JPS6416231A - Commercial switching circuit of no instantaneous disconnection for uninterruptible power supply - Google Patents
Commercial switching circuit of no instantaneous disconnection for uninterruptible power supplyInfo
- Publication number
- JPS6416231A JPS6416231A JP62169401A JP16940187A JPS6416231A JP S6416231 A JPS6416231 A JP S6416231A JP 62169401 A JP62169401 A JP 62169401A JP 16940187 A JP16940187 A JP 16940187A JP S6416231 A JPS6416231 A JP S6416231A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- power
- voltage balance
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
PURPOSE:To stop a flow of rush current to a capacitor in case of switching of power by providing an average voltage balance means and an instantaneous voltage balance means. CONSTITUTION:When the input current of a load 5 increases extraordinarily, an alternating switch operation circuit 38 makes a switch 4A on an invertor side OFF, but, at the same time, a signal making a switch 4B on a commercial side ON is outputted and power supply to the load 5 is switched to commercial power. At the same time, a control signal from an average voltage balance circuit 33 is inputted to a proportion integration adjustment circuit 14 through a soft start circuit 35 by an analog switch 34 in ON position. According to the constitution, an output voltage mean value of an uninteruptible power supply 3 is controlled so as to have the same value as a voltage mean value of the commercial power 2. Overcurrent of the load 5 is dissolved, and when power supply was returned to the uninteruptible power supply 3, a variation of voltage due to the switching of power is zero by the operation of the average voltage balance circuit 35 and the instantaneous voltage balance circuit 36.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169401A JPS6416231A (en) | 1987-07-07 | 1987-07-07 | Commercial switching circuit of no instantaneous disconnection for uninterruptible power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169401A JPS6416231A (en) | 1987-07-07 | 1987-07-07 | Commercial switching circuit of no instantaneous disconnection for uninterruptible power supply |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6416231A true JPS6416231A (en) | 1989-01-19 |
Family
ID=15885916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62169401A Pending JPS6416231A (en) | 1987-07-07 | 1987-07-07 | Commercial switching circuit of no instantaneous disconnection for uninterruptible power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6416231A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138840A (en) * | 1988-04-08 | 1992-08-18 | Kabushiki Kaisha Komatsu Seisakusho | Power transmission apparatus for internal combustion engine including supercharger |
JP2006007334A (en) * | 2004-06-22 | 2006-01-12 | Pascal Engineering Corp | Positioning device |
-
1987
- 1987-07-07 JP JP62169401A patent/JPS6416231A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5138840A (en) * | 1988-04-08 | 1992-08-18 | Kabushiki Kaisha Komatsu Seisakusho | Power transmission apparatus for internal combustion engine including supercharger |
JP2006007334A (en) * | 2004-06-22 | 2006-01-12 | Pascal Engineering Corp | Positioning device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0420628A3 (en) | Ac to dc to ac power conversion apparatus with few active switches and input and output control | |
JPS6448395A (en) | Discharge lamp exciter | |
EP0059053A3 (en) | Switched mode power supply | |
CA2296205A1 (en) | Switching power supply unit | |
EP0399236A3 (en) | Single input, single supply three-state controller | |
EP0415490A3 (en) | Circuit arrangement for power supply to a load | |
JPS6416231A (en) | Commercial switching circuit of no instantaneous disconnection for uninterruptible power supply | |
GB1523322A (en) | Dc to ac inverter | |
EP0190904A3 (en) | Series resonant converter | |
AU1497188A (en) | Two-wire loop electric circuit arrangement | |
JPS6412857A (en) | Semiconductor high voltage pump circuit device | |
JPS57129196A (en) | Control device for ac motor | |
SU1473006A1 (en) | Method of automatic control of a number of power transformers operating in parallel in transformer substation | |
JPS57204928A (en) | Stabilized power supply circuit | |
EP0103997A3 (en) | A.c. power control system | |
JPS55125093A (en) | Controlling device for dc motor | |
EP0234952A3 (en) | Electric power source | |
JPS6485569A (en) | Constant current control power device | |
JPS56122513A (en) | Electric power supply system | |
RU18810U1 (en) | DEVICE FOR VARIABLE AC VOLTAGE REGULATION | |
JPS57178470A (en) | Terminal feeding system | |
JPS56110479A (en) | Generating device of circuit constant | |
JPS6434137A (en) | Charging circuit | |
JPS6430439A (en) | Cooling fan control circuit | |
JPS6416256A (en) | Semiconductor device |