CN102664550A - Direct-drive bridge inverter experimental circuit - Google Patents
Direct-drive bridge inverter experimental circuit Download PDFInfo
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- CN102664550A CN102664550A CN2012101207363A CN201210120736A CN102664550A CN 102664550 A CN102664550 A CN 102664550A CN 2012101207363 A CN2012101207363 A CN 2012101207363A CN 201210120736 A CN201210120736 A CN 201210120736A CN 102664550 A CN102664550 A CN 102664550A
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Abstract
The invention discloses a direct-drive bridge inverter experimental circuit, and belongs to the field of testing circuits. The direct-current bridge experimental circuit aims to solve problems that an existing bridge inverter experimental circuit requires a plurality of independent power sources and is complicated in circuit structure. A three-phase full-bridge inverter circuits provided with six triodes is arranged in the direct-drive bridge inverter experimental circuit, the direct-drive bridge inverter experimental circuit comprises a microprocessor, a microprocessor power source, the three-phase full-bridge inverter circuit or a single-phase full-bridge inverter circuit, three switch tubes on the three-phase full-bridge inverter circuit are selectively PNP-type triodes or PMOS (P-channel metal oxide semiconductor) tube, three switch tubes under the three-phase full-bridge inverter circuit are selectively NPN-type triodes or NMOS (N-channel metal oxide semiconductor) tubes, and the microprocessor power source supplies power to the microprocessor and simultaneously supplies power to the six switch tubes. Alternately, two switch tubes on the single-phase full-bridge inverter circuit are selectively PNP-type triodes or PMOS tubes, two switch tubes under the single-phase full-bridge inverter circuit are selectively NPN-type triodes or NMOS tubes, and the microprocessor power supplies power to the microprocessor and simultaneously supplies power to the four switch tubes.
Description
Technical field
The present invention relates to directly drive the bridge type inverse experimental circuit, belong to the hookup field.
Background technology
Many when in the laboratory, often carrying out power converter with the compound mode use, like four switching bridge inversion experimental circuits, six switching bridge inversion experimental circuits with power electronic device.Generally speaking, six switching bridge inversion experimental circuits more have generality.Six switches that tradition adopts in the six switching bridge inverter circuits or be the positive-negative-positive triode entirely; Be NPN type triode entirely; Independence ground connection requires under the framework; Need divide other how to control to each switch, and six switches in this six switching bridges inverter circuit need four independent current sources at least.Reason is following: the single-chip microcomputer to switch control is to export commonly, and electronic power switch is owing to be that bridge-type connects, and but requiring is drive, just can not be altogether.
When six switches were all selected the positive-negative-positive triode for use, the power supply of three top switches can be supplied power with an independent current source altogether; Three following switches then must each all need an independent current source.
When six switches were all selected NPN type triode for use, the power supply of three following switches can be supplied power with an independent current source altogether; Three top switches then must each all need an independent current source.
Study and when testing six switching bridge inverter circuits in the laboratory needs the experimental circuit that a kind of operating voltage is not high, simple in structure, can show the bridge inverter main circuit function.And the six switching bridge inverter circuits that traditional experiment is used need a plurality of independent current sources, and because use a plurality of independent current sources, buffer circuit thereupon also needs many covers, and this experimental circuit structure is too complicated.
Summary of the invention
The present invention seeks to needs many cover independent current sources, circuit structure complicated problems in order to solve existing bridge type inverse experimental circuit, and a kind of direct driving bridge type inverse experimental circuit is provided.
Direct driving bridge type inverse experimental circuit according to the invention has four kinds of technical schemes:
First kind of scheme: the three phase full bridge inverter circuit that has adopted six triodes in the said direct driving bridge type inverse experimental circuit; Said direct driving bridge type inverse experimental circuit comprises microprocessor, power supply of microprocessor, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6
The first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 select the positive-negative-positive triode, and second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 select NPN type triode,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6 constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to the first switching tube G1 with second switch pipe G2; Series connection constitutes B brachium pontis mutually to the 3rd switching tube G3 with the 4th switching tube G4, and series connection constitutes C brachium pontis mutually to the 5th switching tube G5 with the 6th switching tube G6;
Power supply of microprocessor is a microprocessor power supply, and the cathode power supply output of power supply of microprocessor also links to each other with the emitter of the first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 simultaneously,
The negative power supply output of power supply of microprocessor also links to each other with the emitter of second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 simultaneously.
