JPH11215730A - Power source discriminating device for portable electronic equipment - Google Patents

Power source discriminating device for portable electronic equipment

Info

Publication number
JPH11215730A
JPH11215730A JP1593898A JP1593898A JPH11215730A JP H11215730 A JPH11215730 A JP H11215730A JP 1593898 A JP1593898 A JP 1593898A JP 1593898 A JP1593898 A JP 1593898A JP H11215730 A JPH11215730 A JP H11215730A
Authority
JP
Japan
Prior art keywords
battery
power supply
portable electronic
constant voltage
voltage
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.)
Granted
Application number
JP1593898A
Other languages
Japanese (ja)
Other versions
JP3870528B2 (en
Inventor
賀也 ▲樋▼口
Yoshiya Higuchi
Hideyuki Sato
秀幸 佐藤
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 JP01593898A priority Critical patent/JP3870528B2/en
Publication of JPH11215730A publication Critical patent/JPH11215730A/en
Application granted granted Critical
Publication of JP3870528B2 publication Critical patent/JP3870528B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PROBLEM TO BE SOLVED: To use no mechanical switch, and so as to obtain mounting information of a battery without mis-detection. SOLUTION: In this power source discriminating device, when a constant voltage power source 3 and a battery 4 are connected, a portable electronic equipment 1 is driven by the constant voltage power source 3, also the battery is charged therewith, when either one of the constant voltage power source or the battery is connected, and the portable electronic equipment is driven by the constant voltage power source or battery to which it is connected. First and second voltage detection means for detecting respective power source voltages of the constant voltage power source and the battery is provided, also an initial charging means 2, 8 which is used in charging when voltage of the battery is low at its charge time by the constant voltage power source, and a normal charge means 2, 8 in normal charging are provided, and when the constant voltage power source is connected to the portable electronic equipment, when voltage of the battery is low, the initial charging means is operated, whether the battery connection is correct is discriminated by a second voltage detection means.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は定電圧電源装置及び
バッテリの双方で駆動できるようにしたカメラ一体型ビ
デオレコーダ等のポータブル電子機器の電源識別装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply identification device for portable electronic equipment such as a video recorder integrated with a camera, which can be driven by both a constant voltage power supply device and a battery.

【0002】[0002]

【従来の技術】一般にカメラ一体型ビデオレコーダ等の
ポータブル電子機器においては、電源として商用電源よ
り所定の直流電圧を得る定電圧電源装置と所定の直流電
圧が得られるバッテリとの双方が使用できる如くなされ
ている。
2. Description of the Related Art Generally, in portable electronic equipment such as a video recorder integrated with a camera, both a constant voltage power supply for obtaining a predetermined DC voltage from a commercial power supply and a battery for obtaining a predetermined DC voltage can be used. It has been done.

【0003】この定電圧電源装置とバッテリとの双方が
電源として使用できるようになされたポータブル電子機
器においては、一般にこの定電圧電源装置とバッテリと
の双方が接続されているときには、この定電圧電源装置
により、このポータブル電子機器を駆動するようにする
と共にこの定電圧電源装置によりバッテリを充電する如
くしている。
In portable electronic equipment in which both the constant voltage power supply and the battery can be used as power supplies, generally, when both the constant voltage power supply and the battery are connected, the constant voltage power supply is used. The portable electronic device is driven by the device, and the battery is charged by the constant voltage power supply device.

【0004】また、この定電圧電源装置又はバッテリの
いずれか一方が接続されているときは、この接続されて
いる定電圧電源装置又はバッテリでこのポータブル電子
機器を駆動する如くしている。
When either the constant voltage power supply or the battery is connected, the portable electronic device is driven by the connected constant voltage power supply or the battery.

【0005】従来、このポータブル電子機器にバッテリ
が装着(接続)されているかどうかを識別するのにバッ
テリの装着部に機械的スイッチを設けて、機械的にバッ
テリの装着情報を検出する如くしていた。
Conventionally, a mechanical switch is provided at a mounting portion of a battery to identify whether or not a battery is mounted (connected) to the portable electronic device, so that the mounting information of the battery is mechanically detected. Was.

