CN114384993A - Power supply device and industrial personal computer - Google Patents

Power supply device and industrial personal computer Download PDF

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Publication number
CN114384993A
CN114384993A CN202210031009.3A CN202210031009A CN114384993A CN 114384993 A CN114384993 A CN 114384993A CN 202210031009 A CN202210031009 A CN 202210031009A CN 114384993 A CN114384993 A CN 114384993A
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CN
China
Prior art keywords
voltage conversion
conversion module
electrically connected
power supply
host
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CN202210031009.3A
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Chinese (zh)
Inventor
刘梦
孙超
陈代英
罗旭
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CRSC Research and Design Institute Group Co Ltd
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CRSC Research and Design Institute Group Co Ltd
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Priority to CN202210031009.3A priority Critical patent/CN114384993A/en
Publication of CN114384993A publication Critical patent/CN114384993A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The invention discloses a power supply device and an industrial personal computer. The power supply device comprises a first voltage conversion module, a second voltage conversion module, a third voltage conversion module and a switch module; the input end of the first voltage conversion module is connected with an alternating current power supply signal, the output end of the first voltage conversion module is electrically connected with the input end of the second voltage conversion module, the output end of the second voltage conversion module is electrically connected with a first power supply end of a host of the industrial personal computer, the first voltage conversion module is connected with the third voltage conversion module in parallel, the first voltage conversion module and the third voltage conversion module are used for converting the alternating current power supply signal into a first direct current voltage signal, and the second voltage conversion module is used for converting the first direct current voltage signal into a second direct current voltage signal; the switch module is used for controlling whether the first direct-current voltage signal supplies power to the host according to the control signal of the host; the power supply device and the host are positioned in a case of the industrial personal computer. The invention achieves the effect of improving the integration level of the industrial personal computer.

Description

Power supply device and industrial personal computer
Technical Field
The embodiment of the invention relates to the technical field of power supplies, in particular to a power supply device and an industrial personal computer.
Background
Along with the development of science and technology, the reliability requirement of network security products is higher and higher, and the size requirement of the network security products is more and more miniaturized on the premise of meeting the product performance.
The industrial computer at present is also more and more miniaturized, and the height of industrial computer is less, and machine case design is unreasonable for the power of industrial computer all sets up outside industrial computer machine case, leads to the integrated level of industrial computer lower.
Disclosure of Invention
The invention provides a power supply device and an industrial personal computer, which aim to improve the integration level of the industrial personal computer.
In a first aspect, an embodiment of the present invention provides a power supply apparatus, where the power supply apparatus includes a first voltage conversion module, a second voltage conversion module, a third voltage conversion module, and a switch module;
the input end of the first voltage conversion module is connected with an alternating current power supply signal, the output end of the first voltage conversion module is electrically connected with the input end of the second voltage conversion module, the output end of the second voltage conversion module is electrically connected with a first power supply end of a host of an industrial personal computer, the first voltage conversion module is connected with the third voltage conversion module in parallel, the first voltage conversion module and the third voltage conversion module are used for converting the alternating current power supply signal into a first direct current voltage signal, the second voltage conversion module is used for converting the first direct current voltage signal into a second direct current voltage signal and supplying power to the host according to the second direct current voltage signal;
the power supply end of the switch module is electrically connected with the output end of the second voltage conversion module, the control end of the switch module is electrically connected with the first end of the host, the input end of the switch module is electrically connected with the output end of the first voltage conversion module, the first output end of the switch module is electrically connected with the second power supply end of the host, and the switch module is used for controlling whether the first direct-current voltage signal supplies power to the host or not according to the control signal of the host;
the power supply device and the host are located in a case of the industrial personal computer.
Optionally, the first voltage conversion module includes a first voltage conversion unit and a first ideal diode circuit;
the input of first voltage conversion unit inserts alternating current power supply signal, the output of first voltage conversion unit with the input electricity of first ideal diode circuit is connected, the first output of first ideal diode circuit with switch module's input electricity is connected, the second output of first ideal diode circuit with the second end electricity of host computer is connected, first ideal diode circuit is used for detecting first direct current voltage signal, and when first direct current voltage signal is less than predetermineeing the voltage value, output under-voltage signal extremely the host computer.
Optionally, the first ideal diode circuit comprises: the monitoring circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a voltage stabilizing diode, a first transistor and a monitoring unit;
the first end of the first resistor is electrically connected with the output end of the first voltage conversion unit, the second end of the first resistor is electrically connected with the first end of the second resistor, and the second end of the first resistor is also electrically connected with the first end of the monitoring unit;
the second end of the second resistor is electrically connected with the second end of the monitoring unit through the first capacitor;
the second end of the monitoring unit is grounded through the second capacitor;
the second end of the second resistor is also electrically connected with the anode of the voltage stabilizing diode, and the cathode of the voltage stabilizing diode is electrically connected with the input end of the switch module;
the first end of the third capacitor is electrically connected with the output end of the first voltage conversion unit, and the second end of the third capacitor is electrically connected with the third end of the monitoring unit through the third resistor;
the fourth end of the monitoring unit is electrically connected with the anode of the voltage stabilizing diode through the fourth resistor;
a fifth end of the monitoring unit is electrically connected with a control end of the first transistor, a first end of the first transistor is electrically connected with an output end of the first voltage conversion unit, a second end of the first transistor is electrically connected with a cathode of the voltage regulator diode, and a second end of the first transistor is a first output end of the first ideal diode circuit;
a sixth end of the monitoring unit is electrically connected with the first end of the first transistor through the fourth capacitor;
a seventh end of the monitoring unit is electrically connected with a first end of the fifth capacitor, and a second end of the fifth capacitor is grounded through the sixth capacitor;
the first end of the first transistor is grounded through the seventh capacitor;
and the eighth end of the monitoring unit is electrically connected with the second end of the first transistor, and the ninth end of the monitoring unit is a second output end of the first ideal diode circuit.
