JPH0218115U - - Google Patents
Info
- Publication number
- JPH0218115U JPH0218115U JP9495688U JP9495688U JPH0218115U JP H0218115 U JPH0218115 U JP H0218115U JP 9495688 U JP9495688 U JP 9495688U JP 9495688 U JP9495688 U JP 9495688U JP H0218115 U JPH0218115 U JP H0218115U
- Authority
- JP
- Japan
- Prior art keywords
- input
- current
- amplifier
- output
- pass filter
- 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 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Control Of Electrical Variables (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案に係る定電流源の一実施例を示
す構成図、第２図はローパスイルタの特性を示す
特性曲線図、第３図は従来の定電流源の構成図で
ある。
１……基準電源、２……増幅器、３……トラン
ジスタ、５，１１，１２……抵抗、１０……ロー
パスフイルタ、１３……コンデンサ。
FIG. 1 is a block diagram showing an embodiment of a constant current source according to the present invention, FIG. 2 is a characteristic curve diagram showing characteristics of a low-pass filter, and FIG. 3 is a block diagram of a conventional constant current source. 1... Reference power supply, 2... Amplifier, 3... Transistor, 5, 11, 12... Resistor, 10... Low pass filter, 13... Capacitor.
Claims (1)
増幅器と、この増幅器の出力が入力されその位相
回転が９０°以下のローパスフイルタと、このロ
ーパスフイルタの出力が入力される電流制御素子
と、この電流制御素子に流れる電流を検出する電
流検出素子とを有し、この電流検出素子で検出し
た電流信号を前記増幅器に入力することを特徴と
する定電流源。 A reference power source, an amplifier to which the output of the reference power source is input, a low-pass filter to which the output of the amplifier is input and whose phase rotation is 90 degrees or less, a current control element to which the output of the low-pass filter is input; A constant current source comprising: a current detection element that detects a current flowing through a current control element; and a current signal detected by the current detection element is input to the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9495688U JPH0218115U (en) | 1988-07-18 | 1988-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9495688U JPH0218115U (en) | 1988-07-18 | 1988-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0218115U true JPH0218115U (en) | 1990-02-06 |
Family
ID=31319553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9495688U Pending JPH0218115U (en) | 1988-07-18 | 1988-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0218115U (en) |
-
1988
- 1988-07-18 JP JP9495688U patent/JPH0218115U/ja active Pending