【0006】[0006]

【発明が解決しようとする課題】然しながら、このバッ
テリの装着部にバッテリ以外のものでも、機械的に装着
できれば誤検出してしまう不都合があった。
However, there has been a problem in that even if something other than a battery can be mechanically mounted on the mounting portion of the battery, the battery is erroneously detected.

【0007】また、このバッテリの装着情報を検出する
のに機械的スイッチを用いているので、この機構を設け
るための機械的な設計制約を受けると共にこの機械的ス
イッチ等の部品コストがかかる不都合があった。
Further, since a mechanical switch is used to detect the mounting information of the battery, there are disadvantages that the mechanical design for providing this mechanism is restricted and the cost of parts such as the mechanical switch is increased. there were.

【0008】本発明は斯る点に鑑み、機械的スイッチを
使用することなく、且つバッテリの装着情報を誤検出す
ることなく得ることができるようにすることを目的とす
る。
In view of the foregoing, it is an object of the present invention to obtain battery mounting information without using a mechanical switch and without erroneous detection.

【0009】[0009]

【課題を解決するための手段】本発明のポータブル電子
機器の電源識別装置は定電圧電源装置及びバッテリが接
続されるようになされたポータブル電子機器であって、
この定電圧電源装置及びバッテリが共に接続されている
ときには、この定電圧電源装置によりこのポータブル電
子機器を駆動すると共にこの定電圧電源装置によりこの
バッテリを充電するようにし、定電圧電源装置又はバッ
テリのいずれか一方が接続されているときには、この接
続されている定電圧電源装置又はバッテリでこのポータ
ブル電子機器を駆動するようにしたポータブル電子機器
の電源識別装置において、この定電圧電源装置及びバッ
テリの夫々の電源電圧を検出する第1及び第2の電圧検
出手段を設けると共にこの定電圧電源装置によりこのバ
ッテリを充電するときにこのバッテリの電圧が低いとき
の充電に使用する初期充電手段と通常充電の通常充電手
段とを設け、この定電圧電源装置が、このポータブル電
子機器に接続されているときで、このバッテリの電圧が
低いときにはこの初期充電手段を動作しながらこの第2
の電圧検出手段によりこのバッテリが接続されているか
どうかを識別するようにしたものである。
According to the present invention, a power supply identification device for a portable electronic device is a portable electronic device to which a constant voltage power supply device and a battery are connected.
When the constant voltage power supply and the battery are connected together, the portable electronic device is driven by the constant voltage power supply, and the battery is charged by the constant voltage power supply. When either one of them is connected, in the power source identification device of the portable electronic device in which the portable electronic device is driven by the connected constant voltage power device or the battery, the constant voltage power device and the battery respectively. First and second voltage detecting means for detecting the power supply voltage of the power supply, and when charging the battery by the constant voltage power supply device, initial charging means used for charging when the voltage of the battery is low, and initial charging means for normal charging. A charging means, and the constant voltage power supply is connected to the portable electronic device. When it is, when the voltage of the battery is low the second while operating the initial charging means
Is used to identify whether or not this battery is connected.

【0010】斯る本発明によればバッテリの装着情報を
検出するのにこのバッテリの電圧により得ると共にこの
バッテリの電圧が低いときには初期充電手段により充電
しながら装着情報を得るようにしているので精度の高い
識別を行なうことかできる。
According to the present invention, the mounting information of the battery is obtained from the voltage of the battery to detect the mounting information. When the voltage of the battery is low, the mounting information is obtained while being charged by the initial charging means, so that the accuracy is improved. Can be identified.

【0011】また本発明によれば、機械的スイッチを使
用することなく、バッテリの装着情報を得るようにして
いるので、機械的な設計制約を受けないと共に部品コス
トを削減できる。
Further, according to the present invention, the battery mounting information is obtained without using a mechanical switch, so that there is no mechanical design restriction and the parts cost can be reduced.

