JPS5572218A - Programmable current power supply - Google Patents
Programmable current power supplyInfo
- Publication number
- JPS5572218A JPS5572218A JP14748578A JP14748578A JPS5572218A JP S5572218 A JPS5572218 A JP S5572218A JP 14748578 A JP14748578 A JP 14748578A JP 14748578 A JP14748578 A JP 14748578A JP S5572218 A JPS5572218 A JP S5572218A
- Authority
- JP
- Japan
- Prior art keywords
- value
- output
- relay
- input
- resistance
- 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
- Control Of Voltage And Current In General (AREA)
Abstract
PURPOSE: To shorten the time needed to measure a fine current flowing through a resistance by forming a short circuit across the detection resistance until a programmable current power supply reaches a fixed voltage value, and then releasing it from the short circuit when it reaches the fixed value.
CONSTITUTION: When set-value input (a) applied to control part 1 varies, control 1 detects the variation value to close relay 3 correspondingly and then compares output value (b) with input (a) to send control output (c) to output generating part 2 in accordance with the comparison result, so that generating part 2 will generate its output equal to input (a). In this case, relay 3 is close and the value approximates to the set value in a short time without much influence of floating capacity based upon output value (b). With the set value equal to the output value, relay 3 opens and the output value is under a slight influence of a load, but returns to the set value in a short time, so that a difference in potential across resistance R will be measured by measurement part 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14748578A JPS5572218A (en) | 1978-11-25 | 1978-11-25 | Programmable current power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14748578A JPS5572218A (en) | 1978-11-25 | 1978-11-25 | Programmable current power supply |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572218A true JPS5572218A (en) | 1980-05-30 |
Family
ID=15431451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14748578A Pending JPS5572218A (en) | 1978-11-25 | 1978-11-25 | Programmable current power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572218A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4491797A (en) * | 1982-06-01 | 1985-01-01 | Northern Telecom Limited | Test contact resistance of dry circuit contacts |
-
1978
- 1978-11-25 JP JP14748578A patent/JPS5572218A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4491797A (en) * | 1982-06-01 | 1985-01-01 | Northern Telecom Limited | Test contact resistance of dry circuit contacts |
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