Multi-input power converter and uninterruptible power supply having the same
AssigneePhoenixtec Power Co., Ltd.
InventorCheng-Tan Lee
Life of this patent
Estimating the term…
Abstract
An uninterruptible power supply has first and second input terminals, first and second inductors, first and second AC switch units, first and second storing devices and a control unit. The first and the second inductors are electrically connected to the first and the second input terminals. The first and the second AC switch units are electrically connected to the first and the second inductors for conducting input currents. The control unit is electrically connected to the first and the second AC switch units which may be turned on and off thereby to control the first and the second inductors which charge the input currents and discharge the input currents to the first and the second storing devices.
Claims11
A multi-input power converter, comprising:
- input connection means having a first input terminal, a second input terminal and a reference ground terminal for electrically connecting to and receiving input currents from an input power system;
- inductor means having a first inductor and a second inductor electrically connected to the first and second input terminals of the input connection means for charging and discharging the input currents;
- switch means having a first AC switch unit and a second AC switch unit electrically connected to the inductor means for conducting the input currents;
- rectifier means having
- a first rectifier comprising
- a ninth diode having a cathode and an anode, and the anode connected to the first inductor and the first AC switch unit;
- and
- a tenth diode having a cathode connected to the anode of the ninth diode and having an anode;
- and
- a second rectifier comprising
- an eleventh diode having a cathode connected to the cathode of the ninth diode and having an anode;
- and
- a twelfth diode having a cathode connected to the anode of the eleventh diode, the second inductor and the second AC switch unit and having an anode connected to the anode of the tenth diode;
- output storing means having a first storing device and a second storing device electrically connected to the rectifier means for receiving the rectified inductor currents and charging voltages when the inductor means is discharged, wherein
- the first storing device is connected between the cathode of the ninth diode and the reference ground;
- and
- the second storing device is connected between the reference ground and the anode of the tenth diode;
- and
- switch control means having a control unit electrically connected to the first and the second AC switch units of the switch means to control the inductor means charging the input currents and discharging input currents to the output storing means by controlling the first and the second AC switch units turning on and turning off.
Dependencies are inferred from the claim text.