JPS63148181A - Variation system for source voltage - Google Patents
Variation system for source voltageInfo
- Publication number
- JPS63148181A JPS63148181A JP61295522A JP29552286A JPS63148181A JP S63148181 A JPS63148181 A JP S63148181A JP 61295522 A JP61295522 A JP 61295522A JP 29552286 A JP29552286 A JP 29552286A JP S63148181 A JPS63148181 A JP S63148181A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistors
- power supply
- resistor
- voltage dividing
- 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
- 238000000034 method Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
Abstract
Description
【発明の詳細な説明】
〔概要〕
電源電圧調整用の分圧抵抗器にそれぞれ並列に抵抗器を
接続するとともに該抵抗器の接続を開閉制御し、分圧比
を変えて電源電圧を変動する方式〔産業上の利用分野〕
本発明は電源電圧を変動させる変動方式の改良に関する
。[Detailed Description of the Invention] [Summary] A method in which resistors are connected in parallel to voltage dividing resistors for power supply voltage adjustment, and the connection of the resistors is controlled to open and close, thereby changing the voltage division ratio to vary the power supply voltage. [Industrial Application Field] The present invention relates to an improvement in a variation method for varying power supply voltage.
装置の環境試験、例えば低温試験等では動作電圧の上下
限で各部の試験が行われるが、電源電圧を温度槽外から
設定できないと試験に時間がかかる。In environmental tests of equipment, such as low-temperature tests, each part is tested at the upper and lower limits of the operating voltage, but testing takes time if the power supply voltage cannot be set from outside the temperature chamber.
このため、装置組み込み型の電源では電圧調整用の端子
を温度槽外に引出ししなければならず、また電圧調整に
手間がかかるという問題点があった。For this reason, in a device built-in power supply, the terminal for voltage adjustment must be drawn out of the temperature chamber, and there is a problem in that it takes time and effort to adjust the voltage.
特に近年では環境試験は自動化されつつあり、簡易な電
源電圧の変動方式が求められている。Particularly in recent years, environmental tests are becoming automated, and a simple method for varying the power supply voltage is required.
第３図は従来の変動方式説明図である。 FIG. 3 is an explanatory diagram of a conventional variation method.
図中、１は装置内に組み込まれた電源１例えばＤＣ−Ｄ
Ｃコンバータの電圧調整部であうで、ＱＯは電圧調整用
のトランジスタ、２は基準電圧■ｒｅｆと出力電圧Ｖｏ
を分圧した電圧Ｖｃとを比較する比較部、ＲＯ，Ｒ２は
固定抵抗器、ＶＲＩは可変抵抗器である。In the figure, 1 is a power supply 1 built into the device, e.g. DC-D
In the voltage adjustment section of the C converter, QO is a transistor for voltage adjustment, and 2 is a reference voltage ref and an output voltage Vo.
RO and R2 are fixed resistors, and VRI is a variable resistor.
なお、以下ではＲＯ＋ＶＲ１をＲ１とし、Ｒ１とＲ２と
を分圧抵抗器と称する。Note that, hereinafter, RO+VR1 will be referred to as R1, and R1 and R2 will be referred to as a voltage dividing resistor.
上記電圧調整部１において、出力電圧Ｖｏは分圧抵抗器
Ｒ１とＲ２との比（分注比）で決定され、可変抵抗器Ｖ
ＲＩによって所定電圧、例えば５■に設定されるが、規
定電圧５■の他、装置の動作を保証する電圧範囲の上下
限（５，５Ｖ、４．５Ｖ）で温度試験が行われる。In the voltage regulator 1, the output voltage Vo is determined by the ratio (dispensing ratio) between the voltage dividing resistors R1 and R2, and the output voltage Vo is determined by the ratio (dispensing ratio) between the voltage dividing resistors R1 and R2.
Although the voltage is set to a predetermined voltage, for example, 5■ by RI, a temperature test is performed at the upper and lower limits (5.5V, 4.5V) of the voltage range that guarantees the operation of the device, in addition to the specified voltage 5■.
このため、可変抵抗器ＶＲＡ、ＶＲＢを図示のごとくそ
れぞれ接続して温度槽外に引出し、電圧計を見ながらそ
れぞれ調整して変動している。For this reason, the variable resistors VRA and VRB are connected as shown in the figure and pulled out of the temperature chamber, and each is adjusted and varied while checking the voltmeter.
以上説明した環境試験のための従来の電圧変動方法では
、電圧設定に時間を要するとか、手間がかかるという問
題点があった。The conventional voltage variation method for environmental testing described above has the problem that setting the voltage takes time and effort.
本発明は、上記問題点を解決し電源電圧変動を自動化す
る簡易な電圧変動方式を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a simple voltage variation method that solves the above problems and automates power supply voltage variation.
