Uninterruptable power supply

An apparatus for providing an uninterruptible power supply for an electronic device, comprising:

• (a.) a DC-to-DC power supply that receives an external DC voltage supply from a vehicle power supply and outputs a DC voltage to the electronic device comprising,
• a bridge rectifier that receives DC voltage from the external DC voltage supply and rectifies the voltage,
• a boost power factor correction (PFC) converter that boosts the rectified voltage from the bridge rectifier, and
• a line isolated DC-to-DC converter that changes the boosted voltage to the operating voltage range of the electronic device;
• and
• (b.) an uninterruptible power supply (UPS) subsystem comprising,
• a controller that monitors the external AC voltage supply for interruptions, and
• a high voltage isolated DC-to-DC (HVDC) converter that supplies high voltage DC power directly to the PFC converter if the controller detects an interruption in the external AC voltage supply.

An apparatus for providing an uninterruptible power supply for an electronic device, comprising:

• (a.) an AC-to-DC power supply that receives an external AC voltage supply in combination with an external DC voltage supply from a vehicle power supply as a backup voltage supply, where the power supply outputs a DC voltage to the electronic device comprising,
• a bridge rectifier that receives DC voltage from the external DC voltage supply and rectifies the voltage,
• a boost power factor correction (PFC) converter that boosts the rectified voltage from the bridge rectifier, and
• a line isolated DC-to-DC converter that changes the boosted voltage to the operating voltage range of the electronic device;
• and
• (b.) an uninterruptible power supply (UPS) subsystem comprising,
• a controller that monitors the external AC voltage supply for interruptions, and
• a high voltage isolated DC-to-DC (HVDC) converter that supplies high voltage DC power directly to the PFC converter if the controller detects an interruption in the external AC voltage supply.

An apparatus for providing an uninterruptible power supply for an electronic device, comprising:

• (a.) an AC-to-DC power supply that receives an external AC voltage supply in combination with an external DC voltage supply from a vehicle power supply and an external battery as a backup voltage supply, where the power supply outputs a DC voltage to the electronic device comprising,
• a bridge rectifier that receives DC voltage from the external DC voltage supply and rectifies the voltage,
• a boost power factor correction (PFC) converter that boosts the rectified voltage from the bridge rectifier, and
• a line isolated DC-to-DC converter that changes the boosted voltage to the operating voltage range of the electronic device;
• and
• (b.) an uninterruptible power supply (UPS) subsystem comprising,
• a controller that monitors the external AC voltage supply for interruptions, and
• a high voltage isolated DC-to-DC (HVDC) converter that supplies high voltage DC power directly to the PFC converter if the controller detects an interruption in the external AC voltage supply.