JPH0275989U - - Google Patents
Info
- Publication number
- JPH0275989U JPH0275989U JP15393288U JP15393288U JPH0275989U JP H0275989 U JPH0275989 U JP H0275989U JP 15393288 U JP15393288 U JP 15393288U JP 15393288 U JP15393288 U JP 15393288U JP H0275989 U JPH0275989 U JP H0275989U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- diode
- connection point
- ground
- series circuit
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例によるチヨツパ形レ
ギユレータの回路図、第２図は第１図の動作を示
すタイムチヤート、第３図ａ，ｂは従来のチヨツ
パ形レギユレータの回路図である。
１……入力直流電源、３，６，１０……コンデ
ンサ、４，２２……スイツチングトランジスタ、
７，８，１４……ダイオード、９，２０……チヨ
ークコイル、２１……ツエナダイオード、２３…
…制御回路。
FIG. 1 is a circuit diagram of a chopper type regulator according to an embodiment of the present invention, FIG. 2 is a time chart showing the operation of FIG. 1, and FIGS. 3a and 3b are circuit diagrams of a conventional chopper type regulator. 1... Input DC power supply, 3, 6, 10... Capacitor, 4, 22... Switching transistor,
7, 8, 14...Diode, 9, 20...Chiyoke coil, 21...Zena diode, 23...
...control circuit.
Claims (1)
スイツチング素子とコイルとの直列回路と、前記
第１のスイツチング素子とコイルとの第１の接続
点とグランドとの間に、電流方向がグランド側か
ら第１の接続点側になるように挿入される第１の
ダイオードとを備え、前記第１のスイツチング素
子をスイツチング動作させることにより負荷へ出
力直流電圧を供給するチヨツパ形レギユレータに
おいて、前記第１のスイツチング素子と並列に接
続されるコンデンサと第２のダイオードとの直列
回路であつて、前記第２のダイオードのカソード
が前記第１の接続点に接続される直列回路と、前
記コンデンサと第２のダイオードとの第２の接続
点と前記グランドとの間に電流方向がグランド側
から前記第２の接続点側になるように接続される
第３のダイオードと、前記第１のダイオードと前
記グランドとの間に接続される第２のスイツチン
グ素子と、前記第２のスイツチング素子のオン・
オフ動作を前記第１のスイツチング素子のオン・
オフ動作と逆相になるように制御する制御手段と
を備えたことを特徴とするチヨツパ形レギユレー
タ。 A current direction is connected between a series circuit of a first switching element and a coil connected between an input DC power source and a load, and a first connection point between the first switching element and the coil and the ground. and a first diode inserted from the ground side to the first connection point side, and supplies the output DC voltage to the load by switching the first switching element. A series circuit of a capacitor and a second diode connected in parallel with a first switching element, the series circuit having a cathode of the second diode connected to the first connection point, and a series circuit of the capacitor and the second diode. a third diode connected between a second connection point with the second diode and the ground so that the current direction is from the ground side to the second connection point side; and the first diode; a second switching element connected between the ground and the on/off state of the second switching element;
The OFF operation is controlled by the ON/OFF operation of the first switching element.
1. A chopper-type regulator characterized by comprising a control means for controlling the off-operation so that the phase is opposite to that of the off-operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15393288U JPH0275989U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15393288U JPH0275989U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275989U true JPH0275989U (en) | 1990-06-11 |
Family
ID=31430206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15393288U Pending JPH0275989U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275989U (en) |
-
1988
- 1988-11-25 JP JP15393288U patent/JPH0275989U/ja active Pending
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