Optionally, the third voltage conversion module includes a second voltage conversion unit and a second ideal diode circuit;
the input end of the second voltage conversion unit is electrically connected with the input end of the first voltage conversion unit, the output end of the second voltage conversion unit is electrically connected with the input end of the second ideal diode, and the output end of the second ideal diode circuit is electrically connected with the output end of the first ideal diode circuit.
Optionally, the power supply apparatus further includes a fourth voltage conversion module;
the fourth voltage conversion module is connected in parallel with the second voltage conversion module.
Optionally, the power supply apparatus further includes a fifth voltage conversion module;
the second output end of the switch module is electrically connected with the input end of the fifth voltage conversion module, the first output end of the fifth voltage conversion module is electrically connected with a third power supply end of the host, and the fifth voltage conversion module is used for converting the first direct-current voltage signal into a third direct-current voltage signal and supplying power to the host according to the third direct-current voltage signal;
the second output end of the fifth voltage conversion module is electrically connected with the third end of the host, and the fifth voltage conversion module is further used for outputting a first power-on completion signal to the host after converting the first direct-current voltage signal into a third direct-current voltage signal.
Optionally, the power supply apparatus further includes a sixth voltage conversion module;
the input end of the sixth voltage conversion module is electrically connected with the third output end of the switch module, the first output end of the sixth voltage conversion module is electrically connected with a fourth power supply end of the host, and the sixth voltage conversion module is used for converting the first direct-current voltage signal into a fourth direct-current voltage signal and supplying power to the host according to the fourth direct-current voltage signal;
the second output end of the sixth voltage conversion module is electrically connected with the fourth end of the host, and the sixth voltage conversion module is further used for converting the first direct-current voltage signal into a fourth direct-current voltage signal and then outputting a second electrifying completion signal to the host.
Optionally, the switch module includes a logic unit, a second transistor, a relay, a fifth resistor, a sixth resistor, an eighth capacitor, and a first diode;
the power end of the logic unit is electrically connected with the output end of the second voltage conversion module, the control end of the logic unit is electrically connected with the first end of the host, the control end of the logic unit is grounded through the fifth resistor, the power end of the logic unit is grounded through the eighth capacitor, the output end of the logic unit is electrically connected with the control end of the second transistor through the sixth resistor, and the logic unit is used for outputting a level signal to the second transistor according to a control signal of the host;
the first end of the second transistor is grounded, the second end of the second transistor is electrically connected with the first end of the relay, the first end of the relay is electrically connected with the second end of the relay through the first diode, the second end of the relay is electrically connected with the output end of the first voltage conversion module, the third end of the relay is electrically connected with the output end of the first voltage conversion module, the fourth end of the relay is electrically connected with the second power end of the host, and the second transistor is used for controlling the connection or disconnection between the third end of the relay and the fourth end of the relay according to the level signal.
Optionally, the height of the power supply device is less than or equal to 35 mm.
In a second aspect, an embodiment of the present invention further provides an industrial personal computer, where the industrial personal computer includes a chassis, a host disposed in the chassis, and any one of the power supply devices in the first aspect, where the power supply device is located in the chassis; and the power supply device is used for supplying power to the host according to the alternating current power supply signal.
According to the invention, the power supply device comprises a first voltage conversion module, a second voltage conversion module, a third voltage conversion module and a switch module, wherein the first voltage conversion module can convert an alternating current power supply signal into a first direct current voltage signal, and the second voltage conversion module can convert the first direct current voltage signal into a second direct current voltage signal so as to provide standby power supply for a host of the industrial personal computer, so that the standby state of the host can be maintained. And, the second direct current voltage signal that the second voltage conversion module outputs can also be for the switch module power supply, when the host computer needs to be changed over to operating condition from the standby state, the host computer can send the control signal of opening to the control end of switch module, after the control end of switch module received the control signal, switch module will be closed, make the first direct current voltage signal that first voltage conversion module outputs can supply power for the host computer through switch module, thereby maintain the normal work of host computer, make the host computer can control whether to supply power, when the host computer needs to work, just can control first voltage conversion module and supply power to the host computer, thereby controllable power supply has been realized, power consumption has been reached, effect of saving cost. The third voltage conversion module is connected with the first voltage conversion module in parallel, so that when any one of the third voltage conversion module and the first voltage conversion module breaks down, the other one can also carry out voltage conversion to supply power for the host, so that the host can normally work, reliable power supply is realized, and the power supply reliability of the power supply device is improved. And moreover, the height of the power supply device is small by controlling the heights of the first voltage conversion module, the second voltage conversion module, the third voltage conversion module and the switch module in the power supply device, so that the power supply device and a host of the industrial personal computer are both placed in a case of the industrial personal computer, and the integration level of the industrial personal computer is improved. The industrial personal computer solves the problem that the integration level of the industrial personal computer is low because the power supply of the industrial personal computer is arranged outside the industrial personal computer case, and achieves the effects of improving the integration level of the industrial personal computer and improving the power supply reliability of the power supply device.
