JPH0653853A - Pin diode driving circuit - Google Patents
Pin diode driving circuitInfo
- Publication number
- JPH0653853A JPH0653853A JP20461292A JP20461292A JPH0653853A JP H0653853 A JPH0653853 A JP H0653853A JP 20461292 A JP20461292 A JP 20461292A JP 20461292 A JP20461292 A JP 20461292A JP H0653853 A JPH0653853 A JP H0653853A
- Authority
- JP
- Japan
- Prior art keywords
- pin diode
- turned
- pin
- switches
- current
- 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.)
- Granted
Links
Landscapes
- Electronic Switches (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、フェーズドアレーアン
テナ，無線送受信装置等に使用されるＰＩＮダイオード
を用いた信号切換を行うＰＩＮダイオード駆動回路に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PIN diode drive circuit for switching signals using PIN diodes used in phased array antennas, radio transceivers and the like.
【０００２】[0002]
【従来の技術】従来のＰＩＮダイオード駆動回路は、図
３に示すように、複数のＰＩＮダイオード３０１Ａ〜３
０１Ｎと、これらを駆動する駆動電源入力部３０２Ａ〜
３０２Ｎがある場合に、それぞれが個別に抵抗，チョー
クコイルを介して電源に接続されていた。即ち、電源に
対して各ＰＩＮダイオードが並列負荷となるよう接続さ
れる。なお、ＲＦ信号は信号入力３０４Ａ〜ＮからＰＩ
Ｎダイオード３０１Ａ〜Ｎを介してアンテナ３０３Ａ〜
Ｎへ供給される。従って、ＰＩＮダイオード３０１Ａ〜
Ｎによる制御を用いたフェーズドアレーアンテナのよう
に、数１０個以上のＰＩＮダイオードを使用する場合に
は、大きな電流を消費する。たとえばＰＩＮダイオード
駆動電源部が１００個あり、それぞれが２０ｍＡの電流
を消費するとすれば、２Ａの電流が必要である。また電
圧の使用効率を考えると、ＰＩＮダイオードの駆動部が
１個のＰＩＮダイオードで構成されている場合に、その
電圧降下は約０．６Ｖ、従って電源電圧が５Ｖなら残り
の４．４Ｖ，電源電圧が１２Ｖなら残りの１１．４Ｖが
無駄に費されることになる。。この結果消費電力がそれ
ぞれ５Ｖ×２Ａ＝１０Ｗ、１２Ｖ×２Ｖ＝２４Ｗを必要
とする。2. Description of the Related Art A conventional PIN diode drive circuit, as shown in FIG. 3, includes a plurality of PIN diodes 301A to 301A-3.
01N and the drive power input section 302A for driving them.
When there was 302N, each was individually connected to the power supply via a resistor and a choke coil. That is, each PIN diode is connected to the power supply so as to be a parallel load. The RF signal is input from the signal inputs 304A to N to PI.
The antennas 303A through the N diodes 301A through N
Supplied to N. Therefore, the PIN diodes 301A to
When using several tens or more PIN diodes like a phased array antenna using control by N, a large current is consumed. For example, if there are 100 PIN diode drive power supplies and each consumes a current of 20 mA, a current of 2 A is required. Considering the efficiency of voltage usage, when the PIN diode driver is composed of one PIN diode, the voltage drop is about 0.6V, so if the power supply voltage is 5V, the remaining 4.4V, If the voltage is 12V, the remaining 11.4V is wasted. . As a result, the power consumption requires 5V × 2A = 10W and 12V × 2V = 24W, respectively.
【０００３】[0003]
【発明が解決しようとする課題】このように従来のＰＩ
Ｎダイオード駆動回路は、各ＰＩＮダイオードが電源に
対して並列に接続されているため、消費電流，消費電力
とも大きいという欠点があった。As described above, the conventional PI is used.
The N diode drive circuit has a drawback that both the current consumption and the power consumption are large because each PIN diode is connected in parallel to the power supply.
【０００４】[0004]
【課題を解決するための手段】本発明のＰＩＮダイオー
ド駆動回路は、互いにアノードとカソードを接続して並
列回路を形成する少なくとも２個のＰＩＮダイオード
と、このそれぞれのＰＩＮダイオードに流れる電流のオ
ンオフ制御を行う少なくとも２対のスイッチとで構成さ
れる複数のＰＩＮダイオード駆動部を１個の電源に対し
て直列に接続されていることを特徴とする。A PIN diode drive circuit according to the present invention includes at least two PIN diodes each having an anode and a cathode connected to each other to form a parallel circuit, and ON / OFF control of a current flowing through each PIN diode. It is characterized in that a plurality of PIN diode driving units each including at least two pairs of switches for performing the above are connected in series to one power source.
