JPH10260739A - Power unit - Google Patents
Power unitInfo
- Publication number
- JPH10260739A JPH10260739A JP9064655A JP6465597A JPH10260739A JP H10260739 A JPH10260739 A JP H10260739A JP 9064655 A JP9064655 A JP 9064655A JP 6465597 A JP6465597 A JP 6465597A JP H10260739 A JPH10260739 A JP H10260739A
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- Prior art keywords
- stage
- power supply
- output
- output system
- circuit
- Prior art date
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- Supply And Distribution Of Alternating Current (AREA)
- Control Of Voltage And Current In General (AREA)
- Ac-Ac Conversion (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術の分野】本発明は、商用トランスを
有する電源装置に関し、より詳しくは、負荷投入時の突
入電流を効果的に抑制できる電源装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply having a commercial transformer, and more particularly, to a power supply capable of effectively suppressing an inrush current when a load is applied.
【０００２】[0002]
【従来の技術】通常、医療機器装置等においては、例え
ば図７に示すように第１、第２の負荷設備３１、３２を
駆動するために、複数（２個）の出力系統（出力巻線）
を有する商用トランスＴが実装される。2. Description of the Related Art Normally, in a medical equipment device or the like, a plurality of (two) output systems (output windings) are used to drive first and second load facilities 31, 32 as shown in FIG. )
Is mounted.
【０００３】このような商用トランスＴにおいては、複
数の出力系統に第１、第２の負荷設備３１、３２を接続
して電源（ＡＣ１００Ｖ又は２００Ｖ等の商用電源）を
投入すると大きな突入電流が流れる。In such a commercial transformer T, when the first and second load facilities 31 and 32 are connected to a plurality of output systems and a power supply (a commercial power supply such as 100 V AC or 200 V) is turned on, a large rush current flows. .
【０００４】即ち、電源装置全体で見た場合、図８に示
すように、突入電流Ｉo は出力系統に接続された第１、
第２の負荷設備３１、３２による各突入電流Ｉ1 、Ｉ2
の総和となり、場合によっては、１００Ａを越えてしま
う事もある。[0004] That is, when viewed from the whole power supply device, as shown in FIG. 8, the inrush current Io is the first inrush current Io connected to the output system.
Each inrush current I1, I2 by the second load equipment 31, 32
, And may exceed 100 A in some cases.
【０００５】[0005]
【発明が解決しようとする課題】従来においては、図７
に示すように、商用トランスＴの入力側に抵抗等を用い
た突入電流抑制回路３３を組み込み、電源投入時の上述
した大きな突入電流Ｉoを抑制することが行われてい
る。In the prior art, FIG.
As shown in (1), a rush current suppression circuit 33 using a resistor or the like is incorporated on the input side of the commercial transformer T to suppress the above-mentioned large rush current Io when the power is turned on.
【０００６】しかしながら、商用トランスＴの出力系統
数が多いときには、商用トランスＴの入力側の突入電流
抑制回路３３のみで大きな突入電流Ｉo の抑制を実現す
るための抵抗等の回路要素が大型化してしまい、電源装
置に設けたプリント回路基板上に突入電流抑制回路３３
を実装できない等の不都合が生じていた。However, when the number of output systems of the commercial transformer T is large, circuit elements such as resistors for realizing the suppression of the large inrush current Io only by the inrush current suppressing circuit 33 on the input side of the commercial transformer T become large. That is, the rush current suppressing circuit 33 is mounted on a printed circuit board provided in the power supply device.
