Efficient Power Electronics Conversion TRIZ Cases
- Wake Up Circuit for Power Switching Converter Burst Mode
Wireless wake up signals force switching-on during burst mode, reducing excessive output capacitance needs while maintaining rapid load response.
- Switching Power Supply Transistor Bridge Control
A switching power supply control unit varies the time order for switching midpoints between high and low values.
- Power Supply Controller Resonator Noise Suppression
A power supply controller uses a resonator in its feedback loop to suppress noise at predetermined frequencies.
- PFC Stage Voltage Control for Switching Power Supply Start-Up
A switching power supply adjusts its PFC stage target voltage during start-up to ensure reliable operation under varying AC input conditions.
- Switching Power Supply Voltage Threshold Indicator
A switching power supply uses a voltage threshold indicator to manage the on-off switching cycle of a buck converter.
- Voltage Regulator Cascaded Transistors Switching Efficiency
Segmented high-side devices handle switching transients to reduce power consumption and improve reliability.
- Power Conversion Device Interline Capacitor Noise Suppression
Graded interline capacitors suppress switching surge and conduction noise by altering direct current line impedance.
- Self-Tuning Zero Current Detection Circuit for DC-DC Converters
A self-tuning comparator circuit adjusts offset values to improve zero-current detection accuracy in power converters.
- DC/DC Converter Reverse Recovery Charge Elimination
Synchronous DC/DC converter circuit with segmented transistor switches and control logic to minimize reverse recovery charge.
- LLC Converter Voltage Adaptation via PFC Input Control
Dynamic frequency control of the LLC converter adapts to the PFC input voltage, delivering multiple USB-C voltages without extra DC-to-DC stages.
- Power Semiconductor Driving Circuit for Independent dV/dt and dI/dt Control
A power semiconductor driving circuit uses segmented resistors to control voltage and current rise rates independently.
- MCU Dimmer Switching TRIACs and IGBTs for LED Flicker
An MCU manages TRIAC and IGBT power switches to deliver adaptive phase angle control for non-linear AC loads.
- Diode Rectifier Harmonic Reduction via Control Device Injection
Control device injects specific harmonics into diode rectifier input, eliminating bulky EMC filters and lowering conductor cross-section requirements.
- LLC Resonant Converter Primary-Side Leakage Inductance Detection
Detecting primary-side voltage across a measuring resistor determines leakage inductance, eliminating secondary-side isolators and reducing circuit complexity.
- WBG Semiconductor Device With Monolithic Current Limiting
Monolithic current limiting circuits prevent thermal breakdown in wide band gap semiconductors while maintaining low ON resistance.