CN201638143U - VXI box power supply monitoring module - Google Patents
VXI box power supply monitoring module Download PDFInfo
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- CN201638143U CN201638143U CN2010201882389U CN201020188238U CN201638143U CN 201638143 U CN201638143 U CN 201638143U CN 2010201882389 U CN2010201882389 U CN 2010201882389U CN 201020188238 U CN201020188238 U CN 201020188238U CN 201638143 U CN201638143 U CN 201638143U
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Abstract
The utility model discloses a VXI box power supply monitoring module which mainly comprises an AC failure detection circuit, a photoelectrical coupling circuit, a power-on monitoring circuit, a sequential control circuit and a drive output circuit, wherein the AC failure detection circuit is connected with an external AC power supply, and the power-on monitoring circuit is connected with the external DC power supply; the AC failure detection circuit is connected with an input end of the sequential control circuit through the photoelectrical coupling circuit, and the power-on monitoring circuit is directly connected with an input end of the sequential control circuit; and an output end of the sequential control circuit is connected with the drive output circuit. The VXI box power supply monitoring module can regulate the sequential relationship between the DC power supply and each signal line in a VXI system so as to ensure the normal operation of the VXI system.
Description
Technical field
The utility model relates to automatic test bus system field, is specially a kind of VXI chassis power supply monitoring module.
Background technology
The vxi bus standard is a kind of industrial standard (IEEE1155).The vxi bus Auto-Test System integrates HP-IB and VME bus elite, and further develop, with its modular arrangements structure very flexibly, quite little volume, quite high throughput of system, extremely strong vibrationproof erosion-resisting characteristics and good Electro Magnetic Compatibility add design of Virtual Instrument thought, open and standardized developing direction has won users' support.Obtain more and more widely application based on the instrument and equipment of vxi bus.Yet VXI chassis power supply part of devices is aging easily, often breaks down, and make the VXI cabinet system state that paralyses, and its maintenance cost is high especially, needs to develop voluntarily a VXI chassis power supply for this reason.During research VXI cabinet backboard, find that general dc power supply can't directly make VXI system operate as normal.Tracing it to its cause, is owing to lack certain time sequence between the ACFAIL* of dc power supply and VXI system, SYSRESET* signal wire and concern.So need development to meet the Power Monitoring Unit of vxi bus system specifications, produce certain ACFAIL*, SYSRESET* and the sequential relationship between the direct supply.
The utility model content
Technical problem to be solved in the utility model provides a kind of VXI chassis power supply monitoring module, and it can adjust the sequential relationship of each signal wire in dc power supply and the VXI system, to guarantee the operate as normal of VXI system.
For addressing the above problem, a kind of VXI chassis power supply monitoring module that the utility model is designed mainly is made up of ac fault detection circuit, photoelectricity coupled circuit, the monitoring circuit that powers on, sequential control circuit and driving output circuit; The ac fault detection circuit is connected with external communication power supply, and the monitoring circuit that powers on is connected with external dc power supply; The ac fault detection circuit joins through the input end of photoelectricity coupled circuit and sequential control circuit, and the monitoring circuit that powers on then directly links to each other with the input end of sequential control circuit; The output terminal of sequential control circuit is connected with the driving output circuit.
In the such scheme, described sequential control circuit mainly by Sheffer stroke gate, first or door, second or door, voltage comparator circuit, potentiometer and peripheral resistance and electric capacity that data selector, operational amplifier constituted constitute; The inverting input of the output termination operational amplifier of photoelectricity coupled circuit, the output terminal of operational amplifier respectively with first or the door, second or the door link to each other with the input end of data selector; Another input port of data selector is connected with the monitoring circuit that powers on, the output terminal of data selector with second or the door another input end link to each other; Two input ends of Sheffer stroke gate also connect, and the bleeder circuit that constitutes with potentiometer and resistance is connected, the output of Sheffer stroke gate be connected to first or another input end; First or door and second or be connected to the driving output circuit.
In order to adjust sequential relationship, the output terminal of described transportation amplifier and second or door between also be connected to the RC delay circuit.
Described ac fault detection mainly is made of big resistor voltage divider circuit, rectifier bridge, filter circuit of pressure-stabilizing, big resistor voltage divider circuit is connected to the input end of rectifier bridge, the output terminal of rectifier bridge links to each other with filter circuit of pressure-stabilizing, big resistor voltage divider circuit is connected with external communication power supply, and filter circuit of pressure-stabilizing links to each other with the photoelectricity coupled circuit.The ac fault detection circuit adopts big electric resistance partial pressure method, and does not adopt traditional transformer voltage drop method, can be convenient to install so that module body is long-pending littler like this.
