JPH0440315U - - Google Patents
Info
- Publication number
- JPH0440315U JPH0440315U JP7970390U JP7970390U JPH0440315U JP H0440315 U JPH0440315 U JP H0440315U JP 7970390 U JP7970390 U JP 7970390U JP 7970390 U JP7970390 U JP 7970390U JP H0440315 U JPH0440315 U JP H0440315U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- reference voltage
- transistor
- turned
- error amplifier
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
ダイオードの温度−順方向電圧特性を説明するた
めの図、第３図は本考案による温度保護回路の温
度−電流特性を示した図、第４図は従来の回路の
一例を示した図。
図中、１０，３５は温度保護回路、３１は基準
電圧回路、３２は誤差増幅器、３３は検出電圧制
御回路、３４は出力回路。
Figure 1 is a circuit diagram of an embodiment of the present invention, Figure 2 is a diagram for explaining the temperature-forward voltage characteristics of a diode, and Figure 3 is a diagram showing the temperature-current characteristics of the temperature protection circuit according to the present invention. FIG. 4 is a diagram showing an example of a conventional circuit. In the figure, 10 and 35 are temperature protection circuits, 31 is a reference voltage circuit, 32 is an error amplifier, 33 is a detection voltage control circuit, and 34 is an output circuit.
Claims (1)
一入力端子に入力した誤差増幅器と、該誤差増幅
器の他入力端子に接続した電圧制御回路と、前記
基準電圧回路と前記電圧制御回路との間に接続し
た温度保護回路とを有する安定化電源回路におい
て、前記温度保護回路として、抵抗器と複数のダ
イオードとトランジスタとの直列回路を前記基準
電圧回路に並列に接続した回路を用い、周囲温度
が所定値に達すると前記トランジスタをオンとし
て回路動作がオフとなるように構成したことを特
徴とする安定化電源回路。 a reference voltage circuit, an error amplifier into which the reference voltage of the reference voltage circuit is input to one input terminal, a voltage control circuit connected to the other input terminal of the error amplifier, and between the reference voltage circuit and the voltage control circuit. In the stabilized power supply circuit having a temperature protection circuit connected to the reference voltage circuit, the temperature protection circuit is a circuit in which a series circuit of a resistor, a plurality of diodes, and a transistor is connected in parallel to the reference voltage circuit, and the ambient temperature is A stabilized power supply circuit characterized in that the transistor is turned on and circuit operation is turned off when a predetermined value is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990079703U JP2546051Y2 (en) | 1990-07-30 | 1990-07-30 | Stabilized power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990079703U JP2546051Y2 (en) | 1990-07-30 | 1990-07-30 | Stabilized power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0440315U true JPH0440315U (en) | 1992-04-06 |
| JP2546051Y2 JP2546051Y2 (en) | 1997-08-27 |
Family
ID=31624101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990079703U Expired - Fee Related JP2546051Y2 (en) | 1990-07-30 | 1990-07-30 | Stabilized power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546051Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10512073A (en) * | 1995-01-13 | 1998-11-17 | オートトロニックス・エンジニアリング・インターナショナル・リミテッド | Electrical equipment |
| JP4732617B2 (en) * | 2001-06-08 | 2011-07-27 | セイコーインスツル株式会社 | Voltage regulator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4959952A (en) * | 1972-10-16 | 1974-06-11 | ||
| JPS6382952U (en) * | 1986-11-19 | 1988-05-31 |
-
1990
- 1990-07-30 JP JP1990079703U patent/JP2546051Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4959952A (en) * | 1972-10-16 | 1974-06-11 | ||
| JPS6382952U (en) * | 1986-11-19 | 1988-05-31 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10512073A (en) * | 1995-01-13 | 1998-11-17 | オートトロニックス・エンジニアリング・インターナショナル・リミテッド | Electrical equipment |
| JP4732617B2 (en) * | 2001-06-08 | 2011-07-27 | セイコーインスツル株式会社 | Voltage regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2546051Y2 (en) | 1997-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |