Efficient Power Electronics Conversion TRIZ Cases
- Resonant Converter Driving Module for Zero-Voltage Switching
Driving module reduces shift time until negative voltage disappears, preventing diode conduction losses and electromagnetic interference.
- Network Filter Protection via Dynamic Power Converter Actuation
Actuating the network-side power converter only during dangerous states damps perturbations, protecting the filter without adding costly protective elements.
- Switch Mode Power Supply Controller Off-Mode Feedback Pin
A switch mode power supply controller uses a feedback pin to detect off-mode conditions and drop output voltage without additional pins.
- Adaptive Intermediate Bulk Voltage Control for Power Converters
Dynamic bulk voltage adjustment reduces capacitor volume while maintaining hold-up time and improving light-load efficiency.
- Full-Bridge Resonant Circuit Phase Coherence
Symmetrically disposed inductors eliminate secondary side phase differences and high-frequency oscillations, lowering switch voltage stress.
- Shared Voltage Generating Unit for Circuit Size Reduction
A voltage generating unit produces a control voltage applied to both a monitoring unit and a voltage conversion unit.
- Single Inductor DC-to-DC Converter Circuit for High Efficiency
A voltage converter circuit uses a single inductor and capacitor to generate output voltage with reduced switching losses.
- Synchronous Rectifier Controller Soft Turn-Off
A synchronous rectifier controller uses a linear amplifier to inhibit discharge of the control terminal, enabling a controlled voltage transition.
- Synchronous Rectifier Control Circuit Adaptive Turn-Off
A control circuit adjusts drive voltage falling amplitude and shielding time for synchronous rectifier switches.
- LLC Circuit Over-Voltage Protection Feedback Control
Feedback circuit regulates LLC circuit operation to prevent over-voltage damage to electric loads in display devices.
- Switching Power Supply Zero Current Detection Timing Control
A switching power supply controller calculates synchronous rectifier on-time using inductor voltage and zero current detection signals.
- Web Content Protection via Canvas Text Rendering
Canvas-based text rendering transforms selectable web content into graphical images to prevent unauthorized copying.
- Resonant Power Supply Controller for Fast Transient Response
A resonant power controller uses a programmable delay line and comparator to generate gate drive signals.
- PFM DC-DC Converter Eliminates External Diodes
A PFM DC-DC converter uses synchronous MOSFETs to regulate load current without external diodes.
- Dual Mode DC-DC Converter Low Power Efficiency
A dual mode DC-DC converter reconfigures bridge switches to maintain high conversion efficiency across varying power levels.
- Charge Pump Parasitic Capacitance Energy Reuse Circuit
A charge pump circuit retrieves energy from parasitic capacitance during a reusing phase to power internal components.
- Insulation-Type Synchronous DC/DC Converter Idle Current Reduction
Synchronous rectifier controller integrates error amplifier and driver circuit on secondary side to manage transistor switching.
- Power Converter Filter Circuit Resonance Noise Suppression
A power converter filter circuit uses bypass capacitors and an inductor to reduce switching noise.
- ZVS+ZCS DC/DC Converter with Controlled Saturation Inductance
Integrated soft switching DC/DC converter uses controlled saturation inductance and RCD buffer circuit for high power conversion.
- Snubber Capacitor Drives Secondary FET Gate in Flyback Converter
A snubber capacitor stores energy to drive the gate of a secondary field effect transistor, resolving high-side voltage regulation challenges.
- Bidirectional DC-DC Converter With Active Clamp And MOSFETs
A bidirectional DC-to-DC converter uses an active clamp circuit with MOSFETs to enable flexible energy exchange across varying voltage levels.
- Power Conversion Device Soft Switching Control
A power conversion device adjusts duty cycles and phase shift to achieve zero voltage switching operation.
- Switching Voltage Regulator for Inductive Loads
A switching voltage driver uses a clamp element to dissipate energy from inductive loads during rapid off-cycles.
- Soft-Switched Bidirectional Buck-Boost Converter Active Snubber
Active snubber circuit controls rectifier turn-off rate and enables zero-voltage switching in bidirectional buck-boost converters.
- Half-Bridge ZETA Converter Zero Voltage Switching
Electronic half-bridge ZETA converter uses magnetization inductance to control capacitance charging and discharging for zero voltage switching.
- Power Supply Drooping Characteristic Control for Overcurrent
A power supply controller selects drooping characteristics based on detected load current to manage output voltage.
- Multi-Mode Timer Circuit for Seamless PWM PFM Transition
A multi-mode timer circuit controls switching cycles to enable seamless transitions between pulse width and frequency modulation modes.
- Power Converter Control Device for Low-Load Efficiency
A control device synchronizes rectifier on-durations to optimize power usage across varying load states.
- Voltage Regulator Control Circuit Slew Rate Reference Signal
A control circuit measures PWM duty cycle to generate a stable reference signal for voltage regulation.
- Electronic Converter Multi-Voltage Generation Without Magnetic Components
Selective capacitor charging eliminates bulky magnetic components and regulators, reducing cost and size.
- Electrosurgical Inverter PID Control for Impedance Adaptation
The system maintains constant power delivery across varying tissue impedances by dynamically limiting voltage and current through closed-loop feedback control.
- Power Supplier Voltage Drop Compensation via Dual Error Amplifiers
Dual error amplifiers in a power supplier detect load-side voltage errors, enabling the PWM generator to adjust duty cycles and compensate for line drops.
- DC-DC Converter Closed-Loop Control for Inrush Current Reduction
A DC-DC converter adjusts switching duty cycles via feedback to regulate output voltage dynamically.
- Timing Controlled AC to DC Converter for Implantable Devices
A timing controlled converter regulates output voltage by switchably coupling a time varying input signal to a load circuit.