Drawings
Fig. 1 is a schematic circuit diagram of a power supply device according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of another power supply device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first ideal diode circuit in a power supply device according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a switch module in a power supply device according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a first voltage converting unit in a power supply apparatus according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a third voltage converting unit in the power supply apparatus according to the embodiment of the present invention;
fig. 7 is a schematic circuit structure diagram of a fifth voltage conversion module in the power supply device according to the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic circuit diagram of a power supply apparatus according to an embodiment of the present invention, referring to fig. 1, the power supply apparatus includes a first voltage conversion module 110, a second voltage conversion module 120, a third voltage conversion module 130, and a switch module 140; the input end of the first voltage conversion module 110 is connected with an alternating current power supply signal V1, the output end A0 of the first voltage conversion module 110 is electrically connected with the input end M1 of the second voltage conversion module 120, the output end M2 of the second voltage conversion module 120 is electrically connected with the first power end H1 of the host 210 of the industrial personal computer, the first voltage conversion module 110 is connected with the third voltage conversion module 130 in parallel, the first voltage conversion module 110 and the third voltage conversion module 130 are used for converting the alternating current power supply signal V1 into a first direct current voltage signal, and the second voltage conversion module 120 is used for converting the first direct current voltage signal into a second direct current voltage signal and supplying power to the host 210 according to the second direct current voltage signal; the power end of the switch module 140 is electrically connected to the output end M2 of the second voltage conversion module 120, the control end of the switch module 140 is electrically connected to the first end F1 of the host 210, the input end of the switch module 140 is electrically connected to the output end a0 of the first voltage conversion module 110, the first output end N1 of the switch module 140 is electrically connected to the second power end H2 of the host 210, and the switch module 140 is configured to control whether the first dc voltage signal supplies power to the host 210 according to the control signal of the host 210; the power supply device and the host 210 are located in the case of the industrial personal computer.
Specifically, the first voltage conversion module 110 may convert the ac power signal V1 into a first dc voltage signal, the second voltage conversion module 120 may convert the first dc voltage signal into a second dc voltage signal to supply power to the host 210 of the industrial computer, the second voltage conversion module 120 is, for example, a voltage reduction module, and the second dc voltage signal may provide standby power for the host 210, so as to maintain the standby state of the host 210. Moreover, the second dc voltage signal output by the second voltage conversion module 120 may also supply power to the switch module 140, when the host 210 needs to be converted from the standby state to the operating state, the host 210 may send a control signal for turning on to the control terminal of the switch module 140, and after the control terminal of the switch module 140 receives the control signal, the switch module 140 is turned on, so that the first dc voltage signal output by the first voltage conversion module 110 may supply power to the host 210 through the switch module 140, thereby maintaining the normal operation of the host 210. After the host 210 finishes operating, the host 210 may send a disconnection control signal to the control terminal of the switch module 140, and the switch module 140 is disconnected, so that the first dc voltage signal output by the first voltage conversion module 110 no longer supplies power to the host 210, only the second dc voltage signal output by the second voltage conversion module 120 supplies power to the host 210, and the host 210 enters a standby state. The host 210 sends a control signal of on or off to the control terminal of the switch module 140, so that the host 210 can control whether to supply power, and when the host 210 needs to work, the first voltage conversion module 110 is controlled to supply power to the host 210, thereby realizing controllable power supply, and achieving the effects of reducing power consumption and saving cost.
In addition, the third voltage conversion module 130 is connected in parallel with the first voltage conversion module 110, both the first voltage conversion module 110 and the third voltage conversion module 130 can convert the ac power signal V1 into the first dc voltage signal, and by arranging the third voltage conversion module 130 to be connected in parallel with the first voltage conversion module 110, when any one of the third voltage conversion module 130 and the first voltage conversion module 110 fails, the other one can also perform voltage conversion, which supplies power to the host 210, so that the host 210 can normally operate, thereby realizing reliable power supply, and being beneficial to improving the power supply reliability of the power supply device.
In addition, the heights of the first voltage conversion module 110, the second voltage conversion module 120, the third voltage conversion module 130 and the switch module 140 in the power supply device are controlled, so that the height of the power supply device is small, the power supply device and the host 210 of the industrial personal computer are both placed in the case of the industrial personal computer, and the integration level of the industrial personal computer is improved.
Optionally, the height of the power supply device is less than or equal to 35 mm.
Specifically, by controlling the heights of the first voltage conversion module 110, the second voltage conversion module 120, the third voltage conversion module 130 and the switch module 140 in the power supply device, for example, the heights of the first voltage conversion module 110, the second voltage conversion module 120, the third voltage conversion module 130 and the switch module 140 can be reduced by selecting components packaged in a patch manner; the cooling fan in the power supply device can be removed, the through hole is formed in the printed circuit board of the power supply device to dissipate heat, or the cooling fins are arranged on the case to dissipate heat, so that the height of the power supply device is reduced, the height of the power supply device is smaller than or equal to 35mm, the power supply device can be placed in the case of the industrial personal computer together with the host, and the integration level of the industrial personal computer is improved.
