JPS5736363A - Integrating circuit - Google Patents
Integrating circuitInfo
- Publication number
- JPS5736363A JPS5736363A JP11072680A JP11072680A JPS5736363A JP S5736363 A JPS5736363 A JP S5736363A JP 11072680 A JP11072680 A JP 11072680A JP 11072680 A JP11072680 A JP 11072680A JP S5736363 A JPS5736363 A JP S5736363A
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- amplifier
- impressed
- terminal
- inversed
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
- G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
- G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To prevent variation during a period until an output signal reaches the upper or lower limits with a simple circuit configuration, by configuring an integrating circuit with an amplifier and a capacitor and by compensating bias current variations of the amplifier due to the current caused by the potential difference across input terminals of the amplifier. CONSTITUTION:An input voltage Vi from an input signal impressed terminal 10 is impressed upon the inversed input terminal of an operational amplifier 6 consisting an integrating circuit through a switch 11 and a resistor 3, and a constant reference voltage VB/2 obtained by dividing the supply voltage VB with resistors 1 and 2 is impressed upon a noninversed input terminal. Moreover, resistors 7 and 8 which form a feedback path are connected between the inversed input terminal and an output terminal 12, and connecting points of the resistors 7 and 8 are connected to the point upon which the reference voltage VB/2 is impressed, and then, a condenser 5 is connected between the inversed input terminal and the output terminal 12. Then, variations in the bias current caused by the potentional difference across the inversed input terminal and noninversed input terminal of the amplifier 6 are compensated, and thus variation during a period until output signals reach the upper or lower limits are prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11072680A JPS5736363A (en) | 1980-08-12 | 1980-08-12 | Integrating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11072680A JPS5736363A (en) | 1980-08-12 | 1980-08-12 | Integrating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5736363A true JPS5736363A (en) | 1982-02-27 |
Family
ID=14542932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11072680A Pending JPS5736363A (en) | 1980-08-12 | 1980-08-12 | Integrating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5736363A (en) |
-
1980
- 1980-08-12 JP JP11072680A patent/JPS5736363A/en active Pending
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