CN220492848U - Power output conversion device - Google Patents
Power output conversion device Download PDFInfo
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- CN220492848U CN220492848U CN202322086322.XU CN202322086322U CN220492848U CN 220492848 U CN220492848 U CN 220492848U CN 202322086322 U CN202322086322 U CN 202322086322U CN 220492848 U CN220492848 U CN 220492848U
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Abstract
The utility model relates to the technical field of desktop power supplies, and discloses a power supply output conversion device, which comprises: the power supply comprises a single-path power supply, a voltage stabilizing input selection circuit, a voltage stabilizing circuit, a multi-path voltage output circuit and a time sequence control circuit, wherein a single-path power supply output power supply signal is transmitted to the voltage stabilizing input selection circuit and the multi-path voltage output circuit, the voltage stabilizing input selection circuit generates a port signal according to an input port of the power supply signal, and the voltage stabilizing circuit converts the power supply signal into a voltage stabilizing power supply signal according to the port signal and then transmits the voltage stabilizing power supply signal to the time sequence control circuit and an external computer main board; the time sequence control circuit generates a time sequence control signal according to the enabling signal of the multi-path voltage output circuit, and controls the multi-path voltage output circuit to convert the power supply signal into different voltage classes according to the time sequence control signal so as to provide multi-path power supply for the external computer main board. The utility model solves the problem that the power output and the signal output of a single-path power supply and a multi-path power supply in the prior art cannot be used compatibly.
Description
Technical Field
The utility model relates to the technical field of desktop power supplies, in particular to a power supply output conversion device.
Background
The current desktop power supply is divided into two output modes, namely a multi-path power supply and a 12V single-path power supply, wherein the two power supplies are different from a computer main board in power supply and signal time sequence, and the computer main board using the multi-path power supply cannot use the single-path power supply to supply power, otherwise, the compatibility is limited to a certain extent. The current standard ATX (Advanced Technology Extended, motherboard specification) desktop motherboard multi-channel POWER outputs +12v, +5v, +3.3v, and +5vsb (V Standby voltage), and signals output ps_on (POWER Supply-ON) and pwr_ok (POWER normal signal). However, the single-channel desktop power supply is generally applied to a commercial desktop scene, and most of the desktop power supplies are customized by computer brands, and the output is not completely defined according to intel standards.
Because the single-channel power supply and the multi-channel power supply have large differences between power output and signal output and cannot be used in a compatible manner, a conversion device which can be used for enabling the single-channel power supply and the multi-channel power supply to be used in a compatible manner is needed.
Disclosure of Invention
In view of this, the present utility model provides a power output conversion device to solve the problem that in the prior art, the single-channel power source and the multi-channel power source cannot be used compatibly in power output and signal output.
In a first aspect, the present utility model provides a power output conversion apparatus, the apparatus comprising: the device comprises a single-path power supply, a voltage stabilizing input selection circuit, a voltage stabilizing circuit, a multipath voltage output circuit and a time sequence control circuit;
the first end and the second end of the single-channel power supply are connected with one end of the voltage stabilizing input selecting circuit, and the other end of the voltage stabilizing input selecting circuit is respectively connected with one end of the voltage stabilizing circuit and the first end of the multi-channel voltage output circuit;
one end of the time sequence control circuit is respectively connected with the other end of the voltage stabilizing circuit, the second end of the multi-path voltage output circuit and the third end of the single-path power supply; the other end of the time sequence control circuit and the third end of the multi-path voltage output circuit are connected with an external computer main board;
the single-channel power supply outputs a power supply signal to be transmitted to the voltage-stabilizing input selection circuit and the multi-channel voltage output circuit, the voltage-stabilizing input selection circuit generates a port signal according to an input port of the power supply signal, the port signal and the power supply signal are transmitted to the voltage-stabilizing circuit, and the voltage-stabilizing circuit converts the power supply signal into a voltage-stabilizing power supply signal according to the port signal and then transmits the voltage-stabilizing power supply signal to the time sequence control circuit and the external computer main board to supply power for the time sequence control circuit and the external computer main board;
enabling signals of the multipath voltage output circuits are transmitted to the time sequence control circuit;
the power supply signal is converted into different voltage classes by the multi-path voltage output circuit to provide multi-path power supply for the external computer main board.
