Dc-Dc Conversion TRIZ Cases

A shared AC-side converter and parallel transformer outputs enable independent MPPT while avoiding the efficiency and complexity penalties of two-stage PV inverters.

Sample-and-hold current emulation improves low-duty-ratio sensing accuracy and current balance in high-frequency multi-phase regulators.

A three-switch latch circuit fixes output voltage with fewer switches, reducing circuit size and easing vehicle installation.

A one-way capacitor discharge path and comparison control limit maximum on-duty, preventing transformer saturation with lower circuit cost.

Dynamic switching-frequency scaling tracks audio envelope and power draw to cut boost-converter losses while sustaining class D amplifier power.

Split DC-DC stages and a high-frequency transformer widen EV charging voltage range while avoiding oversized MOSFET switch demands.

A variable-slope ramp generator suppresses DCM burst pulses, stabilizing output voltage and improving converter efficiency.

Dynamic peak voltage control switches among passthrough, peak voltage, and current modes to cut PFM voltage error and ripple.

A periodic threshold synchronized to a reference clock locks switching frequency faster and with less noise sensitivity in hysteretic regulators.

A grounded ringing elimination switch dissipates residual inductor current during phase transitions to suppress EMI and stabilize output conversion.

When input voltage meets or exceeds the positive output, a bypass switch cuts switching loss while the inductor still powers additional outputs.

A ramp-based hysteretic offset control keeps DC-DC converter switching frequency stable despite delay, offset, temperature, voltage, and load variation.

A gate-connected field plate and integrated gate-source capacitor curb GaN gate-edge fields while keeping gate-drain capacitance low.

A CAN bus master-slave startup scheme synchronizes parallel boost converters to avoid inrush current, OCP trips, and load imbalance.

Dynamic DC voltage boosting uses current and temperature feedback to limit cable heating while maintaining safe power delivery to remote radio equipment.

Different feedforward gains during bus communication stabilize LED current against supply voltage dips and prevent visible flicker.

A disconnection detection circuit turns off output transistors and forces power-off to block abnormal current paths during supply or ground faults.

Series-connected decoupling capacitors in a multi-output SEPIC converter improve cross regulation and transient response while limiting ripple.

Reverse current detection and boot-voltage monitoring let switching pause at light load, cutting power use while keeping output voltage stable.

Direct inductor current sensing with capacitor-resistor filtering improves switching converter response and stability while limiting noise interference.

Drive-circuit abnormality detection and load-current protection help prevent body diode loss and rectifier damage in intermittent power supplies.

A combined step-up, step-down, and direct-coupling supply lets aerosol devices power heaters and other loads with different voltage needs.

Share control and saturation prevention circuits balance LDO and DC/DC load current to stabilize output voltage under varying inputs.

Decoupled SST control separates stored energy, power flow, and converter balancing to remove interference, cut capacitor size, and suppress voltage ripple.

Transformer voltage is used to switch off rectifying transistors at the right time, cutting power loss despite coil and transformer variation.

A Lie Group controller stabilizes off-grid PV micro-inverters under solar intermittency and transients without smart switches or external communication.

A switched two-capacitor snubber absorbs shutdown energy and limits DC-DC converter overvoltage and oscillation with low normal-operation losses.

Abnormality and load current detection limit current when rectifier drive signals fail, preventing body diode loss and MOS damage.

A control circuit detects output-voltage overshoot and briefly disables switches or activates a dummy load to keep a switching converter in regulation.

A secondary-side comparator tracks flyback input undervoltage through transformer turns ratio, avoiding extra isolation circuitry and cost.

A two-stage capacitor precharge uses a resistor, switch, and PWM control to smooth voltage transitions and suppress inrush current peaks.

A ramped reference voltage matched to initial output voltage cuts startup inrush current while reaching stable boost-converter output faster.

A relay-switched control scheme lets one converter deliver AC or direct DC output, avoiding extra DC/DC hardware while improving efficiency and noise.

A logarithmic input-voltage reference reshapes COT on-time to stabilize switching frequency and reduce crossover losses in wide-range SMPS.

A controlled dummy load keeps switching frequency above the audible range under light load, preventing converter noise with limited efficiency impact.

A field-plate and super-junction MOSFET layout cuts RDSON and COSS while avoiding costly 3D super-junction processing for low-voltage power use.

An MCU switches between phase and power compensation modes to stabilize BUCK-BOOST output ripple across changing operating states.

Phase-shift control drives a full bridge converter to offset inductive sensor reactive power across varied sensor and cable combinations.

Multiple carrier frequencies and phase shifts spread harmonic noise, helping power converters meet EMI limits without larger filters.

A master transfer circuit swaps the master role between sub-converters to balance switching stress and reduce phase imbalance during load changes.

A switchable parallel capacitance extends ZOS cut-off current range while limiting overvoltage and switching loss in commutation circuits.

Output-voltage feedback adjusts load line offsets during high-frequency transients to maintain safe margins and accurate power delivery.

Inductor-current mode selection switches between voltage and hysteresis control to cut low-load power use while maintaining regulation.

An inorganic insulating film bonds the support substrate on the Ga-polar side, protecting the N-polar plane to limit impurities, defects, and leakage.

A source-selection circuit lets one LLC converter switch among multiple power inputs with fewer switches, saving space and preserving efficiency.

Staggered gate-drive current in a buck regulator smooths switch turn-on, cutting current spikes and emissions without sacrificing efficiency.

A reset signal forces the switching circuit during startup so internal supply voltage reaches a stable operating level with lower power use.

Ripple cancellation cleans the current error signal in a digital switching converter, speeding duty-cycle response to load transients.

Boost windings around leakage flux paths cut ripple current and losses in switching converters while lowering magnetic saturation risk.

Adaptive high-side turn-on timing enables zero-voltage switching in active clamp flyback converters, cutting losses and EMI across varying voltages.