JPH046968A - Ccd image pickup device - Google Patents

Ccd image pickup device

Info

Publication number
JPH046968A
JPH046968A JP2108074A JP10807490A JPH046968A JP H046968 A JPH046968 A JP H046968A JP 2108074 A JP2108074 A JP 2108074A JP 10807490 A JP10807490 A JP 10807490A JP H046968 A JPH046968 A JP H046968A
Authority
JP
Japan
Prior art keywords
power supply
voltage
driver
negative
vertical
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
JP2108074A
Other languages
Japanese (ja)
Inventor
Maki Sato
真木 佐藤
Masaharu Hamazaki
浜崎 正治
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP2108074A priority Critical patent/JPH046968A/en
Publication of JPH046968A publication Critical patent/JPH046968A/en
Pending legal-status Critical Current

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  • Solid State Image Pick-Up Elements (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To save an external negative power supply especially and to reduce the cost by forming a driver and a power supply generator 6 converting an external power supply voltage and applying the converted voltage to the driver onto a same printed circuit board. CONSTITUTION:A power supply generator 6 converting a power supply voltage from an external power supply 4 such as a positive system voltage VM into a negative system voltage VL and a driver 5 are formed on a same chip. With switches S1, S2 turned on, a charging voltage across a capacitor C1 is selected to be +10V. Then switches S3, S4 are turned on and the switches S1, S2 are turned off to carry the charge in the capacitor C1 to the capacitor C2, the charging voltage across the C2 is selected to be +10V, and a negative voltage VL of -10V is outputted from a output terminal phiOUT. Through the constitution above, an external negative power supply is saved and the cost is reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野] 本発明は、例えばCCDカメラ等に使用されるCCD撮
像装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a CCD imaging device used, for example, in a CCD camera.

〔発明の概要〕[Summary of the invention]

本発明は、少なくともタイミング発生器からの出力制御
信号と外部電源からの電源電圧に基いて、CCD撮像素
子に所定の出力波形を供給するドライバを具備して成る
CCD撮像装置において、上記外部電源からの電BTK
、圧を任意の電圧に変換し、上記ドライバに供給する電
源発生器を上記ドライバと共に、同一基板上に形成して
構成することにより、外部電源、特に外部の負電源の省
略化を図って、部品点数の削減並びにコストの低廉化を
図れるようにしたものである。
The present invention provides a CCD imaging device comprising a driver that supplies a predetermined output waveform to a CCD imaging element based on at least an output control signal from a timing generator and a power supply voltage from an external power supply. Electric BTK
By configuring a power generator that converts voltage into an arbitrary voltage and supplies it to the driver together with the driver on the same substrate, an external power source, especially an external negative power source, can be omitted. This makes it possible to reduce the number of parts and reduce costs.

〔従来の技術〕[Conventional technology]

従来のCCD撮像装置、例えばCCDカメラは、第4図
に示すように、CCD撮像素子(11)、垂直クロック
トライバ(12)、タイミング発生器(13)及び電源
回路(14) 、 (15)を有する。垂直クロックト
ライバ(12)は、タイミング発生器(13)からの出
力制御信号Scと、電源回路(14)及び(15)から
の電源電圧■。+ vDD+  ■33及び■、の供給
に基いて第5図に示すような出力波形の垂直走査信号φ
■をCCD撮像素子(11)に供給する。そして、第5
図に示す出力波形のうち、低レベル−10V、高レベル
0■のクロックパルスP1によって、CCD撮像素子(
11)の垂直レジスタ内で信号電荷の垂直転送が行なわ
れ、高レベルが15VのクロックパルスP2によって、
センサ部から垂直レジスタへの電荷転送が行なわれる。
A conventional CCD imaging device, for example, a CCD camera, as shown in FIG. 4, includes a CCD imaging element (11), a vertical clock driver (12), a timing generator (13), and a power supply circuit (14), (15). has. The vertical clock driver (12) receives the output control signal Sc from the timing generator (13) and the power supply voltage (2) from the power supply circuits (14) and (15). + vDD+ Based on the supply of ■33 and ■, a vertical scanning signal φ with an output waveform as shown in FIG.
(2) is supplied to the CCD image sensor (11). And the fifth
Of the output waveforms shown in the figure, the CCD image sensor (
Vertical transfer of signal charges is performed in the vertical register of 11), and a clock pulse P2 with a high level of 15V causes the signal charge to be transferred vertically.
Charge transfer is performed from the sensor section to the vertical register.