【0012】[0012]

【発明の実施の形態】以下、図面を参照して本発明ポー
タブル電子機器の電源識別装置の実施の形態の例につき
説明しよう。図1例は本発明をカメラ一体型ビデオレコ
ーダに適用した例を示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a power supply identification device for a portable electronic device according to the present invention will be described with reference to the drawings. FIG. 1 shows an example in which the present invention is applied to a camera-integrated video recorder.

【0013】図1において、1はカメラ一体型ビデオレ
コーダを示し、このカメラ一体型ビデオレコーダに、こ
のカメラ一体型ビデオレコーダを制御するマイクロコン
ピュータより成るシステムコントローラ2を設ける。
In FIG. 1, reference numeral 1 denotes a camera-integrated video recorder. The camera-integrated video recorder is provided with a system controller 2 composed of a microcomputer for controlling the camera-integrated video recorder.

【0014】また、このカメラ一体型ビデオレコーダ1
に、商用電源を整流し所定の直流電圧が得られるように
なされた定電圧電源装置3の一方及び他方の出力端子が
接続される一方及び他方の電源端子1a及び1bを設け
ると共に所定直流電圧のバッテリ4の正極及び負極が接
続されるバッテリ用の一方及び他方の電源端子1c及び
1dを設ける。
The camera-integrated video recorder 1
And one and the other power terminals 1a and 1b to which one and the other output terminals of the constant voltage power supply 3 are connected to rectify the commercial power and obtain a predetermined DC voltage. One and other power terminals 1c and 1d for the battery to which the positive and negative electrodes of the battery 4 are connected are provided.

【0015】定電圧電源装置3の一方の出力端子が接続
される一方の電源端子1aを逆流防止用のダイオード5
及び定電圧回路6の直列回路を介してマイクロコンピュ
ータよりなるシステムコントローラ2の電源端子Vdd
接続すると共に一方の電源端子1aを分圧用の抵抗器R
1及びR2の直列回路を介して接地し、この抵抗器R1
及びR2の接続点をシステムコントローラ2のアナログ
信号をデジタル信号に変換する第1のA−D変換器が接
続されている第1のA/D入力端子に接続する。
A power supply terminal 1a to which one output terminal of the constant voltage power supply 3 is connected is connected to a diode 5 for preventing backflow.
And a power supply terminal Vdd of a system controller 2 comprising a microcomputer via a series circuit of a constant voltage circuit 6 and one power supply terminal 1a connected to a resistor R for voltage division.
1 and R2 are connected to ground via a series circuit.
And R2 are connected to a first A / D input terminal to which a first A / D converter for converting an analog signal of the system controller 2 into a digital signal is connected.

【0016】また、バッテリ4の正極が接続される一方
の電源端子1cを逆流防止用のダイオード7及び定電圧
回路6の直列回路を介してシステムコントローラ2の電
源端子Vddに接続すると共にこの一方の電源端子1cを
分圧用の抵抗器R3及びR4の直列回路を介して接地
し、この抵抗器R3及びR4の接続点をシステムコント
ローラ2の第2のA−D変換器が接続されている第2の
A/D入力端子に接続する。
A power supply terminal 1c, to which the positive electrode of the battery 4 is connected, is connected to a power supply terminal Vdd of the system controller 2 via a series circuit of a diode 7 for preventing backflow and a constant voltage circuit 6, and one of these terminals. Is grounded via a series circuit of voltage dividing resistors R3 and R4, and the connection point of the resistors R3 and R4 is connected to the second A / D converter of the system controller 2. 2 A / D input terminal.

【0017】また、定電圧電源装置3の他方の出力端子
が接続される他方の電源端子1b、バッテリ4の負極が
接続される他方の電源端子1d及びシステムコントロー
ラ2の接地端子GNDを接地する如くする。
The other power supply terminal 1b to which the other output terminal of the constant voltage power supply 3 is connected, the other power supply terminal 1d to which the negative electrode of the battery 4 is connected, and the ground terminal GND of the system controller 2 are grounded. I do.

