Emergency Power Supply Arrangements TRIZ Cases
- UPS Neutral-Ground Backup Switching for Grid Outage Reliability
A relay and fast switch device keep the UPS neutral-ground path available during grid loss, preventing ground disconnection and malfunctions.
- Emergency LED Driver Relay Timing to Prevent Hot Plugging
A delayed relay switchover lets the external LED driver discharge before battery takeover, preventing surge damage during mains interruptions.
- Series Power Injection in Line VFI UPS Bypass Mode
A series power injector and capacitor let a line VFI UPS bypass double conversion while correcting power deviations to preserve output quality.
- UPS Safety Switch Control With Normally Closed Coil Isolation
A transistor-controlled normally closed safety switch cuts UPS coil loss and cost while isolating AC input in battery mode to prevent shock.
- LED Emergency Driver Switching for Consistent Outage Illumination
A power switching module disconnects sensor-based dimming during outages, keeping LED emergency lighting steady until mains power returns.
- Modular UPS Bypass Circuit for Hot-Swappable Power Modules
A module interrupter and bypass circuit keep AC power flowing to the load while a UPS power module is fully isolated for replacement.