JPS5589992A - Direct current correction circuit for charge transfer element - Google Patents
Direct current correction circuit for charge transfer elementInfo
- Publication number
- JPS5589992A JPS5589992A JP16370178A JP16370178A JPS5589992A JP S5589992 A JPS5589992 A JP S5589992A JP 16370178 A JP16370178 A JP 16370178A JP 16370178 A JP16370178 A JP 16370178A JP S5589992 A JPS5589992 A JP S5589992A
- Authority
- JP
- Japan
- Prior art keywords
- base
- transistor
- base current
- charge transfer
- emitter
- 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
- Solid State Image Pick-Up Elements (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE: To eliminate the DC potential variation due to base current with a simple constitution, by connecting the current source corresponding to the base current up to the prestage between the stages of charge transfer elements consisting of bipolar transistors.
CONSTITUTION: The hot end of the capacitor Co is connected to the base of npn- type transistor Q1', the collector of this transistor is to the power supply terminal 4 and the emitter is connected to the base of npn-type transistor Q1". Next, the collector of transistor Q1" is connected to the power supply terminal 4 and the resistor R1' is connected between the base and emitter, and the emitter is grounded via the resistor R1". Further, the hot end of the capacitors C2, C4...C2n is similarly constituted. In this circuitry, when the value of R is selected so that the base current of transistors Q1, Q1' is equal each other, the base current of transistor Q1 is cancelled resulting in eliminating the DC voltage variation due to the base current with a simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16370178A JPS5589992A (en) | 1978-12-26 | 1978-12-26 | Direct current correction circuit for charge transfer element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16370178A JPS5589992A (en) | 1978-12-26 | 1978-12-26 | Direct current correction circuit for charge transfer element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5589992A true JPS5589992A (en) | 1980-07-08 |
Family
ID=15778965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16370178A Pending JPS5589992A (en) | 1978-12-26 | 1978-12-26 | Direct current correction circuit for charge transfer element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589992A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4511902A (en) * | 1982-02-17 | 1985-04-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Thermal transfer type printing apparatus |
-
1978
- 1978-12-26 JP JP16370178A patent/JPS5589992A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4511902A (en) * | 1982-02-17 | 1985-04-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Thermal transfer type printing apparatus |
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