According to the technical scheme, the power supply device comprises the first voltage conversion module, the second voltage conversion module, the third voltage conversion module and the switch module, the first voltage conversion module can convert an alternating current power supply signal into a first direct current voltage signal, the second voltage conversion module can convert the first direct current voltage signal into a second direct current voltage signal, standby power supply is provided for a host of the industrial personal computer, and therefore the standby state of the host can be maintained. And, the second direct current voltage signal that the second voltage conversion module outputs can also be for the switch module power supply, when the host computer needs to be changed over to operating condition from the standby state, the host computer can send the control signal of opening to the control end of switch module, after the control end of switch module received the control signal, switch module will be closed, make the first direct current voltage signal that first voltage conversion module outputs can supply power for the host computer through switch module, thereby maintain the normal work of host computer, make the host computer can control whether to supply power, when the host computer needs to work, just can control first voltage conversion module and supply power to the host computer, thereby controllable power supply has been realized, power consumption has been reached, effect of saving cost. The third voltage conversion module is connected with the first voltage conversion module in parallel, so that when any one of the third voltage conversion module and the first voltage conversion module breaks down, the other one can also carry out voltage conversion to supply power for the host, so that the host can normally work, reliable power supply is realized, and the power supply reliability of the power supply device is improved. And moreover, the height of the power supply device is small by controlling the heights of the first voltage conversion module, the second voltage conversion module, the third voltage conversion module and the switch module in the power supply device, so that the power supply device and a host of the industrial personal computer are both placed in a case of the industrial personal computer, and the integration level of the industrial personal computer is improved. The technical scheme of this embodiment has solved the power of industrial computer and has all set up outside industrial computer machine case, leads to the lower problem of the integrated level of industrial computer, has reached the effect that improves the integrated level of industrial computer, improves power supply unit's power supply reliability.
On the basis of the foregoing embodiment, fig. 2 is a schematic circuit structure diagram of another power supply device according to an embodiment of the present invention, and optionally, referring to fig. 2, the first voltage conversion module 110 includes a first voltage conversion unit 111 and a first ideal diode circuit 112; the input end of the first voltage conversion unit 111 is connected to the ac power signal V1, the output end a1 of the first voltage conversion unit 111 is electrically connected to the input end B1 of the first ideal diode circuit 112, the first output end B2 of the first ideal diode circuit 112 is electrically connected to the input end of the switch module 140, the second output end B3 of the first ideal diode circuit 112 is electrically connected to the second end F2 of the host 210, and the first ideal diode circuit 112 is configured to detect the first dc voltage signal and output an under-voltage signal to the host 210 when the first dc voltage signal is smaller than a preset voltage value.
Specifically, the first voltage conversion unit 111 may convert the ac power signal V1 into a first dc voltage signal, the first dc voltage signal is sent to the input end of the switch module 140 through the first ideal diode circuit 112, the first ideal diode circuit 112 may block a negative voltage signal that may exist in the first dc voltage signal, and the voltage drop loss of the first ideal diode circuit 112 is almost zero, which may ensure that the output first dc voltage signal meets the power supply requirement of the host 210. In addition, the first ideal diode circuit 112 may detect the first dc voltage signal, and output an under-voltage signal to the host 210 when the first dc voltage signal is smaller than a preset voltage value, so that the host 210 knows the power supply condition in time, and therefore take countermeasures in time, so as to ensure normal power supply of the power supply device to the host 210, and achieve the effect of improving the power supply reliability of the power supply device. Moreover, when the first direct-current voltage signal is too large, the host 210 can also know in time and take measures in time, so that the damage of the host 210 caused by the too large voltage is avoided, and the safety of the power supply device is improved.
Fig. 3 is a schematic structural diagram of a first ideal diode circuit in a power supply device according to an embodiment of the present invention, and optionally, referring to fig. 3, the first ideal diode circuit 112 includes: the monitoring circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a voltage stabilizing diode D1, a first transistor Q1 and a monitoring unit 1121; a first end of the first resistor R1 is electrically connected to the output end a1 of the first voltage conversion unit 111, a second end of the first resistor R1 is electrically connected to a first end of the second resistor R2, and a second end of the first resistor R1 is further electrically connected to a first end of the monitoring unit 1121; a second end of the second resistor R2 is electrically connected to a second end of the monitoring unit 1121 through a first capacitor C1; the second terminal of the monitoring unit 1121 is also grounded through a second capacitor C2; the second end of the second resistor R2 is also electrically connected to the anode of the zener diode D1, and the cathode of the zener diode D1 is electrically connected to the input terminal of the switch module 140; a first end of the third capacitor C3 is electrically connected to the output end a1 of the first voltage conversion unit 111, and a second end of the third capacitor C3 is electrically connected to a third end of the monitoring unit 1121 through a third resistor R3; a fourth end of the monitoring unit 1121 is electrically connected to an anode of the zener diode D1 through a fourth resistor R4; the fifth terminal of the monitoring unit 1121 is electrically connected to the control terminal of the first transistor Q1, the first terminal of the first transistor Q1 is electrically connected to the output terminal a1 of the first voltage conversion unit 111, the second terminal of the first transistor Q1 is electrically connected to the cathode of the zener diode D1, and the second terminal of the first transistor Q1 is the first output terminal B2 of the first ideal diode circuit 112; a sixth terminal of the monitoring unit 1121 is electrically connected to the first terminal of the first transistor Q1 through a fourth capacitor C4; a seventh terminal of the monitoring unit 1121 is electrically connected to a first terminal of a fifth capacitor C5, and a second terminal of the fifth capacitor C5 is grounded through a sixth capacitor C6; a first terminal of the first transistor Q1 is grounded through a seventh capacitor C7; the eighth terminal of the monitoring unit 1121 is electrically connected to the second terminal of the first transistor Q1, and the ninth terminal of the monitoring unit 1121 is the second output terminal B3 of the first ideal diode circuit 112.