上記目的のため、本発明の電源電圧の変動方式は、第１
図本発明の原理説明図に示すように、電源電圧を設定す
る２組の分圧抵抗器（Ｒ１，Ｒ２）にそれぞれ並列に接
続する２組の抵抗器（Ｒ３，Ｒ４）と、
２組の該抵抗器（Ｒ３，Ｒ４）の前記接続をそれぞれ開
閉する開閉手段（Ｑ１、Ｑ２ ）と、該開閉手段（Ｑ１
、Ｑ２ ”）をそれぞれ開閉制御する制御手段（１０）
と
を設けたものである。For the above purpose, the power supply voltage variation method of the present invention uses the first
As shown in the diagram explaining the principle of the present invention, two sets of resistors (R3, R4) are connected in parallel to two sets of voltage dividing resistors (R1, R2) that set the power supply voltage, and two sets of resistors (R3, R4) are connected in parallel to each other. switching means (Q1, Q2) for respectively opening and closing the connections of the resistors (R3, R4);
, Q2'') respectively.
It has been established that
開閉手段Ｑ１、Ｑ２をそれぞれ備えた抵抗器Ｒ３、Ｒ４
を電圧調整用の分圧抵抗器Ｒ１，Ｒ２に並列にそれぞれ
接続する。Resistors R3 and R4 each equipped with switching means Q1 and Q2
are connected in parallel to voltage-adjusting voltage dividing resistors R1 and R2, respectively.
この開閉手段Ｑ１、Ｑ２を、例えばプロセッサによって
オン／オフ制御することにより、分圧比が変わり、変動
した所定の電圧が得られる。By controlling the opening/closing means Q1, Q2 on/off, for example, by a processor, the voltage division ratio changes and a predetermined voltage that fluctuates can be obtained.
以上により、テストプログラム等に電圧設定手段を設け
ておけば、電源電圧変動に関する試験を自動的に行うこ
とができる。As described above, if a voltage setting means is provided in a test program or the like, a test regarding power supply voltage fluctuations can be automatically performed.
なお、出力電圧を設定する分圧抵抗器として、出力電圧
を分圧するもの、基準電圧を分圧するもの等があり、い
ずれの分圧抵抗器に対しても適用できる。Note that as voltage dividing resistors for setting the output voltage, there are those that divide the output voltage, those that divide the reference voltage, etc., and the present invention can be applied to any of the voltage dividing resistors.
本発明の実施例を第２図を参照しつつ説明する。 An embodiment of the present invention will be described with reference to FIG.
本実施例は出力電圧を分圧して電圧を変動する例を示す
。This embodiment shows an example in which the output voltage is divided to vary the voltage.
第２図は実施例の電圧変動部ブロック図であって、
Ｑ１、Ｑ２はスイッチングトランジスタ（開閉手段）、
Ｒ３，Ｒ４は抵抗器であって、Ｑ１、Ｑ２がオンのとき
、それぞれ抵抗器Ｒ１，Ｒ２に並列に接続されるもの、
３．４はそれぞれＱ１、Ｑ２をオンオフするドライバ、
５は、図示省略したプロセッサより出力されるオンオフ
指令をセントし、対応するドライバ３゜４を駆動するＩ
Ｏボート、
であり、その細筒３図と同一符号は同一対象物を表す。FIG. 2 is a block diagram of the voltage fluctuation section of the embodiment, in which Q1 and Q2 are switching transistors (switching means), R3 and R4 are resistors, and when Q1 and Q2 are on, the resistors R1 and R4 are turned on, respectively. Connected in parallel to R2 are drivers 3 and 4 that turn on and off Q1 and Q2, respectively; and 5 an I that receives on/off commands output from a processor (not shown) and drives the corresponding drivers 3 and 4.
O boat, and the same reference numerals as those in Figure 3 of the thin tube represent the same objects.
なお、制御手段１０は、ＩＯポート５および図示省略し
たプロセッサに対応する。Note that the control means 10 corresponds to the IO port 5 and a processor (not shown).
以上の構成において、抵抗器Ｒ３の抵抗値ｒ３は、Ｑｌ
がオン且つＱ２がオフのとき、出力電圧ＶＯが４．５Ｖ
に設定されるように選択され、抵抗器Ｒ４の抵抗値ｒ４
は、Ｑｌがオフ且つＱ２がオンのとき出力電圧■０が５
゜５■に設定されるように選択される。即ち、
Ｑ１オン Ｑ２オフ ４．５Ｖ
Ｑ１オフ Ｑ２オフ ５．０Ｖ
Ｑ１オフ Ｑ２オン ５．５Ｖ
である。In the above configuration, the resistance value r3 of the resistor R3 is Ql
is on and Q2 is off, the output voltage VO is 4.5V
and the resistance value r4 of resistor R4 is selected to be set to .
is, when Ql is off and Q2 is on, the output voltage ■0 is 5
It is selected to be set to ゜5■. That is, Q1 on Q2 off 4.5V Q1 off Q2 off 5.0V Q1 off Q2 on 5.5V.
上記Ｑ１、Ｑ２のオンオフ制御は、ＩＯボート５の対応
するビットにオンオフ指令（“１”または“０”）を図
示省略したプロセッサより書込むことにより制御される
。The on/off control of Q1 and Q2 is controlled by writing an on/off command (“1” or “0”) to the corresponding bit of the IO boat 5 from a processor (not shown).
