WO2004114508A1 - 交流スイッチ - Google Patents
交流スイッチ Download PDFInfo
- Publication number
- WO2004114508A1 WO2004114508A1 PCT/JP2004/007200 JP2004007200W WO2004114508A1 WO 2004114508 A1 WO2004114508 A1 WO 2004114508A1 JP 2004007200 W JP2004007200 W JP 2004007200W WO 2004114508 A1 WO2004114508 A1 WO 2004114508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- switch
- electrode
- diode
- potential
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
- H03K17/6874—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
Definitions
- the present invention relates to an AC switch that is turned on / off by a control signal and controls on / off of an input AC signal.
- FIG. 1 A conventional AC switch used for a converter or a converter is shown in Fig. 1, for example.
- An AC signal from an AC power supply 110 is applied to both ends of a first terminal 11 and a second terminal 12 to an AC switch 100 shown in FIG.
- the AC switch 100 includes a normally-off type MOS FE TQ4 (hereinafter abbreviated as FE TQ4) and an normally-off type, which are connected in reverse series at both ends of the first terminal 11 and the second terminal # 2.
- MO SFE TQ 5 (hereinafter abbreviated as FE TQ 5).
- the drain of FETQ4 is connected to the first terminal 11, the source of FETQ4 is connected to the source of FETQ5, and the drain of FETQ5 is connected to the second terminal 12.
- a gate signal composed of a pulse signal is applied from the gate signal section 13 to the gate of FETQ4 and the gate of FETQ5.
- AC switch 100 can change the frequency of the current flowing through AC switch # 00 according to the frequency of the gate signal. Further, according to the AC switch 100, by using a common source, it is possible to control ON / OFF of the FETQ4 and the FETQ5 with one gate signal.
- a triac may be used as an AC switch.
- it can be turned on by applying a positive voltage gate signal to the triac, it cannot be turned off by applying a zero voltage gate signal to the triac. That is, the triac cannot be turned off unless the current flowing through the triac approaches zero. Therefore, when a triac is used, the frequency of the current flowing through the triac cannot be changed according to the frequency of the gate signal, and the triac is turned on / off at a frequency equal to or higher than the frequency of the AC power supply 110. I could't control the talent.
- Japanese Patent Application Laid-Open No. 5-75110 discloses a technique related to the conventional AC switch. Disclosure of the invention
- the conventional AC switch shown in FIG. 1 is not composed of one element but composed of two elements, FETQ4 and FETQ5. Also, since FETQ4 and FETQ5 are connected in series, the value obtained by adding the on-resistance of the two elements becomes the overall on-resistance, and the loss increases.
- the present invention provides an AC switch that can reduce loss by controlling ON / OFF of an AC signal with one element, can be turned ON / OFF at a frequency higher than the power supply frequency, and can greatly reduce the size of an inverter or a comparator. It is in.
- the present invention has been made to solve the above problems, and a main aspect of the present invention is that the first terminal and the second terminal are turned on / off by an input control signal.
- An AC switch for controlling on / off of an AC signal input therebetween, wherein the first terminal is connected to the first main electrode, the second terminal is connected to the second main electrode, and the control signal is input.
- FIG. 1 is a circuit diagram of a conventional AC switch.
- FIG. 2 is a circuit diagram of the AC switch according to the first embodiment of the present invention.
- FIG. 3 is a circuit diagram of an AC switch according to the second embodiment of the present invention.
- FIG. 4 is a circuit diagram of an AC switch according to a third embodiment of the present invention.
- FIG. 5 is a circuit diagram of an AC switch according to a fourth embodiment of the present invention.
- FIG. 6 is a circuit diagram of an AC switch according to a fifth embodiment of the present invention.
- FIG. 7 is a circuit diagram of an AC switch according to a sixth embodiment of the present invention.
- the AC switch according to the first embodiment is characterized in that the on / off control of the AC signal by one element reduces the re-loss and enables the switch to be turned on even at a frequency higher than the power supply frequency.
- FIG. 2 is a circuit diagram of the AC switch according to the first embodiment of the present invention.
- a normal-marion FETQ 1 (hereinafter abbreviated as FETQ 1) is connected to both ends of the first terminal 11 and the second terminal 12, and the first main electrode 2 1, a second main electrode 22 and a gate G.
- the first main electrode 21 is connected to the first terminal 11, and the second main electrode 22 is connected to the second terminal 12.
- This normally-on type FETQ1 has a low on-resistance and a high breakdown voltage, and is made of, for example, a compound semiconductor such as SiC or GaN or a MESFET.