【０００５】[0005]
【実施例】次に本発明について図面を参照して説明す
る。図１は本発明の第１の実施例の回路図である。図１
の実施例は電源＋Ｖに対して抵抗１００を通してＰＩＮ
ダイオード駆動部１，２〜Ｎが直列接続されている。The present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram of a first embodiment of the present invention. Figure 1
In the embodiment of the present invention, the PIN is supplied to the power supply + V through the resistor 100.
The diode drive units 1, 2 to N are connected in series.
【０００６】図１の実施例はＰＩＮダイオードが双方向
に接続された場合で、例えばＰＩＮダイオード駆動部１
では流す電流の向きによってオンとなるＰＩＮダイオー
ド１０５Ａ，１０６Ａのいずれかが選択される。図１
で、抵抗１００は電流制限用である。各ダイオード駆動
部の中はそれぞれスイッチ１０１Ａ〜１０４Ａ，１０１
Ｂ〜１０４Ｂ，１０１Ｎ〜１０４ＮとＰＩＮダイオード
１０５Ａ，１０６Ａ〜１０５Ｎ，１０６Ｎが図のように
接続されている。ここではスイッチを適用した場合を説
明するが、スイッチの代りにフォトカプラ，フォトＭＯ
Ｓ ＦＥＴ，半導体スイッチの利用が可能である。ま
た、ＰＩＮダイオードによる信号切換回路では通常、高
周波信号阻止用のコイルやコンデンサを使用するが、本
例では図示せず、直流的な駆動部のみについて説明す
る。図１で、例えばスイッチ１０１Ａ，１０４Ａがオン
するとＰＩＮダイオード１０５Ａがオンする。またスイ
ッチ１０２Ａ，１０３Ａがオンすると、ＰＩＮダイオー
ド１０６Ａがオンする。このようにオンするスイッチの
組み合わせによってオンする側のＰＩＮダイオードを選
択することができ、この結果信号切換回路等を構成する
ことが可能となる。これはほかのＰＩＮダイオード駆動
部２，Ｎにおいても同様である。次に消費電流と消費電
力を計算する。スイッチに半導体スイッチを用いたとし
て、ここでの電圧降下を０．５Ｖと見込むとＰＩＮダイ
オード駆動部での電圧降下の合計は、０．５Ｖ＋０．６
Ｖ＋０．５Ｖ＝１．６Ｖとなり、電源電圧が５Ｖのとき
には２回路、電源電圧が１２Ｖのときには５回路程度直
列に接続することが可能と考えられる。この場合に、従
来例と同じくＰＩＮダイオード駆動部が１００個あった
とすれば、電源電圧が５Ｖのとき合計電流は２０ｍＡ×
（１００／２）＝１Ａ，合計消費電力は５Ｖ×１Ａ＝５
Ｗとなる。また電源電圧が１２Ｖのとき合計電流は２０
ｍＡ×（１００／５）＝０．４Ａ，合計消費電力は１２
Ｖ×０．４Ａ＝４．８Ｗとなり、電流，消費電力とも従
来例より少なくなる。The embodiment shown in FIG. 1 is a case where PIN diodes are connected in both directions.
Then, one of the PIN diodes 105A and 106A that is turned on is selected depending on the direction of the current to be supplied. Figure 1
Therefore, the resistor 100 is for current limiting. Switches 101A to 104A and 101 are provided in the respective diode driving units.
B-104B, 101N-104N and PIN diodes 105A, 106A-105N, 106N are connected as shown in the figure. Here, a case where a switch is applied will be described, but a photo coupler, a photo MO instead of the switch is used.
It is possible to use SFET and semiconductor switches. Further, a signal switching circuit using a PIN diode normally uses a coil and a capacitor for blocking high frequency signals, but this embodiment does not show them, but only a direct-current drive unit will be described. In FIG. 1, for example, when the switches 101A and 104A are turned on, the PIN diode 105A is turned on. When the switches 102A and 103A are turned on, the PIN diode 106A is turned on. Thus, the PIN diode on the side to be turned on can be selected by the combination of the switches to be turned on, and as a result, a signal switching circuit or the like can be configured. This also applies to the other PIN diode drive units 2 and N. Next, current consumption and power consumption are calculated. Assuming that a semiconductor switch is used as the switch, assuming that the voltage drop here is 0.5 V, the total voltage drop in the PIN diode drive unit is 0.5 V + 0.6.
Since V + 0.5V = 1.6V, it is considered possible to connect two circuits in series when the power supply voltage is 5V and about five circuits when the power supply voltage is 12V. In this case, assuming that there are 100 PIN diode driving units as in the conventional example, the total current is 20 mA × when the power supply voltage is 5V.
