JPS5959026A - Power source circuit - Google Patents
Power source circuitInfo
- Publication number
- JPS5959026A JPS5959026A JP16875282A JP16875282A JPS5959026A JP S5959026 A JPS5959026 A JP S5959026A JP 16875282 A JP16875282 A JP 16875282A JP 16875282 A JP16875282 A JP 16875282A JP S5959026 A JPS5959026 A JP S5959026A
- Authority
- JP
- Japan
- Prior art keywords
- power
- storage battery
- voltage
- power supply
- charging
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は非常放送用設備等における電源回路に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a power supply circuit for emergency broadcast equipment and the like.
従来例の構成とその問題点 第１図は従来のこの種の電源回路を示している。Conventional configuration and its problems FIG. 1 shows a conventional power supply circuit of this type.
１は通常時、非常時用電源回路および充電回路、２は商
用交流電圧が印加される電源入力端子、３は電源トラン
ス、４，６はそれぞれ整流回路、６は電力増幅器への商
用交流電圧の送出駆動リレー、６′はリレー６の接点、
７は充電用蓄電池の容量に応じて充電電流を決める抵抗
器、８は抵抗器子の選択切替スイッチ、９は停電時に蓄
電池１２から直流電圧を送出するための駆動リレー、Ｓ
′はリレー９の接点、１０は電圧計、１１は充電中表示
灯、１２は蓄電池、１３は電力増幅器、１４は商用交流
電圧の電力増幅器側の電源端子、１６は電源トランス、
１７は整流回路、１８は出カドランス、１９は電源表示
灯子・・為３゜
次に上記従来例の動作について説明する。1 is a power supply circuit and a charging circuit for normal and emergency use, 2 is a power input terminal to which commercial AC voltage is applied, 3 is a power transformer, 4 and 6 are each a rectifier circuit, and 6 is a supply of commercial AC voltage to a power amplifier. Sending drive relay, 6' is the contact of relay 6,
7 is a resistor that determines the charging current according to the capacity of the charging storage battery, 8 is a resistor selection switch, 9 is a drive relay for sending out DC voltage from the storage battery 12 in the event of a power outage, S
' is a contact of relay 9, 10 is a voltmeter, 11 is a charging indicator, 12 is a storage battery, 13 is a power amplifier, 14 is a power supply terminal on the power amplifier side of commercial AC voltage, 16 is a power transformer,
Reference numeral 17 is a rectifier circuit, 18 is an output transformer, and 19 is a power indicator lamp...3.Next, the operation of the above conventional example will be explained.
第１図において、電源端子２に加わった商用交流電圧は
リレー６の接点６′を経由して、電力増幅器１３の商用
交流電圧の電源端子１４に加わり、電源トランス１６を
経て整流回路１７で所定の直流電圧に整流され、電力増
幅器１３へ加えられる。In FIG. 1, the commercial AC voltage applied to the power supply terminal 2 passes through the contact 6' of the relay 6, is applied to the commercial AC voltage power supply terminal 14 of the power amplifier 13, passes through the power transformer 16, and then is supplied to the rectifier circuit 17 to a predetermined level. It is rectified into a DC voltage and applied to the power amplifier 13.
まだ、電源端子２に加わった商用交流電圧は整流回路５
で整流され選択切替スイッチ８によって選択された抵抗
器７を通して、蓄電池１２に供給される。The commercial AC voltage applied to the power supply terminal 2 is still connected to the rectifier circuit 5.
and is supplied to the storage battery 12 through the resistor 7 selected by the selection changeover switch 8.
まだ、商用交流電圧供給が停電により止った場合、リレ
ー９が作動し、その接点９′が閉じ、蓄電池１２からの
直流電圧が直流電圧の電源大人端子１５を通して電力増
幅器１３へ供給される。If the commercial AC voltage supply is still interrupted due to a power outage, the relay 9 is activated, its contact 9' is closed, and the DC voltage from the storage battery 12 is supplied to the power amplifier 13 through the DC voltage power supply adult terminal 15.
しかしながら上記の構成では電力増幅器１３への商用交
流電圧を電源回路１の一次側から供給しているため、電
源トランスが別別に必要であった。However, in the above configuration, since the commercial AC voltage to the power amplifier 13 is supplied from the primary side of the power supply circuit 1, a separate power transformer is required.
