JPH03117938U - - Google Patents
Info
- Publication number
- JPH03117938U JPH03117938U JP2498690U JP2498690U JPH03117938U JP H03117938 U JPH03117938 U JP H03117938U JP 2498690 U JP2498690 U JP 2498690U JP 2498690 U JP2498690 U JP 2498690U JP H03117938 U JPH03117938 U JP H03117938U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- output
- switch
- connection point
- switches
- 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 9
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Description
第1図は本考案のスイツチトキヤパシタ方式降
圧回路の一実施例を示す回路図、第2図はこの実
施例回路の各スイツチのタイムチヤート、第3図
は同じくこの実施例回路の各状態での等価回路図
、第4図は従来のスイツチトキヤパシタ方式降圧
回路の原理説明図である。
1,2……入力電圧端子、3,4……出力電圧
端子、S1〜S3N−1……スイツチ、C1〜C
N,CL……キヤパシタ。
Fig. 1 is a circuit diagram showing an embodiment of the switch capacitor type step-down circuit of the present invention, Fig. 2 is a time chart of each switch in this embodiment circuit, and Fig. 3 is a circuit diagram showing each state of this embodiment circuit. FIG. 4 is an explanatory diagram of the principle of a conventional switched capacitor type step-down circuit. 1, 2...Input voltage terminal, 3, 4...Output voltage terminal, S1 ~ S3N -1 ...Switch, C1 ~C
N, CL...capacitor.
Claims (1)
個のスイツチを有する回路を1つの単位とし、こ
れを(N−1)個接続するとともに、その終段の
接続点より1個のスイツチを通してキヤパシタを
入出力共通の端子と接続し、さらに前記初段のキ
ヤパシタの接続点より出力のスイツチを通してキ
ヤパシタを入出力共通の端子と接続して、その出
力のスイツチとキヤパシタとの接続点より出力電
圧を取り出す構成とし、前記各々のスイツチのオ
ン・オフの動作を制御することにより、1〜12
N−1の間で任意の整数分の1倍の出力を得るよ
うにしたことを特徴とするスイツチトキヤパシタ
方式降圧回路。 One capacitor and three
A circuit having 1 switches is considered as one unit, and (N-1) of these are connected, and a capacitor is connected to the input/output common terminal through one switch from the connection point of the final stage, and then The configuration is such that the capacitor is connected to a common input/output terminal through the output switch from the connection point of the capacitor, and the output voltage is taken out from the connection point between the output switch and the capacitor, and the on/off operation of each of the switches is as follows. 1 to 12 by controlling
1. A switch capacitor type step-down circuit, characterized in that it obtains an output multiplied by an arbitrary integer between N -1 .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2498690U JPH03117938U (en) | 1990-03-14 | 1990-03-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2498690U JPH03117938U (en) | 1990-03-14 | 1990-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03117938U true JPH03117938U (en) | 1991-12-05 |
Family
ID=31527930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2498690U Pending JPH03117938U (en) | 1990-03-14 | 1990-03-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03117938U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008099370A (en) * | 2006-10-06 | 2008-04-24 | Texas Instr Japan Ltd | Power supply circuit and battery device |
JP2013034298A (en) * | 2011-08-01 | 2013-02-14 | Institute Of National Colleges Of Technology Japan | Dc/dc converter and power supply module |
-
1990
- 1990-03-14 JP JP2498690U patent/JPH03117938U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008099370A (en) * | 2006-10-06 | 2008-04-24 | Texas Instr Japan Ltd | Power supply circuit and battery device |
JP2013034298A (en) * | 2011-08-01 | 2013-02-14 | Institute Of National Colleges Of Technology Japan | Dc/dc converter and power supply module |