JPS6268065A - Electronic equipment - Google Patents

Electronic equipment

Info

Publication number
JPS6268065A
JPS6268065A JP20709385A JP20709385A JPS6268065A JP S6268065 A JPS6268065 A JP S6268065A JP 20709385 A JP20709385 A JP 20709385A JP 20709385 A JP20709385 A JP 20709385A JP S6268065 A JPS6268065 A JP S6268065A
Authority
JP
Japan
Prior art keywords
voltage
circuit
capacitor
main
charge storage
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
JP20709385A
Other languages
Japanese (ja)
Inventor
Motomu Hayakawa
早川 求
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP20709385A priority Critical patent/JPS6268065A/en
Publication of JPS6268065A publication Critical patent/JPS6268065A/en
Pending legal-status Critical Current

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  • Control Of Charge By Means Of Generators (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To prevent erroneous operation by power supply variation by providing a reverse charging preventive mechanism to a main capacitor. CONSTITUTION:In an electronic equipment in which power from a generator 1 is used as a power supply for a main circuit 11 in a system, a main capacitor for a large-capacity charge storage member 5 and an auxiliary capacitor for an auxiliary charge storage member 9 are employed, and these capacitors 5, 9 are boosted 7 and charged. A reverse charging preventive mechanism consisting of a diode 12 is fitted at that time. Accordingly, even when the so- called start mode is released, the boosting circuit 7 is operated and the voltage of the circuit 7 is lower than voltage previously charged to the auxiliary capacitor 9, the diode 12 is inserted, thus preventing the steep drop of the voltage of the auxiliary capacitor 9, then resulting in voltage, which is consumed only in the main circuit 11, provided that the erroneous operation of the main circuit 11 can be obviated.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、発電機構と発電された′電力を蓄える大容量
電荷蓄積部材と補助電荷蓄積部材を有し、その蓄積電力
をシステムの電源として使用する電子機器に関し、特に
充電回路に関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention has a power generation mechanism, a large-capacity charge storage member for storing the generated power, and an auxiliary charge storage member, and uses the stored power as a power source for a system. It relates to electronic devices used, and particularly to charging circuits.

〔発明の概要〕[Summary of the invention]

本発明は、発電機構と発電された電力を蓄える大容量電
荷蓄積部材と補助電荷蓄積部材を有し、その蓄積電力を
システムの電源として使用する電子機器において、補助
電荷蓄積部材から大容量電荷蓄積部材への逆充電防止機
構を設けたことにより、システムの誤動作を防ぐもので
ある。
The present invention provides an electronic device that has a power generation mechanism, a large-capacity charge storage member that stores the generated power, and an auxiliary charge storage member, and that uses the stored power as a power source for a system. By providing a mechanism to prevent reverse charging of members, malfunction of the system is prevented.

〔従来の技術〕[Conventional technology]

従来の発電機構からの電力をシステムの電源として使用
する電子機器の構成は、第2図に示す。
The configuration of an electronic device that uses electric power from a conventional power generating mechanism as a power source for the system is shown in FIG.

大容量電荷蓄積部材5には大容量コンデンサー(以下「
主コンデンサ−」と称す、)を用い、補助電荷蓄積部材
9には主コンデンサーより大幅に容量の小さなコンデン
サー(以下「補助コンデンサー」と称す。)【用いて、
発電機1から交流電流を取り出して、整流用ダイオード
2により整流して、主コンデンサ−5に充電していた。
The large-capacity charge storage member 5 has a large-capacity capacitor (hereinafter referred to as “
A capacitor (hereinafter referred to as "auxiliary capacitor") whose capacity is significantly smaller than that of the main capacitor (hereinafter referred to as "auxiliary capacitor") is used as the auxiliary charge storage member 9.
An alternating current was taken out from a generator 1, rectified by a rectifier diode 2, and charged into a main capacitor 5.

そして、主コンデンサ−5の充電状態により、即スター
トモードと昇圧モードとにわかれていた。
Depending on the state of charge of the main capacitor 5, there is an immediate start mode and a boost mode.