Specifically, the monitoring unit 1121 may detect the first direct-current voltage signal, and when the first direct-current voltage signal is smaller than the preset voltage value, the ninth end of the monitoring unit 1121 may output an under-voltage signal to the host 210, so that the host 210 timely knows the power supply condition, and timely takes countermeasures, thereby ensuring normal power supply of the power supply device to the host 210, and achieving an effect of improving the power supply reliability of the power supply device. Moreover, when the first direct-current voltage signal is too large, the host 210 can also know in time and take measures in time, so that the damage of the host 210 caused by the too large voltage is avoided, and the safety of the power supply device is improved. The second terminal of the first Transistor Q1 can output a first dc voltage signal, and the first Transistor Q1 can be, for example, a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), or other transistors, which is not limited herein.
Alternatively, referring to fig. 2, the third voltage conversion module 130 includes a second voltage conversion unit 131 and a second ideal diode circuit 132; an input terminal of the second voltage converting unit 131 is electrically connected to an input terminal of the first voltage converting unit 111, an output terminal of the second voltage converting unit 131 is electrically connected to an input terminal of the second ideal diode 132, and an output terminal of the second ideal diode circuit 132 is electrically connected to an output terminal of the first ideal diode circuit 112.
Specifically, the second voltage conversion unit 131 may convert the ac power signal V1 into a first dc voltage signal, the first dc voltage signal is sent to the input end of the switch module 140 through the second ideal diode circuit 132, the second ideal diode circuit 132 may block a negative voltage signal that may exist in the first dc voltage signal, and the voltage drop loss of the second ideal diode circuit 132 is almost zero, which may ensure that the output first dc voltage signal meets the power supply requirement of the host 210. In addition, the second ideal diode circuit 132 may detect the first dc voltage signal, and output an under-voltage signal to the host 210 when the first dc voltage signal is smaller than a preset voltage value, so that the host 210 knows the power supply condition in time, and thus take countermeasures in time. The output end of the first ideal diode circuit 112 is connected to the output end of the second ideal diode circuit 132, so that two paths of first direct-current voltage signals can be collected into one path and output to the input end of the switch module 140. By providing the first ideal diode circuit 112 and the second ideal diode circuit 132, both the first ideal diode circuit 112 and the second ideal diode circuit 132 can detect the first direct-current voltage signal, and the reliability of power supply of the power supply device can be further improved. And the first ideal diode circuit 112 and the second ideal diode circuit 132 have no voltage drop loss, so that the output first direct-current voltage signal can be ensured to meet the power supply requirement of the host 210, and the effect of improving the power supply reliability of the power supply device is achieved.
Optionally, referring to fig. 2, the power supply apparatus further includes a fourth voltage conversion module 150; the fourth voltage conversion module 150 is connected in parallel with the second voltage conversion module 120.
Specifically, by arranging the fourth voltage conversion module 150 in parallel with the second voltage conversion module 120, the fourth voltage conversion module 150 can also convert the first dc voltage signal into the second dc voltage signal, and therefore, when any one of the fourth voltage conversion module 150 and the second voltage conversion module 120 fails, the other one can also convert the first dc voltage signal into the second dc voltage signal, thereby ensuring standby power supply to the host 210, achieving the effect of reliable power supply, and being beneficial to improving the power supply reliability of the power supply device.
Optionally, referring to fig. 2, the power supply apparatus further includes a fifth voltage conversion module 160; the second output terminal N2 of the switch module 140 is electrically connected to the input terminal of the fifth voltage conversion module 160, the first output terminal of the fifth voltage conversion module 160 is electrically connected to the third power terminal H3 of the host 210, and the fifth voltage conversion module 160 is configured to convert the first dc voltage signal into a third dc voltage signal and supply power to the host 210 according to the third dc voltage signal; the second output end of the fifth voltage conversion module 160 is electrically connected to the third end F3 of the host 210, and the fifth voltage conversion module 160 is further configured to convert the first dc voltage signal into a third dc voltage signal and output a first power-on completion signal to the host 210.
Specifically, the fifth voltage conversion module 160 may convert the first direct-current voltage signal into a third direct-current voltage signal, and supply power to the host 210 by using the third direct-current voltage signal, where the first direct-current voltage signal is, for example, a direct-current voltage of 12V, the third direct-current voltage signal is, for example, a direct-current voltage of 5V, and the first direct-current voltage signal and the third direct-current voltage signal may supply power to different devices in the host 210, so as to meet the power supply requirement of the host 210. And after the fifth voltage conversion module 160 completes the voltage conversion, the first power-on completion signal is output to the host 210, so that the host 210 knows the power-on state, and the reliability of power supply to the host 210 can be further improved, that is, the effect of improving the reliability of power supply of the power supply device is achieved. The first output end N1 of the switch module 140 and the second output end N2 of the switch module 140 are, for example, the same end.
Optionally, referring to fig. 2, the power supply apparatus further includes a sixth voltage conversion module 170; the input end of the sixth voltage converting module 170 is electrically connected to the third output end N3 of the switch module 140, the first output end of the sixth voltage converting module 170 is electrically connected to the fourth power end H4 of the host 210, and the sixth voltage converting module 170 is configured to convert the first dc voltage signal into a fourth dc voltage signal and supply power to the host 210 according to the fourth dc voltage signal; the second output end of the sixth voltage conversion module 170 is electrically connected to the fourth end F4 of the host 210, and the sixth voltage conversion module 170 is further configured to convert the first dc voltage signal into a fourth dc voltage signal and output a second power-on completion signal to the host 210.