The power output conversion device provided by the embodiment of the utility model has the advantages that the voltage stabilizing circuit converts the power supply signal into the voltage stabilizing power supply signal according to the port signal and then transmits the voltage stabilizing power supply signal to the time sequence control circuit and the external computer main board to supply power for the time sequence control circuit and the external computer main board, the time sequence control circuit controls the multi-path voltage output circuit to convert the single-path power supply signal into different voltage levels according to the time sequence control signal to provide multi-path power supply for the external computer main board, the compatibility of the single-path power supply and the computer main board is enhanced, the compatible use of the power output and the signal output of the single-path power supply and the multi-path power supply is realized, and the problem that the power output and the signal output of the single-path power supply and the multi-path power supply cannot be compatible used in the prior art is solved.
In an alternative embodiment, the single-pass power supply includes a first power supply input, a second power supply input, and a first signal output port;
the first end of the single-path power supply is a first power supply input end, the second end of the single-path power supply is a second power supply input end, and the third end of the single-path power supply is a first signal output port;
the first power input end or the second power input end outputs a power signal and transmits the power signal to the voltage stabilizing input selection circuit and the multipath voltage output circuit;
the first signal output port outputs a starting trigger signal and transmits the starting trigger signal to the time sequence control circuit;
the single-path power supply is grounded.
The power output conversion device provided by the embodiment of the utility model outputs the power signal to be transmitted to the voltage stabilizing input selection circuit and the multi-path voltage output circuit through the first power input end or the second power input end of the single-path power supply, and the first signal output port outputs the starting trigger signal to be transmitted to the time sequence control circuit, so that the signal transmission of the single-path power supply and the voltage stabilizing input selection circuit, the multi-path voltage output circuit and the time sequence control circuit is realized, a basis is provided for converting the power signal of the single-path power supply into the multi-path power supplies with different voltage levels, the single-path power supply is grounded, the fault current is conducted underground through the grounding wire when the fault occurs, and the single-path power supply is protected from being damaged.
In an alternative embodiment, the voltage stabilizing input selecting circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a field effect transistor and a first triode;
one end of the first resistor is respectively connected with the first power input end, the drain electrode of the field effect transistor and the first end of the multi-path voltage output circuit; the other end of the first resistor is respectively connected with one end of the second resistor, the grid electrode of the field effect transistor and the collector electrode of the first triode; the other end of the first resistor, one end of the second resistor, the grid electrode of the field effect transistor and the connection point of the collector electrode of the first triode form a first common point;
one end of the third resistor is connected with the second power input end and one end of the voltage stabilizing circuit respectively; the other end of the third resistor is respectively connected with one end of the fourth resistor and the base electrode of the first triode, and the connection point of the other end of the third resistor, one end of the fourth resistor and the base electrode of the first triode forms a second common point;
the other end of the fourth resistor, the emitter of the first triode and the other end of the second resistor are grounded.
The power output conversion device provided by the embodiment of the utility model automatically judges the output port of the power signal through the first resistor, the second resistor, the third resistor, the fourth resistor, the field effect transistor and the first triode of the voltage stabilizing input selection circuit, and provides a judging basis for the input voltage of the voltage stabilizing circuit.
In an alternative embodiment, the multi-path voltage output circuit includes a +12V switching circuit, +5V buck circuit, +3.3V buck circuit, and a-12V conversion circuit;
one end of the +12V switching circuit, one end of the +5V step-down circuit, one end of the +3.3V step-down circuit and one end of the-12V conversion circuit are used as first ends of the multi-path voltage output circuit;
the other end of the +12V switch circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are used as third ends of the multi-path voltage output circuit;
one end of the +12V switching circuit, one end of the +5V step-down circuit, one end of the +3.3V step-down circuit and one end of the-12V conversion circuit are connected with the first power input end, one end of the first resistor and the drain electrode of the field effect transistor; the other end of the +12V switch circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are all connected with an external computer main board; the enabling pins of the +12V switching circuit, +5V step-down circuit, +3.3V step-down circuit and the-12V conversion circuit are used as the second ends of the multi-path voltage output circuit;
the +12V switching circuit, +5V step-down circuit, +3.3V step-down circuit and-12V conversion circuit each include an enable pin, each of which is connected to the timing control circuit.
In an alternative embodiment, the +12V switching circuit, +5V buck circuit, +3.3V buck circuit, and the-12V conversion circuit are all grounded.
According to the power output conversion device provided by the embodiment of the utility model, the enabling pins of the +12V switching circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit of the multi-path voltage output circuit are connected with the time sequence control circuit, and the time sequence control circuit can control the power supply signals of the single-path power supply to be converted into different voltage grades according to the function of the enabling pins, so that the control mode is simple and easy to implement.