Disadvantages, such as the inability to implement
【０００７】そこで、本発明は上記の課題を解決するた
めになされてものであり、小型簡略な構成で、商用トラ
ンスを有する電源装置における電源投入時の突入電流を
効果的に抑制できる電源装置を提供することを目的とす
る。Accordingly, the present invention has been made to solve the above-mentioned problem, and a power supply device having a small and simple configuration and capable of effectively suppressing a rush current at the time of power-on in a power supply device having a commercial transformer. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】請求項１記載の発明は、
複数の出力系統を備えた商用トランスを備え、各出力系
統に各々負荷が接続される電源装置において、前記複数
の出力系統に各々接続した各々の出力系統をオン／オフ
するオン／オフ回路と、各出力系統のオン／オフ回路
を、非同期でオン駆動するオン／オフ制御回路とを有す
ることを特徴とするものである。According to the first aspect of the present invention,
A power supply device including a commercial transformer having a plurality of output systems and a load connected to each output system, an on / off circuit for turning on / off each output system connected to each of the plurality of output systems; An on / off control circuit for asynchronously driving the on / off circuit of each output system is provided.
【０００９】この発明によれば、商用トランスに備えた
複数の出力系統に各々負荷を接続した状態で電源を投入
した際、オン／オフ制御回路が、複数の出力系統に各々
接続したオン／オフ回路を非同期でオン駆動するので、
個々の負荷による突入電流が同時に流れることが防止さ
れ、電源投入時の突入電流を効果的に抑制できる。According to the present invention, when the power is turned on while a load is connected to each of the plurality of output systems provided in the commercial transformer, the on / off control circuit causes the on / off control circuit to connect to each of the plurality of output systems. Since the circuit is turned on asynchronously,
Inrush currents due to individual loads are prevented from flowing at the same time, and the inrush current when the power is turned on can be effectively suppressed.
【００１０】請求項２記載の発明は、複数の出力系統を
備えた商用トランス備え、各出力系統に各々負荷が接続
される電源装置において、初段から最終段に亘る各出力
系統に各々接続した励磁電流の有無により各出力系統を
オン／オフする電磁開閉器と、前記商用トランスへの商
用電源投入時に、初段の電磁開閉器に励磁電流を供給し
て初段の出力系統をオンさせるオン／オフ制御回路と、
初段から最終段の一つ前段の各出力系統と、二段目から
最終段までの各電磁開閉器との間に各々接続され、前記
オン／オフ制御回路による初段の出力系統のオン動作に
伴って、初段の出力系統から最終段の出力系統へ向かう
順序で二段目以降の電磁開閉器に各々前段側から励磁電
流を供給して各電磁開閉器を順次オン駆動する励磁電流
供給回路群とを有することを特徴とするものである。According to a second aspect of the present invention, there is provided a power supply device having a commercial transformer having a plurality of output systems and a load connected to each output system, wherein the excitation is connected to each output system from the first stage to the last stage. An electromagnetic switch for turning on / off each output system according to the presence or absence of a current, and on / off control for supplying an exciting current to the first-stage electromagnetic switch to turn on the first-stage output system when the commercial power to the commercial transformer is turned on. Circuit and
It is connected between each output system of one stage before the first stage to the last stage and each electromagnetic switch from the second stage to the last stage, and is associated with the ON operation of the first stage output system by the on / off control circuit. An exciting current supply circuit group that supplies an exciting current from the preceding stage to the second and subsequent electromagnetic switches in order from the first stage output system to the final stage output system, and sequentially turns on each electromagnetic switch; It is characterized by having.
【００１１】この発明によれば、商用トランスへの商用
電源投入時に、オン／オフ制御回路がまず初段の電磁開
閉器に励磁電流を供給して初段の出力系統をオンさせ
る。According to the present invention, when the commercial power is supplied to the commercial transformer, the on / off control circuit first supplies the exciting current to the first-stage electromagnetic switch to turn on the first-stage output system.
【００１２】初段の出力系統のオン動作に伴い、初段か
ら最終段の一つ前段の各出力系統と、二段目から最終段
までの各電磁開閉器との間に各々設けた励磁電流供給回
路群が、初段の出力系統から最終段の出力系統へ向かう
順序で二段目以降の電磁開閉器に各々前段側から励磁電
流を供給して各電磁開閉器を順次オン駆動する。With the on-operation of the first stage output system, an exciting current supply circuit provided between each of the first stage to the last stage one output stage and the second stage to the last stage electromagnetic switch. The group supplies an exciting current from the front stage side to the second and subsequent electromagnetic switches in the order from the first stage output system to the last stage output system, and sequentially turns on each electromagnetic switch.