- the drain and source are formed symmetrically. Therefore, the first main electrode 21 or the second main electrode 22 connected to the higher potential terminal between the ⁇ terminal 11 and the second terminal 12 becomes the drain and the lower potential terminal The other connected main electrode becomes the source.
- a gate signal section 13 for generating a gate signal composed of a pulse signal or the like is connected to the gate G of the FETQ1.
- the cathode of the die D 1 is connected to the first main electrode 21 of the FET Q 1
- the cathode of the die D 2 is connected to the second main electrode 22 of the FET Q 1.
- the diode D1 anode and the diode D2 anode are connected to the other end of the gate signal section 13, and the connection point between the diode D1 anode and the diode D2 anode is connected to the FETQ1 anode.
- a gate signal is input to the gate G.
- the first The main electrode 21 serves as a drain
- the second main electrode 22 serves as a source.
- FETQ 1 is turned on
- the diode D 2 is turned on. Also, at this time, the diode D1 is turned off because it is in the reverse bias state.
- the first main electrode 21 of the FETQ 1 becomes the source and the second main electrode 22 becomes the drain.
- FETQ 1 is turned on, and the diode D 1 is turned on.
- the diode D2 is turned off because it is in a reverse bias state.
- the main electrode as the source is When a gate signal that sets the potential of the gate G lower than that of the gate is input, the FETQ 1 turns off.
- the FETQ 1 turns off.
- the AC switch according to the first embodiment when an AC signal is input between the first terminal 11 and the second terminal 12, the potential of the first terminal 11 becomes the second terminal. 12 The potential is higher or lower than the potential of 2, but the terminal with the lower potential is selected by the diodes D 1 and D 2, and the terminal between the selected lower terminal (source) and the gate G is selected.
- the ON / OFF control of the AC signal can be controlled with one element of FETQ1. Therefore, the loss can be reduced, the power can be turned on / off at a frequency higher than the power supply frequency, and the inverter and the converter can be significantly reduced in size.
- FIG. 3 is a circuit diagram of an AC switch according to a second embodiment of the present invention.
- the AC switch according to the second embodiment is provided with FETQ2 and Q3 in place of the diodes D1 and D2 of the AC switch according to the first embodiment, and malfunctions due to noise and leakage current.
- the feature is that it prevented.
- FE TQ2 and Q 3 are switches such as a normally-type MOS FET, and the drain of F ETQ 2 is connected to the first terminal 11 and the drain of FE TQ 3 is connected to the second terminal. Connected to terminal 12 '. The source of FETQ 2 and the source of FETQ 3 are connected to the other end of the gate signal section 13.
- the F gate (32 and ETQ 3) is turned on by inputting a positive voltage gate signal to the gate of the FET connected to the low potential terminal, and connected to the FET gate connected to the high potential terminal. It is turned off by inputting a negative voltage gate signal to the gate.
- the first main electrode 21 of the FETQ 1 becomes a drain and the second main electrode 22 becomes a source.
- a gate signal that sets the gate G higher or zero with respect to the potential of the second main electrode 22 as a source is input, and the gate is turned on by inputting a positive voltage gate signal to the gate of FETQ3. It is turned off by inputting a zero-voltage or negative-voltage gate signal to the gate of FETQ2.
- FETQ 1 turns on.
- the potential of the second terminal 12 is high and the potential of the first terminal 11 is low
- the first main electrode 21 of the FETQ1 becomes a source and the second main electrode 22 becomes a drain.
- a gate signal that sets the gate G higher or zero with respect to the potential of the first main electrode 21 as a source is input, and a positive voltage gate signal is input to the gate of the FETQ 2.
- FETQ 1 turns on. Furthermore, even when the potential of the first terminal 11 is high and the potential of the second terminal 12 is low, and when the potential of the second terminal 12 is high and the potential of the first terminal 11 is low, the main electrode as the source is When a gate signal that sets the potential of the gate G lower than that of the gate is input, the FETQ1 is turned off.
- the same effect as that of the AC switch according to the first embodiment can be obtained, and the FETs Q2 and Q3 can be stably turned on. Malfunction due to noise or leakage current can be prevented.
- FIG. 4 is a circuit diagram of an AC switch according to a third embodiment of the present invention.
- the AC switch according to the third embodiment is characterized in that a current flows from a terminal having a high potential to a diode via a resistor to prevent malfunction due to noise or leakage current.
- FIG. 4 the same parts as those shown in FIG. 2 are denoted by the same reference numerals, and the description of the same parts will be omitted.