In an alternative embodiment, the timing control circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a second triode, and a control chip;
one end of the fifth resistor is connected with the collector electrode of the second triode, and the other end of the fifth resistor is respectively connected with one end of the sixth resistor and one end of the ninth resistor; one end of the sixth resistor is also connected with the other end of the voltage stabilizing circuit; the other end of the sixth resistor is respectively connected with one end of the ninth resistor, the base electrode of the second triode and the control chip; the other end of the ninth resistor is connected with the control chip;
the emitter of the second triode is respectively connected with the ground and the control chip;
one end of the seventh resistor is connected with the other end of the +12V switching circuit, and the other end of the seventh resistor is connected with one end of the eighth resistor; the other end of the eighth resistor is connected with the control chip.
According to the power output conversion device provided by the embodiment of the utility model, the time sequence control signal of the computer multipath power supply can be generated through the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the second triode, the control chip and the connection relation of the time sequence control circuit, and meanwhile, the control chip monitors the output multipath power supply voltage, so that a communication basis is provided for providing multipath power supply for an external computer main board.
In an alternative embodiment, the control chip includes a first pin, a second pin, a third pin, and a fourth pin;
the first pin is connected with the other end of the fifth resistor and one end of the eighth resistor respectively; the second pin is connected with the other end of the eighth resistor and the emitter of the second triode respectively; the third pin is connected with the other end of the sixth resistor and the base electrode of the second triode respectively; the fourth pin is respectively connected with enabling pins of the +12V switch circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit through a ninth resistor and a fifth resistor in sequence;
the fourth pin is also respectively connected with the first signal output port of the external single-path power supply and the external computer main board.
In an alternative embodiment, the control chip further includes a fifth pin, a sixth pin, and a seventh pin, and the timing control circuit further includes a first diode and a second diode;
the fifth pin is connected with the other end of the +3.3V voltage reduction circuit, the sixth pin is connected with the other end of the +5V voltage reduction circuit, and the cathode of the first diode and the cathode of the second diode are both connected to the seventh pin; the anode of the first diode is connected with the other end of the +12V switching circuit; the anode of the second diode is connected with the other end of the voltage stabilizing circuit.
In an alternative embodiment, the control chip further comprises an eighth pin; the eighth pin is connected with the external computer motherboard.
The power supply output conversion device provided by the embodiment of the utility model realizes the connection and signal transmission between the first pin, the second pin, the third pin and the fourth pin of the control chip and the voltage stabilizing input selection circuit, the voltage stabilizing circuit and one end of the multi-path voltage output circuit and the enabling pin, realizes the connection and multi-path power supply signal transmission between the other end of the multi-path voltage output circuit through the fifth pin, the sixth pin and the seventh pin of the control chip, and ensures the normal multi-path power supply output reaching the external computer main board through the eighth pin of the control chip.
In an alternative embodiment, the voltage regulator circuit is grounded.
According to the power output conversion device provided by the embodiment of the utility model, the voltage stabilizing circuit is grounded, so that the safety of the voltage stabilizing circuit is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a power output conversion apparatus according to an embodiment of the present utility model;
FIG. 2 is a block diagram of another power output conversion apparatus according to an embodiment of the present utility model;
FIG. 3 is a timing diagram showing the normal output of pins of the control chip ICI in the timing control circuit according to an embodiment of the present utility model;
fig. 4 is a timing chart of the control chip ICI fifth PIN5, sixth PIN6, seventh PIN7 in the timing control circuit according to an embodiment of the present utility model;
fig. 5 is a timing chart of undervoltage of the control chip ICI fifth PIN5, sixth PIN6, and seventh PIN7 in the timing control circuit according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In this embodiment, a power output conversion device is provided, fig. 1 is a block diagram of a power output conversion device according to an embodiment of the present utility model, and as shown in fig. 1, the device includes:
a single-path power supply 11, a voltage stabilizing input selection circuit 12, a voltage stabilizing circuit 13, a multi-path voltage output circuit 14 and a time sequence control circuit 15; the first end and the second end of the single-channel power supply 11 are connected with one end of the voltage stabilizing input selecting circuit 12, and the other end of the voltage stabilizing input selecting circuit 12 is connected with one end of the voltage stabilizing circuit 13 and the first end of the multi-channel voltage output circuit 14 respectively; one end of the time sequence control circuit 15 is respectively connected with the other end of the voltage stabilizing circuit, the second end of the multi-path voltage output circuit 14 and the third end of the single-path power supply; the other end of the timing control circuit 15 and the third end of the multi-path voltage output circuit 14 are connected to the external computer motherboard 16.