尚、水平走査信号φHは、タイミング発生器(13)か
ら出力され、CCD撮像素子(11)に供給される。そ
して、センサ部で撮像した映像情報を上記垂直及び水平
走査信号φV及びVHに基いて後段の信号処理系に順次
供給する。
Note that the horizontal scanning signal φH is output from the timing generator (13) and supplied to the CCD image sensor (11). Then, the video information captured by the sensor section is sequentially supplied to the subsequent signal processing system based on the vertical and horizontal scanning signals φV and VH.

の電源回路(15)の2つが必要となる。Two power supply circuits (15) are required.

このように、従来の場合、外部電源が2つ必要であるた
め、CCD撮像装置の小型軽量化、コストの低廉化には
限界があった。
As described above, in the conventional case, since two external power supplies are required, there is a limit to the reduction in size, weight, and cost of a CCD imaging device.

本発明は、このような点に鑑み成されたもので、その目
的とするところは、外部電源、特に負2Bの省略化を図
って部品点数の削減が図れ、装置自体の小型軽量化並び
にコストの低廉化を図ることができるCCD撮像装置を
提供することにある。
The present invention has been made in view of these points, and its purpose is to reduce the number of parts by omitting the external power supply, especially the negative 2B, and to reduce the size and weight of the device itself, as well as to reduce costs. An object of the present invention is to provide a CCD imaging device that can reduce the cost.

〔発吋が解決しようとする課題] しかしながら、従来のCCD 11i像装置においては
、垂直クロックトライバ(12)から出力される垂直走
査信号φ■が、第5図に示すように、低しヘルー10v
、高レベル0■のクロックパルスP。
[Problems to be solved by Osaka] However, in the conventional CCD 11i image device, the vertical scanning signal φ■ output from the vertical clock driver (12) is low and low, as shown in FIG. 10v
, high level 0■ clock pulse P.

と、低レベルO■、高レベル15VのクロックパルスP
:であることから、使用する電源電圧は、e系がVH(
15V)、V、(5V)及びVss(OV)、e系がV
L  (15V)である。従って、電源回路としては、
第4図に示すように、e系の電源回路(14)とe系(
課題を解決するための手段〕 本発明は、少なくともタイミング発生器(3)からの出
力制御信号Scと、外部電源(4)からの電源電圧に基
いて、CCDJi像素子(1)に所定の出力波形(垂直
走査信号φV)を供給するドライバ(垂直クロックトラ
イバ(5))を具備して成るCCD撮像装置(A)にお
いて、外部を源(4)からの電源電圧、例えば■イを任
意の電圧、例えば■、に変換し、この電圧vLをドライ
バ(5)に供給する電源発生器(6)をドライバ(5)
と共に、同一基板上に形成して構成する6 〔作 用〕 上述の本発明の構成によれば、外部型[(4)からの電
源電圧を任意の電圧、例えばe系の電源電圧■6をe系
の電源電圧■、に変換する電源発生器(6)をドライバ
(5)と共に、同一基板(即ち、同一チップ)上に形成
するようにしたので、外部電源としてe系の外部電源(
4)のみでよく、e系の外部電源を不要になすことがで
きる。
, low level O■, high level 15V clock pulse P
: Therefore, the power supply voltage used is VH(
15V), V, (5V) and Vss (OV), e system is V
L (15V). Therefore, as a power supply circuit,
As shown in Figure 4, the e-system power supply circuit (14) and the e-system (
Means for Solving the Problems] The present invention provides a CCDJi image element (1) with a predetermined output based on at least an output control signal Sc from a timing generator (3) and a power supply voltage from an external power supply (4). In a CCD imaging device (A) equipped with a driver (vertical clock driver (5)) that supplies a waveform (vertical scanning signal φV), a power supply voltage from an external source (4), for example The driver (5) is connected to a power generator (6) that converts the voltage into a voltage, for example, ■ and supplies this voltage vL to the driver (5)
According to the configuration of the present invention described above, the power supply voltage from the external mold [(4) can be set to an arbitrary voltage, for example, the e-system power supply voltage 6 can be formed on the same substrate. Since the power supply generator (6) that converts the e-system power supply voltage (2) to the driver (5) is formed on the same substrate (that is, the same chip), the e-system external power supply (6) can be used as an external power supply.
4) is sufficient, and an external power source for the e-system can be made unnecessary.