【００１３】これにより、初段から最終段の各出力系統
に接続した各負荷による突入電流が同時に流れることが
防止され、電源投入時の突入電流を効果的に抑制でき
る。As a result, the inrush current caused by the loads connected to the output systems from the first stage to the last stage can be prevented from flowing simultaneously, and the inrush current when the power is turned on can be effectively suppressed.
【００１４】[0014]
【発明の実施の形態】以下に、本発明の電源装置の実施
の形態を詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the power supply device of the present invention will be described in detail.
【００１５】（実施の形態１）まず、図１、図２を参照
して本発明の実施の形態１を詳述する。(Embodiment 1) First, Embodiment 1 of the present invention will be described in detail with reference to FIGS.
【００１６】図１に示す電源装置は、商用電源（例えば
ＡＣ１００Ｖ）１０に入力巻線Ｎ0を接続するととも
に、２系統の出力巻線Ｎ1 、Ｎ2 を備え、２系統の出力
巻線Ｎ1 、Ｎ2 により図示しない２個の負荷を接続する
第１、第２の出力系統を構成する商用トランスＴと、こ
の商用トランスＴの出力巻線Ｎ1 、Ｎ2 に各々接続した
例えばトランジスタスイッチング回路を用いた第１、第
２のオン／オフ回路１、２と、この第１、第２のオン／
オフ回路１、２を非同期（例えば数１０ｍｓの差）でオ
ン駆動するオン／オフ制御回路９とを具備している。The power supply device shown in FIG. 1 has an input winding N0 connected to a commercial power supply (for example, AC 100V) 10 and has two output windings N1 and N2, and two output windings N1 and N2. Commercial transformers T constituting first and second output systems for connecting two loads (not shown), and first and second transformers using, for example, transistor switching circuits connected to output windings N1 and N2 of the commercial transformer T, respectively. The second on / off circuits 1 and 2 and the first and second on / off circuits
An on / off control circuit 9 for driving the off circuits 1 and 2 asynchronously (for example, a difference of several tens of ms) is provided.
【００１７】この電源装置によれば、第１、第２の出力
系統に各々図示しない２個の負荷を接続して商用電源１
０からの電力を商用トランスＴに投入した際、オン／オ
フ制御回路９が、前記第１、第２のオン／オフ回路１、
２を非同期（例えば数ｍｓ乃至数１０ｍｓの差）でオン
駆動する。According to this power supply device, two loads (not shown) are connected to the first and second output systems, respectively, to
When power from 0 is supplied to the commercial transformer T, the on / off control circuit 9 causes the first and second on / off circuits 1,
2 is turned on asynchronously (for example, a difference of several ms to several tens ms).
【００１８】これにより、図２に示すように、第１、第
２の出力系統の２個の負荷による各突入電流Ｉ1 、Ｉ2
の間には例えば数ｍｓ乃至数１０ｍｓの時間差が生じ
る。As a result, as shown in FIG. 2, each of the inrush currents I1, I2 due to the two loads of the first and second output systems,
For example, a time difference of several milliseconds to several tens of milliseconds occurs.
【００１９】この結果、突入電流Ｉ1 、Ｉ2 が同時に流
れることが防止され、電源投入時に大きな突入電流が流
れることを効果的に防止でき、また、第１、第２のオン
／オフ回路１、２も、各々第１、第２の出力系統の負荷
電流に耐える回路構成で足りるため、小型簡略に構成で
きる。As a result, the inrush currents I1 and I2 are prevented from flowing simultaneously, and a large inrush current is effectively prevented from flowing when the power is turned on. The first and second on / off circuits 1, 2 In this case, the circuit configuration can withstand the load currents of the first and second output systems.
