Ac-Dc Conversion Without Reversal TRIZ Cases

Interleaved switching cells in a bridgeless PFC converter reduce parasitic capacitance and EMI noise while maintaining high efficiency.

Integrated switched-mode device resolves complexity trade-offs by merging multiple supply functions into one universal unit that adapts to line variations.

A power factor correction circuit adjusts switching frequency based on inductor current ripple to reduce normal mode noise.

A power converter uses a parallel resonance circuit to mix low and high frequency components for efficient AC to DC conversion.

Bus centering device maintains central node voltage at ground potential using switching components, reducing aircraft weight and electrical discharge risks.

A load-selective input voltage sensor reduces power consumption by enabling sensing only during specific switching periods.

A hybrid AC and DC distribution system merges power buses to reduce electronic components in variable speed generator applications.

A switching mode power supply uses dynamic high-voltage charging to maintain operating voltage.

A mirrored snubber circuit recirculates energy between filter sections to mitigate voltage spikes in power converters.

A multi-phase autotransformer with delta-connected primary windings and phase-shifted secondary outputs consolidates power conversion into a single unit.

Feedback control adjusts converter switching states to reduce voltage imbalances between capacitors during power failures with small load currents.

Dynamic switching control eliminates diode bridge power loss while accepting full AC input waveforms.

UPS controllers embed stable identification data within network packets, resolving conflicts between fixed IP requirements and dynamic network reconfiguration.

An overvoltage limitation device transports power from input connections to output connections using an AC voltage converter and rectifier.

A controller adjusts a converter duty cycle based on inductor energy-releasing duration to track maximum power points.

A universal power supply connector accommodates both wye and delta connections through a shared rectifying module and bulk capacitor.

Placing a low frequency transformer before the power factor correction converter reduces heat generation and eliminates cooling requirements.

A controller adds an adjusting signal to a current-sense signal to generate a summation signal for switching control.

Auxiliary winding generates proportional voltage for comparator and counter circuitry to prevent output escalation without adding components.

A full resonant three-phase half-bridge cyclo-converter achieves soft switching through controlled frequency modulation.

Low-threshold voltage switching elements enable zero voltage switching and energy regeneration at light loads, reducing switching loss.

A driving circuit times a delay period after detecting an input signal peak to prevent false triggering caused by zero-crossing signal ripple.

Externalizing AC-to-DC rectification into the ignition exciter isolates electromagnetic interference from sensitive gas turbine engine control circuits.

Phase capacitors limit pre-charging current via reactance, eliminating resistive power losses and volume in frequency inverters.

A PFC controller circuit uses a differentiator and timer to detect inductor zero current.

FPGA-based digital power factor controller reduces harmonic currents and component size using sine-squared modulation.

A semiconductor switch monitoring circuit uses an opto-coupler series connection to detect switching status accurately.

A current controlled voltage source induces a balancing voltage proportional to AC current differences between parallel resonant converters.

A voltage level multiplier module generates additional output levels using series-connected circuit elements and switching pattern generators.

A secondary side switching controller detects voltage edges to generate turn-off signals.

Timestamped voltage data from pole-mounted monitors identifies outage locations without manual inspection, reducing response time.

An adaptive rectifier switches between boost and buck modes to stabilize DC output voltage across varying AC input ranges.

Periodic switching of a boost chopper maintains DC voltage stability without large smoothing capacitors, reducing device volume and weight.

An integrated voltage reduction circuit uses flyback capacitors and switching devices to deliver regulated power.

A power converter clamp circuit uses a series resistor and parallel switch to limit capacitor current.

A 3-level power conversion device calculates ON voltage errors using time ratios and current values to correct the voltage command.

Controller distributes short circuit currents by switching high and low legs to reduce freewheeling diode thermal loading.

AC/DC bidirectional converter recycles test energy, eliminating resistor waste and unifying AC/DC and DC/DC compatibility.

A bipolar power supply system uses transistor-based switching to change output polarity rapidly without mechanical relays.

A snubber circuit with a series diode and capacitor isolates regenerative currents from the main power path to enable precise inverter-side measurement.

A power supply apparatus maintains output signals during idle states using selective assistance units.

A transformerless high voltage power supply adjusts output voltage by dynamically changing the switching element driving frequency.

Chainable Power over Ethernet nodes use interchangeable ports to route power and data across multiple devices.

Aperiodic power pulses restore full output quickly, avoiding arc instability caused by reduced power levels.

A multi-input power system combines separate electrical signals from multiple adapters into a single regulated output.

Segmenting the converter into 12-pulse and 24-pulse paths reduces harmonic distortion while cutting weight by 43.6%.

A low-capacity power supply circuit uses a pulse generating circuit connected to the rectifier current path for zero-crossing detection.

Feedback control compensates low-frequency ripple in a buck circuit, reducing health risks from seizures and migraines.

A multi-stage rectenna filters radio frequency signals and shifts voltage to generate direct current.

A power converting device generates sine-wave-shaped current control ranges to maintain AC supply current within target boundaries.