Ac-Dc Conversion Without Reversal TRIZ Cases

A direct AC power converter reduces peak currents in boost choppers by optimizing discharge duty cycles.

A soft-start voltage circuit employs a segmented capacitor switching mechanism to generate a controlled ramp.

A DC/DC transformer regulates current via a setpoint characteristic to prevent dangerous intermediate-circuit voltage rises during regenerative energy feedback.

A switch control device uses edge detection on full-wave rectification voltage to generate a synchronized reference signal for power switching operations.

A direct AC power converter limits inrush current via a series resistor, preventing clamp capacitor damage.

Bidirectional switches toggle inductor connections between parallel and series modes to raise the power factor and reduce total harmonic distortion.

Pre-charge circuit synchronizes transformer voltage with grid potential before switchgear closure to eliminate magnetising inrush currents.

A ripple current mode controller infers AC input current from charge samples to achieve high power factor without direct sensing.

Multi-electrode layout device distributes direct current energy to stabilize the arc, reducing eddy current loss and improving power factor.

Centralized DC power supply system provides adjustable voltage through redundant N+1 three-phase PWM rectifier modules.

A variable resistor dynamically adjusts resistance based on system and battery voltage differences to limit rush currents during module connection.

Divided coil groups on single-phase legs reduce transformer weight while maintaining reactance without a second iron core.

A control chip detects high-voltage pin connections to manage safety capacitor discharge.

Segmented switch circuits enable individual load control while reducing wire count and maintaining power supply continuity.

A single-stage buck-boost integrated circuit drives LEDs in constant power mode to eliminate external current sensing components.

Dynamic threshold adjustment reduces total harmonic distortion in on-time controlled power supplies without adding multiplier complexity.

Capacitors store energy during charging to enable delayed breaking, resolving the trade-off between operational flexibility and device complexity.

Segmenting input current across parallel buck converters enhances power factor while reducing component voltage stress and energy storage requirements.

A switching regulator uses dynamic reference current levels to control transistor states during overcurrent conditions.

A power factor correction controller uses clamping current to generate input peak voltage for over-voltage detection.

Power harvesting switch circuit extracts voltage via series Zener diodes to enable RF control without a neutral wire.

A Schottky diode circuit uses a parallel bypass branch with a voltage-dependent switch to limit forward voltage at high currents.

Replacing mechanical relays with a MOSFET and charge pump reduces no-load energy losses while maintaining effective inrush current limiting.

Segmented detection circuitry identifies abnormal input frequencies below 47 Hz or above 63 Hz, preventing main circuit damage from voltage irregularities.

AC/DC converter adjusts power factor and DC link voltage using multiple switch elements to reduce losses in complex circuit designs.

A conversion circuit board links a PTAC motherboard to multiple brushless DC motors via dedicated interface modules.

Pre-charging energy stores enables semiconductor protection means to handle short-circuit currents in power converters.

Segmenting the power path allows a dedicated capacitor circuit to supply the control unit without transformer oscillation, eliminating unnecessary energy loss.

A single capacitor absorbs regenerative current from inductive loads while smoothing voltage for direct-current circuits.

Switching power sources convert AC current for MRI loads while offsetting frequencies from the Larmor range.

Dynamically scales switching vectors to maintain DC bus voltage limits during overload conditions while maximizing power output.

A multilevel AC/DC converter control system manages power cells to optimize efficiency across varying load conditions.

Current transformers isolate sensing circuits from common mode noise, enabling accurate sampling without complex configurations.

A power circuit redirects overvoltage protection current to charge output capacitors through controlled switching operations.

A power converter uses a limiting resistor to control current flow to the DC capacitor during initial charging.

A feed forward control module adjusts switching frequency in a three-phase resonant cyclo-converter to maintain output voltage.

A transponder rectifier circuit with cross-coupled transistors modifies input impedance to limit antenna voltage levels.

Segmented HRPWM controllers with fine-resolution delay lines resolve precision-complexity trade-offs in wireless power transmission.

Replacing costly pulse generators with a simple RC-based reverse circuit lowers converter manufacturing expenses while maintaining reliable voltage conversion.

Segmenting AC power conversion into parallel bridges reduces magnetic component size while maintaining voltage regulation and surge resilience.

A bidirectional DC converter raises the valley value of the DC bus voltage to extend power delivery intervals.

A rectifier bridge with silicon controlled rectifiers pre-charges the DC bus capacitor during positive half cycles.

Symmetrical plate connections balance impedances across diodes in high-frequency welding power supplies.

A power conversion unit uses a series of lower voltage converters paired with flying capacitors to manage input energy distribution.

A multi-function circuit detects zero and peak current via a single node, eliminating separate detection hardware to reduce board size and manufacturing cost.

A flyback converter uses a dummy load circuit to generate current that maintains the internal voltage above a threshold.

Segmented component bars distribute current across parallel paths, reducing imbalance to 20 percent and enabling higher power rectification.

A capacitive voltage divider power supply charges a secondary capacitor via a bypass switch to deliver stable DC output.

Segmented boost cells lower switching losses and weight by replacing bulky inductors while isolating faults to improve reliability.