【００２０】図３は、本発明の実施の形態１の変形例を
示すものであり、基本的な構成は実施の形態１の場合と
同様であるが、商用トランスＴに３系統の出力巻線Ｎ1
、Ｎ2 、Ｎ3 を備え、３系統の出力巻線Ｎ1 、Ｎ2 、
Ｎ3 により図示しない３個の負荷を接続する第１乃至第
３の出力系統を構成したこと、出力巻線Ｎ3 にも例えば
トランジスタスイッチング回路を用いた第３のオン／オ
フ回路３を接続し、オン／オフ制御回路９により第１乃
至第３のオン／オフ回路１乃至３を非同期（例えば数ｍ
ｓ乃至数１０ｍｓの差）で順次オン駆動するようにした
ことが特徴である。FIG. 3 shows a modification of the first embodiment of the present invention. The basic configuration is the same as that of the first embodiment. N1
, N2, N3, and three output windings N1, N2,
First to third output systems for connecting three loads (not shown) are constituted by N3. A third on / off circuit 3 using, for example, a transistor switching circuit is also connected to the output winding N3. The first to third on / off circuits 1 to 3 are asynchronously operated (for example, several m
(a difference of s to several tens of ms).
【００２１】この図３に示す電源装置によっても、商用
電源１０からの電力を商用トランスＴに投入した際、３
個の負荷による大きな突入電流が流れることを効果的に
防止できる。また、第１乃至第３のオン／オフ回路１乃
至３も、各々第１乃至第３の出力系統の負荷電流に耐え
る回路構成で足りるため、小型簡略に構成できる。When the power from the commercial power supply 10 is supplied to the commercial transformer T by the power supply device shown in FIG.
It is possible to effectively prevent a large inrush current from flowing through the individual loads. Also, the first to third on / off circuits 1 to 3 need only have a circuit configuration that can withstand the load currents of the first to third output systems, and thus can be configured to be small and simple.
【００２２】（実施の形態２）次に、図４を参照して本
発明の実施の形態２の電源装置について説明する。(Embodiment 2) Next, a power supply device according to Embodiment 2 of the present invention will be described with reference to FIG.
【００２３】この電源装置は、商用電源（例えばＡＣ１
００Ｖ）１０に入力巻線Ｎ0 を接続するとともに、２系
統の出力巻線Ｎ1 、Ｎ2 を備え、２系統の出力巻線Ｎ1
、Ｎ2 により図示しない２個の負荷を接続する第１、
第２の出力系統を構成する商用トランスＴと、この商用
トランスＴの出力巻線Ｎ1 、Ｎ2 に各々接続した開閉端
子２１及び励磁巻線２２からなる第１、第２の電磁開閉
器（リレー）１１、１２と、商用電源１０からの電力を
商用トランスＴに投入した際、第１の電磁開閉器１１の
励磁巻線２２に励磁電流を供給し、開閉端子２１をオン
駆動するオン／オフ制御回路２０と、第１の電磁開閉器
１１の後段側の第１の出力系統を構成する線路間と前記
第２の電磁開閉器１２の励磁巻線２２とに亘って配線さ
れた抵抗Ｒ1 を含む第１の励磁電流供給回路１６とを具
備している。This power supply device is a commercial power supply (for example, AC1
00V) The input winding N0 is connected to 10 and two output windings N1 and N2 are provided.
, N2 to connect two loads (not shown).
First and second electromagnetic switches (relays) comprising a commercial transformer T constituting a second output system, and a switching terminal 21 and an exciting winding 22 connected to output windings N1 and N2 of the commercial transformer T, respectively. On / off control for supplying an exciting current to the exciting winding 22 of the first electromagnetic switch 11 and turning on the switching terminal 21 when power from the commercial power supply 10 is supplied to the commercial transformer T The circuit includes a circuit and a resistor R1 wired between lines constituting a first output system on the downstream side of the first electromagnetic switch and an excitation winding of the second electromagnetic switch. And a first exciting current supply circuit 16.
