CN204302912U - A kind of 3U CPCI insulating power supply - Google Patents
A kind of 3U CPCI insulating power supply Download PDFInfo
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- CN204302912U CN204302912U CN201520002960.1U CN201520002960U CN204302912U CN 204302912 U CN204302912 U CN 204302912U CN 201520002960 U CN201520002960 U CN 201520002960U CN 204302912 U CN204302912 U CN 204302912U
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- power supply
- power
- oxide
- isolation module
- semiconductor
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Abstract
Do you the utility model discloses a kind of 3U? CPCI insulating power supply, its structure comprises power isolation module, power-switching circuit, and power isolation module adopts 24V to turn 12V power isolation module, inputs vehicle-mounted 24V power supply, exports 12V system voltage SYS_OUT; Power-switching circuit comprises LTC1624, metal-oxide-semiconductor, LM2611 and LTC3728, and the 12V system voltage SYS_OUT that wherein power isolation module exports is converted to 5VSB voltage through LTC1624 chip, converts 12V power supply to by metal-oxide-semiconductor; The 12V power supply changed by metal-oxide-semiconductor converts-12V power supply to through LM2611, converts 5V and 3.3V power supply to through LTC3728.The utility model can bear the voltage fluctuation of onboard power system, increases insulating power supply module between externally fed and machine are powered, and the service behaviour that can play buffer action and then protection complete machine when externally fed change in voltage is larger is not damaged.
Description
Technical field
The utility model relates to insulating power supply field, is specifically related to a kind of 3U CPCI insulating power supply, is applicable to vehicle-mounted CPCI class computer or server.
Background technology
Industry control, the requirement of fail safe of war products to power supply are higher, and onboard power system DC power supply is generally 24V, but the wherein normal surge voltage with exceeding normal power supply.For ensureing the work of power consumption equipment normal reliable in the present context, the surge voltage impact under this environment must can be born.Applied power source needs the voltage fluctuation of bearing onboard power system, increases insulating power supply module between externally fed and machine are powered, and the service behaviour that can play buffer action and then protection complete machine when externally fed change in voltage is larger is not damaged.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of insulating power supply scheme that computer normally works that can ensure, thus can ensure the reliability of computer operation.
The technical scheme that the utility model adopts is:
A kind of 3U CPCI insulating power supply, its structure comprises power isolation module, power-switching circuit, and power isolation module adopts 24V to turn 12V power isolation module, inputs vehicle-mounted 24V power supply, exports 12V system voltage SYS_OUT; Power-switching circuit comprises LTC1624, metal-oxide-semiconductor, LM2611 and LTC3728, and the 12V system voltage SYS_OUT that wherein power isolation module exports is converted to 5VSB voltage through LTC1624 chip, converts 12V power supply to by metal-oxide-semiconductor; The 12V power supply changed by metal-oxide-semiconductor converts-12V power supply to through LM2611, converts 5V and 3.3V power supply to through LTC3728.
Described metal-oxide-semiconductor connects the enable control end of " EN " signal end as 12V power supply.When " EN " for low level time, " 12_SW " be also low level, now produce 12V power supply through the conducting of P channel MOS tube, when " EN " for high level or unsettled time " 12_SW " be also low level, now end through P channel MOS tube.Therefore " EN " can be used as the mains switch of complete machine.
Produce uncontrollable 5VSB voltage through LTC1624, be 2A by configuration inductor rectifier and power transfer metal-oxide-semiconductor setting rated current, the existence due to this voltage can realize the ATX pattern of power supply.
Described power isolation module adopts VICOR's
v24C12T150BL.the maximum power that the whole power-supply system of power decision of DC/DC insulating power supply module can provide, therefore selects power to be the vicor power module of 150W
v24C12T150BL.
The beneficial effects of the utility model are: the utility model can bear the voltage fluctuation of onboard power system; between externally fed and machine are powered, increase insulating power supply module, the service behaviour that can play buffer action and then protection complete machine when externally fed change in voltage is larger is not damaged.External interface reserves 3UCPCI attaching plug and 24 core ATX power supplys, therefore, the present invention is applicable to all 3U board CPCI computers, and all computers needing ATX Power supply, design on fit structure, this power panel is also compatible with 6U board CPCI computer.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model;
Fig. 2 is system power supply realizing circuit figure of the present utility model;
Fig. 3 is the utility model 12V power supply realizing circuit figure;
Fig. 4 is the utility model 5VSB realizing circuit figure;
Fig. 5 is the utility model-12V realizing circuit figure;
Fig. 6 is the utility model 5V and 3.3V realizing circuit figure.