Specifically, the sixth voltage conversion module 170 may convert the first direct-current voltage signal into a fourth direct-current voltage signal, and supply power to the host 210 by using the fourth direct-current voltage signal, where the fourth direct-current voltage signal is, for example, a direct-current voltage of 3.3V, and the first direct-current voltage signal, the third direct-current voltage signal, and the fourth direct-current voltage signal may supply power to different devices in the host 210, so as to meet the power supply requirement of the host 210. And after the sixth voltage conversion module 170 completes the voltage conversion, the first power-on completion signal is output to the host 210, so that the host 210 knows the power-on state, and the reliability of power supply to the host 210 can be further improved. The first output terminal N1 of the switch module 140, the second output terminal N2 of the switch module 140 and the third output terminal N3 of the switch module 140 are, for example, the same terminal.
Fig. 4 is a schematic circuit structure diagram of a switch module in a power supply device according to an embodiment of the present invention, and optionally, referring to fig. 4, the switch module 140 includes a logic unit 141, a second transistor Q2, a relay K1, a fifth resistor R5, a sixth resistor R6, an eighth capacitor C8, and a first diode D2; the power end E2 of the logic unit 141 is electrically connected to the output end M2 of the second voltage conversion module 120, the control end E1 of the logic unit 141 is electrically connected to the first end F1 of the host 210, the control end E1 of the logic unit 141 is further grounded through a fifth resistor R5, the power end E2 of the logic unit 141 is further grounded through an eighth capacitor C8, the output end E3 of the logic unit 141 is electrically connected to the control end of the second transistor Q2 through a sixth resistor R6, and the logic unit 141 is configured to output a level signal to the second transistor Q2 according to a control signal of the host 210; the first end of the second transistor Q2 is grounded, the second end of the second transistor Q2 is electrically connected with the first end G1 of the relay K1, the first end G1 of the relay K1 is electrically connected with the second end G2 of the relay K1 through the first diode D2, the second end G2 of the relay K1 is electrically connected with the output end a0 of the first voltage conversion module 110, the third end G3 of the relay K1 is electrically connected with the output end a0 of the first voltage conversion module 110, the fourth end G4 of the relay K1 is electrically connected with the second power supply end H2 of the host 210, and the second transistor Q2 is used for controlling the connection or disconnection between the third end G3 of the relay K1 and the fourth end G4 of the relay K1 according to a level signal.
Specifically, when the host 210 needs to supply power, the host 210 sends an on control signal to the control terminal E1 of the logic unit 141, the logic unit 141 outputs a level signal corresponding to the on control signal to the control terminal of the second transistor Q2, the second transistor Q2 is turned on, and the first terminal of the second transistor Q2 is grounded, so that the potential of the second terminal of the second transistor Q2 is close to zero, so that the first terminal G1 and the second terminal G2 of the relay K1 are turned on, and the third terminal G3 and the fourth terminal G4 of the relay K1 are turned on, and the first dc voltage signal output by the first voltage conversion module 110 can be sent to the second power terminal H2 of the host 210 through the relay K1, thereby supplying power to the host 210. When the host 210 does not need to supply power, the host 210 sends an off control signal to the logic unit 141, the logic unit 141 outputs a level signal corresponding to the off control signal to the control terminal of the second transistor Q2, the second transistor Q2 is turned off, and the first terminal G1 and the second terminal G2 of the relay K1 are turned off, so that the third terminal G3 and the fourth terminal G4 of the relay K1 are turned off, and the first dc voltage signal output by the first voltage conversion module 110 is not sent to the second power terminal H2 of the host 210. The host 210 sends a control signal to the logic unit 141 to control the relay K1, so as to control the power supply of the power supply device, thereby improving the reliability of the power supply device.
Alternatively, referring to fig. 2, the second voltage conversion module 120 includes a third voltage conversion unit 121 and a second diode D3, an input terminal of the third voltage conversion unit 121 is an input terminal M1 of the second voltage conversion module 120, an output terminal of the third voltage conversion unit 121 is electrically connected to an anode of the second diode D3, and a cathode of the second diode D3 is an output terminal M2 of the second voltage conversion module 120; the fourth voltage conversion module 150 includes a fourth voltage conversion unit 151 and a third diode D4, an input terminal of the fourth voltage conversion unit 151 is an input terminal of the fourth voltage conversion module 150, an output terminal of the fourth voltage conversion unit 151 is electrically connected to an anode of the third diode D4, and a cathode of the third diode D4 is an output terminal of the fourth voltage conversion module 150.
Fig. 5 is a schematic circuit structure diagram of a first voltage conversion unit in a power supply device according to an embodiment of the present invention, and optionally, referring to fig. 5, the first voltage conversion unit 111 includes a first voltage conversion chip 1111 and peripheral circuits thereof, the peripheral circuits of the first voltage conversion chip 1111 include a first fuse J1, a second fuse J2, a thermistor R7, a ninth capacitor C9, a tenth capacitor C10 and an eleventh capacitor C11, in fig. 5, terminals V11, V12 and V13 are three terminals of an ac power signal V1, a terminal V11 represents a connection terminal of a live line of the ac power signal V1, a terminal V12 represents a connection terminal of a neutral line of the ac power signal V1, and a terminal V13 represents a connection terminal of a ground line of the ac power signal V1.