Drive output circuit and used two NPN triodes, circuit adopts the OC connection, can better satisfy the bigger requirement of ABSORPTION CURRENT under the low level state.
The utility model compared with prior art carries out monitoring work by the interchange detection and the supervision that powers on.In order to reach the sequential relationship of bus specification requirement, sequential control circuit has been carried out special design.The utility model is as a part important between VXI cabinet backboard and the power supply, can monitor AC power failure situation and electrification reset situation in real time, the VXI chassis power supply has been played good monitoring effect, for the normal operation of whole VXI system escorts.
Description of drawings
Fig. 1 is the principle schematic of a kind of VXI chassis power supply of the utility model monitoring module;
Fig. 2 is the scheme of installation of a kind of VXI chassis power supply monitoring module shown in Figure 1;
Fig. 3 is the circuit diagram of a kind of VXI chassis power supply monitoring module shown in Figure 1.
Embodiment
The principle schematic of a kind of VXI chassis power supply of the utility model monitoring module as shown in Figure 1, it mainly is made up of ac fault detection circuit, photoelectricity coupled circuit, the monitoring circuit that powers on, sequential control circuit and driving output circuit; The ac fault detection circuit is connected with external communication power supply, and the monitoring circuit that powers on is connected with external dc power supply; The ac fault detection circuit joins through the input end of photoelectricity coupled circuit and sequential control circuit, and the monitoring circuit that powers on then directly links to each other with the input end of sequential control circuit; The output terminal of sequential control circuit is connected with the driving output circuit.
As shown in Figure 3, in the utility model preferred embodiment, ac fault detection mainly is made of big resistor voltage divider circuit, rectifier bridge and filter circuit of pressure-stabilizing.Big resistor voltage divider circuit is in series by the big resistance R 1 of 1 510k Ω and the resistance R 2 of 1 15 Ω, and capacitor C 1 is connected in parallel on the big resistance R 1.Big resistor voltage divider circuit one end is connected with external communication power supply, and the other end is connected with the input end of rectifier bridge.The filter circuit of pressure-stabilizing that voltage stabilizing diode D6 and capacitor C 2 and resistance R 3 constitute is connected on the output terminal of rectifier bridge, and the output terminal of filter circuit of pressure-stabilizing links to each other with the photoelectricity coupled circuit.Above-mentioned ac fault detection circuit adopts big electric resistance partial pressure method, can be convenient to install so that module body is long-pending littler.The monitoring circuit that powers on adopts the MAX707 chip of MAXIM company, this modular circuit has good power monitoring function, have the output terminal of automatically reseting, and have the timing output function of 200ms, the SYSRESET* hysteresis ACFAIL* timing requirement of 200ms at least when having satisfied electrification reset preferably.The photoelectricity coupled circuit adopts photoelectrical coupler TLP521-1, has realized that the electricity of AC and DC is isolated, and has protected machine system effectively, and cabinet work is more safe and reliable like this.Sequential control circuit is the core of total system, its mainly by Sheffer stroke gate, first or door, second or door and the voltage comparator circuit that digital logic device, operational amplifier constituted, potentiometer and peripheral resistance such as data selector and electric capacity constitute.The inverting input of the output termination operational amplifier of photoelectricity coupled circuit, the output terminal of operational amplifier respectively with first or the door, second or the door link to each other with the input end of data selector.Another input port of data selector is connected with the monitoring circuit that powers on, the output terminal of data selector with second or the door another input end link to each other.Two input ends of Sheffer stroke gate also connect, and the bleeder circuit that constitutes with potentiometer and resistance is connected, the output of Sheffer stroke gate be connected to first or another input end.First or door and second or be connected to the driving output circuit.In order to adjust sequential relationship, the output terminal of described transportation amplifier and second or door between also be connected to the RC delay circuit.Drive output circuit and used two NPN triode Q1 and Q2, circuit adopts the OC connection, the base stage of two NPN triode Q1 and Q2 respectively with first or door, second or the output terminal of door link to each other, can better satisfy the bigger requirement of ABSORPTION CURRENT under the low level state.
When using this utility model, it is installed on the VXI cabinet backboard, it has, and volume is little, working stability is reliable, be convenient to characteristics such as installation.Referring to Fig. 2.After the installation, when VXI cabinet system turned round, the power fail Failed above the Zero greeve controller HP E8491B, system failure SYSFAIL pilot lamp are glittering to knock out after several times, shows that the power supply of VXI cabinet system is normal.In VXI module actual motion subsequently, all are normal in this VXI chassis power supply monitoring module work, and whole VXI cabinet runs well, and has realized the function of backboard Power Supply Monitoring preferably.
