JPH0121365Y2 - - Google Patents

Info

Publication number
JPH0121365Y2
JPH0121365Y2 JP1979053475U JP5347579U JPH0121365Y2 JP H0121365 Y2 JPH0121365 Y2 JP H0121365Y2 JP 1979053475 U JP1979053475 U JP 1979053475U JP 5347579 U JP5347579 U JP 5347579U JP H0121365 Y2 JPH0121365 Y2 JP H0121365Y2
Authority
JP
Japan
Prior art keywords
side connector
circuit
load
voltage
reference 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.)
Expired
Application number
JP1979053475U
Other languages
Japanese (ja)
Other versions
JPS55155319U (en
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 filed Critical
Priority to JP1979053475U priority Critical patent/JPH0121365Y2/ja
Publication of JPS55155319U publication Critical patent/JPS55155319U/ja
Application granted granted Critical
Publication of JPH0121365Y2 publication Critical patent/JPH0121365Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)

Description

【考案の詳細な説明】 本考案は定電圧回路に係り、特にタングステン
ランプ等に使用する安定化電源回路の改良に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a constant voltage circuit, and particularly to improvements in a stabilized power supply circuit used in tungsten lamps and the like.

従来タングステンランプ等を定電圧回路にて点
灯する場合、タングステンランプ自体の非点灯時
のフイラメントの抵抗値は点灯時の約1/10位であ
り、点灯の瞬間大電流が流れる。したがつて定電
圧回路の主電流を直列トランジスタで制御する場
合、コレクタ電流の瞬時電流の大きなものを選択
し、大電流に耐える構成としなければならない。
このため電源投入後、ランプ供給電圧が数10ms
の間、ゆるやかに上昇するように構成し、初期の
大電流を抑えることによつて大電流トランジスタ
を不要としてきた。
When lighting a conventional tungsten lamp or the like using a constant voltage circuit, the resistance value of the filament of the tungsten lamp itself when it is not lit is about 1/10 of that when it is lit, and a large current flows at the moment it is lit. Therefore, when controlling the main current of a constant voltage circuit using a series transistor, a transistor with a large instantaneous collector current must be selected, and the structure must be able to withstand a large current.
For this reason, after the power is turned on, the lamp supply voltage is reduced for several tens of milliseconds.
During this period, large current transistors were eliminated by configuring the current to rise slowly and suppressing the initial large current.

一方ランプと定電圧電源部とがコネクタ等で分
離されている場合、誤まつて、電源を入れたまま
後でランプ付のコードを挿入されたような場合は
非点灯のランプに電圧を供給することになり、電
源回路には大電流が流れる欠点は防げない。
On the other hand, if the lamp and the constant voltage power supply are separated by a connector, etc., and if a cord with a lamp is accidentally inserted after the power is turned on, voltage will be supplied to the unlit lamp. Therefore, the drawback that large current flows through the power supply circuit cannot be prevented.

本考案の目的は、タングステンランプ等の非点
灯時の抵抗値が低い負荷に対し電源投入時の大電
流供給の制限、および電源投入後ランプ負荷のみ
を接続した場合の電源内の大電流の流れることを
制限しうる電源回路を提供することにある。
The purpose of this invention is to limit the large current supply when the power is turned on to a load with a low resistance value when not lit, such as a tungsten lamp, and to limit the large current that flows in the power supply when only the lamp load is connected after the power is turned on. The object of the present invention is to provide a power supply circuit that can limit the

このため本考案は、電圧供給源、この電圧供給
源と電源スイツチを介して接続された定電圧ダイ
オードとコンデンサの並列回路を有する基準電圧
回路、この基準電圧回路に接続された出力側コネ
クタ、この出力側コネクタに接続された負荷側コ
ネクタ、この負荷側コネクタに接続された負荷と
より構成したものである。
For this reason, the present invention includes a voltage supply source, a reference voltage circuit having a parallel circuit of a constant voltage diode and a capacitor connected to this voltage supply source via a power switch, an output side connector connected to this reference voltage circuit, and this voltage supply source. It consists of a load side connector connected to an output side connector, and a load connected to this load side connector.

以下、本考案の一実施例を図面に基づいて説明
する。
Hereinafter, one embodiment of the present invention will be described based on the drawings.

図において、非安定電源1が電源スイツチ2を
通して直列制御形定電圧回路により出力側コネク
タ5と、負荷側コネクタ6と接続することにより
負荷のタングステンランプ7に電圧が供給され
る。
In the figure, an unstable power source 1 is connected to an output side connector 5 and a load side connector 6 through a power switch 2 and a series controlled constant voltage circuit, thereby supplying voltage to a tungsten lamp 7 as a load.

定電圧回路は直列制御トランジスタ3により制
御され、制御回路は基準電圧を定電圧ダイオード
により得ている。
The constant voltage circuit is controlled by a series control transistor 3, and the control circuit obtains a reference voltage from a constant voltage diode.