【0018】また、定電圧電源装置3の一方の出力端子
が接続される一方の電源端子1aをシステムコントロー
ラ2の充電制御端子に得られる制御信号により制御され
る充電制御回路8を介して、バッテリ4の正極が接続さ
れバッテリ用の一方の電源端子1cに接続する。
A power supply terminal 1a to which one output terminal of the constant voltage power supply 3 is connected is connected to a battery via a charge control circuit 8 controlled by a control signal obtained from a charge control terminal of the system controller 2. 4 is connected to one power terminal 1c for the battery.

【0019】この充電制御回路8はバッテリ4の端子間
電圧が低いときは、定電圧電源装置3よりの充電電流を
制限して初期充電をするようにすると共にこのバッテリ
4の端子間電圧が所定電圧より高いときは定電圧電源装
置3よりの充電電流を直接にバッテリ4に供給する通常
充電を行なう如く、システムコントローラ2の充電制御
端子に得られる制御信号により制御される如くなしたも
のである。
When the voltage between the terminals of the battery 4 is low, the charging control circuit 8 limits the charging current from the constant voltage power supply device 3 to perform the initial charging and sets the voltage between the terminals of the battery 4 to a predetermined value. When the voltage is higher than the voltage, the charging current from the constant voltage power supply 3 is directly supplied to the battery 4 so that the battery 4 is controlled by a control signal obtained from a charging control terminal of the system controller 2 so as to perform normal charging. .

【0020】また、この充電制御回路8はバッテリ4を
このカメラ一体型ビデオレコーダ1の電源として使用す
るときには、このシステムコントローラ2により導通状
態とされる如くなされている。
When the battery 4 is used as a power source of the camera-integrated video recorder 1, the charge control circuit 8 is made conductive by the system controller 2.

【0021】また一方及び他方の電源端子1a(1c)
及び1b(1d)に得られる電源電圧をDC−DCコン
バータ9に供給し、このDC−DCコンバータ9をシス
テムコントローラ2のDC−DCコンバータ制御端子に
得られる制御信号により制御して、このDC−DCコン
バータ9の出力端子9aに所定の直流電圧を得る様に
し、この出力端子9aに得られる電圧により、このカメ
ラ一体型ビデオレコーダ本体を駆動する如くする。
One and other power supply terminals 1a (1c)
And the power supply voltage obtained at 1b (1d) is supplied to the DC-DC converter 9, and the DC-DC converter 9 is controlled by a control signal obtained at the DC-DC converter control terminal of the system controller 2, and this DC-DC converter A predetermined DC voltage is obtained at an output terminal 9a of the DC converter 9, and the camera-integrated video recorder body is driven by the voltage obtained at the output terminal 9a.

【0022】本例においてはシステムコントローラ2の
第1のA/D入力端子に供給される分圧用抵抗器R1及
びR2で分圧された定電圧電源装置3よりの電源電圧値
を第1のA−D変換器でデジタルの電源電圧値Vacv
し、その後デジタル処理する如くする。
In this embodiment, the power supply voltage value from the constant voltage power supply 3 divided by the voltage dividing resistors R1 and R2 supplied to the first A / D input terminal of the system controller 2 is used as the first A A digital power supply voltage value V acv is obtained by a -D converter, and digital processing is performed thereafter.

【0023】また、このシステムコントローラ2の第2
のA/D入力端子に供給される分圧用抵抗器R3及びR
4で分圧されたバッテリ4よりの電源電圧値を第2のA
−D変換器でデジタルの電源電圧値Vbattとし、その後
デジタル処理する如くする。
Also, the second of the system controller 2
Resistors R3 and R supplied to the A / D input terminals of
The power supply voltage value from the battery 4 divided at 4
A digital power supply voltage value V batt is set by a -D converter, and then digital processing is performed.