さらに充電電流を決める場合、例えば３０Ｗの増幅器を
使用し、３０Ｗ用の蓄電池を使用する場合には抵抗選択
切替スイッチ８を３ＯＷ用の抵抗器７にあらかじめセッ
トしなければならなかった。Furthermore, when determining the charging current, for example, if a 30W amplifier is used and a 30W storage battery is used, the resistance selection switch 8 must be set in advance to the 3OW resistor 7.
したがって、もしこの抵抗選択切替えを行なわなかった
場合には適正な充電ができないばかりか時には過剰電流
を供給したことにより蓄電池を破壊する恐れがあった。Therefore, if this resistance selection switching is not performed, not only will proper charging not be possible, but there is also a risk that the storage battery may be destroyed due to excessive current being supplied.
発明の目的
本発明は上記従来の欠点を除去し、構成を簡単化しよう
とするものである。OBJECTS OF THE INVENTION The present invention aims to eliminate the above-mentioned conventional drawbacks and simplify the structure.
発明の構成
本発明は蓄電池充電用の電源トランスと電力増幅器用の
電源トランスを共用化することにより上記の目的を達成
せんとするものである。Structure of the Invention The present invention aims to achieve the above object by sharing a power transformer for charging a storage battery and a power transformer for a power amplifier.
実施例の説明 以下本発明の一実施例を第２図を用いて説明する。Description of examples An embodiment of the present invention will be described below with reference to FIG.
第２図において、２ｏは非常時供給用電源回路及び充電
回路、２１は通常時、蓄電池へ充電電圧が印加される電
源入力端子、２２は停電時に蓄電池からの直流電圧を送
出するリレー、２１′はその接点、２３は電圧計、２４
は充電中表示灯、２６は蓄電池、２６は電力増幅器、２
７は商用交流電圧が印加される電源入力端子、２８は電
源トランス、２９，３０，３２はそれぞれ整流回路、３
１は充電電流を決める抵抗器、３３は停電時蓄電池２５
からの直流電圧が印加される電源入力端子である。In FIG. 2, 2o is an emergency supply power supply circuit and a charging circuit, 21 is a power input terminal to which charging voltage is applied to the storage battery under normal conditions, 22 is a relay that sends out DC voltage from the storage battery in the event of a power outage, and 21' is its contact, 23 is the voltmeter, 24
is a charging indicator light, 26 is a storage battery, 26 is a power amplifier, 2
7 is a power input terminal to which a commercial AC voltage is applied; 28 is a power transformer; 29, 30, and 32 are rectifier circuits;
1 is a resistor that determines the charging current, 33 is a power outage storage battery 25
This is a power input terminal to which DC voltage is applied.
以下この回路の動作を説明する。The operation of this circuit will be explained below.
第２図において、電源入力端子２７に印加された商用交
流電圧は電源トランス２８によって分圧され整流回路２
９により整流され、抵抗器３１によって充電電流が決め
られ、非常時供給用電源回路および充電回路２０側の整
流電圧電源入力端子２１に印加され、蓄電池２６に供給
される。In FIG. 2, the commercial AC voltage applied to the power supply input terminal 27 is divided by the power transformer 28 and the rectifier circuit 2
9 , a charging current is determined by a resistor 31 , and is applied to the rectified voltage power input terminal 21 on the side of the emergency supply power supply circuit and the charging circuit 20 , and is supplied to the storage battery 26 .
才だ、商用交流電圧が停電した場合、リレー２２が作動
し、その接点２２′が閉じることにより、蓄電池２６か
らの直流電圧が電力増幅器２６の電源入力端子３３を経
由して電力増幅器２６へ供給される。In the event of a power outage in the commercial AC voltage, the relay 22 is activated and its contact 22' closes, thereby supplying the DC voltage from the storage battery 26 to the power amplifier 26 via the power input terminal 33 of the power amplifier 26. be done.
