Efficient Power Electronics Conversion TRIZ Cases

A predriver system switches between high and low supply voltages to drive power converter switches across operational modes.

Merged switched capacitor circuit produces multiple output voltages from one input, reducing device complexity and size versus cascaded converters.

A feed-forward mechanism transmits phase information as a digital signal to suppress output voltage ripple.

A depletion-mode HEMT DC-DC converter block uses dual positive supply voltages to minimize switching losses and enable high-frequency operation.

A power conversion apparatus uses switchable current paths within a second LC resonance circuit to optimize impedance characteristics for oscillation frequency.

A control unit determines operability of a resonant inverter by referencing pre-associated data linking output frequency and current-supplying time to allowable current values.

An oscillator circuit with cascode transistors transfers power across an isolation barrier using a transformer on an insulating substrate.

A rectifier circuit design utilizes a transformer intermediary to divert reverse recovery current away from the main switching path.

Dynamic mode switching eliminates bleeder resistors and reduces electromagnetic interference while maintaining power conversion efficiency across varying loads.

A magnetic integration double-ended converter uses a three-column core to reduce winding losses and leakage inductance.

A single-phase inverter uses a power supply-side resonant capacitor and output-side inductor to enable zero voltage switching.

A hysteretic DC/DC converter adjusts comparator speed via switched voltage paths to maintain output stability.

A secondary control circuit generates a constant frequency PWM signal transmitted via a communication transformer to a primary switching element.

Pulse frequency modulation reduces switching losses by adjusting switch impedance and timing based on real-time load current.

Valley skipping mode turns on the primary FET during subsequent resonant voltage valleys to enable zero-voltage switching.

A flyback converter controller activates partial zero voltage switching to recirculate energy and discharge output capacitance via a secondary transistor.

Independent PFC modules resolve output combination interference from earth-grounded neutrals, extending capacitor lifespan in data centers.

Control module regulates drive signals via feedback loops to limit output current during overloads while enhancing voltage linearity during soft-start.

Capacitive coupling between transformer output terminals reduces conduction losses at light loads while maintaining high efficiency across the operating range.

A controller adjusts switching period and peak current in a power converter to maintain regulated output.

Control circuit detects zero crossings in multiphase DC-DC converters to switch low side switches to active diode operation.

A bridgeless boost power factor correction circuit synchronizes input voltage with constant current using dual MOSFETs.

A bootstrap gate driver segments high-side and low-side paths to enable independent load-based control.

Replacing IGBT inverters with SiC devices and DSC controllers resolves switching speed versus loss trade-offs to improve dynamic response.

A PFC power controller uses boundary voltage detection to adjust switching duty cycles during load transients.

Segmented magnetic posts resolve the contradiction between automated winding manufacturability and limited modular circuit board area, improving power density.

Primary side current sensing via an active detection rectifier compensates for reverse currents to eliminate high temperature measurement errors.

Hysteretic mode control circuits adjust current limits to handle large output currents, resolving noise coupling and overvoltage protection issues.

A PFC DC/AC/DC converter uses a switchable threshold current to optimize transistor on-time.

Controller switches between frequency modulation and pulse width modulation signals to stabilize output voltage in power conversion circuits.

Segmented capacitors enable fast start-up and extended bridging of mains supply interruptions without adding transistors.

A single MOSFET provides self-oscillation and over-current protection using a tapped auto-transformer winding for regenerative feedback.

Active clamp flyback converter adjusts primary inductor current to maintain fixed output power during light load conditions.

A DC-DC converter uses a copied-current generating circuit to adjust peak current thresholds based on load conditions.

A DC/DC converter controller switches between steady state and transient modes to balance power stages.

Saturation detection triggers clamping to interrupt error voltage windup, resolving the trade-off between regulation accuracy and transient recovery time.

A single-chip control circuit integrates drive and charging functions to supply stable Vcc power.

A multiphase converter offsets voltage conversion unit startup times to prevent inrush currents.

A control circuit monitors external power supply current and voltage to adjust upper limit charging current.

An embedded magnetic core reduces eddy current and hysteresis losses at frequencies up to 10 MHz, enabling efficient operation below 1.5 W.

Delay units prevent switch misalignment and damage while reducing switching losses under light load conditions.

A phase adjustment circuit generates a delay signal and amplifies the difference between the error signal and the delay signal to produce a control signal.

Master-slave IGBT power factor correction circuit topology with anti-parallel slave diode configuration.

A current mode regulator circuit spans primary and secondary sides to rectify input signals and provide regulated output.

Discrete analog components implement peak current mode control to maintain efficiency and reliability under high ionizing radiation.

A controller selects peak current values to drive oscillating voltage at switching element valleys.

Independent inductors and a clamping capacitor reduce switch voltage stress, resolving efficiency losses from narrow ZVS ranges.

A switching regulator uses a duty detection circuit to turn off the high-side element.