JPH0421185U - - Google Patents
Info
- Publication number
- JPH0421185U JPH0421185U JP6206490U JP6206490U JPH0421185U JP H0421185 U JPH0421185 U JP H0421185U JP 6206490 U JP6206490 U JP 6206490U JP 6206490 U JP6206490 U JP 6206490U JP H0421185 U JPH0421185 U JP H0421185U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- diode
- rectifying
- secondary winding
- capacitor
- 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.)
- Granted
Links
- 238000009499 grossing Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 7
- 239000003990 capacitor Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の概念的構成ブロツク図、第２
図は本考案の一実施例を示す電気的回路図、第３
図は第２図の回路の動作説明図、第４図は従来装
置の構成ブロツク図、第５図は動作説明図である
。
１０……コンバータ部、２０……電圧監視回路
、３０……整流平滑化回路。
Figure 1 is a conceptual block diagram of the present invention;
The figure is an electrical circuit diagram showing one embodiment of the present invention.
2 is an explanatory diagram of the operation of the circuit shown in FIG. 2, FIG. 4 is a block diagram of the configuration of the conventional device, and FIG. 5 is an explanatory diagram of the operation. 10... converter section, 20... voltage monitoring circuit, 30... rectification smoothing circuit.
Claims (1)
スイツチング素子Ｑによりオンオフし、当該トラ
ンスの二次巻線Ｎ２に発生するスイツチング信号
を当該二次巻線の陰極側にアノード端子が接続さ
れたダイオードＤ２で整流し、当該ダイオードの
カソード端子と当該二次巻線の陽極側とを接続す
るコンデンサＣ２で平滑化して直流電圧を発生す
るコンバータ部１０と、 この二次巻線の陰極側にカソード端子が接続さ
れたダイオードＤ４と、このダイオードのアノー
ド端子と当該二次巻線の陽極側とを接続するコン
デンサＣ４を有し、このダイオードとコンデンサ
の接続点の電圧を出力する整流平滑化回路３０と
、 コンバータ部の出力電圧を正電圧源、この整流
平滑化回路の出力電圧を負電圧源として用い、当
該整流平滑化回路の出力電圧を用いて前記一次巻
線に印加される直流入力電圧の電圧を監視する電
圧監視回路２０と、 を具備することを特徴とする入力電圧監視回路を
有する電源装置。[Claims for Utility Model Registration] A DC voltage is applied to the primary winding N1 of the transformer, which is turned on and off by the switching element Q, and the switching signal generated in the secondary winding N2 of the transformer is applied to the cathode side of the secondary winding N1. a converter section 10 that generates a DC voltage by rectifying it with a diode D2 whose anode terminal is connected to the DC voltage, and smoothing it with a capacitor C2 connecting the cathode terminal of the diode and the anode side of the secondary winding; It has a diode D4 whose cathode terminal is connected to the cathode side of the winding, and a capacitor C4 that connects the anode terminal of this diode to the anode side of the secondary winding, and the voltage at the connection point of this diode and the capacitor is A rectifying and smoothing circuit 30 that outputs, using the output voltage of the converter section as a positive voltage source and the output voltage of this rectifying and smoothing circuit as a negative voltage source, and using the output voltage of the rectifying and smoothing circuit to supply voltage to the primary winding. A power supply device having an input voltage monitoring circuit, comprising: a voltage monitoring circuit 20 that monitors the voltage of applied DC input voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990062064U JPH0811057Y2 (en) | 1990-06-12 | 1990-06-12 | Power supply device having input voltage monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990062064U JPH0811057Y2 (en) | 1990-06-12 | 1990-06-12 | Power supply device having input voltage monitoring circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0421185U true JPH0421185U (en) | 1992-02-21 |
| JPH0811057Y2 JPH0811057Y2 (en) | 1996-03-29 |
Family
ID=31590876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990062064U Expired - Lifetime JPH0811057Y2 (en) | 1990-06-12 | 1990-06-12 | Power supply device having input voltage monitoring circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0811057Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068631A (en) * | 2008-09-11 | 2010-03-25 | Funai Electric Co Ltd | Reduced-voltage detecting circuit and switching power-supply system |
| JP2020504589A (en) * | 2017-09-22 | 2020-02-06 | オッポ広東移動通信有限公司 | Power supply circuit, power supply device and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61239864A (en) * | 1985-04-15 | 1986-10-25 | Chujo Oku | Production of seasoned hard-boiled egg |
| JPH0176189U (en) * | 1987-11-11 | 1989-05-23 |
-
1990
- 1990-06-12 JP JP1990062064U patent/JPH0811057Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61239864A (en) * | 1985-04-15 | 1986-10-25 | Chujo Oku | Production of seasoned hard-boiled egg |
| JPH0176189U (en) * | 1987-11-11 | 1989-05-23 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068631A (en) * | 2008-09-11 | 2010-03-25 | Funai Electric Co Ltd | Reduced-voltage detecting circuit and switching power-supply system |
| JP4678429B2 (en) * | 2008-09-11 | 2011-04-27 | 船井電機株式会社 | Switching power supply system |
| JP2020504589A (en) * | 2017-09-22 | 2020-02-06 | オッポ広東移動通信有限公司 | Power supply circuit, power supply device and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811057Y2 (en) | 1996-03-29 |