Efficient Power Electronics Conversion TRIZ Cases

Coordinated frequency and duty factor regulation enables zero-voltage switching in resonant converters.

An active self-synchronized rectifier transfers DC power across an isolation barrier using a microfabricated transformer.

A switching controller adapts pulse-frequency modulation signals to stabilize power conversion circuits.

A pre-charge circuit charges the DC blocking capacitor to a steady-state value before controller startup.

An emulated ripple generator synthesizes a feedback signal in-phase with inductor current to regulate output voltage.

A control circuit disables the primary switch when auxiliary voltage falls outside a predefined range to maintain stable power conversion.

Magnetic coupling converts series inductor current into an average signal exceeding a reference voltage, enabling accurate control.

A ripple suppression circuit uses a filter and follower stage to reduce output noise in power systems.

Width detecting circuit detects pulse width changes to adjust phase signal turn-on timing, reducing voltage drops during load transitions.

A secondary controller generates turning-on signals via auxiliary windings to drive power converter operation.

Hysteretic control loop detects output voltage fluctuations to stabilize power supply operation during load changes.

A bypass circuit dynamically modulates inductor conductivity to manage energy transfer during load transients.

Detecting drain-source voltages generates isolated driving signals, eliminating parasitic inductance from current transformers.

A voltage control circuit superimposes input and bootstrap voltages to fully turn on switching transistors during shutdown.

Dynamic deadtime adjustment using zero-cross detection to enable zero voltage switching in buck converters.

A switching power supply detects input power to dynamically adjust active and stop periods in burst mode operation.

Dynamic dead time adjustment based on measured voltage transition time reduces switching loss and maintains high efficiency across varying load conditions.

Interconnected DC bus control circuit stops operation when current exceeds limits to ensure uniform input voltages across parallel converters.

Segmented divider units distribute voltage across alternating inductor and capacitor networks, lowering component stress and cost for high-power transmission.

Switching frequency limiting circuitry constrains the switching control signal of a power converter to optimize operational parameters.

Multiphase LLC converter balances phase currents via active and passive sharing, reducing stress and maintaining flat efficiency curves.

A full-bridge inverter employs n-channel MOSFETs with circular current flow to drive high-frequency loads.

A resonant isolated active power factor correction rectifier uses a bi-directional switch and resonant capacitor to enable zero-voltage switching.

A volt-second metric integrates reduced secondary-side voltages to estimate winding current for synchronous rectification.

Laminated metal plate in semiconductor package reduces main circuit inductance, lowering power loss and voltage spikes.

A feed-forward driver controls LED power using discontinuous mode switching without monitoring load voltage or current.

A control method generates current signals using feedforward compensation during mode transitions.

A synchronous rectifier controller adjusts its green mode entry threshold based on secondary side output voltage levels.

Parallel detection circuit replaces auxiliary windings to simplify design and improve efficiency by eliminating extra components.

A feedback circuit modulates impedance via a switching resistor network to optimize power usage across varying load conditions.

ON time generators adjust switching intervals using current imbalance integrals, eliminating low-pass filters that degrade load transient response.

A drive circuit adjusts output transistor current capability based on conduction mode.