CN215646209U - Alternating current and direct current compatible redundant power supply - Google Patents
Alternating current and direct current compatible redundant power supply Download PDFInfo
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- CN215646209U CN215646209U CN202120611572.9U CN202120611572U CN215646209U CN 215646209 U CN215646209 U CN 215646209U CN 202120611572 U CN202120611572 U CN 202120611572U CN 215646209 U CN215646209 U CN 215646209U
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Abstract
The utility model provides a redundant power supply compatible with alternating current and direct current, which comprises a back plate module, an alternating current module and/or a direct current module; the alternating current module receives high-voltage alternating current voltage, converts the high-voltage alternating current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the back plate module; the direct current module receives the wide-voltage direct current voltage, converts the wide-voltage direct current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the backboard module; and the backboard module is used for converting the low-voltage direct-current voltage output by the alternating-current module and/or the direct-current module into the voltage required by the electric equipment. The utility model can be realized in all electronic equipment needing stable redundant power supplies, such as computers, switches, communication equipment and the like, and can support high-voltage alternating current power supply or low-voltage direct current power supply and alternating current and direct current hybrid power supply; the problem of electromagnetic compatibility is solved while power redundancy is realized; the power supply condition can be monitored in real time; and hot plug of the power supply module is supported when the equipment runs.
Description
Technical Field
The utility model relates to the field of power supplies, in particular to a redundant power supply compatible with alternating current and direct current.
Background
All electronic equipment needs to work normally and can not be powered off, and particularly equipment such as a server and a switch which needs to be powered off for a long time. Such an apparatus:
1. the reliability and maintainability requirements are high. The current common scheme is a redundant power supply which is convenient to use and plug, and when a certain power supply is damaged, the standby power supply can be directly replaced without power failure.
2. In the field of ruggedized computers, high requirements are placed on electromagnetic compatibility, and requirements of GJB _151B 2013 are generally required. And radiation and conduction leakage of the power supply are major factors affecting the electromagnetic compatibility of the device. The current solution is to add a power filter at the input of the power supply to reduce the power supply noise leakage. However, this has the problem that if the power supply is replaced, the power supply needs to be disconnected from the filter, which reduces the ease of maintenance.
3. In the field of ruggedized computers, there is a high requirement for ac/dc compatibility, that is, one electronic device can support ac 220V input and also can support dc 24V input. This is because in the on-board case, only a direct voltage is usually available, whereas in the case of conventional computer systems, an alternating voltage input is usually used. The current solutions are: (1) the same power supply can be designed to support both ac and dc input, and for power supply technical reasons, the ac voltage is high, and the supported dc voltage is also very high, generally 220V for ac and 240V for dc. This still cannot meet the low voltage dc requirement. (2) Different power supplies are matched, an alternating current power supply is installed in a scene needing alternating current, and a direct current power supply is installed in a scene needing direct current. However, this has the problem that the machine needs to be disassembled for replacement every time the power supply is replaced, which increases the maintenance time, and the replacement of the power supply needs professional personnel, which increases the cost and time.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, a redundant power supply compatible with alternating current and direct current is provided.
The technical scheme adopted by the utility model is as follows: a redundant power supply compatible with alternating current and direct current comprises a back panel module, an alternating current module and/or a direct current module;
the alternating current module receives high-voltage alternating current voltage, converts the high-voltage alternating current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the back plate module;
the direct current module receives the wide-voltage direct current voltage, converts the wide-voltage direct current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the backboard module;
and the backboard module is used for converting the low-voltage direct-current voltage output by the alternating-current module and/or the direct-current module into the voltage required by the electric equipment.
Further, the backplane module supports connection of a plurality of ac modules or connection of a plurality of dc modules or simultaneous connection of an ac module and a dc module.
Furthermore, the backboard module, the alternating current module and the direct current module are connected in a hot plug mode through a hot plug connector.
Further, the hot-plug connector adopts a gold finger connector or a CPCIE board-to-board connector.