Second kind of technical scheme: the single-phase full bridge inverter circuit that has adopted four triodes in the said direct driving bridge type inverse experimental circuit; Said direct driving bridge type inverse experimental circuit comprises microprocessor, power supply of microprocessor, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4
The first switching tube G1 and the 3rd switching tube G3 select the positive-negative-positive triode, and second switch pipe G2 and the 4th switching tube G4 select NPN type triode,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4 constitute the single-phase full bridge inverter circuit; The first switching tube G1 and second switch pipe G2 series connection constitute a brachium pontis, and the 3rd switching tube G3 and the 4th switching tube G4 series connection constitute another brachium pontis;
Power supply of microprocessor is a microprocessor power supply, and the cathode power supply output of power supply of microprocessor also links to each other with the emitter of the first switching tube G1 and the 3rd switching tube G3 simultaneously,
The negative power supply output of power supply of microprocessor also links to each other with the emitter of second switch pipe G2 and the 4th switching tube G4 simultaneously.
The third technical scheme: the three phase full bridge inverter circuit that has adopted six metal-oxide-semiconductors in the said direct driving bridge type inverse experimental circuit; Said direct driving bridge type inverse experimental circuit comprises microprocessor, power supply of microprocessor, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6
The first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 select the PMOS pipe, and second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 select the NMOS pipe,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6 constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to the first switching tube G1 with second switch pipe G2; Series connection constitutes B brachium pontis mutually to the 3rd switching tube G3 with the 4th switching tube G4, and series connection constitutes C brachium pontis mutually to the 5th switching tube G5 with the 6th switching tube G6;
Power supply of microprocessor is a microprocessor power supply, and the cathode power supply output of power supply of microprocessor also links to each other with the source electrode of the first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 simultaneously,
The negative power supply output of power supply of microprocessor also links to each other with the source electrode of second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 simultaneously.
The 4th kind of technical scheme: the single-phase full bridge inverter circuit that has adopted four metal-oxide-semiconductors in the said direct driving bridge type inverse experimental circuit; Said direct driving bridge type inverse experimental circuit comprises microprocessor, power supply of microprocessor, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4
The first switching tube G1 and the 3rd switching tube G3 select the PMOS pipe, and second switch pipe G2 and the 4th switching tube G4 select the NMOS pipe,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4 constitute the single-phase full bridge inverter circuit; The first switching tube G1 and second switch pipe G2 series connection constitute a brachium pontis, and the 3rd switching tube G3 and the 4th switching tube G4 series connection constitute another brachium pontis;
Power supply of microprocessor is a microprocessor power supply, and the cathode power supply output of power supply of microprocessor also links to each other with the source electrode of the first switching tube G1 and the 3rd switching tube G3 simultaneously,
The negative power supply output of power supply of microprocessor also links to each other with the source electrode of second switch pipe G2 and the 4th switching tube G4 simultaneously.
Advantage of the present invention:
1, the needed multichannel independent current source of general bridge inverter main circuit and a plurality of independent light electric coupling have been saved.
2, in experiment, saved the working power of bridge inverter main circuit.
Description of drawings
Fig. 1 is the structural representation of execution mode one said direct driving bridge type inverse experimental circuit;
Fig. 2 is the structural representation of execution mode two said direct driving bridge type inverse experimental circuits;
Fig. 3 is the structural representation of execution mode three said direct driving bridge type inverse experimental circuits;
Fig. 4 is the structural representation of execution mode four said direct driving bridge type inverse experimental circuits.
Embodiment
Embodiment one: this execution mode is described below in conjunction with Fig. 1; Adopted the three phase full bridge inverter circuit of six triodes in the said direct driving bridge type inverse experimental circuit of this execution mode; Said direct driving bridge type inverse experimental circuit comprises microprocessor 1, power supply of microprocessor 2, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6
The first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 select the positive-negative-positive triode, and second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 select NPN type triode,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6 constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to the first switching tube G1 with second switch pipe G2; Series connection constitutes B brachium pontis mutually to the 3rd switching tube G3 with the 4th switching tube G4, and series connection constitutes C brachium pontis mutually to the 5th switching tube G5 with the 6th switching tube G6;
Power supply of microprocessor 2 is microprocessor 1 power supply, and the cathode power supply output of power supply of microprocessor 2 also links to each other with the emitter of the first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 simultaneously,
The negative power supply output of power supply of microprocessor 2 also links to each other with the emitter of second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 simultaneously.