このため、例えば温度試験を行うテストプログラムの初
期設定に電圧設定手段、即ちＩＯポート５への書込み手
段を設けておくと、自動的に電源電圧が設定され、規定
電圧、上下限電圧におけるテストを自動的に実施するこ
とができる。For this reason, for example, if a voltage setting means, that is, a writing means to the IO port 5 is provided in the initial settings of a test program that performs a temperature test, the power supply voltage will be automatically set, and the test at the specified voltage and upper and lower limit voltages will be performed. It can be performed automatically.
なお、通常動作では電源投入時にＩＯボート５がリセッ
トされてＱ１、Ｑ２はオフ状態であり、Ｒ１およびＲ２
によって５Ｖに設定されて動作する。Note that in normal operation, the IO boat 5 is reset when the power is turned on, Q1 and Q2 are in the off state, and R1 and R2 are in the off state.
It operates by setting it to 5V.
また、前述したように電圧設定用として基準電圧を分圧
する方法等があり、本実施例に限るものではない。Further, as described above, there are methods of dividing the reference voltage for voltage setting, and the method is not limited to this embodiment.
本発明は、制御指令によって自動的に電圧を変動する方
式を提供するものであるから、環境試験等における効果
は極めて多大である。Since the present invention provides a method for automatically varying the voltage according to control commands, the present invention is extremely effective in environmental tests and the like.
第１図は本発明の原理説明図、
第２図は実施例の電圧変動部ブロック図、第３図は従来
の変動方式説明図、
である。図中、
ＲＯ，Ｒ２は固定抵抗器で、Ｒ１，Ｒ２は分圧抵抗器、
Ｒ３，Ｒ４は抵抗器、
ＶＲＩ、ＶＲＡ、ＶＲＢは可変抵抗器、Ｑ１、Ｑ２はス
イッチングトランジスタ（開閉手段）、
１は電圧調整部、 ２は比較部、
３．４はドライバ、 ５は■０ポート、未発Ｈ目の
涼工里−茎〈ら任Ｈ「４
不１ 閥
爽屓に伊［の蔽厘’！−！ｆｆｅｉ’Ｐブ旨・ソ７図−
第２＠FIG. 1 is a diagram illustrating the principle of the present invention, FIG. 2 is a block diagram of a voltage variation section of an embodiment, and FIG. 3 is a diagram illustrating a conventional variation method. In the figure, RO and R2 are fixed resistors, R1 and R2 are voltage dividing resistors, R3 and R4 are resistors, VRI, VRA and VRB are variable resistors, Q1 and Q2 are switching transistors (switching means), 1 is the voltage adjustment section, 2 is the comparison section, 3.4 is the driver, 5 is ■0 port, !-!ffei'P buji・So7 figure-
2nd @
Claims (1)
備える電圧調整部（１）において、 ２組の該分圧抵抗器（Ｒ１、Ｒ２）にそれぞれ並列に接
続する２組の抵抗器（Ｒ３、Ｒ４）と、２組の該抵抗器
（Ｒ３、Ｒ４）の前記接続をそれぞれ開閉する開閉手段
（Ｑ１、Ｑ２）と、 該開閉手段（Ｑ１、Ｑ２）をそれぞれ開閉制御する制御
手段（１０）と を設け、２組の該抵抗器（Ｒ３、Ｒ４）をそれぞれ分圧
抵抗器（Ｒ１、Ｒ２）に接続制御して電源電圧を変動せ
しめることを特徴とする電源電圧の変動方式。[Claims] In a voltage adjustment unit (1) that includes two sets of voltage dividing resistors (R1, R2) for setting a power supply voltage, each of the two sets of voltage dividing resistors (R1, R2) has a two sets of resistors (R3, R4) to be connected; switching means (Q1, Q2) for respectively opening and closing the connection of the two sets of resistors (R3, R4); and the switching means (Q1, Q2). A control means (10) for respectively controlling opening and closing is provided, and the two sets of resistors (R3, R4) are connected and controlled to respective voltage dividing resistors (R1, R2) to vary the power supply voltage. Power supply voltage variation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61295522A JPS63148181A (en) | 1986-12-10 | 1986-12-10 | Variation system for source voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61295522A JPS63148181A (en) | 1986-12-10 | 1986-12-10 | Variation system for source voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63148181A true JPS63148181A (en) | 1988-06-21 |
Family
ID=17821709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61295522A Pending JPS63148181A (en) | 1986-12-10 | 1986-12-10 | Variation system for source voltage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116738A (en) * | 1987-10-30 | 1989-05-09 | Nec Corp | Power unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932021A (en) * | 1982-08-17 | 1984-02-21 | Toshiba Corp | Power supply output controller |
-
1986
- 1986-12-10 JP JP61295522A patent/JPS63148181A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932021A (en) * | 1982-08-17 | 1984-02-21 | Toshiba Corp | Power supply output controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116738A (en) * | 1987-10-30 | 1989-05-09 | Nec Corp | Power unit |
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