JPS61155913U - - Google Patents
Info
- Publication number
- JPS61155913U JPS61155913U JP4046385U JP4046385U JPS61155913U JP S61155913 U JPS61155913 U JP S61155913U JP 4046385 U JP4046385 U JP 4046385U JP 4046385 U JP4046385 U JP 4046385U JP S61155913 U JPS61155913 U JP S61155913U
- Authority
- JP
- Japan
- Prior art keywords
- mos transistors
- power supply
- voltage
- voltage dividing
- down power
- 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
Landscapes
- Power Sources (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は本考案による降圧電源回路の一実施例
を示す回路図、第２図は第１図の回路においてコ
ンデンサＣ１がない場合の各部の動作波形図、第
３図は第１図の回路においてコンデンサＣ１があ
る場合の各部の動作波形図、第４図は降圧電源回
路の用途の説明に供する略線図、第５図は従来の
回路を示す回路図、第６図は第５図の回路の各部
の動作波形図である。
Ｑ１，Ｑ２……降圧用ＭＯＳ型トランジスタ、
Ｑ３〜Ｑ５……非直線性補償用ＭＯＳ型トランジ
スタ、Ｑ８……安定化用ＭＯＳ型トランジスタ、
Ｑ９〜Ｑ１３……ゲート電圧選定用ＭＯＳ型トラ
ンジスタ、Ｃ１……コンデンサ、ＶＤＤ……電源
電圧、ＶＭＣ……降圧電源、２０……安定化回路
。
FIG. 1 is a circuit diagram showing an embodiment of the step-down power supply circuit according to the present invention, FIG. 2 is an operation waveform diagram of each part in the circuit of FIG. 1 without capacitor C1, and FIG. 3 is the circuit of FIG. 1. 4 is a schematic diagram for explaining the application of the step-down power supply circuit, FIG. 5 is a circuit diagram showing a conventional circuit, and FIG. FIG. 3 is an operation waveform diagram of each part of the circuit. Q1, Q2... MOS type transistor for step-down,
Q3 to Q5...MOS type transistor for nonlinearity compensation, Q8...MOS type transistor for stabilization,
Q9 to Q13...MOS type transistor for gate voltage selection, C1...capacitor, VDD...power supply voltage, VMC...step-down power supply, 20...stabilization circuit.
Claims (1)
ンジスタと、これら分圧用のＭＯＳ型トランジス
タのゲート電圧を制御し当該分圧用のＭＯＳ型ト
ランジスタの非直線性を補償する複数のＭＯＳ型
トランジスタとを具え、電源電圧の供給を受け上
記分圧用のＭＯＳ型トランジスタの所定の接続中
点から降圧された降圧電源を取り出して負荷回路
に給電する降圧電源回路において、 ドレイン端子に上記電源電圧が印加され、ソー
ス端子に上記降圧電源が印加され、上記負荷回路
の変動に応じてドレイン電流を可変する安定化用
のＭＯＳ型トランジスタと、 上記電源電圧を分圧してその分圧電圧を上記安
定化用のＭＯＳ型トランジスタのゲート端子に与
える直列に接続された複数のＭＯＳ型トランジス
タと を具えることを特徴とする降圧電源回路。[Claims for Utility Model Registration] A plurality of voltage dividing MOS transistors connected in series and controlling the gate voltage of these voltage dividing MOS transistors to compensate for nonlinearity of the voltage dividing MOS transistors. In a step-down power supply circuit that includes a plurality of MOS transistors, receives a power supply voltage, extracts a step-down power source from a predetermined connection middle point of the voltage dividing MOS transistors, and supplies power to a load circuit. a stabilizing MOS type transistor to which the power supply voltage is applied, the step-down power supply is applied to the source terminal, and the drain current is varied according to fluctuations in the load circuit; A step-down power supply circuit comprising: a plurality of series-connected MOS transistors that provide a gate terminal of the stabilizing MOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4046385U JPS61155913U (en) | 1985-03-19 | 1985-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4046385U JPS61155913U (en) | 1985-03-19 | 1985-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61155913U true JPS61155913U (en) | 1986-09-27 |
Family
ID=30549369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4046385U Pending JPS61155913U (en) | 1985-03-19 | 1985-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61155913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010152911A (en) * | 1997-12-12 | 2010-07-08 | Hynix Semiconductor Inc | Internal voltage generation circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111514A (en) * | 1982-12-17 | 1984-06-27 | Hitachi Ltd | Semiconductor integrated circuit |
-
1985
- 1985-03-19 JP JP4046385U patent/JPS61155913U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111514A (en) * | 1982-12-17 | 1984-06-27 | Hitachi Ltd | Semiconductor integrated circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010152911A (en) * | 1997-12-12 | 2010-07-08 | Hynix Semiconductor Inc | Internal voltage generation circuit |
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