The single-channel power supply 11 outputs a power supply signal to be transmitted to the voltage stabilizing input selecting circuit 12 and the multi-channel voltage output circuit 14, the voltage stabilizing input selecting circuit 12 generates a port signal according to an input port of the power supply signal, the port signal and the power supply signal are transmitted to the voltage stabilizing circuit 13, the voltage stabilizing circuit 13 converts the power supply signal into a voltage stabilizing power supply signal according to the port signal and then transmits the voltage stabilizing power supply signal to the time sequence control circuit 15 and the external computer main board 16, and the time sequence control circuit 15 and the external computer main board 16 are powered; the enable signal of the multi-path voltage output circuit 14 is transmitted to the timing control circuit 15; the single-channel power supply 11 outputs a startup trigger signal to transmit to the time sequence control circuit 15, the time sequence control circuit 15 generates a time sequence control signal according to the startup trigger signal and an enabling signal, and the multi-channel voltage output circuit 14 is controlled to convert the power supply signal into different voltage levels according to the time sequence control signal so as to provide multi-channel power supply for the external computer main board 16.
The power output conversion device provided by the embodiment of the utility model has the advantages that the voltage stabilizing circuit converts the power supply signal into the voltage stabilizing power supply signal according to the port signal and then transmits the voltage stabilizing power supply signal to the time sequence control circuit and the external computer main board to supply power for the time sequence control circuit and the external computer main board, the time sequence control circuit controls the multi-path voltage output circuit to convert the single-path power supply signal into different voltage levels according to the time sequence control signal to provide multi-path power supply for the external computer main board, the compatibility of the single-path power supply and the computer main board is enhanced, the compatible use of the power output and the signal output of the single-path power supply and the multi-path power supply is realized, and the problem that the power output and the signal output of the single-path power supply and the multi-path power supply cannot be compatible used in the prior art is solved.
In an alternative embodiment, the single-pass power supply 11 includes a first power supply input, a second power supply input, and a first signal output port; the first end of the single-path power supply 11 is a first power supply input end, the second end of the single-path power supply is a second power supply input end, and the third end of the single-path power supply 11 is a first signal output port; the first power input end or the second power input end outputs a power signal to be transmitted to the voltage stabilizing input selecting circuit 12 and the multipath voltage output circuit 14; the first signal output port outputs a start trigger signal to be transmitted to the time sequence control circuit 15; the single-circuit power supply 11 is grounded.
Specifically, a single-circuit power supply is taken as an example of a single-circuit power supply of a desktop computer, and the single-circuit power supply of the desktop computer is divided into 3 types:
1 st: the power output is only +12V, and the signal output is provided with a startup trigger signal PS_ON;
2 nd: the power output is +12V, +12VSB or +5VSB, and the signal output is a startup trigger signal PS_ON;
3 rd: the power output is +12V, +12VSB or +5VSB, and the signal output is a power-ON trigger signal PS_ON and a power-ON normal signal PWR_OK.
As shown in fig. 2, the first power input terminal of the single-path power supply is a +12vo input terminal, the second power input terminal is a +12vsb/+5vsb input terminal, and the first signal output terminal is a ps_on# -12 VO output terminal.
+12vo means that only +12v output voltage is supplied, VSB means standby voltage, which is a standard output of a multi-path power supply of a computer main board, a single-path power supply is manufactured to be 5V, called +5vsb, and a single-path power supply is manufactured to be 12V, called +12vsb. The first power input terminal, i.e., the +12vo input terminal or the second power input terminal, i.e., the +12vsb/+5vsb input terminal, outputs a power signal to the regulated input selection circuit 12 and the multi-path voltage output circuit 14; the first signal output port, namely the PS_ON# -12 VO output end outputs a start trigger signal to be transmitted to the time sequence control circuit. The single-path power supply is grounded.
In an alternative embodiment, the voltage stabilizing input selecting circuit 12 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a field effect transistor Q1, and a first triode Q2; one end of the first resistor R1 is respectively connected with the first power input end, the drain electrode of the Q1 field effect transistor and the first end of the multi-path voltage output circuit 14; the other end of the first resistor R1 is respectively connected with one end of the second resistor R2, the grid electrode of the field effect transistor Q1 and the collector electrode of the first triode; the other end of the first resistor R1, one end of the second resistor R2, and a connection point of the grid electrode of the field effect transistor Q1 and the collector electrode of the first triode Q2 form a first common point; one end of the third resistor R3 is respectively connected with the second power input end and one end of the voltage stabilizing circuit; the other end of the third resistor R3 is respectively connected with one end of the fourth resistor R4 and the base electrode of the first triode Q2, and a second common point is formed by the other end of the third resistor R3, one end of the fourth resistor R4 and the connecting point of the base electrode of the first triode Q2; the other end of the fourth resistor R4, the emitter of the first triode Q2 and the other end of the second resistor R2 are grounded.