【0024】また、このシステムコントローラ2におい
ては定電圧電源装置3が接続されているかどうかの識別
の基準電圧値をVt1として予めメモリに記憶し、バッ
テリ4が接続されているかどうかの識別の基準電圧値を
Vt2として予めメモリに記憶し、また初期充電動作時
のバッテリ4が接続されているかどうかの識別の基準電
圧値をVt3として予めメモリに記憶する如くする。
In the system controller 2, a reference voltage value for discriminating whether or not the constant voltage power supply 3 is connected is previously stored in a memory as Vt1, and a reference voltage for discriminating whether or not the battery 4 is connected. The value is stored in the memory in advance as Vt2, and the reference voltage value for identifying whether or not the battery 4 is connected at the time of the initial charging operation is stored in the memory in advance as Vt3.

【0025】次に本例の動作を図2のフローチャートを
参照して説明する。システムコントローラ2に電源が供
給されると、この第1及び第2のA−D変換器が動作
し、その出力側にデジタルの電圧値Vacv 及びVbatt
得られる(ステップS1,S2,S3)。
Next, the operation of this embodiment will be described with reference to the flowchart of FIG. When power is supplied to the system controller 2, the first and second A / D converters operate, and digital voltage values V acv and V batt are obtained at their output sides (steps S1, S2, S3). ).

【0026】次に定電圧電源装置3が接続されているか
どうかをシステムコントローラ2の第1のA−D変換器
の出力側のデジタルの電圧値Vacv が基準電圧値Vt1
より小さいかどうかにより識別する(ステップS4)。
Next, whether the constant voltage power supply 3 is connected or not is determined by the digital voltage value V acv on the output side of the first A / D converter of the system controller 2 being equal to the reference voltage value Vt1.
It is identified by whether it is smaller than (Step S4).

【0027】この場合、この電圧値Vacv がこの基準電
圧値Vt1より低いときは定電圧電源装置3が接続され
ていないと識別し、バッテリ4の充電はしない如くする
と共にこのシステムコントローラ2はこのバッテリ4で
カメラ一体型ビデオレコーダ1を駆動する如くする(ス
テップS5)。
In this case, when the voltage value Vacv is lower than the reference voltage value Vt1, it is determined that the constant voltage power supply device 3 is not connected, the battery 4 is not charged, and the system controller 2 determines that the constant voltage power supply device 3 is not connected. The camera-integrated video recorder 1 is driven by the battery 4 (step S5).

【0028】この電圧値Vacv がこの基準電圧値Vt1
より高いときは定電圧電源装置3が接続されていると識
別し、このシステムコントローラ2はこの定電圧電源装
置3でこのカメラ一体型ビデオレコーダ1を駆動する如
くすると共にバッテリ4が装着されているかどうかを、
このシステムコントローラ2の第2のA−D変換器の出
力側のデジタルの電圧値Vbattが基準電圧値Vt2より
小さいかどうかにより識別する(ステップS6)。
This voltage value Vacv is equal to this reference voltage value Vt1.
If the voltage is higher, it is determined that the constant voltage power supply 3 is connected, and the system controller 2 drives the camera-integrated video recorder 1 with the constant voltage power supply 3 and whether the battery 4 is mounted. Please,
Identification is made based on whether the digital voltage value V batt on the output side of the second A / D converter of the system controller 2 is smaller than the reference voltage value Vt2 (step S6).

【0029】この場合この電圧値Vbattがこの基準電圧
値Vt2より高いときは、バッテリ4が装着されている
と識別し、充電制御回路8を通常充電状態とし(ステッ
プS7)、その後、この定電圧電源装置3によりこのカ
メラ一体型ビデオレコーダ1を駆動すると共にバッテリ
4を充電する如くする。
In this case, when the voltage value V batt is higher than the reference voltage value Vt2, it is determined that the battery 4 is mounted, and the charge control circuit 8 is set to the normal charge state (step S7). The voltage recorder 3 drives the camera-integrated video recorder 1 and charges the battery 4.