Embodiment
With reference to the accompanying drawings, by embodiment, the utility model is further illustrated:
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of 3U CPCI insulating power supply, its structure comprises power isolation module, power-switching circuit, and power isolation module adopts 24V to turn 12V power isolation module, inputs vehicle-mounted 24V power supply, exports 12V system voltage SYS_OUT; Power-switching circuit comprises LTC1624, metal-oxide-semiconductor, LM2611 and LTC3728, and the 12V system voltage SYS_OUT that wherein power isolation module exports is converted to 5VSB voltage through LTC1624 chip, converts 12V power supply to by metal-oxide-semiconductor; The 12V power supply changed by metal-oxide-semiconductor converts-12V power supply to through LM2611, converts 5V and 3.3V power supply to through LTC3728.
Embodiment 2:
As shown in Figure 3, on the basis of embodiment 1, metal-oxide-semiconductor described in the present embodiment connects the enable control end of " EN " signal end as 12V power supply.When " EN " for low level time, " 12_SW " be also low level, now produce 12V power supply through the conducting of P channel MOS tube, when " EN " for high level or unsettled time " 12_SW " be also low level, now end through P channel MOS tube.Therefore " EN " can be used as the mains switch of complete machine.
Embodiment 3:
As shown in Figure 4, on the basis of embodiment 1 or 2, the present embodiment produces uncontrollable 5VSB voltage through LTC1624, and be 2A by configuration inductor rectifier and power transfer metal-oxide-semiconductor setting rated current, the existence due to this voltage can realize the ATX pattern of power supply.
As shown in Figure 5, after 12V power supply produces, automatically-12V is produced by LM2611, due to the existence of this-12V voltage, when computer needs RS232 serial port board, but when this serial port board does not exist voltage pump rise module ,-12V ensure that RS232 logic level 1(-3V ~-15V) normal realization, current settings is 0.8A, meets the requirement of serial port board normal operating power.
As shown in Figure 6, after 12V power supply produces, automatically 5V and 3.3V is produced by LTC3728.
Embodiment 4:
On the basis of embodiment 3, power isolation module described in the present embodiment adopts VICOR's
v24C12T150BL.the maximum power that the whole power-supply system of power decision of DC/DC insulating power supply module can provide, therefore selects power to be the vicor power module of 150W
v24C12T150BL.
Claims (4)
1. a 3U CPCI insulating power supply, is characterized in that: its structure comprises power isolation module, power-switching circuit, and power isolation module adopts 24V to turn 12V power isolation module, inputs vehicle-mounted 24V power supply, exports 12V system voltage SYS_OUT; Power-switching circuit comprises LTC1624, metal-oxide-semiconductor, LM2611 and LTC3728, and the 12V system voltage SYS_OUT that wherein power isolation module exports is converted to 5VSB voltage through LTC1624 chip, converts 12V power supply to by metal-oxide-semiconductor; The 12V power supply changed by metal-oxide-semiconductor converts-12V power supply to through LM2611, converts 5V and 3.3V power supply to through LTC3728.
2. a kind of 3U CPCI insulating power supply according to claim 1, is characterized in that: described metal-oxide-semiconductor connects the enable control end of " EN " signal end as 12V power supply.
3. a kind of 3U CPCI insulating power supply according to claim 1 and 2, is characterized in that: produce uncontrollable 5VSB voltage through LTC1624, is 2A by configuration inductor rectifier and power transfer metal-oxide-semiconductor setting rated current.
4. a kind of 3U CPCI insulating power supply according to claim 3, is characterized in that: described power isolation module adopts VICOR's
v24C12T150BL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002960.1U CN204302912U (en) | 2015-01-05 | 2015-01-05 | A kind of 3U CPCI insulating power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002960.1U CN204302912U (en) | 2015-01-05 | 2015-01-05 | A kind of 3U CPCI insulating power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302912U true CN204302912U (en) | 2015-04-29 |
Family
ID=53108442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520002960.1U Expired - Fee Related CN204302912U (en) | 2015-01-05 | 2015-01-05 | A kind of 3U CPCI insulating power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN204302912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768378A (en) * | 2018-05-23 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | High-voltage driving device based on PXI modules |
-
2015
- 2015-01-05 CN CN201520002960.1U patent/CN204302912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768378A (en) * | 2018-05-23 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | High-voltage driving device based on PXI modules |
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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 |
Granted publication date: 20150429 Termination date: 20160105 |