Specifically, as shown in fig. 2, the voltage stabilizing input selecting circuit 12 is configured to automatically determine an output port of a power signal output by the single-path power supply, and provide a determination basis for an input voltage of the voltage stabilizing circuit, i.e., automatically determine whether the input terminal of the voltage stabilizing circuit is from +12vo or +12vsb/+5vsb. When the single-path power supply of the desktop computer is 1 st, the first triode Q2 is not conducted, the power supply signal of the +12VO input end drives the field effect transistor Q1 to be conducted through the first resistor R1 and the second resistor R2, and +12VO power supply signal input is provided for the voltage stabilizing circuit 13. When the single-path power supply of the desktop computer is 2 nd and 3 rd, the +12VSB/+5VSB input end comprises 12V/5V power supply signals, the 12V/5V power supply signals enable the first triode Q2 to be conducted through the third resistor R3, the field effect transistor Q1 is driven to be grounded and is not conducted, the +12VO does not provide power supply signal input for the voltage stabilizing circuit, the power supply signals of the voltage stabilizing circuit are only from the +12VSB/+5VSB input end, and the conflict between the +12VO and the +12VSB/+5VSB voltage input is avoided. The voltage stabilizing circuit converts 12V/5V into constant +5V to provide power for the control chip IC1 in the time sequence control circuit, and provides +5VSB voltage for the multipath power supply of the standard computer motherboard and standby voltage for the computer motherboard. The voltage stabilizing circuit is grounded.
In an alternative embodiment, as shown in FIG. 2, the multi-path voltage output circuit 14 includes a +12V switching circuit, +5V buck circuit, +3.3V buck circuit, and a-12V conversion circuit; one end of the +12V switching circuit, one end of the +5V step-down circuit, one end of the +3.3V step-down circuit and one end of the-12V conversion circuit are used as first ends of the multi-path voltage output circuit; the other end of the +12V switch circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are used as third ends of the multi-path voltage output circuit; one end of the +12V switching circuit, one end of the +5V step-down circuit, one end of the +3.3V step-down circuit and one end of the-12V conversion circuit are connected with the first power input end, one end of the first resistor and the drain electrode of the field effect transistor; the other end of the +12V switch circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are all connected with an external computer main board; the enabling pins of the +12V switching circuit, +5V step-down circuit, +3.3V step-down circuit and the-12V conversion circuit are used as the second ends of the multi-path voltage output circuit; the +12V switching circuit, +5V step-down circuit, +3.3V step-down circuit and-12V conversion circuit each include an enable pin, each of which is connected to the timing control circuit. The +12V switching circuit, +5V step-down circuit, +3.3V step-down circuit and-12V conversion circuit are all grounded.
As shown in fig. 2, specifically:
the +12V switching circuit provides +12V output voltage for the computer multipath power supply meeting the standard, and the time sequence control circuit controls whether +12VO of the computer multipath power supply outputs +12V through the module by enabling the EN (active low level) function of the +12V switching circuit in the schematic diagram.
The +5V voltage reducing circuit provides +5V output voltage for the computer multipath power supply meeting the standard, and the time sequence control circuit controls whether +12VO of the computer multipath power supply outputs +5V through the module through an enable pin (EN of the +5V voltage reducing circuit in a schematic diagram and active low level) function.
The +3.3V voltage reducing circuit provides +3.3V output voltage for the computer multipath power supply meeting the standard, and the time sequence control circuit controls whether +12VO of the computer multipath power supply outputs +3.3V through the module by enabling the EN (active low level) function of the +3.3V voltage reducing circuit in the schematic diagram.
the-12V converting circuit provides-12V output voltage for the computer multipath power supply meeting the standard, and the time sequence control circuit controls whether +12VO of the computer multipath power supply outputs-12V through the module by enabling the EN (active low level) function of the-12V converting circuit in the schematic diagram.
