JPS6233683U - - Google Patents
Info
- Publication number
- JPS6233683U JPS6233683U JP12310485U JP12310485U JPS6233683U JP S6233683 U JPS6233683 U JP S6233683U JP 12310485 U JP12310485 U JP 12310485U JP 12310485 U JP12310485 U JP 12310485U JP S6233683 U JPS6233683 U JP S6233683U
- Authority
- JP
- Japan
- Prior art keywords
- section
- output
- drive current
- resistor
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の構成を示すブロツク図、第２
図は本考案の実施例に係るチヨツパ型昇圧回路の
回路図、第３図は従来型のチヨツパ型昇圧回路の
回路図、第４図はタイムチヤートである。
１……入力端子、２……電力蓄積部、３……逆
流防止部、４……フイルタ部、５……出力電流設
定部、６……誤差検出部、７……発振部、８……
比較部、９……第１スイツチング部、１０……第
２スイツチング部、１１……駆動電流調整部、１
２……駆動電流制御部、Ｒ１１……第１抵抗、Ｒ
１２……第２抵抗、Ｌ……インダクタンス素子（
電力蓄積部）、Ｄ……ダイオード（逆流防止部）
、Ｃ……コンデンサ（フイルタ部）、ＯＰ……オ
ペアンプ（誤差検出部）、ＯＳＣ……オシレータ
（発振部）、ＣＯＭＰ……コンパレータ（比較部
）、Ｑ１……トランジスタ（第１スイツチング部
）、Ｑ６……トランジスタ（第２スイツチング部
）、Ｑ７……トランジスタ（駆動電流制御部）。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a circuit diagram of a chopper type booster circuit according to an embodiment of the present invention, FIG. 3 is a circuit diagram of a conventional chopper type booster circuit, and FIG. 4 is a time chart. DESCRIPTION OF SYMBOLS 1... Input terminal, 2... Power storage section, 3... Backflow prevention section, 4... Filter section, 5... Output current setting section, 6... Error detection section, 7... Oscillation section, 8...
Comparison section, 9... First switching section, 10... Second switching section, 11... Drive current adjustment section, 1
2... Drive current control section, R 11 ... First resistor, R
12 ...Second resistance, L...Inductance element (
power storage section), D... diode (backflow prevention section)
, C... Capacitor (filter section), OP... Operational amplifier (error detection section), OSC... Oscillator (oscillation section), COMP... Comparator (comparison section), Q1 ... Transistor (first switching section), Q6 ...transistor (second switching section), Q7 ...transistor (drive current control section).
Claims (1)
て接続され、パルスを平滑するフイルタ部と、 このフイルタ部の出力電流を設定する出力電流
設定部と、 前記フイルタ部の出力電圧と基準電圧とを比較
し、その差電圧に比例した出力電圧を出力する誤
差検出部と、 発振部の発振電圧を基準電圧として、この基準
発振電圧と前記誤差検出部の出力電圧とを比較し
、制御パルスを出力する比較部と、 前記制御パルスの出力に基づいて、前記電力蓄
積部から前記逆流防止部を介して前記フイルタ部
に出力する状態と、出力を停止する状態とに切換
える第１スイツチング部と、 前記制御パルスに基づいて前記第１スイツチン
グ部に駆動電流を流す第１抵抗、および、この第
１抵抗に並列接続された第２抵抗と第２スイツチ
ング部からなる直列回路を有する駆動電流調整部
と、 前記出力電流設定部における設定出力電流が所
定範囲内にあるときに前記駆動電流調整部におけ
る第２スイツチング部を遮断し、前記設定出力電
流が前記所定範囲外にあるときに前記第２スイツ
チング部を導通させる駆動電流制御部 とを備えたチヨツパ型昇圧回路。[Scope of claim for utility model registration] A power storage section connected to an input terminal, a filter section connected to the output terminal of this power storage section via a backflow prevention section and smoothing pulses, and an output current of this filter section. an output current setting section that sets the output current of the filter section; an error detection section that compares the output voltage of the filter section with a reference voltage and outputs an output voltage proportional to the difference voltage; a comparison section that compares a reference oscillation voltage with the output voltage of the error detection section and outputs a control pulse; a first switching section that switches between an output state and an output stop state; a first resistor that causes a drive current to flow through the first switching section based on the control pulse; and a first resistor that is connected in parallel to the first resistor. a drive current adjustment section having a series circuit including a second resistor and a second switching section; and a drive current adjustment section that cuts off the second switching section in the drive current adjustment section when the set output current in the output current setting section is within a predetermined range. and a drive current control section that makes the second switching section conductive when the set output current is outside the predetermined range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12310485U JPS6233683U (en) | 1985-08-09 | 1985-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12310485U JPS6233683U (en) | 1985-08-09 | 1985-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6233683U true JPS6233683U (en) | 1987-02-27 |
Family
ID=31013899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12310485U Pending JPS6233683U (en) | 1985-08-09 | 1985-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6233683U (en) |
-
1985
- 1985-08-09 JP JP12310485U patent/JPS6233683U/ja active Pending
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