The three phase full bridge inverter circuit of this execution mode is that threephase load 3 provides three-phase alternating current.
Embodiment two: this execution mode is described below in conjunction with Fig. 2; Adopted the single-phase full bridge inverter circuit of four triodes in the said direct driving bridge type inverse experimental circuit of this execution mode; Said direct driving bridge type inverse experimental circuit comprises microprocessor 1, power supply of microprocessor 2, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4
The first switching tube G1 and the 3rd switching tube G3 select the positive-negative-positive triode, and second switch pipe G2 and the 4th switching tube G4 select NPN type triode,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4 constitute the single-phase full bridge inverter circuit; The first switching tube G1 and second switch pipe G2 series connection constitute a brachium pontis, and the 3rd switching tube G3 and the 4th switching tube G4 series connection constitute another brachium pontis;
Power supply of microprocessor 2 is microprocessor 1 power supply, and the cathode power supply output of power supply of microprocessor 2 also links to each other with the emitter of the first switching tube G1 and the 3rd switching tube G3 simultaneously,
The negative power supply output of power supply of microprocessor 2 also links to each other with the emitter of second switch pipe G2 and the 4th switching tube G4 simultaneously.
The single-phase full bridge inverter circuit of this execution mode is that single-phase load 3 provides single-phase alternating current.
Embodiment three: this execution mode is described below in conjunction with Fig. 3; Adopted the three phase full bridge inverter circuit of six metal-oxide-semiconductors in the said direct driving bridge type inverse experimental circuit of this execution mode; Said direct driving bridge type inverse experimental circuit comprises microprocessor 1, power supply of microprocessor 2, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6
The first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 select the PMOS pipe, and second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 select the NMOS pipe,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3, the 4th switching tube G4, the 5th switching tube G5 and the 6th switching tube G6 constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to the first switching tube G1 with second switch pipe G2; Series connection constitutes B brachium pontis mutually to the 3rd switching tube G3 with the 4th switching tube G4, and series connection constitutes C brachium pontis mutually to the 5th switching tube G5 with the 6th switching tube G6;
Power supply of microprocessor 2 is microprocessor 1 power supply, and the cathode power supply output of power supply of microprocessor 2 also links to each other with the source electrode of the first switching tube G1, the 3rd switching tube G3 and the 5th switching tube G5 simultaneously,
The negative power supply output of power supply of microprocessor 2 also links to each other with the source electrode of second switch pipe G2, the 4th switching tube G4 and the 6th switching tube G6 simultaneously.
The three phase full bridge inverter circuit of this execution mode is that threephase load 3 provides three-phase alternating current.
Embodiment four: this execution mode is described below in conjunction with Fig. 4; Adopted the single-phase full bridge inverter circuit of four metal-oxide-semiconductors in the said direct driving bridge type inverse experimental circuit of this execution mode; Said direct driving bridge type inverse experimental circuit comprises microprocessor 1, power supply of microprocessor 2, the first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4
The first switching tube G1 and the 3rd switching tube G3 select the PMOS pipe, and second switch pipe G2 and the 4th switching tube G4 select the NMOS pipe,
The first switching tube G1, second switch pipe G2, the 3rd switching tube G3 and the 4th switching tube G4 constitute the single-phase full bridge inverter circuit; The first switching tube G1 and second switch pipe G2 series connection constitute a brachium pontis, and the 3rd switching tube G3 and the 4th switching tube G4 series connection constitute another brachium pontis;
Power supply of microprocessor 2 is microprocessor 1 power supply, and the cathode power supply output of power supply of microprocessor 2 also links to each other with the source electrode of the first switching tube G1 and the 3rd switching tube G3 simultaneously,
The negative power supply output of power supply of microprocessor 2 also links to each other with the source electrode of second switch pipe G2 and the 4th switching tube G4 simultaneously.