(100/2) = 1A, total power consumption is 5V × 1A = 5
W. The total current is 20 when the power supply voltage is 12V.
mA × (100/5) = 0.4 A, total power consumption is 12
Since V × 0.4A = 4.8 W, both current and power consumption are smaller than those of the conventional example.
【０００７】次に第２の実施例を図２により説明する。
第２の実施例では、ＰＩＮダイオードに流す電流が片方
向の場合で、定電流ダイオードであり、定電流ダイオー
ド２００とＰＩＮダイオード駆動部１１，１２〜１Ｎが
直列接続される。ＰＩＮダイオード駆動部Ｎを例にする
とスイッチ２０１ＡとＰＩＮダイオード２０２Ａが並列
接続され、スイッチ２０１Ａがオンすれば電流はスイッ
チ側を流れるので、ＰＩＮダイオード２０２Ａはオフと
なり、またスイッチ２０１ＡがオフすればＰＩＮダイオ
ード２０２Ａはオンとなる。このようにスイッチ２０１
ＡのオンオフによってＰＩＮダイオードのオンオフ制御
が可能である。全スイッチ２０１Ａ〜２０１Ｎがオンの
場合も定電流ダイオード２００により流れる電流は同じ
である。次に消費電流と消費電力を計算する。第２の実
施例では、ＰＩＮダイオード側でも０．６Ｖ程度なの
で、電源電圧が５Ｖのときには４回路、電源電圧が１２
Ｖのときには１５回路程度直列に接続することが可能で
ある。なお、電流は定電流ダイオード２００によって２
００Ａに抑えられるものとする。従来例と同じくＰＩＮ
ダイオード駆動部が１００個あったとすれば、電源電圧
が５Ｖのとき、合計電流は２０ｍＡ×（１００／４）＝
０．５Ａ，合計消費電力は５Ｖ×０．５Ａ＝２．５Ｗ、
また電流電圧が１２Ｖのとき合計電流は２０ｍＡ×（１
００／１５）＝０．１４Ａ、合計消費電力は１２Ｖ×
０．１４Ａ＝１．６８Ｗとなる。Next, a second embodiment will be described with reference to FIG.
In the second embodiment, when the current flowing through the PIN diode is unidirectional, it is a constant current diode, and the constant current diode 200 and the PIN diode drive units 11 and 12 to 1N are connected in series. Taking the PIN diode drive unit N as an example, the switch 201A and the PIN diode 202A are connected in parallel. When the switch 201A is turned on, the current flows through the switch side, so the PIN diode 202A is turned off, and when the switch 201A is turned off, the PIN diode is turned off. 202A is turned on. Switch 201
ON / OFF control of the PIN diode is possible by turning on / off A. The current flowing through the constant current diode 200 is the same when all the switches 201A to 201N are on. Next, current consumption and power consumption are calculated. In the second embodiment, since the PIN diode side is also about 0.6V, when the power supply voltage is 5V, there are 4 circuits and the power supply voltage is 12V.
When it is V, about 15 circuits can be connected in series. The current is 2 by the constant current diode 200.
It shall be suppressed to 00A. PIN as in the conventional example
Assuming that there are 100 diode drivers, the total current is 20 mA × (100/4) = when the power supply voltage is 5V.
0.5A, total power consumption is 5V x 0.5A = 2.5W,
When the current voltage is 12V, the total current is 20mA x (1
00/15) = 0.14A, total power consumption is 12V ×
0.14A = 1.68W.
【０００８】[0008]
【発明の効果】以上説明したように本発明は、ＰＩＮダ
イオード駆動部を直列に接続としているので、従来例に
比して消費電流と消費電力を削減できるという効果を有
する。As described above, the present invention has the effect that the current consumption and the power consumption can be reduced as compared with the conventional example because the PIN diode drive units are connected in series.
【図１】本発明の第１の実施例の回路図である。FIG. 1 is a circuit diagram of a first embodiment of the present invention.
【図２】本発明の第２の実施例の回路図である。FIG. 2 is a circuit diagram of a second embodiment of the present invention.
【図３】従来のダイオード駆動回路の回路図である。FIG. 3 is a circuit diagram of a conventional diode drive circuit.