即スタートモードとは、主コンデンサ−5の充電電圧が
低い時のモードである。主回路11の動作可能電圧をV
Op、昇圧囲路7の昇圧倍率を惇とした時、 vaect x vop      ・・・”・(i)
なる検出電圧Vdect  を有する電圧検出用回路6
により、主コンデンサ−5の電圧VscがVdectよ
り大きいか小さいかの判定がなされる。
The immediate start mode is a mode when the charging voltage of the main capacitor 5 is low. The operable voltage of the main circuit 11 is V
Op, when the boosting magnification of the boosting circuit 7 is assumed to be equal, vaect x vop...”・(i)
A voltage detection circuit 6 having a detection voltage Vdect of
Accordingly, it is determined whether the voltage Vsc of the main capacitor 5 is larger or smaller than Vdect.

Vsa (Vdeat    軸・−・(2)の時は、
(す式よりVeaを昇圧しても主回路11の動作に至ら
ないため、昇圧回路7の動作を禁止して即スタートモー
ドに入る。この時、制御回路10によりシ璽−ト用トラ
ンジスター4をオフにして、発電機1より得られる電流
を工G1直列抵抗5の抵抗値をR8、主コンデンサ−5
の内部抵抗をrとした時、 vo=vso−1−zts(us+r)   =(a)
なる電圧vOが補助コンデンサー9に、ダイオード8を
通して充電され、主回11’1511の電源となる、R
EIはVo>Vopになるように設定されており、した
がって、主回路11の動作が可能となる。
Vsa (Vdeat axis --- When (2),
(From the formula, boosting Vea does not lead to the operation of the main circuit 11, so the operation of the booster circuit 7 is prohibited and the start mode is entered immediately. At this time, the control circuit 10 turns on the transistor 4 for shutting off. Turn off the current obtained from the generator 1, set the resistance value of the G1 series resistor 5 to R8, and the main capacitor -5.
When the internal resistance of is r, vo=vso-1-zts(us+r) = (a)
A voltage vO is charged to the auxiliary capacitor 9 through the diode 8, and becomes the power source for the main circuit 11'1511.
EI is set so that Vo>Vop, so that the main circuit 11 can operate.

即スタートモード時に、定期的にシw −)用トランジ
スター4をオンにして、電圧検出用回W’t6によりV
scを検出した際、V8C≧Vd 8 Q t  なる
条件まで主コンデンサ−5が充電されていた場合、昇圧
モードに入る。この条件のもとでは、VscX%≧Vo
p  となり、昇圧回路7を動作させても、主回路11
が動作可能となる。この時、即スタートモードとは違い
、v8Cのみを昇圧すれば良く、工uXRsの電圧は不
要なため、シ房−ト用トランジスター4をオンにして、
Vso  を昇圧回路7により昇圧して、補助コンデン
サー9に充電して、主回路11の電源としていた。
In the immediate start mode, the voltage detection circuit W't6 periodically turns on the transistor 4 for voltage detection.
If the main capacitor 5 has been charged to the condition that V8C≧Vd 8 Q t when SC is detected, the step-up mode is entered. Under this condition, VscX%≧Vo
p, and even if the booster circuit 7 is operated, the main circuit 11
becomes operational. At this time, unlike the immediate start mode, only V8C needs to be boosted, and the voltage of uXRs is not required, so turn on the start transistor 4,
Vso was boosted by a booster circuit 7 and charged into an auxiliary capacitor 9, which was used as a power source for the main circuit 11.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかし従来の回部構成では、即スタートモード時には、
補助コンデンサー9には(8)式におけるvOが充電さ
れており、また、即スタートモード解除時は、補助コン
デンサー9には、v8cx%の電圧が充電されようとす
る。この時、Vo>vI30×鴨であった場合、昇圧回
路7が動作した瞬間に、補助コンデンサー9から主コン
デンサ−5に、昇圧回路7を通して逆充電がなされ、急
峻に補助コンデンサー9の電圧が、VsoXs  まで
降下してしまい、主回路11の誤動作につながる可能性
があった。
However, with the conventional circuit configuration, in the immediate start mode,
The auxiliary capacitor 9 is charged with vO in equation (8), and when the immediate start mode is released, the auxiliary capacitor 9 is about to be charged with a voltage of v8cx%. At this time, if Vo > vI30 x duck, the moment the booster circuit 7 operates, reverse charging is performed from the auxiliary capacitor 9 to the main capacitor 5 through the booster circuit 7, and the voltage of the auxiliary capacitor 9 suddenly increases. There was a possibility that the voltage dropped to VsoXs, leading to malfunction of the main circuit 11.