Furthermore, a detecting module is arranged in the back plate module and used for detecting whether the alternating current module/the direct current module is inserted or not.
Furthermore, the back plate module is provided with an output voltage adjusting module for adjusting the output voltage; the output voltage regulating module is realized by a width-adjustable voltage output circuit, and the output voltage is regulated through the difference of the values of the two resistors
Furthermore, corresponding independent filters are arranged inside the alternating current module and the direct current module.
Furthermore, a shielding cover is arranged outside the independent filter.
Furthermore, the backboard module, the alternating current module and the direct current module are communicated with the host through a PMBUS protocol and used for monitoring the state of each module.
Further, the high-voltage alternating current voltage is 220V.
Further, the wide voltage direct current voltage is 12V-72V wide voltage direct current voltage.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model can be realized in all electronic equipment needing stable redundant power supplies, such as computers, switches, communication equipment and the like.
2. The electronic equipment can support high-voltage alternating current power supply or low-voltage direct current power supply and alternating current and direct current hybrid power supply.
3. By adopting the electronic equipment, the problem of electromagnetic compatibility is solved while power redundancy is realized.
4. The power supply condition can be monitored in real time.
5. And hot plug of the power supply module is supported when the equipment runs.
Drawings
Fig. 1 is a schematic diagram of a redundant power supply compatible with ac and dc according to the present invention.
Fig. 2 is an external schematic view of a redundant power grid according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical problem to be solved by the utility model is as follows:
1. the electronic equipment is compatible with high-voltage alternating current and low-voltage direct current at the same time;
2. when a certain power supply is damaged, the equipment cannot work normally;
3. when the load is too large, the problem of temporarily needing more power is solved;
4. when one power supply is damaged, the power supply is difficult to replace quickly;
5. the problem of ensuring electromagnetic compatibility when the power supply can be plugged is solved.
Aiming at the problems, the utility model provides a redundant power supply compatible with alternating current and direct current, which comprises the following specific schemes:
as shown in fig. 1, a redundant power supply compatible with ac and dc includes a backplane module, an ac module and/or a dc module;
the alternating current module receives high-voltage alternating current voltage, converts the high-voltage alternating current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the backboard module, and the high-voltage alternating current voltage is 220V;
the direct current module receives wide-voltage direct current voltage, converts the wide-voltage direct current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the backboard module, wherein the wide-voltage direct current voltage is 12-72V wide-voltage direct current voltage;
and the backboard module is used for converting the low-voltage direct-current voltage output by the alternating-current module and/or the direct-current module into the voltage required by the electric equipment.
Specifically, the backplane module supports connection of a plurality of alternating current modules or connection of a plurality of direct current modules or simultaneous connection of the alternating current modules and the direct current modules; when one module fails, the other module can work normally, and when the two power supply modules work simultaneously, the power consumption provided by the power supply is the sum of the power consumptions of the two power supply modules.
The backboard module is connected with the alternating current module and the direct current module in a hot plug mode through the hot plug connector, the power module and the backboard module can be conveniently plugged, and when one module breaks down, the backboard module is convenient to replace. The connector needs to be convenient to pull and insert and support large current. But may be not limited to using gold finger connectors or CPCIE or the like board-to-board connectors.
Because different equipment power consumption requirements are different and different voltages required by different applications are different, in order to conveniently adjust the output voltage, the backboard module is provided with an output voltage adjusting module for adjusting the output voltage; the back board module can be flexibly adjusted according to actual requirements, for example, 12V, 24V, 48V and the like are commonly used; as shown in fig. 2, the output voltage adjustable module is implemented by a variable-width output circuit, the main control chip of the output voltage adjustable module is not changed, the output voltage is adjusted by the difference of the values of the two resistors, the variable-width output circuit includes a MOS transistor, a diode, a comparator, an inductor, a capacitor, a resistor R1 and a resistor R2, the output voltage can be changed by changing the resistances of R1 and R2, and the calculation formula of the output voltage is as follows:
Vout＝1.242×(R1+R2)/R2
in one embodiment, after the 12VSTB voltage provided by the ac module or the dc module is input to the backplane module, the backplane module detects that the 12VSTB voltage is in place, sets the PSON signal to a high level of 3.3V, waits for a power-on command issued by a user, and after receiving the power-on command, sets the PSON signal to a low level and sends the low level to the ac module or the dc module. After receiving the PSON signal after being pulled down, the alternating current module or the direct current module outputs 12V, the backboard module converts one path of 12V into 5V, the other path of 12V into 3.3V, and simultaneously converts 12VSTB into 5VSTB, when the voltage conversion process is completed, the voltage is output to the power utilization mainboard, and the whole process is completed. Wherein, the conversion chip can adopt LM3485 but not limited to.