- the anode of the diode D 3 is connected to the first terminal 11, and the cathode of the diode D 3 is connected to the anode of the diode D 1 and the diode D 1 via the resistor R 1.
- diode D4 connected to the second terminal 12 and the power source of diode D4 is connected to the diode via resistor R1.
- Die codes D1 to D4 are configured as a bridge.
- the operation of the AC switch according to the third embodiment configured as described above will be described.
- the first main electrode 21 of the FETQ 1 becomes a drain and the second main electrode 22 becomes a source.
- a current flows through the first terminal 11 ⁇ the diode D 3 ⁇ the resistor R 1 ⁇ the diode D 2 ⁇ the second terminal 12.
- the diode D2 turns on and the diode D1 turns off.
- the same effect as that of the AC switch according to the first embodiment can be obtained, and the die heads D 1 and D 2 can be stabilized. Because it can be turned on, malfunction due to noise and leakage current can be prevented.
- FIG. 5 is a circuit diagram of an AC switch according to a fourth embodiment of the present invention.
- the AC switch according to the fourth embodiment is characterized in that malfunction due to noise or leakage current is prevented.
- a resistor R1 is connected in parallel with the diode D1
- a resistor R2 is connected in parallel with the diode D2.
- the same effect as that of the AC switch according to the first embodiment can be obtained, and die switches D ⁇ and D 2 can be stabilized. Because it can be turned on, malfunction due to noise and leakage current can be prevented.
- FIG. 6 is a circuit diagram of an AC switch according to a fifth embodiment of the present invention.
- the AC switch according to the fifth embodiment is different from the AC switch according to the third embodiment shown in FIG. 4 in that a gate signal section 13 and a gate G of the FETQ 1 are further provided.
- DC power supply E is provided.
- the positive terminal of the DC power source E is connected to the gate G of the FETQ 1, and the negative terminal of the DC power source E is connected to one end of the gate signal section 13.
- the DC voltage of the DC power supply E is always applied to the gate G of the FET Q1 as a bias voltage, so that the gate voltage shortage does not occur and the FET Q1 does not malfunction.
- FIG. 7 is a circuit diagram of an AC switch according to a sixth embodiment of the present invention.
- the AC switch according to the sixth embodiment is different from the AC switch according to the fourth embodiment shown in FIG. 5 in that a direct current is applied between the gate signal section 13 and the gate G of the FET GM.
- Power supply E is provided.
- the positive terminal of the DC power source E is connected to the gate G of the FETQ 1, and the negative terminal of the DC power source E is connected to one end of the gate signal section 13.
- the DC voltage of the DC power supply E is always applied to the gate G of the FET Q1 as a bias voltage, so that the gate voltage shortage does not occur and the FET Q1 does not malfunction.
- the resistor R1 is used to pass a current.
- a constant current element ⁇ a constant current circuit is used. In such a case, a forward current can be stably passed from a low voltage to a high voltage.
- the present invention when an AC signal is input between the first terminal and the second terminal, when the potential of the first terminal is high and the potential of the second terminal is low, the potential between the second terminal and the control electrode is reduced.
- the control signal is input to the switch and the semiconductor switch is turned on, and the potential of the second terminal is high and the potential of the first terminal is low, the control signal is input between the first terminal and the control electrode.
- the semiconductor switch turns on.
- the semiconductor switch is turned off. For this reason, an AC switch that can reduce the loss by controlling ON / OFF of the AC signal with one element, can be turned ON / OFF at a frequency higher than the power supply frequency, and can significantly reduce the size of the inverter / converter can be provided. .