また、即スタートモードの時、電圧検出時には、シ璽−
ト用トランジスター4をオンにするのだが、トランジス
ター4のオン抵抗をran  とした場合、 V、=VsO+工u(ron+ r )  ”(4)な
るvlを検出し、V t ) V(l a a t で
あったなら、昇圧モードに入る。しかし、(4)式より
vIao〈v8なので、Vso(Vdect  という
状態で昇圧モードに入る場合も多々ある。この場合も、
補助コンデンサー9の電圧はVao X%の電圧まで急
峻に降下してしまう。しかし、Vsic(Vdect 
 よりVaoX%(V o p  となり、主回路11
の動作可能電圧に補助コンデンサー9の電圧が至らず、
システムの停止を生じてしまう。
In addition, when in immediate start mode, when detecting voltage, the seal -
If the on-resistance of transistor 4 is ran, V, = VsO + u(ron+r)'' (4) is detected, and Vt) V(la a t, the boost mode is entered.However, from equation (4), vIao<v8, so the boost mode is often entered in the state of Vso(Vdect).In this case as well,
The voltage of the auxiliary capacitor 9 drops sharply to the voltage of Vao X%. However, Vsic(Vdect
Therefore, VaoX% (V o p ) is obtained, and the main circuit 11
The voltage of auxiliary capacitor 9 does not reach the operable voltage of
This will cause the system to stop.

〔問題点を解決するための手段〕[Means for solving problems]

上記問題点を解決するために、本発明の電子機器は、少
なくとも発電機構と該発電機構で発電された電力を蓄え
る主コンデンサーと、咳主コンデンサーに蓄積された電
圧を昇降圧する昇降圧回路と、該昇降圧回路によって昇
降圧された電力を蓄える主コンデンサーより容量の小さ
な補助コンデンサーと、主コンデンサーに充電された電
圧が、規定の電圧より低い時に、昇降圧回路を切)離し
て主コンデンサーに直列に電気的負荷を接続して負荷の
電圧降下によりて必要な電圧を発生せしめる制御回路を
有する電子機器において、該補助コンデンサーから該主
コンデンサーへの逆充電防止機構を有することを特徴と
する。
In order to solve the above problems, an electronic device of the present invention includes at least a power generation mechanism, a main capacitor that stores the power generated by the power generation mechanism, and a step-up/down circuit that steps up and down the voltage accumulated in the main capacitor. When the voltage charged in the main capacitor is lower than the specified voltage, the buck-boost circuit is disconnected and the auxiliary capacitor is connected in series with the main capacitor. An electronic device having a control circuit that connects an electrical load to a circuit and generates a necessary voltage by voltage drop of the load, characterized by having a mechanism for preventing reverse charging from the auxiliary capacitor to the main capacitor.

〔作用〕[Effect]

本発明の作用を述べれば、即スタートモード解除後、補
助コンデンサーに蓄積された電荷が、逆充電防止機構に
よって、急峻に主コンデンサーに逆充電されないことに
ある。
The effect of the present invention is that after the immediate start mode is canceled, the charge accumulated in the auxiliary capacitor is not rapidly reversely charged to the main capacitor by the reverse charging prevention mechanism.

