JPS562018A - Bias circuit - Google Patents

Bias circuit

Info

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
Application number
JP7733679A
Other languages
Japanese (ja)
Inventor
Masaharu Sato
Takeshi Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7733679A priority Critical patent/JPS562018A/en
Publication of JPS562018A publication Critical patent/JPS562018A/en
Pending legal-status Critical Current

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  • 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
JP7733679A 1979-06-19 1979-06-19 Bias circuit Pending JPS562018A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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