【００２４】この電源装置によれば、第１、第２の出力
系統に各々図示しない２個の負荷を接続して商用電源１
０からの電力を商用トランスＴに投入した際、オン／オ
フ制御回路２０が、前記第１の電磁開閉器１１の励磁巻
線２２に励磁電流を供給し、開閉端子２１をオン駆動す
る。According to this power supply, two loads (not shown) are connected to the first and second output systems, respectively.
When power from 0 is supplied to the commercial transformer T, the on / off control circuit 20 supplies an exciting current to the exciting winding 22 of the first electromagnetic switch 11 to turn on the switching terminal 21.
【００２５】これにより、第１の出力系統の負荷による
突入電流Ｉ1 が商用トランスＴの出力巻線Ｎ1 に流れ
る。As a result, an inrush current I1 due to the load of the first output system flows through the output winding N1 of the commercial transformer T.
【００２６】このとき、前記第１の励磁電流供給回路１
６は、抵抗Ｒ1 を介して前記第２の電磁開閉器１２の励
磁巻線２２に励磁電流を供給し、その開閉端子２１をオ
ン駆動する。At this time, the first exciting current supply circuit 1
6 supplies an exciting current to the exciting winding 22 of the second electromagnetic switch 12 via the resistor R1 to turn on the switching terminal 21 thereof.
【００２７】この結果、第１の出力系統の負荷による突
入電流Ｉ2 が商用トランスＴの出力巻線Ｎ1 に流れる。As a result, an inrush current I2 due to the load of the first output system flows through the output winding N1 of the commercial transformer T.
【００２８】このような突入電流Ｉ1 、Ｉ2 の間には、
図５に示すように、前記第１の励磁電流供給回路１６に
よる第２の電磁開閉器１２の励磁巻線２２に対する励磁
電流の供給と、開閉端子２１のオン動作のための所要時
間からなる例えば数ｍｓ乃至数１０ｍｓの遅延時間が生
じる。Between such inrush currents I1 and I2,
As shown in FIG. 5, the first excitation current supply circuit 16 supplies the excitation current to the excitation winding 22 of the second electromagnetic switch 12 and the time required for the ON operation of the switching terminal 21. A delay time of several ms to several tens ms occurs.
【００２９】これにより、突入電流Ｉ1 、Ｉ2 が同時に
流れることが防止され、電源投入時に大きな突入電流が
流れることを効果的に防止できる。また、この電源装置
によれば、第１、第２の電磁開閉器（リレー）１１、１
２を用いて構成できるので、全体構成が極めて簡略とな
る。This prevents the inrush currents I1 and I2 from flowing at the same time, and effectively prevents a large inrush current from flowing when the power is turned on. According to this power supply device, the first and second electromagnetic switches (relays) 11, 1
2, the overall configuration is extremely simplified.
【００３０】図６は、実施の形態２の変形例を示すもの
であり、基本的な構成は実施の形態１の場合と同様であ
るが、商用トランスＴに３系統の出力巻線Ｎ1 、Ｎ2 、
Ｎ3を備え、３系統の出力巻線Ｎ1 、Ｎ2 、Ｎ3 により
図示しない３個の負荷を接続する第１乃至第３の出力系
統を構成したこと、出力巻線Ｎ3 にも第３の電磁開閉器
（リレー）１３を接続し、第２の電磁開閉器１２の後段
側の第２の出力系統を構成する線路間と前記第３の電磁
開閉器１３の励磁巻線２２とに亘って配線された抵抗Ｒ
2 を含む第２の励磁電流供給回路１７を付加したことが
特徴である。FIG. 6 shows a modification of the second embodiment. The basic configuration is the same as that of the first embodiment, but three lines of output windings N1 and N2 are connected to the commercial transformer T. ,
N3, first to third output systems for connecting three loads (not shown) are constituted by three output windings N1, N2, and N3. A third electromagnetic switch is also provided on the output winding N3. (Relay) 13 is connected, and is wired between the lines forming the second output system on the subsequent stage of the second electromagnetic switch 12 and the excitation winding 22 of the third electromagnetic switch 13. Resistance R
2 is characterized in that a second exciting current supply circuit 17 including 2 is added.