Fig. 6 is a schematic circuit structure diagram of a third voltage conversion unit in the power supply device according to the embodiment of the present invention, and optionally, referring to fig. 6, the third voltage conversion unit 131 includes a second voltage conversion chip 1311 and peripheral circuits thereof, and the peripheral circuits of the second voltage conversion chip 1311 include a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a fifteenth capacitor C15, a sixteenth capacitor C16, a seventeenth capacitor C17, an eighth resistor R8, a ninth resistor R9, and a fourth diode D5.
Fig. 7 is a schematic circuit structure diagram of a fifth voltage conversion module in a power supply device according to an embodiment of the present invention, and optionally, referring to fig. 7, the fifth voltage conversion module 160 includes a third voltage conversion chip 161 and a peripheral circuit thereof, the peripheral circuit of the third voltage conversion chip 161 includes a third fuse J3, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, an eighteenth capacitor C18, a nineteenth capacitor C19, a twentieth capacitor C2, a first capacitor C56, a twenty-third capacitor C828653, a twenty-third capacitor C86 22, a twenty-third capacitor C23, a tenth capacitor C, a tenth capacitor R8427, a fourth resistor R9, a sixth resistor R9, a fourth resistor R, A twenty-fourth capacitor C24, a twenty-fifth capacitor C25, a twenty-sixth capacitor C26, a twenty-seventh capacitor C27, a twenty-eighth capacitor C28, a twenty-ninth capacitor C29, a thirty-sixth capacitor C30, a thirty-eleventh capacitor C31, a thirty-second capacitor C32, a thirty-third capacitor C33, a thirty-fourth capacitor C34, a thirty-fifth capacitor C35, a thirty-sixth capacitor C36, an inductor L1, a third transistor Q3 and a fourth transistor Q4.
The embodiment also provides an industrial personal computer, which comprises a case, a host 210 arranged in the case and a power supply device according to any one of the above embodiments, wherein the power supply device is arranged in the case; the power supply device is used for supplying power to the host according to the alternating current power supply signal.
Specifically, power supply unit can convert alternating current power supply signal to for host computer 210 supplies power, and through the height of first voltage conversion module 110, second voltage conversion module 120, third voltage conversion module 130 and switch module 140 among the control power supply unit, make power supply unit's height less, make power supply unit and the host computer 210 of industrial computer all place at the quick-witted incasement of industrial computer, improved the integrated level of industrial computer.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A power supply device is characterized by comprising a first voltage conversion module, a second voltage conversion module, a third voltage conversion module and a switch module;
the input end of the first voltage conversion module is connected with an alternating current power supply signal, the output end of the first voltage conversion module is electrically connected with the input end of the second voltage conversion module, the output end of the second voltage conversion module is electrically connected with a first power supply end of a host of an industrial personal computer, the first voltage conversion module is connected with the third voltage conversion module in parallel, the first voltage conversion module and the third voltage conversion module are used for converting the alternating current power supply signal into a first direct current voltage signal, the second voltage conversion module is used for converting the first direct current voltage signal into a second direct current voltage signal and supplying power to the host according to the second direct current voltage signal;
the power supply end of the switch module is electrically connected with the output end of the second voltage conversion module, the control end of the switch module is electrically connected with the first end of the host, the input end of the switch module is electrically connected with the output end of the first voltage conversion module, the first output end of the switch module is electrically connected with the second power supply end of the host, and the switch module is used for controlling whether the first direct-current voltage signal supplies power to the host or not according to the control signal of the host;
the power supply device and the host are located in a case of the industrial personal computer.
2. The power supply device according to claim 1, wherein the first voltage conversion module includes a first voltage conversion unit and a first ideal diode circuit;
the input of first voltage conversion unit inserts alternating current power supply signal, the output of first voltage conversion unit with the input electricity of first ideal diode circuit is connected, the first output of first ideal diode circuit with switch module's input electricity is connected, the second output of first ideal diode circuit with the second end electricity of host computer is connected, first ideal diode circuit is used for detecting first direct current voltage signal, and when first direct current voltage signal is less than predetermineeing the voltage value, output under-voltage signal extremely the host computer.
3. The power supply device of claim 2, wherein the first ideal diode circuit comprises: the monitoring circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a voltage stabilizing diode, a first transistor and a monitoring unit;
the first end of the first resistor is electrically connected with the output end of the first voltage conversion unit, the second end of the first resistor is electrically connected with the first end of the second resistor, and the second end of the first resistor is also electrically connected with the first end of the monitoring unit;
the second end of the second resistor is electrically connected with the second end of the monitoring unit through the first capacitor;
the second end of the monitoring unit is grounded through the second capacitor;
the second end of the second resistor is also electrically connected with the anode of the voltage stabilizing diode, and the cathode of the voltage stabilizing diode is electrically connected with the input end of the switch module;
the first end of the third capacitor is electrically connected with the output end of the first voltage conversion unit, and the second end of the third capacitor is electrically connected with the third end of the monitoring unit through the third resistor;
the fourth end of the monitoring unit is electrically connected with the anode of the voltage stabilizing diode through the fourth resistor;
a fifth end of the monitoring unit is electrically connected with a control end of the first transistor, a first end of the first transistor is electrically connected with an output end of the first voltage conversion unit, a second end of the first transistor is electrically connected with a cathode of the voltage regulator diode, and a second end of the first transistor is a first output end of the first ideal diode circuit;
a sixth end of the monitoring unit is electrically connected with the first end of the first transistor through the fourth capacitor;
a seventh end of the monitoring unit is electrically connected with a first end of the fifth capacitor, and a second end of the fifth capacitor is grounded through the sixth capacitor;
the first end of the first transistor is grounded through the seventh capacitor;
and the eighth end of the monitoring unit is electrically connected with the second end of the first transistor, and the ninth end of the monitoring unit is a second output end of the first ideal diode circuit.