Claims (5)
1. a VXI chassis power supply monitoring module comprises body, it is characterized in that: described body mainly is made up of ac fault detection circuit, photoelectricity coupled circuit, the monitoring circuit that powers on, sequential control circuit and driving output circuit; The ac fault detection circuit is connected with external communication power supply, and the monitoring circuit that powers on is connected with external dc power supply; The ac fault detection circuit joins through the input end of photoelectricity coupled circuit and sequential control circuit, and the monitoring circuit that powers on then directly links to each other with the input end of sequential control circuit; The output terminal of sequential control circuit is connected with the driving output circuit.
2. a kind of VXI chassis power supply monitoring module according to claim 1 is characterized in that: described sequential control circuit mainly by Sheffer stroke gate, first or door, second or door, voltage comparator circuit, potentiometer and peripheral resistance and electric capacity that data selector, operational amplifier constituted constitute; The inverting input of the output termination operational amplifier of photoelectricity coupled circuit, the output terminal of operational amplifier respectively with first or the door, second or the door link to each other with the input end of data selector; Another input port of data selector is connected with the monitoring circuit that powers on, the output terminal of data selector with second or the door another input end link to each other; Two input ends of Sheffer stroke gate also connect, and the bleeder circuit that constitutes with potentiometer and resistance is connected, the output of Sheffer stroke gate be connected to first or another input end; First or door and second or be connected to the driving output circuit.
3. a kind of VXI chassis power supply monitoring module according to claim 2 is characterized in that: the output terminal of described operational amplifier and second or the door between also be connected to the RC delay circuit.
4. a kind of VXI chassis power supply monitoring module according to claim 1, it is characterized in that: described ac fault detection mainly is made of big resistor voltage divider circuit, rectifier bridge and filter circuit of pressure-stabilizing, big resistor voltage divider circuit is connected to the input end of rectifier bridge, the output terminal of rectifier bridge links to each other with filter circuit of pressure-stabilizing, big resistor voltage divider circuit is connected with external communication power supply, and filter circuit of pressure-stabilizing links to each other with the photoelectricity coupled circuit.
5. a kind of VXI chassis power supply monitoring module according to claim 1, it is characterized in that: described driving output circuit is the NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201882389U CN201638143U (en) | 2010-05-11 | 2010-05-11 | VXI box power supply monitoring module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201882389U CN201638143U (en) | 2010-05-11 | 2010-05-11 | VXI box power supply monitoring module |
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| Publication Number | Publication Date |
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| CN201638143U true CN201638143U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201882389U Expired - Fee Related CN201638143U (en) | 2010-05-11 | 2010-05-11 | VXI box power supply monitoring module |
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| CN (1) | CN201638143U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226818A (en) * | 2015-10-08 | 2016-01-06 | 许继集团有限公司 | A kind of DC control protecting platform cabinet Monitor and Control device |
| CN107272484A (en) * | 2017-06-15 | 2017-10-20 | 西安微电子技术研究所 | A kind of electronic product multiple feed managing device |
| CN111193557A (en) * | 2018-11-14 | 2020-05-22 | 广东新岸线计算机系统芯片有限公司 | Calibration tester for ultra-high-speed wireless local area network |
| CN113009257A (en) * | 2021-02-26 | 2021-06-22 | 西安微电子技术研究所 | Simple and reliable power-on state detection circuit |
| CN113985193A (en) * | 2021-09-26 | 2022-01-28 | 中津沛科建设股份有限公司 | Wireless power failure monitoring system and monitoring method |
-
2010
- 2010-05-11 CN CN2010201882389U patent/CN201638143U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226818A (en) * | 2015-10-08 | 2016-01-06 | 许继集团有限公司 | A kind of DC control protecting platform cabinet Monitor and Control device |
| CN107272484A (en) * | 2017-06-15 | 2017-10-20 | 西安微电子技术研究所 | A kind of electronic product multiple feed managing device |
| CN111193557A (en) * | 2018-11-14 | 2020-05-22 | 广东新岸线计算机系统芯片有限公司 | Calibration tester for ultra-high-speed wireless local area network |
| CN111193557B (en) * | 2018-11-14 | 2023-09-19 | 广东新岸线科技有限公司 | Calibration tester for ultra-high-speed wireless local area network |
| CN113009257A (en) * | 2021-02-26 | 2021-06-22 | 西安微电子技术研究所 | Simple and reliable power-on state detection circuit |
| CN113009257B (en) * | 2021-02-26 | 2023-09-29 | 西安微电子技术研究所 | Simple and reliable power-on state detection circuit |
| CN113985193A (en) * | 2021-09-26 | 2022-01-28 | 中津沛科建设股份有限公司 | Wireless power failure monitoring system and monitoring method |
| CN113985193B (en) * | 2021-09-26 | 2024-01-26 | 中津沛科建设股份有限公司 | Wireless power failure monitoring system and monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120511 |