JPS6238089U - - Google Patents
Info
- Publication number
- JPS6238089U JPS6238089U JP13015485U JP13015485U JPS6238089U JP S6238089 U JPS6238089 U JP S6238089U JP 13015485 U JP13015485 U JP 13015485U JP 13015485 U JP13015485 U JP 13015485U JP S6238089 U JPS6238089 U JP S6238089U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- winding
- switching
- rectifying
- 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
- 238000004804 winding Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
- Ac-Ac Conversion (AREA)
Description
第1図は本考案の第1の実施例を示す回路構成
図、第2図は本考案の第2の実施例を示す回路構
成図、第3図は本考案の応用例を示す回路構成図
、第4図及び第5図は同上に用いられる定電流源
を示す回路構成図、第6図は従来例を示す回路構
成図である。
1は交流電源、2は定電圧回路、3はスイツチ
ング制御回路、4は電圧変換回路、Tはトランス
、L1は1次巻線、L2は2次巻線、L3は3次
巻線、Q1〜Q2はトランジスタ、Ryはリレー
、rは常閉接点、C2はコンデンサ、R1,R2
は抵抗である。
Fig. 1 is a circuit diagram showing a first embodiment of the invention, Fig. 2 is a circuit diagram showing a second embodiment of the invention, and Fig. 3 is a circuit diagram showing an application example of the invention. , FIG. 4 and FIG. 5 are circuit configuration diagrams showing a constant current source used in the same, and FIG. 6 is a circuit configuration diagram showing a conventional example. 1 is an AC power supply, 2 is a constant voltage circuit, 3 is a switching control circuit, 4 is a voltage conversion circuit, T is a transformer, L 1 is a primary winding, L 2 is a secondary winding, L 3 is a tertiary winding , Q1 to Q2 are transistors, Ry is a relay, r is a normally closed contact, C2 is a capacitor, R1 , R2
is resistance.
Claims (1)
路と、該整流平滑回路出力をトランスの1次巻線
に直列に接続されたスイツチング素子をスイツチ
ングすることにより出力巻線である2次巻線及び
補助巻線である3次巻線に電圧を誘起する電圧変
換回路と、該電圧変換回路のスイツチング素子の
スイツチングを制御するとともに電圧変換回路が
動作した後はトランスの3次巻線に誘起された電
圧を整流した電圧にて動作するスイツチング制御
回路と、上記整流平滑回路出力を安定化しツエナ
ダイオード及びツエナダイオードのバイアス抵抗
からなる定電圧回路と、該定電圧回路にて上記ス
イツチング制御回路が起動されたとき定電圧回路
のツエナダイオードのバイアス電流を遮断する動
作制御手段とを備えて成るスイツチング電源装置
。 A rectifying and smoothing circuit converts AC power supply voltage into DC voltage, and the output of the rectifying and smoothing circuit is connected to the primary winding of the transformer by switching a switching element connected in series to the secondary winding, which is the output winding, and the auxiliary winding. A voltage conversion circuit that induces a voltage in the tertiary winding, which is a winding, and a voltage conversion circuit that controls the switching of the switching element of the voltage conversion circuit, and after the voltage conversion circuit operates, the voltage induced in the tertiary winding of the transformer is controlled. a switching control circuit that operates with a rectified voltage; a constant voltage circuit that stabilizes the output of the rectifying and smoothing circuit and consists of a Zener diode and a bias resistor of the Zener diode; and the switching control circuit is activated by the constant voltage circuit. and operation control means for cutting off the bias current of a Zener diode in a constant voltage circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13015485U JPS6238089U (en) | 1985-08-27 | 1985-08-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13015485U JPS6238089U (en) | 1985-08-27 | 1985-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6238089U true JPS6238089U (en) | 1987-03-06 |
Family
ID=31027381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13015485U Pending JPS6238089U (en) | 1985-08-27 | 1985-08-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6238089U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6485572A (en) * | 1987-09-25 | 1989-03-30 | Nec Corp | Starting circuit for switching power source |
JPH0265673A (en) * | 1988-08-26 | 1990-03-06 | Matsushita Electric Works Ltd | Inverter apparatus |
JPH0630566A (en) * | 1992-04-27 | 1994-02-04 | Elmo Co Ltd | Power device for incandescent lamp |
-
1985
- 1985-08-27 JP JP13015485U patent/JPS6238089U/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6485572A (en) * | 1987-09-25 | 1989-03-30 | Nec Corp | Starting circuit for switching power source |
JPH0265673A (en) * | 1988-08-26 | 1990-03-06 | Matsushita Electric Works Ltd | Inverter apparatus |
JPH0630566A (en) * | 1992-04-27 | 1994-02-04 | Elmo Co Ltd | Power device for incandescent lamp |