本構成において負荷側コネクタ6が接続されて
いない場合は基準電圧部4は電圧零のため制御ト
ランジスタ3はオフとなつており、出力電圧も零
である。次に負荷側コネクタ6を接続すると、基
準電圧部が動作するまで、すなわち定電圧ダイオ
ードが定電圧領域に入るまではインピーダンスが
高く直列抵抗とダイオードに並列のコンデンサの
値できまる時定数で出力電圧が上昇する。
In this configuration, when the load side connector 6 is not connected, the voltage of the reference voltage section 4 is zero, so the control transistor 3 is off, and the output voltage is also zero. Next, when the load side connector 6 is connected, the impedance is high until the reference voltage section operates, that is, until the constant voltage diode enters the constant voltage region. rises.

これにより、制御トランジスタ3に瞬時大電流
が流れることを防いでいる。
This prevents an instantaneous large current from flowing through the control transistor 3.

本構成によれば、負荷側コネクタが接続された
ままで、電源スイツチ2の投入時と、電源スイツ
チオンのままあとから負荷側コネクタを接続した
ときの両方の場合における瞬時大電源を制限する
ことができ、トランジスタ3の許容コレクタ電流
の大きくないもので実現できるため安全な定電圧
回路を提供できる。
According to this configuration, it is possible to limit instantaneous large power both when the power switch 2 is turned on with the load side connector still connected and when the load side connector is connected later with the power switch on. , can be realized using a transistor 3 whose allowable collector current is not large, so that a safe constant voltage circuit can be provided.

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

図は本考案の一実施例説明図である。 1……非安定電源、2……電源スイツチ、3…
…制御トランジスタ、4……基準電圧部、5……
出力側コネクタ、6……負荷側コネクタ、7……
タングステンランプ。
The figure is an explanatory diagram of one embodiment of the present invention. 1... Unstable power supply, 2... Power switch, 3...
...Control transistor, 4...Reference voltage section, 5...
Output side connector, 6... Load side connector, 7...
tungsten lamp.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電圧供給源、この電圧供給源と電源スイツチを
介して接続された定電圧ダイオードとコンデンサ
の並列回路を有する基準電圧回路、この基準電圧
回路に接続された出力側コネクタ、この出力側コ
ネクタに接続された負荷側コネクタ、この負荷側
コネクタに接続された負荷とより構成したことを
特徴とする安定化電源回路。
A voltage supply source, a reference voltage circuit having a parallel circuit of a voltage regulator diode and a capacitor connected to this voltage supply source via a power switch, an output side connector connected to this reference voltage circuit, and a reference voltage circuit connected to this output side connector. A stabilized power supply circuit comprising: a load-side connector; and a load connected to the load-side connector.
JP1979053475U 1979-04-23 1979-04-23 Expired JPH0121365Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979053475U JPH0121365Y2 (en) 1979-04-23 1979-04-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979053475U JPH0121365Y2 (en) 1979-04-23 1979-04-23

Publications (2)

Publication Number Publication Date
JPS55155319U JPS55155319U (en) 1980-11-08
JPH0121365Y2 true JPH0121365Y2 (en) 1989-06-26

Family

ID=29288689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979053475U Expired JPH0121365Y2 (en) 1979-04-23 1979-04-23

Country Status (1)

Country Link
JP (1) JPH0121365Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5158050A (en) * 1974-11-16 1976-05-21 Sumitomo Electric Industries Hatsushinkino shuhasuhoshokairo

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5158050A (en) * 1974-11-16 1976-05-21 Sumitomo Electric Industries Hatsushinkino shuhasuhoshokairo

Also Published As

Publication number Publication date
JPS55155319U (en) 1980-11-08

Similar Documents

Publication Publication Date Title
JPH0373998B2 (en)
JPH0121365Y2 (en)
JPH019275Y2 (en)
JPS602679Y2 (en) power switching device
JPS5555624A (en) Power supply unit
KR890000913Y1 (en) Control circuit of discharge lamps
JPH02119394U (en)
JPH02119393U (en)
JPS6324640Y2 (en)
JPS58139699U (en) dimmer device
JPH079393Y2 (en) Light emitting diode lighting control circuit for electrical equipment
JPS608434Y2 (en) Light emitting diode lighting circuit
JPS5885799U (en) lighting control device
JPH0428320U (en)
JPH04119723A (en) Led lighting time shortening type receiver
JPH01318553A (en) Switching power circuit
JPS62221833A (en) Calling-on light device
JPS5826197U (en) Receiver for remote control dimming
JPH0364499U (en)
JPS5851600U (en) Power supply device for fluorescent lamp with dimming function
JPS6421961U (en)
JPS6184923U (en)
JPS62112416A (en) Load on-off control circuit
JPH01145094U (en)
JPS6275477U (en)