CN204515427U - A kind of three-phase VSR hardware pulse channel circuit based on DSP - Google Patents
A kind of three-phase VSR hardware pulse channel circuit based on DSP Download PDFInfo
- Publication number
- CN204515427U CN204515427U CN201520185988.3U CN201520185988U CN204515427U CN 204515427 U CN204515427 U CN 204515427U CN 201520185988 U CN201520185988 U CN 201520185988U CN 204515427 U CN204515427 U CN 204515427U
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- China
- Prior art keywords
- optically coupled
- power supply
- coupled isolator
- dsp
- side power
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- 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 - Fee Related
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- Inverter Devices (AREA)
Abstract
A kind of three-phase VSR hardware pulse channel circuit based on DSP, the described three-phase VSR hardware pulse channel circuit based on DSP comprises optically coupled isolator, resistance R1, R2, R3, phase inverter, primary side power supply is accessed after described optically coupled isolator resistance in series R1, described optically coupled isolator is connected with signal input part by phase inverter, described signal input part is by resistance R2 ground connection, described optically coupled isolator access secondary side power supply, described secondary side power supply connects optically coupled isolator output terminal by resistance R3, described secondary side power supply, optically coupled isolator output terminal, optically coupled isolator earth terminal is connected with control circuit, SY-EVM2407A (V2.0) evaluation board selected by described control circuit, described control circuit connects power supply.The light-coupled isolation of IPM module is delivered in the pulse that the utility model can realize DSP, and circuit connects simple, and antijamming capability is strong, and work efficiency is high; Pull down resistor R2 can maintain stabilization of level.
Description
Technical field
The utility model relates to pulse passage circuit, is specifically related to a kind of three-phase VSR hardware pulse channel circuit based on DSP.
Background technology
The connection of DSP module and IPM module, IPM module is delivered in the pulse exported due to DSP module, needs to take light-coupled isolation, all generally adopt optical coupling isolator now, can play the effect of isolation like this, but the circuit of optical coupling isolator in pulse passage connects more complicated, and inefficiency.
Utility model content
For above the deficiencies in the prior art, the utility model provides a kind of three-phase VSR hardware pulse channel circuit based on DSP.
A kind of three-phase VSR hardware pulse channel circuit based on DSP, the described three-phase VSR hardware pulse channel circuit based on DSP comprises optically coupled isolator, resistance R1, R2, R3, phase inverter, primary side power supply is accessed after described optically coupled isolator resistance in series R1, described optically coupled isolator is connected with signal input part by phase inverter, described signal input part is by resistance R2 ground connection, described optically coupled isolator access secondary side power supply, described secondary side power supply connects optically coupled isolator output terminal by resistance R3, described secondary side power supply, optically coupled isolator output terminal, optically coupled isolator earth terminal is connected with control circuit, SY-EVM2407A (V2.0) evaluation board selected by described control circuit, described control circuit connects power supply.
High speed photo coupling 6N137 selected by described optically coupled isolator.
74LS04 not gate selected by described phase inverter.
Described primary side power supply is provided by DSP development board.
Described secondary side power supply is fed out from 2 pin by IPM.
The beneficial effects of the utility model are: the light-coupled isolation of IPM module is delivered in the pulse that the utility model can realize DSP, and circuit connects simple, and antijamming capability is strong, and work efficiency is high; Pull down resistor R2 can maintain stabilization of level.
Accompanying drawing explanation
Fig. 1 is a kind of three-phase VSR hardware pulse channel circuit connection layout based on DSP of the utility model;
In figure: 1 is optically coupled isolator; 2 is phase inverter; 3 is control circuit.
Embodiment
Illustrate below in conjunction with embodiment and accompanying drawing and the utility model is described in further details.
As shown in Figure 1, a kind of three-phase VSR hardware pulse channel circuit based on DSP, the described three-phase VSR hardware pulse channel circuit based on DSP comprises optically coupled isolator (1), resistance R1, R2, R3, phase inverter (2), primary side power supply is accessed after described optically coupled isolator (1) resistance in series R1, described optically coupled isolator (1) is connected with signal input part by phase inverter (2), described signal input part is by resistance R2 ground connection, described optically coupled isolator (1) access secondary side power supply, described secondary side power supply connects optically coupled isolator (1) output terminal by resistance R3, described secondary side power supply, optically coupled isolator (1) output terminal, optically coupled isolator (1) earth terminal is connected with control circuit (3), SY-EVM2407A (V2.0) evaluation board selected by described control circuit (3), described control circuit (3) connects power supply.IPM module is delivered in the pulse exported due to DSP, take light-coupled isolation, so the light-coupled isolation of IPM module is delivered in the pulse that the utility model can realize DSP, and circuit connects simple, and antijamming capability is strong, and work efficiency is high.
Particularly, high speed photo coupling 6N137 selected by described optically coupled isolator (1), and 74LS04 not gate selected by described phase inverter (2), and described primary side power supply is provided by DSP development board, and described secondary side power supply is fed out from 2 pin by IPM.
Because pwm pulse signal is COMS level, so devise pull down resistor R2 in the utility model, maintain level equalization.
Following technique effect can be realized by the utility model:
The light-coupled isolation of IPM module is delivered in the pulse that the utility model can realize DSP, and circuit connects simple, and antijamming capability is strong, and work efficiency is high; Pull down resistor R2 can maintain stabilization of level.
Claims (5)
1. the three-phase VSR hardware pulse channel circuit based on DSP, it is characterized in that the described three-phase VSR hardware pulse channel circuit based on DSP comprises optically coupled isolator (1), resistance R1, R2, R3, phase inverter (2), primary side power supply is accessed after described optically coupled isolator (1) resistance in series R1, described optically coupled isolator (1) is connected with signal input part by phase inverter (2), described signal input part is by resistance R2 ground connection, described optically coupled isolator (1) access secondary side power supply, described secondary side power supply connects optically coupled isolator (1) output terminal by resistance R3, described secondary side power supply, optically coupled isolator (1) output terminal, optically coupled isolator (1) earth terminal is connected with control circuit (3), SY-EVM2407A (V2.0) evaluation board selected by described control circuit (3), described control circuit (3) connects power supply.
2. a kind of three-phase VSR hardware pulse channel circuit based on DSP according to claim 1, is characterized in that high speed photo coupling 6N137 selected by described optically coupled isolator (1).
3. a kind of three-phase VSR hardware pulse channel circuit based on DSP according to claim 1, is characterized in that 74LS04 not gate selected by described phase inverter (2).
4. a kind of three-phase VSR hardware pulse channel circuit based on DSP according to claim 1, is characterized in that described primary side power supply is provided by DSP development board.
5. a kind of three-phase VSR hardware pulse channel circuit based on DSP according to claim 1, is characterized in that described secondary side power supply is fed out from 2 pin by IPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185988.3U CN204515427U (en) | 2015-03-30 | 2015-03-30 | A kind of three-phase VSR hardware pulse channel circuit based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185988.3U CN204515427U (en) | 2015-03-30 | 2015-03-30 | A kind of three-phase VSR hardware pulse channel circuit based on DSP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515427U true CN204515427U (en) | 2015-07-29 |
Family
ID=53713379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520185988.3U Expired - Fee Related CN204515427U (en) | 2015-03-30 | 2015-03-30 | A kind of three-phase VSR hardware pulse channel circuit based on DSP |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204515427U (en) |
-
2015
- 2015-03-30 CN CN201520185988.3U patent/CN204515427U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20170330 |