このように、本発明の場合、部品点数の削減を図ること
ができ、CCD 14%像装置(A)自体の小型軽量化
並びにコストの低廉化を図ることができる。
As described above, in the case of the present invention, the number of parts can be reduced, and the CCD 14% imaging device (A) itself can be made smaller and lighter, as well as lower in cost.

〔実施例〕〔Example〕

以下、第1図〜第3図を参照しながら本発明の詳細な説
明する。
Hereinafter, the present invention will be explained in detail with reference to FIGS. 1 to 3.

第1図は、本実施例に係るCCD撮像装置、例えばCC
Dカメラ(A)の要部の構成を示すブロンク線図である
FIG. 1 shows a CCD imaging device according to this embodiment, for example, a CC
FIG. 3 is a Bronk diagram showing the configuration of main parts of the D camera (A).

このCCDカメラ(A)は、図示する如く、CCD撮像
素子(1)と垂直ドライバ部(2)とタイミング発生器
(3)とe系の電源回路(4)とを有する。
As shown in the figure, this CCD camera (A) has a CCD image sensor (1), a vertical driver section (2), a timing generator (3), and an e-system power supply circuit (4).

しかして、本例に係る垂直ドライバ部(2)は、同一基
板、即ち同一チップ上に垂直クロックトライバ(5)と
負電源発生器(6)を形成してなる。負電源発生器(6
)は、電源回路(4)からの電源電圧VM  (例えば
+l0V)を負電源電圧Vt  (例えば−10V)に
変換し、この負電源電圧VLを垂直クロックトライバ(
5)に供給するようになされている。負電源発生器(6
)を構成する回路としては、例えば電源回路(4)から
の+IOVが直?X電圧であれば、第2図に示すような
、コンデンサを用いた所謂チャージポンピング方式の変
換回路が適用できる。この回路の動作を簡単に説明する
と、まず、スイッチSI及びS2をオンにしてコンデン
サC9に電荷を蓄積し、コンデンサC1の充電電圧を+
IOVにする。その後、スイッチS、及びS4をオン、
スイッチS1及びS2をオフにして、コンデンサCIの
蓄積電荷をコンデンサC2に運び上げる。
Thus, the vertical driver section (2) according to this example includes a vertical clock driver (5) and a negative power generator (6) formed on the same substrate, that is, the same chip. Negative power generator (6
) converts the power supply voltage VM (e.g. +10V) from the power supply circuit (4) into a negative power supply voltage Vt (e.g. -10V), and applies this negative power supply voltage VL to the vertical clock driver (
5). Negative power generator (6
), for example, +IOV from the power supply circuit (4) is directly connected? If the voltage is X, a so-called charge pumping conversion circuit using a capacitor as shown in FIG. 2 can be applied. To briefly explain the operation of this circuit, first, switches SI and S2 are turned on to accumulate charge in capacitor C9, and the charging voltage of capacitor C1 is increased to +
Make it IOV. Then turn on switches S and S4,
Switches S1 and S2 are turned off to carry the accumulated charge in capacitor CI to capacitor C2.

