Dynamic duty cycle adjustment prevents hard switching and reduces energy loss during converter startup while maintaining steady state efficiency.
A switching control circuit integrates soft start and power limiting functions into a single terminal to reduce IC package size.
Pulse mode inverter control adjusts output frequency and width to conserve energy, reducing harmonic distortion while maintaining DC bus voltage.
A voltage step-down circuit stabilizes DC bus voltage in power converters by dynamically adjusting switching elements.
A control part calculates output current from a current transformer secondary voltage to reduce sensor count in switching power supplies.
Active converter input filter attenuates line-to-ground voltage transients and common mode currents, protecting motor bearings from insulation failure.
A semiconductor device delays switching state changes to shift oscillation frequencies outside the audible range.
Integrated controller modulates switching frequency via feedback and feed-forward signals, disabling burst signals in the audio band to reduce acoustic noise.
Partially resonant LC link circuits replace bulky DC storage capacitors, reducing device size and cost while maintaining efficient power conversion.
A multi-bridge power converter uses phase-shifted control signals to cancel fundamental frequencies in inductor currents.
A precharge circuit charges DC bus capacitance to transfer energy between busses before main rectifier connection.
A power controller adjusts delay time based on voltage valley detection to minimize switching losses.
Dynamic mode switching reduces output voltage and current distortions while correcting voltage drops in three phase AC power conversion.
Recovering transformer leakage inductance energy to power the drive circuit reduces power loss and stress on transistors.
A three-stage architecture with an unregulated intermediate section reduces ripple currents and component sizes while maintaining high efficiency.
Integrated power module design combining rectifying, capacitor, and inverting modules on a single circuit board.
A control system for free piston Stirling coolers limits drive voltage based on real-time temperature and collision data.
A drive control unit dynamically adjusts gate voltage to modify turn-off speed based on inter-terminal feedback.
On-time detection circuit distinguishes open-loop faults from short circuits, enabling immediate turn-off signals that prevent load damage.
Capacitors replace photo couplers to stabilize fluorescent lamp luminance.
A non-linear compensation system introduces a correction voltage to the inverter drive signal based on average output current thresholds.
A monolithic integrated circuit converts and isolates DC power using capacitive coupling instead of optical components.
A three-level inverter control section suppresses neutral voltage variations using a coordinate converter.
Auxiliary winding induces voltage to provide input and output information for power converter detection signals.
Active filtering converters regulate stator current to mitigate harmonic content, reducing mechanical stress and electrical losses in wind turbine power plants.
Dynamic bias current control resolves the trade-off between response speed and output stability across varying loads.
A control device manages neutral currents in electric power converters using independent modulation signals for rectifier and inverter stages.
Dual sensors feed an estimation circuit that calculates internal air temperature, resolving detection inaccuracies from thermal distance and fin clogging.
Setting carrier wave frequency as an integral multiple of modulation wave frequency prevents dwell period unbalance and phase unbalance during switching.
A switching element control method manages oscillation cycles in an induction heating device parallel resonant circuit.
A switch driving circuit adjusts dead time via phase detection to align high-side switch turn-on with resonance current changes.
Control circuit adjusts switching cycle groups and idle periods to keep average frequency outside the audible range, reducing transformer and capacitor noise.
Independent synchronous rectifier duty cycles prevent output voltage overshoot and undershoot without requiring inductor sensing or varying switching frequency.
A parallel transformer with dual coils reinjects opposing currents to limit residual flow in power systems.
A relay inductor performs voltage conversion by storing energy in its magnetic field during switching cycles.
A power supply system manages voltage transitions between operational states to maintain output accuracy.
Dynamic PWM duty cycle control balances transformer primary current to prevent DC flux accumulation and core saturation.
A capacitive column-based DC-to-DC transformer exchanges charge between nodes using controlled switches.
A switching power converter uses adaptive control to transition between conduction modes during startup.
A neutral point clamped converter discharges DC link capacitors by switching half-bridges to interconnect units through electrical filters.
A bi-directional DC-DC converter controller manages power distribution between multiple DC busses to maintain equal voltage levels across capacitors.
A power storage system dynamically switches between maximum power point tracking and voltage control modes to adjust boosting ratios.
A bidirectional DC-to-AC inverter manages power flow using non-linear frequency control to stabilize microgrid operations.
A pulse width modulation signal controlling apparatus uses a timer circuit to switch a single signal pin between core operation and external configuration.
Coupled differential mode inductors compensate for semiconductor variations that cause unbalanced current sharing in parallel UPS systems.
Cascade series resonant converters employ zero voltage switching assistance networks to balance voltage and reduce circulating currents in high voltage systems.
A switch control circuit adjusts power switch timing via zero crossing and feedback voltage sensing.
A power supply apparatus uses d-q domain techniques to generate waveform references and estimate phase for AC output control.
A phase shift full bridge converter adjusts switching modes based on detected load states to optimize power conversion efficiency.
Switchable inductors maintain zero-voltage switching in phase-shifted PWM bridges, reducing switching losses and electromagnetic interference at light load.