In a preferred embodiment, the backplane module is provided with a detection module for detecting whether the ac module/the dc module is inserted, the detection module generates a detection signal, the PIN of the detection signal is relatively long, and the detection module and the dc module are in contact with each other first when being inserted; after the signal is valid, the backboard works to support hot plug of the power module.
In a preferred embodiment, the ac module and the dc module are internally provided with corresponding independent filters, and each module and the filter form an integrated module, as shown in fig. 2, thereby improving electromagnetic compatibility.
In a preferred embodiment, the separate filter is externally provided with a shielding case.
In a preferred embodiment, the backplane module, the ac module and the dc module are all in communication with the host via a PMBUS protocol for monitoring the status of each module.
The utility model is suitable for all equipment needing redundant power supplies, such as computers, servers, workstations, notebook computers, communication equipment and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A redundant power supply compatible with alternating current and direct current is characterized by comprising a back plate module, an alternating current module and/or a direct current module;
the alternating current module receives high-voltage alternating current voltage, converts the high-voltage alternating current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the back plate module;
the direct current module receives the wide-voltage direct current voltage, converts the wide-voltage direct current voltage into low-voltage direct current voltage and outputs the low-voltage direct current voltage to the backboard module;
and the backboard module is used for converting the low-voltage direct-current voltage output by the alternating-current module and/or the direct-current module into the voltage required by the electric equipment.
2. The ac-dc compatible redundant power supply of claim 1 wherein said backplane module supports multiple ac module connections or multiple dc module connections or both ac and dc modules.
3. The AC and DC compatible redundant power supply of claim 2, wherein the backplane module is hot-pluggable to the AC module and the DC module via hot-pluggable connectors.
4. The AC-DC compatible redundant power supply of claim 3, wherein the hot swap connector is a gold finger connector or a CPCIE connector.
5. The redundant power supply compatible with alternating current and direct current according to claim 1, wherein the backplane module is provided with an output voltage adjusting module for adjusting the output voltage; the output voltage adjusting module is realized by a width-adjustable voltage output circuit, and the output voltage is adjusted through the difference of the values of the two resistors.
6. The ac-dc compatible redundant power supply of claim 1, wherein the ac module and the dc module have respective independent filters disposed therein.
7. The ac-dc compatible redundant power supply of claim 6, wherein a shielding can is provided outside said independent filter.
8. The redundant power supply compatible with ac and dc according to claim 1, wherein the backplane module, the ac module and the dc module all communicate with the host via a PMBUS protocol for monitoring the status of each module.
9. The ac-dc compatible redundant power supply of claim 1 wherein said high voltage ac voltage is 220V.
10. The ac-dc compatible redundant power supply of claim 1 wherein said wide dc voltage is 12V-72V wide dc voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120611572.9U CN215646209U (en) | 2021-03-25 | 2021-03-25 | Alternating current and direct current compatible redundant power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120611572.9U CN215646209U (en) | 2021-03-25 | 2021-03-25 | Alternating current and direct current compatible redundant power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060671A1 (en) * | 2022-09-24 | 2024-03-28 | 超聚变数字技术有限公司 | Cabinet server |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060671A1 (en) * | 2022-09-24 | 2024-03-28 | 超聚变数字技术有限公司 | Cabinet server |
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