１〜Ｎ，１１〜１１Ｎ ＰＩＮダイオード駆動部 １００ 抵抗 １０１Ａ〜１０４Ａ，１０１Ｎ〜１０４Ｎ，２０１Ａ〜
２０１Ｎ スイッチ １０５Ａ〜１０５Ｎ，１０６Ａ〜１０６Ｎ，２０２Ａ〜
２０２Ｎ ＰＩＮダイオード ２００ 定電流ダイオード1-N, 11-11N PIN diode drive part 100 Resistance 101A-104A, 101N-104N, 201A-
201N switch 105A-105N, 106A-106N, 202A-
202N PIN diode 200 Constant current diode
Claims (2)
列回路を形成する少なくとも２個のＰＩＮダイオード
と、このそれぞれのＰＩＮダイオードに流れる電流のオ
ンオフ制御を行う少なくとも２対のスイッチとで構成さ
れる複数のＰＩＮダイオード駆動部を１個の電源に対し
て直列に接続されていることを特徴とするＰＩＮダイオ
ード駆動回路。1. A plurality of a plurality of PIN diodes each having an anode and a cathode connected to each other to form a parallel circuit, and at least two pairs of switches for controlling ON / OFF of a current flowing through each PIN diode. The PIN diode drive circuit is characterized in that the PIN diode drive unit is connected in series to one power source.
ダイオードに並列接続したオンオフ制御を行うスイッチ
とで構成される複数のダイオード駆動部が１個の電源に
対して直列に接続されていることを特徴とするＰＩＮダ
イオード駆動回路。2. One PIN diode and this PIN diode
A PIN diode drive circuit, wherein a plurality of diode drive units each of which includes an ON / OFF control switch connected in parallel to a diode are connected in series to one power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20461292A JP2874466B2 (en) | 1992-07-31 | 1992-07-31 | PIN diode drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20461292A JP2874466B2 (en) | 1992-07-31 | 1992-07-31 | PIN diode drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0653853A true JPH0653853A (en) | 1994-02-25 |
| JP2874466B2 JP2874466B2 (en) | 1999-03-24 |
Family
ID=16493362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20461292A Expired - Fee Related JP2874466B2 (en) | 1992-07-31 | 1992-07-31 | PIN diode drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2874466B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6189398B1 (en) | 1998-02-27 | 2001-02-20 | Fuji Koko Co., Ltd. | Shift-lever devices |
| US9435854B2 (en) | 2012-07-06 | 2016-09-06 | Kabushiki Kaisha Nihon Micronics | Electrical contactor and contact method for the same |
| KR102042074B1 (en) * | 2019-05-14 | 2019-11-27 | 현형호 | Gas station price display equipped with Solar power supply |
-
1992
- 1992-07-31 JP JP20461292A patent/JP2874466B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6189398B1 (en) | 1998-02-27 | 2001-02-20 | Fuji Koko Co., Ltd. | Shift-lever devices |
| US9435854B2 (en) | 2012-07-06 | 2016-09-06 | Kabushiki Kaisha Nihon Micronics | Electrical contactor and contact method for the same |
| KR102042074B1 (en) * | 2019-05-14 | 2019-11-27 | 현형호 | Gas station price display equipped with Solar power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2874466B2 (en) | 1999-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE36179E (en) | Switching circuit for selecting an output signal from plural input signals | |
| US5883797A (en) | Parallel path power supply | |
| US6836417B2 (en) | Semiconductor integrated circuit with selectable power supply according to different operation modes | |
| US6734656B2 (en) | Buck regulator with monolithic N- channel upper FET and pilot current sensing | |
| US6515522B2 (en) | Drive circuit of capacitive load and integrated circuit for driving capacitive load | |
| US20080018174A1 (en) | Power control apparatus and method thereof | |
| CA2073397C (en) | Power supply switching circuit for a compact portable telephone set | |
| JP2001298849A (en) | Electric load drive apparatus | |
| JPH0653853A (en) | Pin diode driving circuit | |
| JP3130443B2 (en) | Switching regulator | |
| JPH08308217A (en) | Dc-dc converter | |
| JP2737452B2 (en) | Power system | |
| US6864651B1 (en) | Bi-directional motor control circuit | |
| US20020136037A1 (en) | Load driving system and method thereof | |
| US4598244A (en) | Switching regulator | |
| JP3191606B2 (en) | Binary output circuit | |
| JP3227048B2 (en) | Driver circuit for bidirectional connection transistor | |
| JPH0670459A (en) | Power supply changeover circuit | |
| EP3972126A1 (en) | Bidirectional switch for power control in a daisy chain | |
| US6593796B1 (en) | Method and apparatus for powering multiple AC loads using overlapping H-bridge circuits | |
| US5332894A (en) | Optical output control IC and optical input amplifier IC | |
| JP2909125B2 (en) | Switch circuit | |
| JPH05175433A (en) | Integrated circuit for constant current drive of inductive load | |
| JPS59111683A (en) | Deflection circuit for crt | |
| JP2003101073A (en) | Dual voltage power supply apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981215 |
|
| LAPS | Cancellation because of no payment of annual fees |