JPS562018A - Bias circuit - Google Patents
Bias circuitInfo
- Publication number
- JPS562018A JPS562018A JP7733679A JP7733679A JPS562018A JP S562018 A JPS562018 A JP S562018A JP 7733679 A JP7733679 A JP 7733679A JP 7733679 A JP7733679 A JP 7733679A JP S562018 A JPS562018 A JP S562018A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electric power
- bias circuit
- resistance
- power source
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To obtain a circuit suitable to that using batteries, etc., as its electric power source, by constituting a bias circuit which can be triggered securely under no influence of an electric power voltage.
CONSTITUTION: Transistor (TR)4 is grounded at its emitter via resistance 8, its base is also grounded via approximate constant voltage elements (diodes) 5 and 6, and the collector currents of TR4 determined by diodes 5 and 6 and resistance 8 is fed back to the base of TR4, thereby constituting a bias circuit. Electric power source 1 of this bias circuit is provided with a voltage generating circuit of a diode connected in series to resistance 14 or diode-connected TR13 and further with TR12 whose base is connected to the connection point between resistance 14 and TR13, and the collector and emitter of the TR12 are connected to the collector and emitter of TR4 respectively, so that a trigger circuit which can trigger the bias circuit securely without being influenced by the voltage of electric power source 1. Then, in case that batteries, etc., are used as electric power source 1, the dependency of the power voltage is made constant covering a wide power voltage range even at a low voltage.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7733679A JPS562018A (en) | 1979-06-19 | 1979-06-19 | Bias circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7733679A JPS562018A (en) | 1979-06-19 | 1979-06-19 | Bias circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS562018A true JPS562018A (en) | 1981-01-10 |
Family
ID=13631073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7733679A Pending JPS562018A (en) | 1979-06-19 | 1979-06-19 | Bias circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS562018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112340A (en) * | 1984-06-29 | 1986-01-20 | Ikegai Gosu Kk | Apparatus for preventing adhesion of ink to impression cylinder in offset rotary press |
| JPH04229273A (en) * | 1990-04-27 | 1992-08-18 | Heidelberger Druckmas Ag | Printing machine equipped with cleaning device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50343A (en) * | 1973-05-07 | 1975-01-06 | ||
| JPS5227540A (en) * | 1975-08-21 | 1977-03-01 | Nec Corp | Constant-voltage supply circuit |
-
1979
- 1979-06-19 JP JP7733679A patent/JPS562018A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50343A (en) * | 1973-05-07 | 1975-01-06 | ||
| JPS5227540A (en) * | 1975-08-21 | 1977-03-01 | Nec Corp | Constant-voltage supply circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112340A (en) * | 1984-06-29 | 1986-01-20 | Ikegai Gosu Kk | Apparatus for preventing adhesion of ink to impression cylinder in offset rotary press |
| JPH04229273A (en) * | 1990-04-27 | 1992-08-18 | Heidelberger Druckmas Ag | Printing machine equipped with cleaning device |
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