Ac-Dc Conversion TRIZ Cases

An auxiliary charge pump regulates MOSFET bias to reduce impedance in RFID transponder rectifiers.

Synchronous frame transformation models AC power converter impedance for stability assessment.

Using boosted node voltages as gate signals reduces P-channel transistor size and cost while managing high voltage stress in CCD power supplies.

A power converter uses a transformer and series capacitors to double output voltage while maintaining equal capacitor potential.

An ICM controller maps voltage-current relations via Schmitt triggers, eliminating current sensors and reducing harmonic distortions in power inverters.

Active transistor switches modulate capacitor frequency in a passive UHF transponder to reduce input capacitance and energy dissipation.

A method and device that control partial converters of asynchronous machines by determining a second degree of modulation based on the intermediate circuit voltage.

A bi-directional voltage to current converter regulates supply bus output current using pulse-width modulation control.

Detects current flow via inductive voltage drops to switch reverse-conducting IGBTs, reducing sensitivity to propagation time tolerances.

Segmenting battery packs into multiple series-connected groups reduces switching losses and component size while maintaining high efficiency under heavy loads.

A parallel semiconductor module pairs a silicon IGBT with a wide-bandgap MOSFET to route current through the path of lowest on-resistance.

Calibrates aging process coefficients in photovoltaic inverters to resolve measurement inaccuracies caused by device degradation.

Segmented switching frequency control lowers heat generation and device complexity while maintaining power quality.

Segmenting a charge pump circuit into parallel channels with alternating clock states resolves efficiency limits while generating triple supply voltage.

Segmented inverter circuits replace IGBTs with MOSFETs to reduce turn-on losses, achieving over 98% efficiency.

A clamping capacitor and absorption resistor manage overvoltage in single-phase HERIC topologies.

Segmented voltage detection circuits identify over-current failures without time delay elements, resolving detection speed and accuracy trade-offs.

A single series diode in the drive rectifier circuit enables one shunt-wound motor to handle both DC and AC voltages, eliminating separate motor variants.

A power converter alternates boost and PWM control to generate AC voltage from DC sources.

Capacitive attenuation feedback regulates charge pump slew rates, preventing non-volatile memory damage from rapid voltage transitions.

Decoupling capacitors and series-connected MMC modules eliminate inductances to suppress circulating currents, reducing ohmic losses.

A hysteresis control method predicts next-period bandwidth to correct current deviations in grid-connected inverters.

Multi-state switching cells segment voltage stress to reduce conduction losses and electromagnetic interference while maintaining high power density.

Segmented E-carriers and dynamic bus bar assemblies enable tool-less cell replacement while maintaining reliable electrical connections.

Clamp circuit and bias resistors limit voltage across transistors, preventing damage from surges during inactive states.

A battery management module executes monitoring routines using phantom software services and board support package resources.

A semiconductor device detects back electromotive force in a non-conduction phase using a differential amplifier circuit.

A converter sub-module uses an auxiliary circuit unit with one power semiconductor and diode to manage fault current flow into energy storage units.

A rate-of-voltage change detection circuit outputs a DC signal indicating voltage variation speed using capacitor differentiation and rectification.

A bidirectional switch power conversion device generates stable three-phase alternating current voltage using direct current and alternating current sources.

A variable frequency drive control system measures capacitor neutral voltage and current to detect filter capacitor faults using existing feedback circuits.

Dynamic modulation techniques resolve the contradiction between stability and power density by eliminating large inductors while maintaining efficiency.

Variable bipolar DC voltage control limits capacitor voltage oscillations at low machine frequencies in modular multilevel converters.

Replacing passive diodes with controlled MOS transistors reduces conduction energy loss while maintaining stable voltage levels across the load.

A multilevel power converter incorporates a third phase module branch and switching device to reduce module count by 25% while managing high output voltages.

A detection switch suppresses magnetic flux saturation and thermal energy generation in bridge-less power converter current transformers.

A surge voltage detection circuit accumulates high-speed switching transients using capacitors and diodes.

A gate-drive system transmits high-frequency power and signals via a single coil using frequency-selective receiving circuits.

A control logic links voltage-impressing and current-impressing modulation data to generate adaptive switching signals.

A shared voltage pump generates multiple internal voltages via selective transmission, reducing layout area and improving efficiency.