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
- Semiconductor Integrated Circuits (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005507191A JP4123274B2 (ja) | 2003-06-23 | 2004-05-20 | 交流スイッチ |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-178428 | 2003-06-23 | ||
| JP2003178428 | 2003-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004114508A1 true WO2004114508A1 (ja) | 2004-12-29 |
Family
ID=33534988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/007200 Ceased WO2004114508A1 (ja) | 2003-06-23 | 2004-05-20 | 交流スイッチ |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4123274B2 (ja) |
| WO (1) | WO2004114508A1 (ja) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124667A (ja) * | 2007-01-25 | 2009-06-04 | Panasonic Corp | 双方向スイッチ及びその駆動方法 |
| JP2009152479A (ja) * | 2007-12-21 | 2009-07-09 | Sanken Electric Co Ltd | 双方向スイッチ |
| JP2009159222A (ja) * | 2007-12-26 | 2009-07-16 | Sanken Electric Co Ltd | スイッチ装置 |
| JP2010166301A (ja) * | 2009-01-15 | 2010-07-29 | Daikin Ind Ltd | スイッチ回路 |
| JP2011139290A (ja) * | 2009-12-28 | 2011-07-14 | Sanken Electric Co Ltd | 双方向スイッチ |
| JP2013009216A (ja) * | 2011-06-27 | 2013-01-10 | Sanken Electric Co Ltd | ゲートドライブ回路 |
| JP5183814B1 (ja) * | 2012-06-28 | 2013-04-17 | 株式会社アドバンテスト | スイッチ装置および試験装置 |
| JP2016025378A (ja) * | 2014-07-16 | 2016-02-08 | 株式会社アドバンテスト | 半導体スイッチおよびそれを用いた試験装置 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746858A (ja) * | 1993-07-30 | 1995-02-14 | Toshiba Lighting & Technol Corp | スイッチング電源装置 |
| JPH07336208A (ja) * | 1994-06-08 | 1995-12-22 | Philips Electron Nv | 論理回路装置 |
| US5610807A (en) * | 1994-10-14 | 1997-03-11 | Matsushita Electric Works, Ltd. | Power converting system with a plurality of charging capacitors |
| US5635826A (en) * | 1995-07-18 | 1997-06-03 | Chiyoda Corporation | Input waveform follow-up AC power source system |
| JPH10261945A (ja) * | 1997-03-18 | 1998-09-29 | N T T Data Tsushin Kk | 半導体スイッチ |
| JP2000269354A (ja) * | 1999-03-19 | 2000-09-29 | Toshiba Corp | 交流用スイッチ素子及び交流回路 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3327011B2 (ja) * | 1994-11-25 | 2002-09-24 | 松下電工株式会社 | 電力変換装置 |
-
2004
- 2004-05-20 JP JP2005507191A patent/JP4123274B2/ja not_active Expired - Fee Related
- 2004-05-20 WO PCT/JP2004/007200 patent/WO2004114508A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746858A (ja) * | 1993-07-30 | 1995-02-14 | Toshiba Lighting & Technol Corp | スイッチング電源装置 |
| JPH07336208A (ja) * | 1994-06-08 | 1995-12-22 | Philips Electron Nv | 論理回路装置 |
| US5610807A (en) * | 1994-10-14 | 1997-03-11 | Matsushita Electric Works, Ltd. | Power converting system with a plurality of charging capacitors |
| US5635826A (en) * | 1995-07-18 | 1997-06-03 | Chiyoda Corporation | Input waveform follow-up AC power source system |
| JPH10261945A (ja) * | 1997-03-18 | 1998-09-29 | N T T Data Tsushin Kk | 半導体スイッチ |
| JP2000269354A (ja) * | 1999-03-19 | 2000-09-29 | Toshiba Corp | 交流用スイッチ素子及び交流回路 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124667A (ja) * | 2007-01-25 | 2009-06-04 | Panasonic Corp | 双方向スイッチ及びその駆動方法 |
| JP2009152479A (ja) * | 2007-12-21 | 2009-07-09 | Sanken Electric Co Ltd | 双方向スイッチ |
| US7982240B2 (en) | 2007-12-21 | 2011-07-19 | Sanken Electric Co., Ltd. | Bidirectional electronic switch |
| JP2009159222A (ja) * | 2007-12-26 | 2009-07-16 | Sanken Electric Co Ltd | スイッチ装置 |
| US7852137B2 (en) | 2007-12-26 | 2010-12-14 | Sanken Electric Co., Ltd. | Normally-off electronic switching device for on-off control of electric circuit |
| JP2010166301A (ja) * | 2009-01-15 | 2010-07-29 | Daikin Ind Ltd | スイッチ回路 |
| JP2011139290A (ja) * | 2009-12-28 | 2011-07-14 | Sanken Electric Co Ltd | 双方向スイッチ |
| JP2013009216A (ja) * | 2011-06-27 | 2013-01-10 | Sanken Electric Co Ltd | ゲートドライブ回路 |
| JP5183814B1 (ja) * | 2012-06-28 | 2013-04-17 | 株式会社アドバンテスト | スイッチ装置および試験装置 |
| JP2016025378A (ja) * | 2014-07-16 | 2016-02-08 | 株式会社アドバンテスト | 半導体スイッチおよびそれを用いた試験装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4123274B2 (ja) | 2008-07-23 |
| JPWO2004114508A1 (ja) | 2006-07-27 |
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