【００３１】この図６に示す電源装置によっても、商用
電源１０からの電力を商用トランスＴに投入した際、３
個の負荷による大きな突入電流が流れることを効果的に
防止できる。また、第１乃至第３の電磁開閉器（リレ
ー）１１乃至１３を用いて構成できるので、全体構成が
極めて簡略となる。When the electric power from the commercial power supply 10 is applied to the commercial transformer T by the power supply device shown in FIG.
It is possible to effectively prevent a large inrush current from flowing through the individual loads. In addition, since it can be configured using the first to third electromagnetic switches (relays) 11 to 13, the overall configuration is extremely simplified.
【００３２】本発明は上述した実施の形態１、２の他、
種々の変形が可能である。The present invention provides, in addition to the first and second embodiments described above,
Various modifications are possible.
【００３３】例えば、前記出力系統の数は、上述した２
系統、３系統の他、５系統、８系統等任意数の系統数と
しても実施の形態１、２の場合と同様にして各々電源装
置を構成可能である。For example, the number of the output systems is 2
As with the first and second embodiments, the power supply device can be configured with any number of systems such as five systems and eight systems in addition to the three systems.
【００３４】[0034]
【発明の効果】請求項１記載の発明によれば、小型簡略
な回路構成で個々の負荷による突入電流が同時に流れる
ことが防止され、電源投入時の突入電流を効果的に抑制
できる電源装置を提供できる。According to the first aspect of the present invention, there is provided a power supply device capable of preventing a rush current due to individual loads from flowing simultaneously with a small and simple circuit configuration and effectively suppressing the rush current when the power is turned on. Can be provided.
【００３５】請求項２記載の発明によれば、電磁開閉器
を用いた簡略な回路構成で個々の負荷による突入電流が
同時に流れることが防止され、電源投入時の突入電流を
効果的に抑制できる電源装置を提供できる。According to the second aspect of the present invention, the inrush current due to the individual loads is prevented from flowing simultaneously with a simple circuit configuration using the electromagnetic switch, and the inrush current when the power is turned on can be effectively suppressed. A power supply can be provided.
【図１】本発明の実施の形態１の電源装置の回路図であ
る。FIG. 1 is a circuit diagram of a power supply device according to a first embodiment of the present invention.
【図２】本発明の実施の形態１の電源装置の合成負荷電
流の波形図である。FIG. 2 is a waveform diagram of a combined load current of the power supply device according to the first embodiment of the present invention.
【図３】本発明の実施の形態１の電源装置の変形例の回
路図である。FIG. 3 is a circuit diagram of a modified example of the power supply device according to the first embodiment of the present invention.
【図４】本発明の実施の形態２の電源装置の回路図であ
る。FIG. 4 is a circuit diagram of a power supply device according to Embodiment 2 of the present invention.
【図５】本発明の実施の形態２の電源装置の合成負荷電
流の波形図である。FIG. 5 is a waveform diagram of a combined load current of the power supply device according to the second embodiment of the present invention.
【図６】本発明の実施の形態２の電源装置の変形例の回
路図である。FIG. 6 is a circuit diagram of a modification of the power supply device according to the second embodiment of the present invention.
【図７】従来の突入電流抑制回路を備えた電源装置の回
路図である。FIG. 7 is a circuit diagram of a power supply device including a conventional inrush current suppression circuit.
【図８】従来の突入電流抑制回路を備えた電源装置の合
成負荷電流の波形図である。FIG. 8 is a waveform diagram of a combined load current of a power supply device having a conventional inrush current suppression circuit.
