JPS62104586U - - Google Patents
Info
- Publication number
- JPS62104586U JPS62104586U JP19622685U JP19622685U JPS62104586U JP S62104586 U JPS62104586 U JP S62104586U JP 19622685 U JP19622685 U JP 19622685U JP 19622685 U JP19622685 U JP 19622685U JP S62104586 U JPS62104586 U JP S62104586U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- limit
- inrush current
- ratio control
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の回路図、第３図は電源投入時の動作を
説明するための各部波形図である。
１……交流電源、２１，２２，２３……スイツ
チング電源、３……整流器、４……平滑コンデン
サ、５……高周波トランス、８……電圧制御回路
、８１……誤差増幅器、８２……パルス幅制御回
路、８６……バイアス電源、８７……コンパレー
タ、９……電源スイツチ、１０，１３……突入電
流抑制抵抗、１２……タイマ、１５……リレー、
１８……コンデンサ、１９……定電流ダイオード
。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a conventional circuit diagram, and FIG. 3 is a waveform diagram of each part for explaining the operation when the power is turned on. DESCRIPTION OF SYMBOLS 1... AC power supply, 2 1 , 2 2 , 2 3 ... Switching power supply, 3... Rectifier, 4... Smoothing capacitor, 5... High frequency transformer, 8... Voltage control circuit, 8 1 ... Error amplifier, 8 2 ... Pulse width control circuit, 8 6 ... Bias power supply, 8 7 ... Comparator, 9 ... Power switch, 10, 13 ... Inrush current suppression resistor, 12 ... Timer, 15 ... Relay,
18... Capacitor, 19... Constant current diode.
Claims (1)
源投入時の突入電流を制限する一次制限回路を設
け、スイツチング電源の整流器と平滑コンデンサ
との間に直流出力の確立まで突入電流を制限する
二次制限回路を設けたスイツチング電源装置にお
いて、前記スイツチング電源は高周波トランスの
オン・オフ比制御を前記二次制限に入つた時点か
ら時間に対して一定傾斜で増大するオン・オフ比
制御電圧を得る電圧制御回路を備えたことを特徴
とするスイツチング電源装置。 A primary limiting circuit is installed in the input system from the AC power supply to the switching power supply to limit the inrush current when the power is turned on, and a secondary limiting circuit is installed between the switching power supply's rectifier and smoothing capacitor to limit the inrush current until DC output is established. In the switching power supply device, the switching power supply includes a voltage control circuit that obtains an on-off ratio control voltage that increases at a constant slope with respect to time from the time when the on-off ratio control of the high-frequency transformer enters the secondary limit. A switching power supply device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19622685U JPS62104586U (en) | 1985-12-20 | 1985-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19622685U JPS62104586U (en) | 1985-12-20 | 1985-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62104586U true JPS62104586U (en) | 1987-07-03 |
Family
ID=31154853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19622685U Pending JPS62104586U (en) | 1985-12-20 | 1985-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62104586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016122655A1 (en) | 2015-12-22 | 2017-07-27 | Mitsubishi Electric Corporation | CURRENT AND CONTROL METHOD |
-
1985
- 1985-12-20 JP JP19622685U patent/JPS62104586U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016122655A1 (en) | 2015-12-22 | 2017-07-27 | Mitsubishi Electric Corporation | CURRENT AND CONTROL METHOD |