power inverter assigns priority values to photovoltaic inputs and limits DC-DC converter set values to optimize power extraction.

Segmented air gaps in the central and lateral branches of an X-core planar transformer minimize eddy current losses while maintaining compact height.

Control circuit detects snubber resistor voltage to determine discharge period boundaries, reducing estimation errors from unaccounted snubber current.

A controller calculates switching phase offsets to reduce input current ripple in power systems.

An optocoupler transmits threshold signals between high and low voltage battery subsystems, eliminating electromagnetic interference and shielding requirements.

An energy recovery snubber captures demagnetization and leakage inductance energy, reducing current stress on the output capacitor.

Auxiliary winding switching circuit selects voltage levels to protect pulse width modulation controllers.

A switching control circuit adjusts rectifier on-time to reduce main switch drain-source voltage.

A multi-winding converter apparatus exchanges power between three independent DC supplies using segmented full-bridge circuits and phase control.

Control circuit compares input current with instruction value to detect abnormal states in electric power conversion devices.

A variable current limiter adjusts output current inversely with voltage in non-isolated converters.

A hysteretic DC-to-DC converter generates a feedback signal by summing the output voltage with a ramp voltage proportional to inductor current.

A floor reference voltage generator uses adjustable resistor-capacitor paths to control a power converter's output voltage.

A vehicle power system uses a backup voltage source and relay to maintain stable threshold voltage for loads.

Feed-forward transient recovery circuit anticipates load changes to minimize output voltage ripple and improve buck converter response time.

Segmenting the controller into distributed units resolves complexity while enabling uniform interleaving of control signals for higher power density.

A current sensing circuit uses normally-on transistors to detect low-side switch currents.