Efficient Power Electronics Conversion TRIZ Cases

A secondary-side digital controller senses rectified voltage to detect primary-side faults without additional analog isolation circuitry.

A power supply apparatus manages switching operations between continuous driving and halt periods to improve energy efficiency.

A switching frequency adjusting circuit detects phase differences between inverter output voltage and current signals to align operation with the resonant frequency.

Active FET rectification in a three-phase LED power supply reduces energy losses and protects against overvoltage damage.

Segmented pulse frequency modulation control reduces noise and power consumption by enabling fine frequency adjustment without high-speed digital components.

A two-stage drive circuit derives timing from a transformer secondary winding and uses a stable voltage source to power the synchronous rectifier switch.

Multi-order resonant circuit selectively closes current paths to extend power supply holding-up time during voltage dips.

A control circuit reduces quiescent current by deactivating error amplifiers during light load operation.

A synchronous buck converter uses a replica transistor to sense load current without external components.

A scalable switched capacitor integrated buck regulator segments voltage conversion into two stages using series and parallel switch circuits.

Auxiliary circuit extends hold-up time without sacrificing efficiency or increasing bulk capacitance.

An active clamp circuit with an RC network manages gate drive signals.

A dual-stage power supply system uses overlapping module profiles to reduce transmission impedance and voltage fluctuations on mainboards.

A flyback converter uses a passive clamping circuit to redirect transformer leakage energy, minimizing conversion losses and enhancing power density.

A switching power supply halts transformer oscillation to stop energy output while keeping the control unit powered for immediate restart.

A wind power controller manages reactive current feeding to maintain grid stability.

Master-slave zero cross detection prevents reverse current flow by disabling low-side MOSFETs, reducing power losses and improving efficiency.

A coreless transformer gate driver circuit uses an air-core design to provide galvanic isolation without introducing magnetic interference.

A driver circuit determines secondary current indirectly using primary-side signals to regulate LED illumination.

A multiphase switching converter uses a daisy chain control circuit to dynamically adjust active phases, reducing switching losses when load current is low.

Current source injection discharges parasitic capacitances before turn-on, eliminating cross conduction losses and reducing electromagnetic noise generation.

A DC-DC converter sub switch control circuit generates signals from capacitor potential to manage switching states.

Variable frequency operation reduces switching loss and IGBT stress during light load conditions.

Dynamic threshold adjustment prevents three-level mis-triggering and reduces noise injection in EMI-sensitive mobile applications.

A synchronous buck regulator synthesizes inductor current during high-side switching using low-side measurements to generate a complete signal.

A multi-phase synchronous converter adjusts switching modes to extend operational flexibility.

Modulating zero voltage switching pulse periods on the secondary side encodes digital information for transmission across a flyback power transformer.

A single-stage power converter dynamically modulates switch duty cycle using digital control to optimize performance.

A transformer-based resonant power conversion apparatus featuring a secondary switch control unit that manages primary circuit activation states.

A driver circuit controls LLC switch cycling during startup to manage output voltage.

A switching power supply controller monitors output current to adjust switching operations for stable voltage regulation.

A single transformer inverter generates alternating current voltage using controlled bidirectional switching elements.

A primary-side controller senses current in the resonant power converter winding to limit AC signal frequency during overcurrent conditions.

A resonant inverter lowers switch operating voltage using multiple independent resonant circuits.

A high voltage tolerant output circuit uses a bias network to divide the output signal and protect internal transistor terminals.

A boost PFC circuit uses a single ASIC pin to detect multiple measurement signals at different times.

A flyback converter system selects primary or secondary feedback signals via a loop selector to control the PWM unit.

A power-on circuit uses a transducer and code driver to activate a supply via wireless signals.

A three-pin integrated synchronous rectifier merges control and power circuits into a single package to reduce external component count.

A resonant DC-DC converter detects voltage thresholds across capacitors to enable adaptive shutdown during overload conditions.

Scaled currents and a frequency divider enable precise oscillation control while preventing mode changes from boundary conduction.

A power source device segments the controller into a measuring portion and a calculating portion to enable intermittent switching operation.

Three-level power module uses synchronous rectifier switches to lower voltage drops, reducing static losses in aerospace applications.

Multi-level boost converter topology uses series diodes and a flying capacitor to manage high voltage levels.

A modular multilevel converter employs a middle converter arm to reduce cell count and minimize capacitor size.

A switching mode power converter utilizes transformer magnetization and leakage inductances to transfer energy between terminal pairs.

A power converter utilizes a secondary side body diode for synchronous rectification to minimize energy dissipation during operation.

A resonant DC to DC converter uses trailing edge modulation and amplitude modulation with synchronous rectification.

A power control device manages MOSFET driving signals through a unified terminal that handles both logic level switching and enable output functions.