The single-phase full bridge inverter circuit of this execution mode is that single-phase load 3 provides single-phase alternating current.
The operation principle of execution mode one to four is the same, has following characteristics jointly:
1, bridge inverter main circuit (three phase full bridge inverter circuit or single-phase full bridge inverter circuit) the used DC power supply and the power supply-power supply of microprocessor 2 of microprocessor 1 are same power supplys.Like this, at first be for bridge inverter main circuit provides a lower operating voltage, also make bridge inverter main circuit and microprocessor 1 circuit that common reference level is arranged with making.
2, two top and following switching tubes of each brachium pontis use the complementary switch of polarity; Like this; Above the control of three switching tubes extremely can use the positive pole current potential as a reference of the power supply of microprocessor 1 jointly, and the negative pole that the control of three following transistor switches extremely can be used microprocessor 1 jointly current potential as a reference.
3, the output control terminal of microprocessor 1 directly extremely links to each other with the corresponding control of the transistor switch of bridge circuit, and does not influence the operate as normal of bridge circuit.When output control terminal G1, G3 and the G5 of microprocessor 1 are low level, control corresponding switching tube conducting; And when output control terminal G2, G4 and the G6 of microprocessor are high level, control corresponding switching tube conducting.
Claims (4)
1. directly drive the bridge type inverse experimental circuit; It is characterized in that; It comprises microprocessor (1), power supply of microprocessor (2), first switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3), the 4th switching tube (G4), the 5th switching tube (G5) and the 6th switching tube (G6)
First switching tube (G1), the 3rd switching tube (G3) and the 5th switching tube (G5) are selected the positive-negative-positive triode, and second switch pipe (G2), the 4th switching tube (G4) and the 6th switching tube (G6) are selected NPN type triode,
First switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3), the 4th switching tube (G4), the 5th switching tube (G5) and the 6th switching tube (G6) constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to first switching tube (G1) with second switch pipe (G2); Series connection constitutes B Bridge 1 arm mutually to the 3rd switching tube (G3) with the 4th switching tube (G4), and series connection constitutes C brachium pontis mutually to the 5th switching tube (G5) with the 6th switching tube (G6);
Power supply of microprocessor (2) is microprocessor (1) power supply, and the cathode power supply output of power supply of microprocessor (2) also links to each other with first switching tube (G1), the 3rd switching tube (G3) and the emitter of the 5th switching tube (G5) simultaneously,
The negative power supply output of power supply of microprocessor (2) also links to each other with second switch pipe (G2), the 4th switching tube (G4) and the emitter of the 6th switching tube (G6) simultaneously.
2. directly drive the bridge type inverse experimental circuit, it is characterized in that, it comprises microprocessor (1), power supply of microprocessor (2), first switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3) and the 4th switching tube (G4),
First switching tube (G1) and the 3rd switching tube (G3) are selected the positive-negative-positive triode, and second switch pipe (G2) and the 4th switching tube (G4) are selected NPN type triode,
First switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3) and the 4th switching tube (G4) constitute the single-phase full bridge inverter circuit; First switching tube (G1) and second switch pipe (G2) series connection constitute a brachium pontis, and the 3rd switching tube (G3) and the 4th switching tube (G4) series connection constitute another brachium pontis;
Power supply of microprocessor (2) is microprocessor (1) power supply, and the cathode power supply output of power supply of microprocessor (2) also links to each other with the emitter of first switching tube (G1) with the 3rd switching tube (G3) simultaneously,
The negative power supply output of power supply of microprocessor (2) also links to each other with the emitter of second switch pipe (G2) with the 4th switching tube (G4) simultaneously.