即ち、コンデンサC5の電荷をコンデンサC2にポンピ
ングする。このとき、コンデンサC2の充tt圧が+I
OVになり、出力端子φ。□から10Vの負電圧■、が
出力される。また、電源回路(4)からの電源が交流で
あれば、例えば第3図に示すように、トランス(7)を
使用し、トランス1次電圧E2に対するトランス2次電
圧E、をダイオードDによる整流作用とコンデンサCに
よる平滑作用によって出力端子φ。、から例えば−10
■の直流電圧■、を出力する。尚、T、は例えばNPN
 )ランジスタによる負荷抵抗である。また、第2図の
回路において、2段接続すれば、ii電源回路4)から
の例えば+5Vを一10Vに変換することも可能になる
That is, the charge of capacitor C5 is pumped to capacitor C2. At this time, the charging tt pressure of capacitor C2 is +I
becomes OV and the output terminal φ. A negative voltage ■ of 10V is output from □. Furthermore, if the power source from the power supply circuit (4) is AC, for example, as shown in FIG. The output terminal φ due to the smoothing action and the smoothing action by the capacitor C. , for example -10
Outputs a DC voltage of ■. Note that T is, for example, NPN
) is the load resistance by a transistor. Furthermore, in the circuit of FIG. 2, if two stages are connected, it becomes possible to convert, for example, +5V from the power supply circuit ii) to -10V.

上記構成において、まず、タイミング発生器(3)から
の出力制御信号S、と、電源回路(4)からのe基型源
■イ、■、。、Vss(夫々例えば+15V。
In the above configuration, first, the output control signal S from the timing generator (3) and the e-base type sources (1), (2), from the power supply circuit (4). , Vss (each, for example, +15V.

+5V、OVとする)を垂直ドライバ部(2)の垂直ク
ロックトライバ(5)に供給すると共に、電源回路(4
)からのの基型#VM、例えば+IOVに基いて負電源
発生器(6)で負電源VL例えば−10Vに変換し、こ
の負電源VLを同しく垂直クロックトライバ(5)に供
給する。
+5V, OV) is supplied to the vertical clock driver (5) of the vertical driver section (2), and the power supply circuit (4
) is converted to a negative power supply VL, for example -10V, by a negative power supply generator (6) based on the base type #VM, for example +IOV, and this negative power supply VL is also supplied to the vertical clock driver (5).

垂直クロックトライバ(5)は、上記出力制御信号S、
と、電源電圧Vu 、 VDD、  VSS及び■、に
基いて、第5図に示すような出力波形を有する垂直走査
信号φVを発生し、CCD撮像素子(1)に供給する。
The vertical clock driver (5) receives the output control signal S,
Based on the power supply voltages Vu, VDD, VSS, and (2), a vertical scanning signal φV having an output waveform as shown in FIG. 5 is generated and supplied to the CCD image sensor (1).

CCD撮像素子(1)においては、上記垂直走査信号φ
v中、低しヘルー10■、高レベルOVのクロックパル
スP、で信号電荷の垂直転送を行ない、低しヘルー10
■、高レベル+15VのクロックパルスP2でセンサ部
から垂直レジスタへの電荷転送を行なう。水平走査信号
φHは、直接タイミング発生器(3)から供給される。
In the CCD image sensor (1), the vertical scanning signal φ
Vertical transfer of signal charges is performed with a low level of 10 cm and a high level OV clock pulse P, and a low level of 10
(2) Charge is transferred from the sensor section to the vertical register using a clock pulse P2 of high level +15V. The horizontal scanning signal φH is directly supplied from the timing generator (3).

そしてセンサ部で撮像した映像情報を上記垂直及び水平
走査信号φ■及びφHに基いて後段の信号処理系に順次
供給する。
Then, the video information captured by the sensor section is sequentially supplied to the subsequent signal processing system based on the vertical and horizontal scanning signals φ■ and φH.

上述の如く、本例によれば、電源回路(4)からの電源
電圧のうち、例えば■。(+10V)を負電源VL  
(l0V)に変換し、該負電源■、を垂直クロックトラ
イバ(5)に供給する負電源発生器(6)を垂直クロッ
クトライバ(5)と共に同−基板即ち、同一チップ上に
形成して垂直ドライバ部(2)としたので、外部電源と
してe系の外部電源(電源回路(4))のみで済み、e
系の外部inを省略することができる。従って、部品点
数の削減を図ることができ、CCDカメラ(A)自体の
小型軽量化並びにコストの低廉化を図ることができる。
As described above, according to this example, among the power supply voltages from the power supply circuit (4), for example, ■. (+10V) as negative power supply VL
A negative power supply generator (6) that converts the negative power supply (10V) into vertical clock driver (5) and supplies the negative power supply (10V) to the vertical clock driver (5) is formed on the same substrate, that is, on the same chip, with the vertical clock driver (5). Since the vertical driver section (2) is made with
The external in of the system can be omitted. Therefore, the number of parts can be reduced, and the CCD camera (A) itself can be made smaller and lighter, as well as lower in cost.

