JPS55153016A - Bias circuit - Google Patents
Bias circuitInfo
- Publication number
- JPS55153016A JPS55153016A JP6011979A JP6011979A JPS55153016A JP S55153016 A JPS55153016 A JP S55153016A JP 6011979 A JP6011979 A JP 6011979A JP 6011979 A JP6011979 A JP 6011979A JP S55153016 A JPS55153016 A JP S55153016A
- Authority
- JP
- Japan
- Prior art keywords
- collector
- current
- early effect
- terminal
- 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
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE: To hold the output voltage of a unit constant by holding nearly constant the collector current of one transistor constituting a current Miller circuit to fluctuations of a power voltage while connecting a resistance of a specific value for the Early effect to one terminal of an electric power source.
CONSTITUTION: Both PNP transistor (TRs) 2 and 3 whose emitters are connected to electric power source 1 constitute a current Miller circuit and TRs 5 and 6 connected to the collector of the secondary TR2 of this circuit are grounded being connected forward in series. Next, the emitter of NPNTR4 whose collector is connected to the collector of TR3 is grounded via resistance 8 and connected to the emitter of TR13 whose collector connects with one terminal of resistance 12, having a specific value for the Early effect, with the other terminal connected to electric power source 1. In case that the power voltage varies by ΔVcc, collector current Ic2 is held nearly constant by canceling with current variation by the Early effect. Consequently, a constant voltage stable to the broad range variation of the power voltage can be obtained even by using PNPTR with the large Early effect.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6011979A JPS55153016A (en) | 1979-05-15 | 1979-05-15 | Bias circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6011979A JPS55153016A (en) | 1979-05-15 | 1979-05-15 | Bias circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55153016A true JPS55153016A (en) | 1980-11-28 |
Family
ID=13132908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6011979A Pending JPS55153016A (en) | 1979-05-15 | 1979-05-15 | Bias circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55153016A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0681013U (en) * | 1981-12-28 | 1994-11-15 | レイセオン・カンパニー | Current source circuit |
-
1979
- 1979-05-15 JP JP6011979A patent/JPS55153016A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0681013U (en) * | 1981-12-28 | 1994-11-15 | レイセオン・カンパニー | Current source circuit |
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