Dc-Dc Conversion TRIZ Cases

A converter power circuit generates positive resistance to counteract input filter oscillations during transient charging periods.

A buck-boost converter circuit segments voltage stress across coupled inductors and transistors to optimize switching operations.

Added slope circuit generates a preliminary signal to enhance combined current detection magnitude.

Digital control replaces dedicated sequence chips, preventing overvoltage damage while simplifying single-board power supply structure.

A bidirectional insulated DC/DC converter adjusts AC fundamental wave pulse widths and phase differences to transmit power between circuits.

Autonomous control circuit switches power converter operating modes during negative voltage slew to reduce power dissipation and maintain efficiency targets.

A digital controller circuit senses output voltage and current to generate gate signals that adjust switching frequency and duty cycle.

Calculates optimal phase shifts using inductance ratios to cancel current vectors, reducing peak-to-peak output voltage ripple and capacitor loss.

Time-to-digital converter measures propagation delay to regulate buck converter voltage, eliminating static margins that increase power dissipation.

A four-terminal integrated circuit regulates output voltage and current using shared error current sinking through a single optocoupler.

Frequency modulation circuits generate clock signals with varying frequencies to shape spectral noise envelopes in switching regulators.

A spread spectrum control scheme modulates the switching frequency of a power converter using a PWM generator to distribute spectral energy evenly.

An asymmetric drive voltage control device prevents short-circuiting in silicon carbide transistors by eliminating temporal overlap between switching signals.

A control approach using input-output linearization and leading-edge modulation to manage boost and buck-boost converters.

A USB power supply apparatus adjusts its reference voltage to compensate for bus line drops.

Cascaded boost stages generate high output voltage using low-voltage switches, eliminating the need for multiple fixed power supplies.

Switched capacitor circuits toggle between gain and clamp modes to cancel offset variations while maintaining constant current output.

Segmenting inert element introduction into specific gate-side regions stabilizes drain current and enables normally-off operation.

A hysteretic voltage regulator uses a tunable resistance in its output driver current mirror to control the di/dt slew rate and set maximum switching frequency.

A DC-DC converter adjusts switching duty cycle to enable startup from input voltages as low as 200 mV.

A switching control circuit adjusts the reference current based on output voltage to manage transistor switching states.

A sequential shunt regulator uses PWM controlled power switches and current controllable switches to supply discrete and analog currents.

Switch controller terminates switching operations upon detecting overload or output short conditions, preventing switch damage from excessive drain current.

A bi-directional DC to DC converter uses an observer-based estimated current sensor module to simulate physical sensing.

A power supply device uses dead beat control with combined phase currents to accelerate multi-phase interleaving.

A switching regulator circuit generates an adaptive peak current limit threshold using a copied inductor current waveform to enable cycle-by-cycle monitoring.

A detection circuit uses a current source to generate a ramp voltage for identifying accessory presence at electronic contacts.

A DC-DC power converter balances phase currents using modified activation commands, reducing capacitor size and component stress.

A common reference voltage source coordinates parallel supplies to prevent uneven shutdown during load changes.

A buck converter circuit samples peak and valley currents to calculate average output current.

A switching power supply control circuit uses a boost circuit to drive the upper transistor without a bootstrap capacitor.

A motor drive uses voltage comparison to control transistor switching timing.

Suspended piezoelectric vibrators avoid lead terminal pressing forces that impede mechanical motion and degrade transformer characteristics.

A controller manages voltage switching through stepwise changes in active regulator count.

A semiconductor integrated circuit limits power switch current via a drive signal to execute soft turn-off operation.

A power converter modulates switching frequency to disperse electromagnetic energy across a wider spectrum.

A PWM controller calculates instantaneous input power to adjust duty cycle and regulate output voltage.

Detection control circuit varies phase compensation characteristics based on temperature variations to maintain stable output voltage.

Artificial ripple modulator control circuitry generates PWM signals using input and output voltage references to drive power switches.

A clamp circuit sets a lower limit for the error voltage in a switching regulator to accelerate mode transitions.

A USB power supply apparatus uses a selector and feedback circuit to regulate output voltage.

A state machine with timers controls four switches in a non-inverting buck-boost converter to manage mode transitions.

A power conversion apparatus counts excessive current occurrences to disable the power switch and prevent component damage.

Battery charging controller adjusts DC/DC converter output voltage via error amplifiers to resolve constant voltage limitations.

A controller generates phase-shifted PWM signals using synchronized ramp slopes to balance inductor currents across multiple phases.

A bi-directional regulator circuit generates stable voltage across power supply nodes using diode-connected MOS transistors.

A flyback converter adjusts input voltage by managing current flow between a second switch and transformer side to minimize switching loss.