」−記のように、電源トランス２８の巻線に必要に応じ
て２巻線、あるいはそれ以上の巻線を設け、これを電力
増幅器２６側に配置することによって、非常時用電源回
路および充電回路２０側の電源トランスを省くことがで
き、かつ電力増幅器２６ごとに抵抗選択切替スイッチに
より設定していた充電電流用の抵抗器を電力増幅器２６
側に固定抵抗器３１として設けることができる。'', by providing two or more windings as necessary to the windings of the power transformer 28 and arranging them on the power amplifier 26 side, the emergency power supply circuit and charging The power transformer on the circuit 20 side can be omitted, and the charging current resistor that was set by the resistance selection switch for each power amplifier 26 can be replaced with the power amplifier 26.
It can be provided as a fixed resistor 31 on the side.
発明の効果
以上のように本発明によれば電源トランスの一本化によ
り、構成が簡単になり省スペース、コストダウンができ
る。Effects of the Invention As described above, according to the present invention, by unifying the power transformer, the configuration can be simplified, and space and cost can be reduced.
まだトランスによる磁気誘導等の悪影響を減らすことが
できる。It is still possible to reduce the negative effects of magnetic induction caused by the transformer.
さらに電力増幅器を接続するだけで充電電流が決められ
るので従来のような抵抗選択切替スイッチによる抵抗選
択の手間が省け、さらに抵抗値設定ミスによる障害を防
ぐことができる。Furthermore, since the charging current can be determined simply by connecting a power amplifier, it is possible to eliminate the hassle of selecting a resistor using a conventional resistance selection switch, and furthermore, it is possible to prevent failures due to mistakes in setting the resistance value.
また非常放送用設備としての機能を変えることなく構成
部品点数の削減を行うことによるコストダウンが可能で
ある。Furthermore, costs can be reduced by reducing the number of component parts without changing the function of the emergency broadcast equipment.
第１図は従来の電源回路の結線図、第２図は本発明の一
実施例における電源回路の結線図である。
２０・・・・・・電源回路及び充電回路、２１・・・
充電電圧電源入力端子、２２・・・・・・リレー、２２
′・・・・リレー接点、２３・・・・電圧計、２４・・
・・・・充電中表示灯、２５・・・・・・蓄電池、２６
・・・・・電力増幅器、２７・・・・・・商用交流電圧
電源入力端子、２８ ・・・電源トランス、２９・・・
・・整流回路、３Ｑ・・・・・整流回路、３２・・・・
・整流回路、３３・・・・・・蓄電池電源入力端子。FIG. 1 is a wiring diagram of a conventional power supply circuit, and FIG. 2 is a wiring diagram of a power supply circuit according to an embodiment of the present invention. 20...Power supply circuit and charging circuit, 21...
Charging voltage power supply input terminal, 22...Relay, 22
'... Relay contact, 23... Voltmeter, 24...
...Charging indicator light, 25...Storage battery, 26
... Power amplifier, 27 ... Commercial AC voltage power supply input terminal, 28 ... Power transformer, 29 ...
... Rectifier circuit, 3Q... Rectifier circuit, 32...
- Rectifier circuit, 33...Storage battery power input terminal.
Claims (2)
池を備え、上記電力増幅器用電源トランスに上記蓄電池
を充電するだめの電力をとり出すだめの別巻線を設けて
なる電源回路。(1) A power supply circuit comprising a storage battery that operates a power amplifier with its output during a power outage, and a power transformer for the power amplifier provided with a separate winding for extracting power for charging the storage battery.
抵抗器を別巻線に接続してなる特許請求の範囲第１項記
載の電源回路。(2) The power supply circuit according to claim 1, wherein a resistor for supplying a charging current according to the capacity of the storage battery is connected to a separate winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16875282A JPS5959026A (en) | 1982-09-27 | 1982-09-27 | Power source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16875282A JPS5959026A (en) | 1982-09-27 | 1982-09-27 | Power source circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5959026A true JPS5959026A (en) | 1984-04-04 |
Family
ID=15873768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16875282A Pending JPS5959026A (en) | 1982-09-27 | 1982-09-27 | Power source circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5959026A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51150042A (en) * | 1975-06-18 | 1976-12-23 | Seikosha Co Ltd | Electric source switch device |
-
1982
- 1982-09-27 JP JP16875282A patent/JPS5959026A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51150042A (en) * | 1975-06-18 | 1976-12-23 | Seikosha Co Ltd | Electric source switch device |
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