JPS62183217U - - Google Patents
Info
- Publication number
- JPS62183217U JPS62183217U JP6963786U JP6963786U JPS62183217U JP S62183217 U JPS62183217 U JP S62183217U JP 6963786 U JP6963786 U JP 6963786U JP 6963786 U JP6963786 U JP 6963786U JP S62183217 U JPS62183217 U JP S62183217U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- operational amplifier
- voltage dividing
- feedback voltage
- zener diode
- 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 3
Landscapes
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の安定化直流電源の一実施例の
回路図、第２図は第１図の回路のブロツクダイヤ
グラム、第３図は一般的なツエナーダイオードの
ツエナー電流対ツエナー電圧温度変化量のグラフ
、第４図は従来例の回路図である。
Ｒ１〜Ｒ４……フイードバツク電圧分割用抵抗
、Ｒ５……ツエナーダイオードＤ１の電流設定用
抵抗、Ｄ１……基準電圧用ツエナーダイオード、
Ｄ２……出力電圧補償用ツエナーダイオード、Ｉ
Ｃ……演算増幅器、Ｑ……入力電圧から出力電圧
へのドロツパ用トランジスタ、Ｅ……基準電圧、
Ｖ……ツエナーダイオードＤ２の両端電圧、ＶＯ
……出力電圧、ＶＢＥ……トランジスタＱのベー
ス・エミツタ間電圧、Ａ……演算増幅器ＩＣのゲ
イン、ＩＺ……ツエナー電流、△ＶＺ……ツエナ
ー電圧の温度変化量。
Fig. 1 is a circuit diagram of one embodiment of the stabilized DC power supply of the present invention, Fig. 2 is a block diagram of the circuit shown in Fig. 1, and Fig. 3 is the amount of temperature change in Zener current versus Zener voltage of a general Zener diode. The graph of FIG. 4 is a circuit diagram of a conventional example. R1 to R4... Resistor for feedback voltage division, R5... Resistor for current setting of Zener diode D1, D1... Zener diode for reference voltage,
D2... Zener diode for output voltage compensation, I
C...Operation amplifier, Q...Dropper transistor from input voltage to output voltage, E...Reference voltage,
V... Voltage across Zener diode D2, VO
... Output voltage, VBE ... Base-emitter voltage of transistor Q, A ... Gain of operational amplifier IC, IZ ... Zener current, △VZ ... Amount of temperature change in Zener voltage.
Claims (1)
ードが接地に接続され、カソードが演算増幅器の
非反転入力端子に接続された基準電圧用ツエナー
ダイオードと、入力端子と前記基準電圧用ツエナ
ーダイオードのカソードの間に接続されたツエナ
ーダイオード電流設定用抵抗と、コレクタ、エミ
ツタ、ベースがそれぞれ入力端子、出力端子、演
算増幅器の出力端子に接続されたトランジスタと
、出力端子に一端が接続された第１のフイードバ
ツク電圧分割用抵抗と、第１のフイード電圧分割
用抵抗の他端に一端が接続された第２のフイード
バツク電圧分割用抵抗と、第２のフイードバツク
電圧分割用抵抗の他端にカソードが、アノードが
接地に接続された出力電圧補償用ツエナーダイオ
ードと、第１、第２のフイードバツク電圧分割用
抵抗の接続点と接地の間に直列に接続され、接続
点が前記演算増幅器の反転入力端子に接続された
第３、第４のフイードバツク電圧分割用抵抗とを
有する出力電圧温度補償型安定化直流電源。 an input terminal, an output terminal, an operational amplifier, a reference voltage Zener diode whose anode is connected to ground and whose cathode is connected to a non-inverting input terminal of the operational amplifier, and an input terminal and a cathode of the reference voltage Zener diode. a transistor whose collector, emitter, and base are respectively connected to the input terminal, output terminal, and output terminal of the operational amplifier; and a first transistor whose one end is connected to the output terminal. a second feedback voltage dividing resistor, one end of which is connected to the other end of the first feedback voltage dividing resistor; a cathode connected to the other end of the second feedback voltage dividing resistor; is connected in series between a Zener diode for output voltage compensation, which is connected to ground, a connection point between the first and second feedback voltage dividing resistors, and the ground, and the connection point is connected to the inverting input terminal of the operational amplifier. An output voltage temperature compensated stabilized DC power supply having third and fourth feedback voltage dividing resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6963786U JPH067375Y2 (en) | 1986-05-09 | 1986-05-09 | Output voltage temperature compensated stabilized DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6963786U JPH067375Y2 (en) | 1986-05-09 | 1986-05-09 | Output voltage temperature compensated stabilized DC power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62183217U true JPS62183217U (en) | 1987-11-20 |
| JPH067375Y2 JPH067375Y2 (en) | 1994-02-23 |
Family
ID=30910550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6963786U Expired - Lifetime JPH067375Y2 (en) | 1986-05-09 | 1986-05-09 | Output voltage temperature compensated stabilized DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067375Y2 (en) |
-
1986
- 1986-05-09 JP JP6963786U patent/JPH067375Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067375Y2 (en) | 1994-02-23 |
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