【0030】また、この電圧値Vbattが基準電圧値Vt
2より低く例えば「0」のときは充電制御回路8を制御
して初期充電動作を行なう如くする(ステップS8)。
The voltage value V batt is equal to the reference voltage value Vt.
If it is lower than 2, for example, "0", the charging control circuit 8 is controlled to perform the initial charging operation (step S8).

【0031】この場合、バッテリ4が接続されていない
ときには電圧値Vbattは「0」となる。ところで、この
電圧値Vbattが「0」となる場合には、バッテリ4がな
いときとこのバッテリ4が過放電のためにこの電圧値V
battが「0」に近いときとがあるので、このステップS
6の時点では、バッテリ4が装着されていないと識別す
ることは出来ない。
In this case, when battery 4 is not connected, voltage value V batt is “0”. By the way, when the voltage value V batt becomes “0”, when the battery 4 is not present and when the battery 4 is over-discharged,
Since sometimes batt is close to “0”, this step S
At the time of 6, it cannot be identified that the battery 4 is not mounted.

【0032】そこで、ステップS8で初期充電を行な
う。この初期充電動作を行ったときに、バッテリ4が過
放電のときはこのバッテリ4の端子間電圧即ち第2のA
−D変換器の出力側のデジタルの電圧値Vbattは徐々に
上昇し、このときは基準電圧値Vt3より大きくならな
いが、バッテリ4が装着されていないときには、この電
圧値Vbattは一気に定電圧電源装置3の電圧の分圧用抵
抗器R3及びR4(この分圧用抵抗器R3,R4の抵抗
値は比較的大きいものとする。)で分圧した電圧値まで
上昇し、この基準電圧値Vt3より大きくなるので、ス
テップS9でこの判断を行なう。
Therefore, initial charging is performed in step S8. When the initial charging operation is performed and the battery 4 is overdischarged, the voltage between the terminals of the battery 4, that is, the second A
The digital voltage value V batt on the output side of the -D converter gradually rises and does not become larger than the reference voltage value Vt3 at this time. However, when the battery 4 is not mounted, the voltage value V batt becomes a constant voltage at a stretch. The voltage of the power supply device 3 is increased by the voltage dividing resistors R3 and R4 (the resistances of the voltage dividing resistors R3 and R4 are assumed to be relatively large), and the voltage is increased from the reference voltage value Vt3. Since it becomes larger, this determination is made in step S9.

【0033】このステップS9の判断により、この電圧
値Vbattがこの基準電圧値Vt3より大きいときはバッ
テリ4が装着されていないと判断し、システムコントロ
ーラ2は定電圧電源装置3でこのカメラ一体型ビデオレ
コーダを駆動する如くしバッテリ4の充電動作を行わな
い如くする(ステップS10)。
If the voltage value V batt is greater than the reference voltage value Vt3, it is determined in step S9 that the battery 4 is not mounted. The video recorder is driven so that the battery 4 is not charged (step S10).

【0034】このステップS9で電圧値Vbattがこの基
準電圧値Vt3より小さいときは過放電のバッテリ4と
識別し、充電制御回路8に初期充電動作をさせるように
準備し(ステップS11)、その後このシステムコント
ローラ2はこのカメラ一体型ビデオレコーダ1を、この
定電圧電源装置3で駆動するようにすると共にバッテリ
4を初期充電動作により充電する。
When the voltage value V batt is smaller than the reference voltage value Vt 3 in step S 9, the battery 4 is identified as an overdischarged battery 4 and the charge control circuit 8 is prepared to perform an initial charging operation (step S 11). The system controller 2 drives the camera-integrated video recorder 1 with the constant voltage power supply 3, and charges the battery 4 by an initial charging operation.

【0035】斯る本例によればバッテリ4の装着情報を
検出するのにこのバッテリ4の電圧により得ると共にこ
のバッテリ4の電圧が低いときには初期充電動作をしな
がら装着情報を得るようにしているので精度の高い識別
を行なうことができる利益がある。
According to the present embodiment, the mounting information of the battery 4 is obtained from the voltage of the battery 4 to detect the mounting information, and when the voltage of the battery 4 is low, the mounting information is obtained while performing the initial charging operation. Therefore, there is an advantage that highly accurate identification can be performed.