上記実施例は、を源回路(4)からの正を源を任意の負
電源に変換するようにしたが、その他、任意の正電源に
変換するようにしてもよい。
In the above embodiment, the positive power from the source circuit (4) is converted into an arbitrary negative power source, but it may also be converted into any other positive power source.

構成を示すブロック線図、第2図は本例に係る負電源発
生器の一例を示す回路図、第3図はその他の例を示す回
路図、第4図は従来例に係るCCDカメラの要部の構成
を示すブロック線図、第5回は本発明の説明に供する垂
直走査信号を示す波形図である。
A block diagram showing the configuration, FIG. 2 is a circuit diagram showing an example of the negative power supply generator according to the present example, FIG. 3 is a circuit diagram showing another example, and FIG. 4 shows the main points of the CCD camera according to the conventional example. The fifth part is a block diagram showing the configuration of a part, and the fifth part is a waveform diagram showing a vertical scanning signal for explaining the present invention.

(A)はCCDカメラ、(1)はCCD撮像素子、(2
)は垂直ドライバ部、(3)はタイミング発生器、(4
)は電源回路、(5)は垂直クロンクドライバ、(6)
は負電源発生器である。
(A) is a CCD camera, (1) is a CCD image sensor, (2
) is the vertical driver section, (3) is the timing generator, (4
) is the power supply circuit, (5) is the vertical clock driver, (6)
is a negative power supply generator.

〔発明の効果〕〔Effect of the invention〕

本発明に係るCCD撮像装置によれば、外部電源、特に
外部の負電源を省略することができ、装置自体の部品点
数の削減並びにコストの低廉化を図ることができる。
According to the CCD imaging device according to the present invention, an external power supply, particularly an external negative power supply, can be omitted, and the number of parts and cost of the device itself can be reduced.

【図面の簡単な説明】[Brief explanation of drawings]

Claims (1)

【特許請求の範囲】  少なくともタイミング発生器からの出力制御信号と外
部電源からの電源電圧に基いて、CCD撮像素子に所定
の出力波形を供給するドライバを具備して成るCCD撮
像装置において、 上記外部電源からの電源電圧を任意の電圧に変換し、上
記ドライバに供給する電源発生器を上記ドライバと共に
、同一基板上に形成してなるCCD撮像装置。
[Scope of Claims] A CCD imaging device comprising a driver that supplies a predetermined output waveform to a CCD imaging element based on at least an output control signal from a timing generator and a power supply voltage from an external power supply, A CCD imaging device comprising a power generator that converts a power supply voltage from a power supply into an arbitrary voltage and supplies the voltage to the driver, and is formed on the same substrate as the driver.
JP2108074A 1990-04-24 1990-04-24 Ccd image pickup device Pending JPH046968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2108074A JPH046968A (en) 1990-04-24 1990-04-24 Ccd image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2108074A JPH046968A (en) 1990-04-24 1990-04-24 Ccd image pickup device

Publications (1)

Publication Number Publication Date
JPH046968A true JPH046968A (en) 1992-01-10

Family

ID=14475222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2108074A Pending JPH046968A (en) 1990-04-24 1990-04-24 Ccd image pickup device

Country Status (1)

Country Link
JP (1) JPH046968A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7183815B2 (en) 2000-02-04 2007-02-27 Sanyo Electric Co., Ltd. Drive apparatus for CCD image sensor
JP2009153057A (en) * 2007-12-21 2009-07-09 Panasonic Corp Solid-state imaging device and method of driving the same, and camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7183815B2 (en) 2000-02-04 2007-02-27 Sanyo Electric Co., Ltd. Drive apparatus for CCD image sensor
JP2009153057A (en) * 2007-12-21 2009-07-09 Panasonic Corp Solid-state imaging device and method of driving the same, and camera

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