Dc-Dc Conversion TRIZ Cases

A welding power source control circuit manages restriking capacitor charging timing across AC polarity transitions.

A trans-inductor voltage regulator uses nonlinear transformers to adapt inductance levels based on load current demands.

A reconfigurable multi-phase power converter circuit dynamically adjusts phase configurations to meet varying current demands.

Injecting a triangular wave into the feedback loop stabilizes output voltage without relying on uncontrollable capacitor ESR values.

Monitoring power switch voltage during maximum on-time distinguishes sense resistor shorts from low input voltage fluctuations, preventing false positives.

A modified pulse width modulation technique uses simultaneous rising and falling ramps to track input signal edges without clock cycle constraints.

A ripple voltage control circuit superimposes adaptive compensation on feedback signals to maintain steady-state accuracy in switching converters.

Frequency modulating the switching signal spreads spectral content across a wide bandwidth, reducing electromagnetic interference peaks by up to 17 dB.

A DC-DC converter control circuit synthesizes direct and alternating current feedback voltages to drive switching elements.

A segmented three-phase inverter architecture lowers the DC bus voltage per phase to minimize switching losses and component stress.

A power supply control apparatus corrects voltage variations in high, intermediate, and low voltage lines by controlling a DC-DC converter.

An intermediate decoupling capacitor absorbs excess charge during load release transients, minimizing output voltage overshoot and undershoot.

A circuit modifies ramp signal slope via a filter and current generator to restore power converter bandwidth.

An integrated circuit replaces discrete transistors in an isolating DC-to-DC converter to generate oscillation and drive the transformer primary winding.

A sliding mode controller modulates the hysteresis band dynamically to maintain constant switching frequency in multi-phase DC-DC converters.

A switching control circuit uses a peak-value detector to supply an accurate reference voltage to an inverting amplifier for precise triangle wave generation.

A controller unit generates comparison value signals to adjust peak and valley thresholds for a hysteretic switch control system.

Integrating a battery impedance model into the control loop compensates for counter-voltage, reducing overshooting and improving current tracing accuracy.

A circuit detects phase currents using shared elements when duty cycles stay below 100/N and unique sets during overlap.

A synchronous sampled comparator adjusts power FET switching via a programmable delay line to regulate DC voltage.

A digital current share bus interface processes output current signals into digital words to adjust power module outputs.

Dynamic switching bypasses limiting resistors when capacitive load voltage rises, preventing excessive startup current that degrades the DCDC converter.

Segmented inductance and capacitive switching resolve energy loss during PWM operation while maintaining effective electrical noise dampening.

Replacing high voltage starting resistors with a depletion transistor eliminates no-load power losses while maintaining reliable control unit operation.

Segmenting isolation paths allows a D flip-flop to resynchronize PWM edges against a precise clock, reducing jitter by ten times for accurate drive control.

A control circuit uses a sample hold mechanism to isolate coil current signals from output voltage variations.

Active ripple cancellation extracts the output voltage ripple and injects an opposing signal, eliminating conduction losses from passive filters.

Extended commutation cell uses modular cascaded switching to increase output levels while reducing switch count and improving fault tolerance.

A power converter system uses parasitic diodes to redirect inductor current during faults.

Segmenting buck and boost circuits reduces transformer size while maintaining stable power voltage for miniaturized devices.

Adaptable on-time durations in a switched mode power converter prevent unintended switching off caused by parasitic oscillations in inductor current.

A switching power supply unit uses a dedicated voltage detection transformer to monitor DC input levels.

A multi-phase converter controller generates digital current signals to produce on-time adjustment signals for precise switching circuit management.

A switch modulation method for multiphase stacked interleaved buck converters adjusts bridge arm states based on real-time charge-discharge information.

A semiconductor device uses a voltage clamp unit to monitor terminal voltage for chipping detection.

An auxiliary current source circuit dynamically adjusts power delivery to reconfigurable logic circuits.

A controller transitions a switching regulator between pulse-skipping and continuous-conduction modes to match dynamic current demands.

A PWM/PFM control circuit generates a differential time signal to adjust the reference oscillation frequency for smoother mode transitions.

Dual half-bridges generate arbitrary load voltages by extracting current ripple through the load, resolving complexity constraints in amplifier applications.

A predictive controller adjusts inductor current phases to minimize voltage deviations in switchable inductors.

A driver circuit generates S-shaped gate drive voltage curves to control power FET transition times.

A switching control circuit uses dual error voltage output circuits to regulate transistor drive signals for power supply applications.

A bargaining circuit adjusts feedback voltage through a single optocoupler to regulate transformer output in power conversion apparatuses.

An external monitoring circuit detects arithmetic device abnormalities and generates opening commands to release power interconnections.

A PWM controller adjusts drive signal duration based on overload severity to protect components.

A switch control circuit monitors transformer winding currents to dynamically adjust bridge switch durations.

A switching power supply circuit uses a signal generation unit and low pass filter to adjust control signals for stable output voltage.

Resonant coils in a weakly coupled transformer maintain galvanic isolation and conversion efficiency while reducing dimensions at kilohertz frequencies.

Alternating circuit branches accumulate charge into voltages to overcome analog-to-digital converter speed limits.

Level shifting converts bipolar inductor current to unipolar signal, simplifying control circuit complexity.