【0036】また本例によれば、機械的スイッチを使用
することなく、バッテリ4の装着情報を得るようにして
いるので、機械的な設計制約を受けないと共に部品コス
トを削減できる利益がある。
Further, according to the present embodiment, since the mounting information of the battery 4 is obtained without using a mechanical switch, there is an advantage that a mechanical design is not restricted and a component cost can be reduced.

【0037】尚、上述例は本発明をカメラ一体型ビデオ
レコーダに適用した例につき述べたが本発明をその他の
ポータブル電子機器に適用できることは勿論である。
Although the above embodiment has been described with reference to an example in which the present invention is applied to a camera-integrated video recorder, it goes without saying that the present invention can be applied to other portable electronic devices.

【0038】また本発明は上述例に限ることなく、本発
明の要旨を逸脱することなくその他種々の構成が採り得
ることは勿論である。
Further, the present invention is not limited to the above-described example, and it goes without saying that various other configurations can be adopted without departing from the gist of the present invention.

【0039】[0039]

【発明の効果】本発明によればバッテリの装着情報を検
出するのにこのバッテリの電圧により得ると共にこのバ
ッテリ4の電圧が低いときには初期充電動作をしながら
装着情報を得るようにしているので精度の高い識別を行
なうことができる利益がある。
According to the present invention, the mounting information of the battery is obtained from the voltage of the battery for detecting the mounting information, and when the voltage of the battery 4 is low, the mounting information is obtained while performing the initial charging operation. There is an advantage that a high identification can be performed.

【0040】また本発明によれば、機械的スイッチを使
用することなく、バッテリ4の装着情報を得るようにし
ているので、機械的な設計制約を受けないと共に部品コ
ストを削減できる利益がある。
Further, according to the present invention, since the mounting information of the battery 4 is obtained without using a mechanical switch, there is an advantage that a mechanical design is not restricted and a component cost can be reduced.

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

【図1】本発明ポータブル電子機器の電源識別装置の実
施の形態の例を示す構成図である。
FIG. 1 is a configuration diagram showing an example of an embodiment of a power supply identification device of a portable electronic device of the present invention.

【図2】図1の説明に供するフローチャートである。FIG. 2 is a flowchart for explaining FIG. 1;

【符号の説明】[Explanation of symbols]

1…カメラ一体型ビデオレコーダ、2…システムコント
ローラ、3…定電圧電源装置、4…バッテリ、8…充電
制御回路、9…DC−DCコンバータ
DESCRIPTION OF SYMBOLS 1 ... Video recorder integrated with a camera, 2 ... System controller, 3 ... Constant voltage power supply, 4 ... Battery, 8 ... Charge control circuit, 9 ... DC-DC converter

フロントページの続き (51)Int.Cl.6 識別記号 FI H02M 3/00 H02M 3/00 H Continued on the front page (51) Int.Cl. 6 Identification code FI H02M 3/00 H02M 3/00 H

