Published on March 11, 2014
Applications ◦ Standby source for “critical” loads (computer) ◦ Primary source when normal ac not available Uninterrupted Power Supply (UPS) ◦ 2 common configurations
Normal condition ◦ Main supply applied to the load ◦ Rectifier keeps batteries charged Main supply failure ◦ Inverter supplies power to the load ◦ When interruption is over, main supply is applied to the load
Normal condition ◦ Inverter operates continuously, powering the load ◦ Rectifier maintains the charge on the batteries ◦ Inverter conditions the supply to the load Inverter failure ◦ Main supply powers the load
Main supply failure ◦ Battery supplies the inverter ◦ Inverter powers the load Normal conditions ◦ Inverter operates as a bridge rectifier ◦ Main supply powers the load
Switched-mode Resonant Bidirectional
Two inverters ◦ Input side: operates at high-frequency ◦ Reduces size of transformer and DC filter components at the input of the output-side inverter
Two inverters continued ◦ Output side: operates at output frequency
Two inverters ◦ Input side is a resonant inverter ◦ Output side operates with PWM control at the output frequency
Output inverter and Rectifier are combined into a cycloconverter (converts one frequency ac into another frequency ac) Power flow in either direction
Four conversions AC-DC – DC-AC – AC-DC – DC-AC Ultimately an AC – AC Conversion
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency ...
Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu.
Online shopping for Uninterruptible Power Supply (UPS) from a great selection at Electronics Store.
An uninterruptible power supply (UPS) is a device that allows your computer to keep running for at least a short time when the primary power source is lost.
A simple guide to understanding and buying an uninterruptible power supply: backup UPS types, reviews, selection. Also find operation theory, schematics ...
Gamatronic Gamatronic is the ... Gamatronic’s efficient uninterrupted power supply solutions will guarantee your peace of mind! Gamatronic Electronic ...
UPS Ltd offer an industry-leading 24/7 power protection solutions service to ensure business's systems are always 'ON'.
good quality Uninterrupted Power Supply from Shenzhen SORO Electronics Co., Ltd. - China High Frequency Online UPS exporter, China Low Frequency Online UPS ...
UNINTERRUPTED POWER SUPPLY PowerMust 1513S /2018S /3027S NetGuard, Line Int., IEC Features Pure Sine Wave High flexibility with rack/tower design
Uninterrupted Power Supply, Buy Various High Quality Uninterrupted Power Supply Products from Global Uninterrupted Power Supply Suppliers and Uninterrupted ...