4. The power supply device according to claim 2, wherein the third voltage conversion module includes a second voltage conversion unit and a second ideal diode circuit;
the input end of the second voltage conversion unit is electrically connected with the input end of the first voltage conversion unit, the output end of the second voltage conversion unit is electrically connected with the input end of the second ideal diode, and the output end of the second ideal diode circuit is electrically connected with the output end of the first ideal diode circuit.
5. The power supply device according to claim 2, further comprising a fourth voltage conversion module;
the fourth voltage conversion module is connected in parallel with the second voltage conversion module.
6. The power supply device according to claim 1, further comprising a fifth voltage conversion module;
the second output end of the switch module is electrically connected with the input end of the fifth voltage conversion module, the first output end of the fifth voltage conversion module is electrically connected with a third power supply end of the host, and the fifth voltage conversion module is used for converting the first direct-current voltage signal into a third direct-current voltage signal and supplying power to the host according to the third direct-current voltage signal;
the second output end of the fifth voltage conversion module is electrically connected with the third end of the host, and the fifth voltage conversion module is further used for outputting a first power-on completion signal to the host after converting the first direct-current voltage signal into a third direct-current voltage signal.
7. The power supply device according to claim 1, further comprising a sixth voltage conversion module;
the input end of the sixth voltage conversion module is electrically connected with the third output end of the switch module, the first output end of the sixth voltage conversion module is electrically connected with a fourth power supply end of the host, and the sixth voltage conversion module is used for converting the first direct-current voltage signal into a fourth direct-current voltage signal and supplying power to the host according to the fourth direct-current voltage signal;
the second output end of the sixth voltage conversion module is electrically connected with the fourth end of the host, and the sixth voltage conversion module is further used for converting the first direct-current voltage signal into a fourth direct-current voltage signal and then outputting a second electrifying completion signal to the host.
8. The power supply device according to claim 1, wherein the switch module includes a logic unit, a second transistor, a relay, a fifth resistor, a sixth resistor, an eighth capacitor, and a first diode;
the power end of the logic unit is electrically connected with the output end of the second voltage conversion module, the control end of the logic unit is electrically connected with the first end of the host, the control end of the logic unit is grounded through the fifth resistor, the power end of the logic unit is grounded through the eighth capacitor, the output end of the logic unit is electrically connected with the control end of the second transistor through the sixth resistor, and the logic unit is used for outputting a level signal to the second transistor according to a control signal of the host;
the first end of the second transistor is grounded, the second end of the second transistor is electrically connected with the first end of the relay, the first end of the relay is electrically connected with the second end of the relay through the first diode, the second end of the relay is electrically connected with the output end of the first voltage conversion module, the third end of the relay is electrically connected with the output end of the first voltage conversion module, the fourth end of the relay is electrically connected with the second power end of the host, and the second transistor is used for controlling the connection or disconnection between the third end of the relay and the fourth end of the relay according to the level signal.
9. The power supply device according to claim 1, wherein a height of the power supply device is less than or equal to 35 mm.
10. An industrial personal computer, which is characterized by comprising a case, a host arranged in the case and a power supply device according to any one of claims 1 to 9, wherein the power supply device is arranged in the case; and the power supply device is used for supplying power to the host according to the alternating current power supply signal.
CN202210031009.3A 2022-01-12 2022-01-12 Power supply device and industrial personal computer Pending CN114384993A (en)

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CN202210031009.3A CN114384993A (en) 2022-01-12 2022-01-12 Power supply device and industrial personal computer

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CN202210031009.3A CN114384993A (en) 2022-01-12 2022-01-12 Power supply device and industrial personal computer

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0515689U (en) * 1991-03-01 1993-02-26 横河電機株式会社 Redundant parallel operation power supply
US20020062454A1 (en) * 2000-09-27 2002-05-23 Amphus, Inc. Dynamic power and workload management for multi-server system
CN101533303A (en) * 2008-03-12 2009-09-16 鸿富锦精密工业（深圳）有限公司 Switch power supply circuit with power saving function
US20090230902A1 (en) * 2007-09-28 2009-09-17 Mitsubishi Heavy Industries, Ltd. Inverter system for vehicle-mounted air conditioner
CN214205315U (en) * 2020-12-31 2021-09-14 深圳市世纪创新显示电子有限公司 Circuit for reducing standby and shutdown power of display

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0515689U (en) * 1991-03-01 1993-02-26 横河電機株式会社 Redundant parallel operation power supply
US20020062454A1 (en) * 2000-09-27 2002-05-23 Amphus, Inc. Dynamic power and workload management for multi-server system
US20090230902A1 (en) * 2007-09-28 2009-09-17 Mitsubishi Heavy Industries, Ltd. Inverter system for vehicle-mounted air conditioner
CN101533303A (en) * 2008-03-12 2009-09-16 鸿富锦精密工业（深圳）有限公司 Switch power supply circuit with power saving function
CN214205315U (en) * 2020-12-31 2021-09-14 深圳市世纪创新显示电子有限公司 Circuit for reducing standby and shutdown power of display

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