JPH0394087U - - Google Patents
Info
- Publication number
- JPH0394087U JPH0394087U JP151390U JP151390U JPH0394087U JP H0394087 U JPH0394087 U JP H0394087U JP 151390 U JP151390 U JP 151390U JP 151390 U JP151390 U JP 151390U JP H0394087 U JPH0394087 U JP H0394087U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching
- rectified
- output
- voltage
- 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
- 230000010356 wave oscillation Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の実施例を示すブロツク図、
第２図は従来のスイツチング電源回路を示すブロ
ツク図である。
Figure 1 is a block diagram showing an embodiment of this invention.
FIG. 2 is a block diagram showing a conventional switching power supply circuit.
Claims (1)
力をスイツチング回路でスイツチングし、そのス
イツチングされた出力をトランスを介して二次整
流回路で整流し、その整流出力電圧を電圧検出回
路で検出し、その検出電圧を比較回路で基準電圧
と比較し、三角波発振回路の出力三角波信号を上
記比較結果に応じたパルス幅のパルス信号に変換
し、そのパルス信号で上記スイツチング回路をス
イツチングして上記二次整流回路の出力電圧を所
定値とするスイツチング電源回路において、 上記三角波発振回路は外部信号入力端子を有し
、その外部信号入力端子に供給される外部信号に
同期して発振する引き込み発振回路とされている
ことを特徴とするスイツチング電源回路。[Claim for Utility Model Registration] AC power is rectified by a primary rectifier circuit, the rectified output is switched by a switching circuit, the switched output is rectified by a secondary rectifier circuit via a transformer, and the rectified output voltage is is detected by a voltage detection circuit, the detected voltage is compared with a reference voltage by a comparison circuit, the output triangular wave signal of the triangular wave oscillation circuit is converted into a pulse signal with a pulse width according to the above comparison result, and the above switching is performed using that pulse signal. In a switching power supply circuit that sets the output voltage of the secondary rectifier circuit to a predetermined value by switching the circuit, the triangular wave oscillation circuit has an external signal input terminal and is synchronized with an external signal supplied to the external signal input terminal. A switching power supply circuit characterized in that it is a pull-in oscillation circuit that oscillates when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP151390U JPH0394087U (en) | 1990-01-10 | 1990-01-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP151390U JPH0394087U (en) | 1990-01-10 | 1990-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0394087U true JPH0394087U (en) | 1991-09-25 |
Family
ID=31505417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP151390U Pending JPH0394087U (en) | 1990-01-10 | 1990-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0394087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136593A (en) * | 2004-11-15 | 2006-06-01 | Kita Denshi Corp | Chair cover for game parlor |
| JP2007325877A (en) * | 2006-06-09 | 2007-12-20 | Aruze Corp | Game machine |
-
1990
- 1990-01-10 JP JP151390U patent/JPH0394087U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136593A (en) * | 2004-11-15 | 2006-06-01 | Kita Denshi Corp | Chair cover for game parlor |
| JP2007325877A (en) * | 2006-06-09 | 2007-12-20 | Aruze Corp | Game machine |