〔実施例〕〔Example〕

第1図は本発明のシステム図である。ダイオード12が
本発明における逆充電防止機構となる。
FIG. 1 is a system diagram of the present invention. The diode 12 serves as a reverse charge prevention mechanism in the present invention.

即スタートモードにおける、主コンデンサ−5への充電
機構は従来の技術と同様である。また、補助コンデンサ
ー9には(3)式におけるvOが充電されるのだが、昇
圧回路7が非動作であっても、ダイオード8と、さらに
ダイオード12は、主コンデンサ−5から補助コンデン
サー9に充電されるのに、順方向に挿入されているため
、補助コンデンサー9にはvOの充電が可能となる。こ
の時、電圧検出用回路6により、Vsc)Vdectと
なりた場合、即スタートモードが解除されるのだが、昇
圧回路7が作動して、Vβ0×外の電圧が、あらかじめ
補助コンデンサー9に充電されていたVoより低くても
、逆充電防止ダイオード12が、補助コンデンサー9か
ら主コンデンサ−5への逆充電に対して、逆方向に挿入
されているため、補助コンデンサー9の電圧は急峻に降
下することなく、主回路11で消費される分にとどまり
、徐々にvaoxsの電圧に近づいていき、主回路11
が誤動作することはない。
The charging mechanism for the main capacitor 5 in the immediate start mode is the same as that of the conventional technology. Also, the auxiliary capacitor 9 is charged with vO in equation (3), but even if the booster circuit 7 is inactive, the diode 8 and further the diode 12 charge the auxiliary capacitor 9 from the main capacitor 5. However, since it is inserted in the forward direction, the auxiliary capacitor 9 can be charged with vO. At this time, if the voltage is set to Vsc)Vdect by the voltage detection circuit 6, the immediate start mode is canceled, but the boost circuit 7 is activated and the voltage outside of Vβ0× is charged to the auxiliary capacitor 9 in advance. Even if the voltage is lower than Vo, the voltage of the auxiliary capacitor 9 will drop sharply because the reverse charge prevention diode 12 is inserted in the opposite direction to reverse charging from the auxiliary capacitor 9 to the main capacitor 5. Instead, the voltage consumed by the main circuit 11 remains, gradually approaching the voltage of vaoxs, and the main circuit 11
will not malfunction.

〔効果〕〔effect〕

以上説明したように、本発明によれば、逆充電防止機構
を取り付けただけという簡単な方法によって、即スター
トモード解除時、補助コンデンサー電圧があらかじめ充
電されていて、主コンデンサー電圧を昇圧した結果より
高くても、システムの電源となる補助コンデンサーの電
圧が急峻に降下することがなく、電源変動による回路の
誤動作を防ぐことができる。また、主コンデンサー電圧
を昇圧してもなお、システムの動作電圧に至らない場合
でも、主コンデンサーの内部抵抗に瞬間的に電流が流れ
て、電圧降下が発生したことにより、誤って即スタート
が解除されることがあるが、そういう場合でも、補助コ
ンデンサー電圧が、システムの動作不可能な主コンデン
サーの昇圧電圧まで急峻に降下しない。したがって補助
コンデンサーの電圧消費は主回路の消費分のみになるの
で、次の電圧検出時には再び、即スタートモードに戻る
ことができるので、システムの停止してしまう可能性は
大幅に低減できる。このように、即スタートモードの解
除時の誤動作の可能性が大幅に低減できたことにより、
即スタートモードの解除、非解除を制御する系の負担を
軽減することができる。今後、発電機構を有し、即スタ
ートモードな有する電子機器において本発明を応用すれ
ば、より確実な動作保証が得られる。
As explained above, according to the present invention, by simply installing a reverse charge prevention mechanism, when the immediate start mode is canceled, the auxiliary capacitor voltage is charged in advance and the main capacitor voltage is increased. Even if the voltage is high, the voltage of the auxiliary capacitor that powers the system will not drop sharply, preventing circuit malfunctions due to power fluctuations. In addition, even if the main capacitor voltage is boosted but still does not reach the operating voltage of the system, current momentarily flows through the main capacitor's internal resistance, causing a voltage drop and causing the immediate start to be canceled by mistake. However, even in such cases, the auxiliary capacitor voltage does not fall too quickly to the boosted voltage of the main capacitor, which makes the system inoperable. Therefore, since the voltage consumption of the auxiliary capacitor is only that of the main circuit, the system can return to the immediate start mode again when the next voltage is detected, greatly reducing the possibility that the system will stop. In this way, the possibility of malfunction when canceling immediate start mode has been greatly reduced,
The burden on the system that controls whether or not to cancel the immediate start mode can be reduced. In the future, if the present invention is applied to electronic equipment having a power generation mechanism and an immediate start mode, more reliable operation guarantees can be obtained.

