JPS55107306A - Operational amplifier - Google Patents
Operational amplifierInfo
- Publication number
- JPS55107306A JPS55107306A JP1358279A JP1358279A JPS55107306A JP S55107306 A JPS55107306 A JP S55107306A JP 1358279 A JP1358279 A JP 1358279A JP 1358279 A JP1358279 A JP 1358279A JP S55107306 A JPS55107306 A JP S55107306A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- diode
- operational amplifier
- zener
- diodes
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To enable to make stable operation simply with a single power supply, by connecting two Zener diodes in series with the same direction, and connecting the cathode of the first diode to the positive power supply and the anode of the second diode to the negative power supply. CONSTITUTION:The single power supply 7 is split with the Zener diodes 9, 10 connected in series to the same direction. Further, the cathode side of the Zener diode 9 is taken as the positive power supply to feed power supply to each operating section from the input adjuster 1 to the drive circuit 5. Moreover, the anode of the Zener diode 10 is connected to the negative power supply of the operational amplifier used for the logarithmic amplifier 2 and the adder 3 and connected to the ground side of the input adjuster 1, A/D converter 4, and drive circuit 5. Thus, the operational amplifier operates by taking the middle point of the Zener diodes 9, 10 as the center. As the diodes 9, 10, when the voltage of 5.6-6.2 volts in which the operating resistance and temperature coefficient are excellent is used, stable operation can be obtained to voltage and temperature variation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1358279A JPS55107306A (en) | 1979-02-08 | 1979-02-08 | Operational amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1358279A JPS55107306A (en) | 1979-02-08 | 1979-02-08 | Operational amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107306A true JPS55107306A (en) | 1980-08-18 |
Family
ID=11837162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1358279A Pending JPS55107306A (en) | 1979-02-08 | 1979-02-08 | Operational amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107306A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01175353U (en) * | 1988-05-26 | 1989-12-13 | ||
JP2007249384A (en) * | 2006-03-14 | 2007-09-27 | Ricoh Co Ltd | Semiconductor device |
-
1979
- 1979-02-08 JP JP1358279A patent/JPS55107306A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01175353U (en) * | 1988-05-26 | 1989-12-13 | ||
JP2007249384A (en) * | 2006-03-14 | 2007-09-27 | Ricoh Co Ltd | Semiconductor device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0189885A3 (en) | Voltage regulator for generator used in automobile | |
JPS55107306A (en) | Operational amplifier | |
JPS55127084A (en) | Lighting circuit for light emitting diode | |
JPS5320555A (en) | Constant current circuit | |
JPS5458851A (en) | Feeding mode | |
JPS56147509A (en) | Limiter circuit | |
JPS548452A (en) | Analog gate circuit | |
JPS5342643A (en) | Dog-leg function converter circuit | |
JPS5642410A (en) | Emitter follower circuit | |
JPS5473547A (en) | Integrating a/d conversion current circuit | |
JPS5361044A (en) | Circuit for supplying reference voltage | |
JPS5552617A (en) | Limiter circuit including only passive element in feedback circuit | |
JPS5744336A (en) | Logical circuit | |
UA7582A1 (en) | Relay-pulse device | |
JPS5687932A (en) | Switching circuit | |
JPS57129592A (en) | Waveform varying circuit | |
JPS55127620A (en) | Constant-current circuit | |
JPS567116A (en) | Serial control type constant voltage power unit | |
JPS54128261A (en) | Interface circuit | |
JPS5753114A (en) | Differential amplifier | |
JPS55146521A (en) | Constant-current circuit | |
JPS5558608A (en) | Current miller output circuit | |
JPS55146983A (en) | Mimic device of solar battery | |
JPS56146306A (en) | Oscillator | |
JPS57169829A (en) | Switching power supply device |