Arrangements Responsive To Excess Voltage TRIZ Cases
- Voltage-Sensing Circuit Breaker for Fast Short-Circuit Isolation
Phase-angle voltage sensing replaces current measurement to detect short circuits quickly and trigger electronic and mechanical isolation.
- Protection Circuit With Free-Wheeling Energy Dissipation Loop
A rectifying free-wheeling loop and TVS diodes clamp overvoltage and dissipate fault energy with lower power loss and heating.
- Display Panel Overvoltage Circuit With Low-Loss Switch Isolation
A parallel protection module turns off the main switch above a preset voltage to limit voltage loss, block reverse current, and protect ICs.
- Resettable Electronic Fuse Circuit for High-Current Device Protection
A resettable electronic fuse interrupts fault current in power tools, battery packs, and chargers, then restores operation without fuse replacement.
- Resettable Electronic Fuse Circuit for High-Power Fault Recovery
Semiconductor switching and fault sensing replace one-time fuses in high-power tools and battery packs, cutting heat and restoring operation after faults.
- Lighting Load Disconnect for 277 V Overvoltage Protection
A monitored disconnect isolates 277 V lighting loads during overvoltage events and reconnects them when line voltage returns to a safe level.
- Split-Phase Open Neutral Detection Using Line-Neutral Current Mismatch
By comparing powered-line current with missing neutral return current, this case detects open neutral faults and interrupts supply to protect RV loads.
- Low-Voltage Circuit Breaker Using Phase-Angle Voltage Detection
Phase-angle voltage monitoring enables faster short-circuit interruption in low-voltage AC circuits without current sensors or delayed trip logic.
- Photodetector Pixel Circuit With Discharge Path for Power-Off Protection
A switch and discharge path prevent light-induced voltage buildup during power-off, protecting photodetector pixel circuits from damage.
- Thyristor Protection Circuit Monitoring Without Disconnecting Service
Grouped thyristor firing under snubber-current conditions checks firing capacity continuously without disconnecting the protected circuit.
- Resettable Electronic Fuse for High-Power Overcurrent Protection
A resettable electronic fuse interrupts fault current in power tools, battery packs, and chargers, then restores operation without fuse replacement.
- Vehicle Power Supply Protection Circuit for Reverse Polarity and Overvoltage
Diodes, Zener diodes, and relay switches protect a vehicle electrical network from reverse polarity and overvoltage without microcontrollers.
- Split-Phase Neutral Current Detection for Open Neutral Faults
Current monitoring on hot and neutral lines detects downstream open neutral faults and trips power before RV electrical devices are damaged.
- Surge Voltage Protection Apparatus with Automated Sensing
Automated electrical status sensing replaces manual testing, reducing time and cost while improving detection accuracy for power supply protection.
- Two-Stage Overvoltage Protection Circuit for Micro-USB Power Lines
Segmented protection circuits monitor power feeding lines and turn off switches when excessive voltage is detected, reducing internal circuit size.