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

第1図は本発明における実施例で、逆充電防止機構を設
けた電子機器の回路図である。第2図は従来例における
電子機器の回路図である。 1・・・・・・発電機 2・・・・・・整流用ダイオード 3・・・・・・直列抵抗 4・・・・・・シ薗−ト用トランジスター5・・・・・
・主コンデン? − 6・・・・・・電圧検出用回路 7・・・・・・昇圧回路 8・・・・・・ダイオード 9・・・・・・補助コンデンサー 10・・・制御回路 11・・・主回路 以  上
FIG. 1 is an embodiment of the present invention, which is a circuit diagram of an electronic device provided with a reverse charge prevention mechanism. FIG. 2 is a circuit diagram of a conventional electronic device. 1... Generator 2... Rectifier diode 3... Series resistor 4... Seat transistor 5...
・Main condenser? - 6... Voltage detection circuit 7... Boost circuit 8... Diode 9... Auxiliary capacitor 10... Control circuit 11... Main circuit that's all

Claims (1)

【特許請求の範囲】[Claims] 少なくとも発電機構と該発電機構で発電された電力を蓄
える大容量電荷蓄積部材と、該大容量電荷蓄積部材に蓄
積された電圧を昇降圧する昇降圧回路と、該昇降圧回路
によって昇降圧された電力を蓄える該大容量電荷蓄積部
材より容量の小さな補助電荷蓄積部材と、該大容量電荷
蓄積部材に充電された電圧が、規定の電圧より低い時に
、昇降圧回路を切り離して該大容量電荷蓄積部材に直列
に電気的負荷を接続して負荷の電圧降下によって必要な
電圧を発生せしめる制御回路を有する電子機器において
、該補助電荷蓄積部材から該大容量電荷蓄積部材への逆
充電防止機構を有することを特徴とした電子機器。
At least a power generation mechanism, a large-capacity charge storage member that stores the electric power generated by the power generation mechanism, a step-up/down circuit that steps up and down the voltage accumulated in the large-capacity charge storage member, and the electric power stepped up and down by the step-up/down circuit. an auxiliary charge storage member having a smaller capacity than the large-capacity charge storage member that stores In an electronic device having a control circuit that connects an electrical load in series to generate a necessary voltage by the voltage drop of the load, the electronic device has a mechanism to prevent reverse charging from the auxiliary charge storage member to the large capacity charge storage member. Electronic equipment featuring
JP20709385A 1985-09-19 1985-09-19 Electronic equipment Pending JPS6268065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20709385A JPS6268065A (en) 1985-09-19 1985-09-19 Electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20709385A JPS6268065A (en) 1985-09-19 1985-09-19 Electronic equipment

Publications (1)

Publication Number Publication Date
JPS6268065A true JPS6268065A (en) 1987-03-27

Family

ID=16534083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20709385A Pending JPS6268065A (en) 1985-09-19 1985-09-19 Electronic equipment

Country Status (1)

Country Link
JP (1) JPS6268065A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02171408A (en) * 1988-12-26 1990-07-03 Dowa:Kk Method for melting snow and device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02171408A (en) * 1988-12-26 1990-07-03 Dowa:Kk Method for melting snow and device thereof

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