In an alternative embodiment, as shown in fig. 2, the timing control circuit 15 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second triode Q3, and a control chip IC1; one end of a fifth resistor R5 is connected with the collector of the second triode Q3, and the other end of the fifth resistor R5 is respectively connected with one end of a sixth resistor R6 and one end of a ninth resistor R9; one end of the sixth resistor is also connected with the other end of the voltage stabilizing circuit; the other end of the sixth resistor R6 is respectively connected with one end of the ninth resistor R9, the base electrode of the second triode Q3 and the control chip; the other end of the ninth resistor R9 is connected with the control chip ICI; the emitter of the second triode Q3 is respectively connected with the ground and the control chip; one end of the seventh resistor R7 is connected with the other end of the +12V switching circuit, and the other end of the seventh resistor R7 is connected with one end of the eighth resistor R8; the other end of the eighth resistor R8 is connected to the control chip ICI.
Specifically, as shown in fig. 2, the control chip ICI includes a first PIN1, a second PIN2, a third PIN3, and a fourth PIN4; the first PIN PIN1 is respectively connected with the other end of the fifth resistor R5 and one end of the eighth resistor R8; the other end of the second PIN PIN2 is connected with the emitter of the second triode Q3 respectively with the other end of the eighth resistor R8; the other end of the third PIN PIN3 is connected with the base electrode of the second triode Q3 respectively; the fourth PIN PIN4 is respectively connected with enabling PINs of the +12V switching circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit through a ninth resistor R9 and a fifth resistor R5 in sequence; the fourth PIN PIN4 is also respectively connected with a first signal output port of an external single-path power supply and an external computer main board. Specifically, as shown in fig. 2, the first PIN1 corresponds to PG1 PIN, the second PIN2 corresponds to ground GND PIN, the third PIN3 corresponds to FPO PIN, the fourth PIN4 corresponds to PSNO PIN, and the power-ON trigger signal PS_ON is correspondingly connected with a first signal output port of the single-path power supply, namely a PS_ON#12 VO output end and an external computer main board, and receives a PS_ON#MR signal output by the PS_ON#12 VO output end and a power-ON trigger signal PS_ON of the computer main board.
As shown in fig. 2, the control chip further includes a fifth PIN5, a sixth PIN6, and a seventh PIN7, and the timing control circuit further includes a first diode D1 and a second diode D2; the fifth pin is connected with the other end of the +3.3V voltage reduction circuit, the sixth pin is connected with the other end of the +5V voltage reduction circuit, and the cathode of the first diode D1 and the cathode of the second diode D2 are both connected to the seventh pin; the anode of the first diode D1 is connected with the other end of the +12V switching circuit; the anode of the second diode D2 is connected to the other end of the voltage stabilizing circuit. Specifically, as shown in fig. 2, the fifth PIN5 corresponds to the VS5 PIN, the sixth PIN6 corresponds to the VS33 PIN, and the seventh PIN7 corresponds to the VCC PIN.
As shown in fig. 2, the control chip further includes an eighth PIN8; the eighth PIN PIN8 is connected with the external computer main board. Specifically, the eighth pin corresponds to the PGO pin, and outputs a power normal signal.
As shown in fig. 2, the timing control circuit is used for generating timing control signals of the computer multi-path power supply meeting the standard, and simultaneously is used for monitoring voltages of +12v, +5v, +3.3v output by the multi-path voltage output circuit through the control chip IC 1. The power-ON trigger signal PS_ON of the multipath power supply of the standard computer main board is input from the external computer main board, the power-ON trigger signal PS_ON is connected with a fourth PIN PIN4 of the control chip IC1 and a first signal output port of the single-path power supply, namely a PS_ON#12VO output end, after the power-ON trigger signal of the external computer main board is sent out, the first signal output port of the single-path power supply also outputs the power-ON trigger signal to be transmitted to the fourth PIN, the power-ON trigger signal PS_ON of the fourth PIN is converted into low level, then +12VO of the single-path power supply outputs 12V voltage, and meanwhile, the third PIN PIN3 of the control chip IC1 is jumped from high level to low level, so that a second triode Q3 is conducted, an enable PIN EN of the +12V switch circuit, +5V buck circuit, +3.3V buck circuit is changed from high level to low level, and the four modules are enabled to work, and the voltage required by the multipath power supply of the external computer main board is output.
Then +12VO is divided by a seventh resistor R7 and an eighth resistor R8 to provide a high-level signal for a first PIN PIN1 of the control chip IC1, the control chip IC1 monitors that +3.3V, +5V, +12V is output normally through a fifth PIN PIN5, a sixth PIN PIN6 and a seventh PIN PIN7, and outputs a normal power supply signal PWR_OK of a computer multipath power supply meeting the standard through the eighth PIN PIN8 after preset time, and the normal power supply signal PWR_OK is a high-level signal to inform a computer mainboard that the multipath power supply output is normal. The seventh PIN PIN7 is a power supply PIN of the control chip IC1, has the function of monitoring +12V output voltage, and is used for isolating the +12V voltage output by the voltage stabilizing circuit and avoiding mutual interference. The fifth resistor R5, the sixth resistor R6, and the ninth resistor R9 are all signal pull-up resistors.
