JPS63259477A - Voltage supply circuit - Google Patents
Voltage supply circuitInfo
- Publication number
- JPS63259477A JPS63259477A JP62092838A JP9283887A JPS63259477A JP S63259477 A JPS63259477 A JP S63259477A JP 62092838 A JP62092838 A JP 62092838A JP 9283887 A JP9283887 A JP 9283887A JP S63259477 A JPS63259477 A JP S63259477A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- amplifier
- voltages
- pulse
- working
- 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
- 230000000875 corresponding Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 abstract 1
Abstract
PURPOSE: To supply a specified value of pulse voltage of a correct ground level or the like, by generating an output voltage corresponding to a first voltage during a specified period when a voltage is changed in a pulse between a third voltage between first and second voltages and a fourth voltage biased in the opposite direction to the second voltage, not the first voltage.
CONSTITUTION: An amplifier 20 receives first and second voltages V1 and V2 as working voltage, and a signal generation means 12 receives a third voltage V3 between the first and second voltages and a fourth voltage V4 biased in the opposite direction to the voltage V2, not the voltage V1, as input signal. When an output voltage C of the means 12 is a negative voltage V4, the output voltage D of the amplifier 10 tends to fall down a an negative level as the voltage V4 is below the working voltage V1 of the amplifier 10, but it will not be down below the ground voltage because the emitter of a transistor 26 is grounded. Thus, no current flows through a resistance 28 for current detection and so a negative power source terminal voltage V1 of an operational amplifier 14 is turned to the ground voltage. In other words, the saturation of the amplifier 10 enables the supply of a pulse voltage of correct ground level solely depending on the working voltage of the amplifier 10.
COPYRIGHT: (C)1988,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62092838A JPH0641964B2 (en) | 1987-04-15 | 1987-04-15 | Voltage supply circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62092838A JPH0641964B2 (en) | 1987-04-15 | 1987-04-15 | Voltage supply circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63259477A true JPS63259477A (en) | 1988-10-26 |
JPH0641964B2 JPH0641964B2 (en) | 1994-06-01 |
Family
ID=14065571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62092838A Expired - Lifetime JPH0641964B2 (en) | 1987-04-15 | 1987-04-15 | Voltage supply circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0641964B2 (en) |
-
1987
- 1987-04-15 JP JP62092838A patent/JPH0641964B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0641964B2 (en) | 1994-06-01 |
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