JPS5497465A - Current detecting circuit - Google Patents
Current detecting circuitInfo
- Publication number
- JPS5497465A JPS5497465A JP473678A JP473678A JPS5497465A JP S5497465 A JPS5497465 A JP S5497465A JP 473678 A JP473678 A JP 473678A JP 473678 A JP473678 A JP 473678A JP S5497465 A JPS5497465 A JP S5497465A
- Authority
- JP
- Japan
- Prior art keywords
- current
- transistor
- terminal
- diode
- equal
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To detect the absolute value of current and integrate the circuit easily, by composing a simple constitution with two conductive transistors and one diode.
CONSTITUTION: When a diode 5 and a transistor 3, being matched with each other, work to make the forward voltage of the diode 5 equal to the base-emitter voltage of the transistor 3, the current flowing in the diode 5 is equal to the emitter current of the transistor 3. When the current flows out of a terminal 2, a transistor 4 is reversely biased, so that no current flows thereto. Therefore, the current flowing through the diode 5 from a reference voltage generating source 7 connected to a terminal 1 and s small base current of the transistor 3 are combined together to flow out of the terminal 2. As s result, a current equal to the remainder of the current flowing out of the terminal 2 minus double of the base current of the transistor 3 will be taken out of the collector of the transistor 3. Thus, the current equal to the absolute value of the current flowing in the terminal 2 may be taken out from a terminal 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP473678A JPS6031266B2 (en) | 1978-01-18 | 1978-01-18 | current detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP473678A JPS6031266B2 (en) | 1978-01-18 | 1978-01-18 | current detection circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5497465A true JPS5497465A (en) | 1979-08-01 |
JPS6031266B2 JPS6031266B2 (en) | 1985-07-20 |
Family
ID=11592184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP473678A Expired JPS6031266B2 (en) | 1978-01-18 | 1978-01-18 | current detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031266B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6040963A (en) * | 1983-08-17 | 1985-03-04 | Nec Corp | Electric current detecting circuit |
JPS6064264A (en) * | 1983-09-19 | 1985-04-12 | Nec Corp | Current detecting circuit |
JPH0781694A (en) * | 1993-09-17 | 1995-03-28 | Tokuzo Hirose | Flying object |
-
1978
- 1978-01-18 JP JP473678A patent/JPS6031266B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6040963A (en) * | 1983-08-17 | 1985-03-04 | Nec Corp | Electric current detecting circuit |
JPS6064264A (en) * | 1983-09-19 | 1985-04-12 | Nec Corp | Current detecting circuit |
JPH0522873B2 (en) * | 1983-09-19 | 1993-03-30 | Nippon Electric Co | |
JPH0781694A (en) * | 1993-09-17 | 1995-03-28 | Tokuzo Hirose | Flying object |
Also Published As
Publication number | Publication date |
---|---|
JPS6031266B2 (en) | 1985-07-20 |
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