As shown in fig. 3, a timing chart of normal output of each PIN of the control chip ICI in the timing control circuit is shown, the control chip IC1 monitors +3.3v, +5v, +12v through the fifth PIN5, the sixth PIN6 and the seventh PIN7, and as shown in fig. 4 and 5, the timing charts of overvoltage and undervoltage of the control chip ICI in the timing control circuit are respectively shown, when overvoltage or undervoltage occurs, the third PIN3 of the control chip IC1 is changed from low level to high level, the second triode Q3 is changed from on state to off state, the level signal of the enable PIN EN of the +12v step-down circuit, +3.3v step-down circuit, -12v step-down circuit is changed from low level signal to high level signal, and at this time, the +12v switch circuit, +5v step-down circuit, +3.3v step-down circuit, -12v step-down circuit is turned off, and the output signal of the eighth PIN8 is both low level signal.
According to the power output conversion device provided by the embodiment of the utility model, the time sequence control signal of the computer multipath power supply can be generated through the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the second triode, the control chip and the connection relation of the time sequence control circuit, and meanwhile, the control chip monitors the output multipath power supply voltage, so that a communication basis is provided for providing multipath power supply for an external computer main board. The first pin, the second pin, the third pin and the fourth pin of the control chip are used for realizing connection and signal transmission with the voltage stabilizing input selection circuit, the voltage stabilizing circuit and one end of the multi-path voltage output circuit and the enabling pin, and the fifth pin, the sixth pin and the seventh pin of the control chip are used for realizing connection with the other end of the multi-path voltage output circuit and multi-path power supply signal transmission, and the eighth pin of the control chip is used for being connected with an external computer main board so as to ensure that multi-path power supply output reaching the external computer main board is normal.
Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.
Claims (10)
1. A power output conversion apparatus, the apparatus comprising: the device comprises a single-path power supply, a voltage stabilizing input selection circuit, a voltage stabilizing circuit, a multipath voltage output circuit and a time sequence control circuit;
the first end and the second end of the single-channel power supply are connected with one end of a voltage stabilizing input selection circuit, and the other end of the voltage stabilizing input selection circuit is connected with one end of the voltage stabilizing circuit and the first end of the multi-channel voltage output circuit respectively;
one end of the time sequence control circuit is respectively connected with the other end of the voltage stabilizing circuit, the second end of the multipath voltage output circuit and the third end of the single-path power supply; the other end of the time sequence control circuit and the third end of the multi-path voltage output circuit are connected with an external computer main board;
the single-path power supply output power supply signal is transmitted to the voltage stabilizing input selection circuit and the multi-path voltage output circuit, the voltage stabilizing input selection circuit generates a port signal according to an input port of the power supply signal, the port signal and the power supply signal are transmitted to the voltage stabilizing circuit, and the voltage stabilizing circuit converts the power supply signal into a voltage stabilizing power supply signal according to the port signal and then transmits the voltage stabilizing power supply signal to the time sequence control circuit and an external computer main board to supply power for the time sequence control circuit and the external computer main board;
the enabling signals of the multipath voltage output circuits are transmitted to the time sequence control circuit;
the single-channel power supply outputs a starting trigger signal to be transmitted to the time sequence control circuit, the time sequence control circuit generates a time sequence control signal according to the starting trigger signal and the enabling signal, and controlling the multi-path voltage output circuit to convert the power supply signals into different voltage classes according to the time sequence control signals to provide multi-path power supplies for the external computer main board.
2. The apparatus of claim 1, wherein the single-pass power supply comprises a first power supply input, a second power supply input, and a first signal output port;
the first end of the single-path power supply is the first power supply input end, the second end of the single-path power supply is the second power supply input end, and the third end of the single-path power supply is the first signal output port;
the first power input end or the second power input end outputs a power signal to be transmitted to the voltage stabilizing input selection circuit and the multipath voltage output circuit;
the first signal output port outputs a starting trigger signal and transmits the starting trigger signal to the time sequence control circuit;
the single-path power supply is grounded.
