JPS5674660A - Voltage to current converting system - Google Patents
Voltage to current converting systemInfo
- Publication number
- JPS5674660A JPS5674660A JP15228179A JP15228179A JPS5674660A JP S5674660 A JPS5674660 A JP S5674660A JP 15228179 A JP15228179 A JP 15228179A JP 15228179 A JP15228179 A JP 15228179A JP S5674660 A JPS5674660 A JP S5674660A
- Authority
- JP
- Japan
- Prior art keywords
- current
- resistor
- input
- feedback
- value
- 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
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To automatically stabilize the fluctuations in output current based on changes in load by selecting the value out of any of the input resistor, positive feedback resistor and negative feedback resistor of a full current feedback type voltage to current converting circuit.
CONSTITUTION: A noninverted input and an inverted input are applied to an amplifier A and a current amplifying transistor Q, the former via an input resistor R1 and the latter via an input resistor R2. The values obtained with a series resistor R0 from the outputs thereof are positive and negative fed back respectively by means of feedback resistors R3, R4. As a result, the current I1 corresponding to input voltage V1, -V2 flows through the primary winding of a current transformer CT, and the output current I0 proportional to this is applied to a load RL. If the values of resistors R1, and R2, R3 are defined as R, the value of R4 is defined as Rx and the leakage resistance component as Rl, Rx may be easily obtained by Rx=(Rl.R-Rl.R0-R0.R)/(R0+Rl) from an equivalent circuit; therefore, the change in the output current I0 may be stabilized automatically by adapting this value to the feedback resistor Rx.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15228179A JPS5674660A (en) | 1979-11-24 | 1979-11-24 | Voltage to current converting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15228179A JPS5674660A (en) | 1979-11-24 | 1979-11-24 | Voltage to current converting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674660A true JPS5674660A (en) | 1981-06-20 |
Family
ID=15537078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15228179A Pending JPS5674660A (en) | 1979-11-24 | 1979-11-24 | Voltage to current converting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674660A (en) |
-
1979
- 1979-11-24 JP JP15228179A patent/JPS5674660A/en active Pending
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