3. directly drive the bridge type inverse experimental circuit; It is characterized in that; It comprises microprocessor (1), power supply of microprocessor (2), first switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3), the 4th switching tube (G4), the 5th switching tube (G5) and the 6th switching tube (G6)
First switching tube (G1), the 3rd switching tube (G3) and the 5th switching tube (G5) are selected the PMOS pipe, and second switch pipe (G2), the 4th switching tube (G4) and the 6th switching tube (G6) are selected the NMOS pipe,
First switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3), the 4th switching tube (G4), the 5th switching tube (G5) and the 6th switching tube (G6) constitute the three phase full bridge inverter circuit; Series connection constitutes A brachium pontis mutually to first switching tube (G1) with second switch pipe (G2); Series connection constitutes B brachium pontis mutually to the 3rd switching tube (G3) with the 4th switching tube (G4), and series connection constitutes C brachium pontis mutually to the 5th switching tube (G5) with the 6th switching tube (G6);
Power supply of microprocessor (2) is microprocessor (1) power supply, and the cathode power supply output of power supply of microprocessor (2) also links to each other with first switching tube (G1), the 3rd switching tube (G3) and the source electrode of the 5th switching tube (G5) simultaneously,
The negative power supply output of power supply of microprocessor (2) also links to each other with second switch pipe (G2), the 4th switching tube (G4) and the source electrode of the 6th switching tube (G6) simultaneously.
4. directly drive the bridge type inverse experimental circuit, it is characterized in that, it comprises microprocessor (1), power supply of microprocessor (2), first switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3) and the 4th switching tube (G4),
First switching tube (G1) and the 3rd switching tube (G3) are selected the PMOS pipe, and second switch pipe (G2) and the 4th switching tube (G4) are selected the NMOS pipe,
First switching tube (G1), second switch pipe (G2), the 3rd switching tube (G3) and the 4th switching tube (G4) constitute the single-phase full bridge inverter circuit; First switching tube (G1) and second switch pipe (G2) series connection constitute a brachium pontis, and the 3rd switching tube (G3) and the 4th switching tube (G4) series connection constitute another brachium pontis;
Power supply of microprocessor (2) is microprocessor (1) power supply, and the cathode power supply output of power supply of microprocessor (2) also links to each other with the source electrode of first switching tube (G1) with the 3rd switching tube (G3) simultaneously,
The negative power supply output of power supply of microprocessor (2) also links to each other with the source electrode of second switch pipe (G2) with the 4th switching tube (G4) simultaneously.
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| CN2012101207363A CN102664550A (en) | 2012-04-23 | 2012-04-23 | Direct-drive bridge inverter experimental circuit |
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| CN2012101207363A CN102664550A (en) | 2012-04-23 | 2012-04-23 | Direct-drive bridge inverter experimental circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546082A (en) * | 2013-11-12 | 2014-01-29 | 黑龙江大学 | Reversible dual power space vector inverter circuit and control method for single-phase asynchronous motor |
| CN112737425A (en) * | 2020-12-25 | 2021-04-30 | 兰州飞行控制有限责任公司 | Direct current brushless motor drive circuit based on CPLD control |
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| JPS63114586A (en) * | 1986-10-29 | 1988-05-19 | Shibaura Eng Works Co Ltd | Braking of 3-phase dc brushless motor |
| CN2682733Y (en) * | 2004-03-28 | 2005-03-02 | 冯米和 | Electromechanical DC/AC three-phase frequency converter |
| US20100237816A1 (en) * | 2009-03-19 | 2010-09-23 | Kunio Seki | Brushless motor driving circuit |
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| JPS614473A (en) * | 1984-06-18 | 1986-01-10 | Nippon Denso Co Ltd | Transistor inverter device |
| JPS6343575A (en) * | 1986-08-06 | 1988-02-24 | Mitsubishi Electric Corp | Transistor inverter |
| JPS63114586A (en) * | 1986-10-29 | 1988-05-19 | Shibaura Eng Works Co Ltd | Braking of 3-phase dc brushless motor |
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| US20100237816A1 (en) * | 2009-03-19 | 2010-09-23 | Kunio Seki | Brushless motor driving circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103546082A (en) * | 2013-11-12 | 2014-01-29 | 黑龙江大学 | Reversible dual power space vector inverter circuit and control method for single-phase asynchronous motor |
| CN103546082B (en) * | 2013-11-12 | 2016-04-20 | 黑龙江大学 | For reversible dual power space vector inverter circuit and the control method of monopole asynchronous motor |
| CN112737425A (en) * | 2020-12-25 | 2021-04-30 | 兰州飞行控制有限责任公司 | Direct current brushless motor drive circuit based on CPLD control |
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Application publication date: 20120912 |