3. The apparatus of claim 2, wherein the regulated input selection circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a field effect transistor, and a first triode;
one end of the first resistor is respectively connected with the first power input end, the drain electrode of the field effect transistor and the first end of the multi-path voltage output circuit; the other end of the first resistor is connected with one end of the second resistor, the grid electrode of the field effect transistor and the collector electrode of the first triode respectively; the other end of the first resistor, one end of the second resistor, the grid electrode of the field effect transistor and the connection point of the collector electrode of the first triode form a first common point;
one end of the third resistor is connected with the second power input end and one end of the voltage stabilizing circuit respectively; the other end of the third resistor is respectively connected with one end of the fourth resistor and the base electrode of the first triode, and a second common point is formed by the other end of the third resistor, one end of the fourth resistor and the connecting point of the base electrode of the first triode;
the other end of the fourth resistor, the emitter of the first triode and the other end of the second resistor are grounded.
4. The apparatus of claim 3, wherein the multi-path voltage output circuit comprises a +12v switching circuit, +5v buck circuit, +3.3v buck circuit, and a-12V conversion circuit;
one end of the +12V switching circuit, one end of the +5V voltage reducing circuit, one end of the +3.3V voltage reducing circuit and one end of the-12V converting circuit are used as first ends of the multi-path voltage output circuit;
the other end of the +12V switching circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are used as third ends of the multi-path voltage output circuit;
one end of the +12V switching circuit, one end of the +5V voltage reducing circuit, one end of the +3.3V voltage reducing circuit and one end of the-12V converting circuit are connected with the first power input end, one end of the first resistor and the drain electrode of the field effect transistor; the other end of the +12V switching circuit, the other end of the +5V step-down circuit, the other end of the +3.3V step-down circuit and the other end of the-12V conversion circuit are connected with an external computer main board; the enabling pins of the +12V switching circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit are used as the second ends of the multipath voltage output circuits;
the +12V switching circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit comprise enabling pins, and each enabling pin is connected with the time sequence control circuit.
5. The apparatus of claim 4, wherein the +12v switching circuit, +5v buck circuit, +3.3v buck circuit, and-12V conversion circuit are all grounded.
6. The apparatus of claim 4, wherein the timing control circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a second triode, and a control chip;
one end of the fifth resistor is connected with the collector electrode of the second triode, and the other end of the fifth resistor is respectively connected with one end of the sixth resistor and one end of the ninth resistor; one end of the sixth resistor is also connected with the other end of the voltage stabilizing circuit; the other end of the sixth resistor is respectively connected with one end of the ninth resistor, the base electrode of the second triode and the control chip; the other end of the ninth resistor is connected with the control chip;
the emitter of the second triode is respectively connected with the ground and the control chip;
one end of the seventh resistor is connected with the other end of the +12V switching circuit, and the other end of the seventh resistor is connected with one end of the eighth resistor; the other end of the eighth resistor is connected with the control chip.
7. The apparatus of claim 6, wherein the control chip comprises a first pin, a second pin, a third pin, and a fourth pin;
the first pin is respectively connected with the other end of the fifth resistor and one end of the eighth resistor; the second pin is connected with the other end of the eighth resistor and the emitter of the second triode respectively; the third pin is connected with the other end of the sixth resistor and the base electrode of the second triode respectively; the fourth pin is respectively connected with enabling pins of the +12V switching circuit, the +5V step-down circuit, the +3.3V step-down circuit and the-12V conversion circuit through a ninth resistor and a fifth resistor in sequence;
the fourth pin is also respectively connected with a first signal output port of an external single-path power supply and an external computer main board.
8. The apparatus of claim 6, wherein the control chip further comprises a fifth pin, a sixth pin, and a seventh pin, the timing control circuit further comprising a first diode and a second diode;
the fifth pin is connected with the other end of the +3.3V voltage reduction circuit, the sixth pin is connected with the other end of the +5V voltage reduction circuit, and the cathode of the first diode and the cathode of the second diode are both connected to the seventh pin; the anode of the first diode is connected with the other end of the +12V switching circuit; and the anode of the second diode is connected with the other end of the voltage stabilizing circuit.
9. The apparatus of claim 8, wherein the control chip further comprises an eighth pin; the eighth pin is connected with an external computer main board.
10. The apparatus of claim 1, wherein the voltage regulator circuit is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086322.XU CN220492848U (en) | 2023-08-03 | 2023-08-03 | Power output conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086322.XU CN220492848U (en) | 2023-08-03 | 2023-08-03 | Power output conversion device |
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| CN220492848U true CN220492848U (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322086322.XU Active CN220492848U (en) | 2023-08-03 | 2023-08-03 | Power output conversion device |
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