Dc-Dc Conversion TRIZ Cases

A low-capacity power supply adjusts input capacitance via series capacitors and control switches to stabilize DC output voltage.

A MOSFET gate drive waveform uses fast and slow slew rate regions to control switching transitions.

A base current compensation circuit adjusts a reference voltage source to offset transistor base current errors in voltage regulators.

A voltage regulator circuit couples a low pass filter to the remote feedback loop, reducing transient ringing and noise coupling on PCB tracks.

Antiseries rectifiers in a dual voltage supply circuit prevent cross currents while a control circuit detects open circuit faults to ensure reliable power.

A battery charger adjusts its zero-crossing detection reference to maintain synchronization control during operation.

A three-phase buck-boost converter uses a single pulse-width modulating signal to control inductor current phases.

A multi-phase voltage regulator module adjusts active phase count via a load detecting voltage signal to match processor power requirements.

A switching regulator soft start circuit uses a peak detector and counter to generate a ramp voltage for controlled power-up.

Dual-phase gate charging minimizes switching losses by separating fast initial activation from precise voltage control, reducing conductive energy waste.

Dual control loops stabilize the converter across all duty cycles by eliminating subharmonic oscillations without requiring external ramp compensation.

Split inductors with magnetic coupling balance current across parallel modules, eliminating the need for inter-module communication.

A parallel capacitor absorbs voltage spikes in a DC voltage booster circuit, eliminating radio noise and rectifier response delays.

A single inductor voltage converter generates positive and negative outputs using four switches, reducing size and cost compared to dual-inductor designs.

Multi-sampling circuit measures discharge time via hold capacitors to enable soft switching and valley synchronization.

Multiple phase-shifted slave modules in a voltage regulator cancel switching currents, reducing total current ripple while maintaining fast transient response.

A switching-mode power supply uses a ramp signal generator to simulate output current for stable voltage regulation.

An adjustor controls the quick response width to prevent output voltage undershoots and ringbacks during dynamic load transients.

An adjustable ramp control scheme resolves the stability versus transient response trade-off by varying ramp amplitude according to duty cycle.

A DC/DC converter control circuit uses bottom detection and time-out logic to switch transistors based on auxiliary winding voltage states.

Compensator inductor transfers energy to main capacitor, reducing voltage droop without large capacitors.

Synchronizing the switching frequency with detected load current minimizes output voltage ripple, preventing display device image distortion.

Parallel H-bridge modules with transformer isolation enable efficient bi-directional power transfer for electric vehicle battery testing.

Segmented dual-loop control resolves the speed-stability trade-off in switching regulators by activating supplemental current feedback during load transients.

A power management device uses a multi-functional pin to detect voltage cycles and temperature signals for independent protection control.

A primary controller charges a bypass capacitor to power a secondary controller, resolving isolation energy transfer bottlenecks.

Sampling and storing flyback voltage history on the primary side eliminates parasitic impedance errors during isolation feedback.

A primary side controlled power converter uses auxiliary winding sensing to regulate output voltage without secondary components.

Differentiating auxiliary winding voltage detects the demagnetization stroke end, reducing ringing oscillation impact and eliminating expensive opto-couplers.

A redundant power supply control circuit isolates main power using switch elements to manage load delivery.

A minimum pulse-width assurance circuit extends short pulses using logic gates and feedback paths to maintain signal integrity.

Matching resonant frequencies across interleaved LLC converters reduces output ripple current variation for higher load capability.

A flyback power converter uses a multi-purpose circuit with resistors, diodes, and thermistors to regulate output voltage.