JPS54148220A - Power supply device with stabilized dc voltage - Google Patents
Power supply device with stabilized dc voltageInfo
- Publication number
- JPS54148220A JPS54148220A JP5650678A JP5650678A JPS54148220A JP S54148220 A JPS54148220 A JP S54148220A JP 5650678 A JP5650678 A JP 5650678A JP 5650678 A JP5650678 A JP 5650678A JP S54148220 A JPS54148220 A JP S54148220A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- capacitor
- power
- supply
- stable
- 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
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To effectively use the charge of a capacitor, by detecting a voltage proportional to the terminal voltage of the capacitor to control rectified outputs resulting from the outputs of DC-AC inverters for main power and auxiliary power connected in parallel with the capacitor.
CONSTITUTION: An input AC voltage Vi is rectified to a non-stable DC voltage by a bridge rectifier 20 and the capacitor 21. The DC voltage is changed into a raised or lowered high-frequency voltage by the DC-AC inverter for main power. The high-frequency voltage is applied to a rectification smoothing circuit 23 to supply a stable DC voltage Vo to a load. Similar operation is effected through the DC-AC inverter 24 for auxiliary power to supply a stable DC voltage through a bridge rectifier 25 and a capacitor 26. The voltage proportional to the terminal voltage of the capacitor 21 for both the power main and the auxiliary power is detected by a power failure detection circuit 27 to detect the supply failure of the input AC voltage Vi. When the supply failure is detected, a power failure signal C is generated to reduce the combined output. Thus, an allowable instantaneous power failure time can be varied depending on the condition of the load and the charge of the capacitor 21 can be effectively used.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5650678A JPS54148220A (en) | 1978-05-15 | 1978-05-15 | Power supply device with stabilized dc voltage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5650678A JPS54148220A (en) | 1978-05-15 | 1978-05-15 | Power supply device with stabilized dc voltage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54148220A true JPS54148220A (en) | 1979-11-20 |
Family
ID=13029001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5650678A Pending JPS54148220A (en) | 1978-05-15 | 1978-05-15 | Power supply device with stabilized dc voltage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54148220A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818722A (en) * | 1981-07-28 | 1983-02-03 | Nec Corp | Stabilized power supply |
EP0669704A2 (en) * | 1994-02-23 | 1995-08-30 | Koninklijke Philips Electronics N.V. | Switched-mode power supply for connection to a direct voltage source and for generating at least one regulated d.c. output voltage, and apparatus comprising such a switched-mode power supply |
KR100428780B1 (en) * | 2001-04-18 | 2004-04-27 | 삼성전자주식회사 | Apparatus for supplying power of preventing erroneous operation of facilities according to temporary interruption of electric power and semiconductor manufacturing facilities using this |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5014533B1 (en) * | 1971-03-30 | 1975-05-28 |
-
1978
- 1978-05-15 JP JP5650678A patent/JPS54148220A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5014533B1 (en) * | 1971-03-30 | 1975-05-28 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818722A (en) * | 1981-07-28 | 1983-02-03 | Nec Corp | Stabilized power supply |
EP0669704A2 (en) * | 1994-02-23 | 1995-08-30 | Koninklijke Philips Electronics N.V. | Switched-mode power supply for connection to a direct voltage source and for generating at least one regulated d.c. output voltage, and apparatus comprising such a switched-mode power supply |
EP0669704A3 (en) * | 1994-02-23 | 1996-07-31 | Philips Electronics Nv | Switched-mode power supply for connection to a direct voltage source and for generating at least one regulated d.c. output voltage, and apparatus comprising such a switched-mode power supply. |
KR100428780B1 (en) * | 2001-04-18 | 2004-04-27 | 삼성전자주식회사 | Apparatus for supplying power of preventing erroneous operation of facilities according to temporary interruption of electric power and semiconductor manufacturing facilities using this |
US6765314B2 (en) | 2001-04-18 | 2004-07-20 | Samsung Electronics Co., Ltd. | Power management system associated with semiconductor manufacturing facilities |
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