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 定電圧電源装置及びバッテリが接続され
るようになされたポータブル電子機器であって、前記定
電圧電源装置及び前記バッテリが共に接続されていると
きには前記定電圧電源装置により前記ポータブル電子機
器を駆動すると共に前記定電圧電源装置により前記バッ
テリを充電するようにし、前記定電圧電源装置又はバッ
テリのいずれか一方が接続されているときには、この接
続されている定電圧電源装置又はバッテリで前記ポータ
ブル電子機器を駆動するようにしたポータブル電子機器
の電源識別装置において、 前記定電圧電源装置及びバッテリの夫々の電源電圧を検
出する第1およひ第2の電圧検出手段を設けると共に前
記定電圧電源装置により前記バッテリを充電するときに
前記バッテリの電圧が低いときの充電に使用する初期充
電手段と通常充電の通常充電手段とを設け、前記定電圧
電源装置が前記ポータブル電子機器に接続されていると
きで、前記バッテリの電圧が低いときには前記初期充電
手段を動作しながら前記第2の電圧検出手段により前記
バッテリが接続されているかどうかを識別するようにし
たことを特徴とするポータブル電子機器の電源識別装
置。
1. A portable electronic device to which a constant voltage power supply and a battery are connected, wherein the portable electronic device is connected to the portable electronic device by the constant voltage power supply when the constant voltage power supply and the battery are connected together. The device is driven and the battery is charged by the constant-voltage power supply. When one of the constant-voltage power supply and the battery is connected, the connected constant-voltage power supply or battery connects to the battery. A power supply identification device for a portable electronic device adapted to drive a portable electronic device, comprising: first and second voltage detecting means for detecting respective power supply voltages of the constant voltage power supply device and a battery; When the battery is charged by the power supply device, it is used for charging when the voltage of the battery is low. When the constant voltage power supply is connected to the portable electronic device and the voltage of the battery is low, the first charging unit and the second charging unit are operated while operating the initial charging unit. A power supply identification device for a portable electronic device, wherein the voltage detection means determines whether or not the battery is connected.
【請求項2】 請求項1記載のポータブル電子機器の電
源識別装置において、 前記第1及び第2の電圧検出手段はアナログ信号をデジ
タル信号に変換するA−D変換器を介して検出するよう
にしたことを特徴とするポータブル電子機器の電源識別
装置。
2. The power supply identification device for a portable electronic device according to claim 1, wherein said first and second voltage detection means detect via an A / D converter for converting an analog signal into a digital signal. A power supply identification device for a portable electronic device, comprising:
JP01593898A 1998-01-28 1998-01-28 Portable electronic device power identification device Expired - Fee Related JP3870528B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP01593898A JP3870528B2 (en) 1998-01-28 1998-01-28 Portable electronic device power identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01593898A JP3870528B2 (en) 1998-01-28 1998-01-28 Portable electronic device power identification device

Publications (2)

Publication Number Publication Date
JPH11215730A true JPH11215730A (en) 1999-08-06
JP3870528B2 JP3870528B2 (en) 2007-01-17

Family

ID=11902713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP01593898A Expired - Fee Related JP3870528B2 (en) 1998-01-28 1998-01-28 Portable electronic device power identification device

Country Status (1)

Country Link
JP (1) JP3870528B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004023955A (en) * 2002-06-19 2004-01-22 Ricoh Co Ltd Charging set of cell battery pack, and connecting detecting method of cell battery pack
JP2007236066A (en) * 2006-02-28 2007-09-13 Ricoh Co Ltd Semiconductor integrated circuit for charge control, charging equipment using the semiconductor integrated circuit for charge control, and secondary battery connection detecting method
EP1981172A2 (en) 2007-04-13 2008-10-15 Sony Corporation Wireless receiving apparatus and electronic appliance
CN103592508A (en) * 2013-12-04 2014-02-19 珠海全志科技股份有限公司 Current detection device used for coulomb measurement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004023955A (en) * 2002-06-19 2004-01-22 Ricoh Co Ltd Charging set of cell battery pack, and connecting detecting method of cell battery pack
JP2007236066A (en) * 2006-02-28 2007-09-13 Ricoh Co Ltd Semiconductor integrated circuit for charge control, charging equipment using the semiconductor integrated circuit for charge control, and secondary battery connection detecting method
JP4533329B2 (en) * 2006-02-28 2010-09-01 株式会社リコー Semiconductor integrated circuit for charge control and charging device using the semiconductor integrated circuit for charge control
EP1981172A2 (en) 2007-04-13 2008-10-15 Sony Corporation Wireless receiving apparatus and electronic appliance
US8139776B2 (en) 2007-04-13 2012-03-20 Sony Corporation Wireless receiving apparatus and electronic appliance
CN103592508A (en) * 2013-12-04 2014-02-19 珠海全志科技股份有限公司 Current detection device used for coulomb measurement

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