Efficient Power Electronics Conversion TRIZ Cases

A bridgeless boost power factor correction circuit uses a common mode choke and X capacitors to filter high-frequency noise currents.

A snubber circuit using a series capacitor and diode accumulates and discharges charge to suppress surge voltage while reducing electrical power loss.

A power control circuit detects zero cross points using a high pass filter connected to a MOSFET drain.

A DC/DC converter adjusts gain across multiple operating modes to extend power supply hold-up time.

A switching voltage regulator adjusts switch on-times based on input and output voltages to optimize inductor charging.

A dual phase-shifted resonant converter eliminates the phase-locked loop to simplify circuit control and increase dynamic performance.

An adaptive zero cross adjusting circuit detects switching event effects on node voltage to manage timing.

A switching power supply device prepares an ideal voltage for the capacitor before switching from PFM to PWM mode.

A high-gain quasi-resonant DC-DC converter uses a bidirectional voltage doubling rectifier to boost output voltage.

A floating gate driver uses two capacitors and switches to charge a second capacitor from a first discharging current, driving high-side MOSFET gates.

A DC-DC converter uses interchangeable regulator parameter sets to switch between regulation modes for stable output voltage.

A power transmission system uses voltage switching control to alternate and periodically send different supply voltages from an upstream module toward a downstream control unit.

A dual-path power factor correction circuit enables zero voltage switching through independent commutation paths.

A control circuit adjusts feedback frequency characteristics based on voltage and duty ratio data.

A switch driver monitors boot capacitor voltage to trigger recharging pulses from the low-side circuit.

A multiphase controller reuses PWM and Enable pins as data buses to exchange configuration parameters with power processing circuits.

A power control module sequences PFC and DC-DC converter activation to reduce initial current demand.

A DC/DC converter controller manages MOS transistor shutdown sequences to maintain stable power conversion.

A DC-DC converter separates stability and output resistance using dual feedback loops, resolving transient load instability without sacrificing bandwidth.

A power converter circuit uses bipolar charging to maintain near zero average DC voltage across Class 2 MLCCs.

An intermediary circuit buffers the gate from direct connection, resolving noise sensitivity while enabling reliable leakage current cancellation.

Parallel diodes and tertiary windings suppress reverse recovery current, reducing energy loss in switching elements.

Segmented transformer windings separated by spacers lower AC resistance and common mode noise while maintaining high power efficiency.

A LED power supply device uses a unidirectional controllable switch to adjust output voltage levels across different modulation modes.

A control circuit dynamically adjusts synchronous rectification switch timing using previous cycle data.

Secondary-side control circuitry monitors voltage drops across load switches to limit power converter output during fault conditions.

A control circuit modulates switching signals to maintain zero voltage switching in resonant power converters.

Transformer leakage inductance enables zero volt switching to reduce switching loss and suppress surge voltage on output rectifier diodes.

A power supply circuit uses a remote-controlled transducer to trigger appliance activation from an off state.

An LLC resonant converter uses a second switching section with lower voltage input to reduce power consumption under no-load conditions.

III-N based switches replace diodes in bridgeless power factor correction circuits to enable high-frequency operation.

Burst mode control with zero net magnetising current reduces no-load power consumption while maintaining high efficiency.

A power converter varies leakage inductance through modulated secondary windings to match electronic device current requirements.

Detection pin and option selector circuit generate enable signals for multiple power converter modes without adding signal pins.

A two-stage power converter adjusts intermediate voltage dynamically to optimize energy conversion efficiency across varying load conditions.

Dynamic biasing balances collector-to-emitter voltages across bipolar junction transistors, correcting Early effect errors in analog multiplier circuits.

Parallel main and backup power supply loops ensure continuous LED operation when semiconductor devices fail in high temperatures.

Switched-mode cascode rectifiers reduce diode voltage loss to improve power conversion efficiency in AC-to-DC applications.

A silicon carbide device with a stripe-shaped trench gate structure includes a shielding region of second conductivity type contacting the gate bottom edge to reduce gate-to-drain capacitance.

Control device sets optimal sampling period to minimize switching cycle differences, improving average reactor current accuracy.

Synchronous rectification controller regulates gate voltage via dedicated pull-up and pull-down circuits.

Conditional sampling of the feedback voltage prevents energy peaks and electromagnetic interference during burst-mode operation.

A resonant circuit measures inductive element current to determine susceptor characteristics and heating state.

A power control device switches among operating modes to optimize peak current values and reduce standby consumption.

Segmented transformer windings with independent voltage sources reduce surge voltages caused by leakage inductance in center tap designs.

A controller generates PWM signals with adjustable zero and non-zero voltage periods within updating cycles to optimize switching operations.

A digital current sensor measures switching node voltage during dead-time to determine load current without analog components.

A soft start circuit uses a clock signal to intermittently charge a capacitor, ensuring consistent current delivery for stable voltage rise.

A power supply apparatus adjusts converter switching frequency based on load current to optimize energy transfer.