１ 第１のオン／オフ回路 ２ 第２のオン／オフ回路 ３ 第３のオン／オフ回路 ９ オン／オフ制御回路 １０ 商用電源 １１ 第１の電磁開閉器 １２ 第２の電磁開閉器 １３ 第３の電磁開閉器 １６ 第１の励磁電流供給回路 １７ 第２の励磁電流供給回路 ２０ オン／オフ制御回路 ２１ 開閉端子 ２２ 励磁巻線 Ｔ 商用トランス DESCRIPTION OF SYMBOLS 1 1st ON / OFF circuit 2 2nd ON / OFF circuit 3 3rd ON / OFF circuit 9 ON / OFF control circuit 10 Commercial power supply 11 1st electromagnetic switch 12 2nd electromagnetic switch 13 3rd Electromagnetic switching device 16 first excitation current supply circuit 17 second excitation current supply circuit 20 ON / OFF control circuit 21 switching terminal 22 excitation winding T commercial transformer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｈ０２Ｍ 5/12 Ｈ０２Ｍ 5/12 Ｂ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI H02M 5/12 H02M 5/12 B
Claims (2)
備え、各出力系統に各々負荷が接続される電源装置にお
いて、 前記複数の出力系統に各々接続した各々の出力系統をオ
ン／オフするオン／オフ回路と、 各出力系統のオン／オフ回路を、非同期でオン駆動する
オン／オフ制御回路と、 を有することを特徴とする電源装置。1. A power supply device comprising a commercial transformer having a plurality of output systems and a load connected to each output system, wherein an on / off switch for turning on / off each output system connected to each of the plurality of output systems. A power supply device, comprising: an on / off circuit; and an on / off control circuit that asynchronously drives on / off circuits of each output system.
え、各出力系統に各々負荷が接続される電源装置におい
て、 初段から最終段に亘る各出力系統に各々接続した励磁電
流の有無により各出力系統をオン／オフする電磁開閉器
と、 前記商用トランスへの商用電源投入時に、初段の電磁開
閉器に励磁電流を供給して初段の出力系統をオンさせる
オン／オフ制御回路と、 初段から最終段の一つ前段の各出力系統と、二段目から
最終段までの各電磁開閉器との間に各々接続され、前記
オン／オフ制御回路による初段の出力系統のオン動作に
伴って、初段の出力系統から最終段の出力系統へ向かう
順序で二段目以降の電磁開閉器に各々前段側から励磁電
流を供給して各電磁開閉器を順次オン駆動する励磁電流
供給回路群と、 を有することを特徴とする電源装置。2. A power supply apparatus comprising a commercial transformer having a plurality of output systems and a load connected to each output system, wherein each output is determined by the presence or absence of an exciting current connected to each output system from a first stage to a last stage. An electromagnetic switch for turning on / off the system, an on / off control circuit for supplying an exciting current to the first-stage electromagnetic switch to turn on the first-stage output system when the commercial power to the commercial transformer is turned on, The first stage is connected between each output system of the previous stage and each of the electromagnetic switches from the second stage to the last stage, and is connected to the first stage output system by the on / off control circuit. An excitation current supply circuit group that supplies an excitation current from the previous stage to the second and subsequent electromagnetic switches in the order from the output system to the final output system, and sequentially turns on each electromagnetic switch. It is characterized by That power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9064655A JPH10260739A (en) | 1997-03-18 | 1997-03-18 | Power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9064655A JPH10260739A (en) | 1997-03-18 | 1997-03-18 | Power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10260739A true JPH10260739A (en) | 1998-09-29 |
Family
ID=13264470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9064655A Pending JPH10260739A (en) | 1997-03-18 | 1997-03-18 | Power unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10260739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018003029A1 (en) * | 2016-06-29 | 2018-01-04 | 三菱電機株式会社 | Alternating-current electric vehicle |
-
1997
- 1997-03-18 JP JP9064655A patent/JPH10260739A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018003029A1 (en) * | 2016-06-29 | 2018-01-04 | 三菱電機株式会社 | Alternating-current electric vehicle |
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