CN114461047B - Computer motherboard power management circuit - Google Patents
Computer motherboard power management circuit Download PDFInfo
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- CN114461047B CN114461047B CN202111665941.3A CN202111665941A CN114461047B CN 114461047 B CN114461047 B CN 114461047B CN 202111665941 A CN202111665941 A CN 202111665941A CN 114461047 B CN114461047 B CN 114461047B
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- chip
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- power supply
- output circuit
- signal
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- 239000003990 capacitor Substances 0.000 claims description 19
- 230000036581 peripheral resistance Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
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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
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/189—Power distribution
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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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)
- Human Computer Interaction (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a computer motherboard power management circuit, which comprises a power chip, a power signal +VNN output circuit, a power signal +V1P8A output circuit, a power signal +V1P24A output circuit, a power signal +VDDQ output circuit, a power signal +V1P05S output circuit and a power signal +VCGI output circuit which are connected with the power chip. The invention selects the highly integrated power chip G6001QY1U, and is matched with two driving chips, two MOSFETs and peripheral resistance and capacitance, thus realizing the same function as NCP81208 and supplying power to a computer main board. The power supply chip is reduced, the power supply circuit is simplified, the Layout and wiring difficulty and the Debug difficulty are reduced, the development progress is accelerated, the size of the PCB is reduced, and meanwhile, the corresponding peripheral resistance and capacitance are reduced, so that the cost is reduced.
Description
Technical Field
The present invention relates to the field of power supply circuits, and in particular, to a computer motherboard power management circuit.
Background
The 21 st century is the era of rapid development of computer technology, and with the increasing of the technical level, the computer application cannot be carried out in the office or personal life of a company at the present stage. The advent of computer technology has been said to have brought convenience to us, greatly improved personal work efficiency, so this technology has been widely used in any industry. Computers in society have become an essential device in people's daily lives.
Most of the functions of a computer are implemented by a computer motherboard, and the computer motherboard is composed of numerous modules, such as a CPU, a graphics card, a WIFI module, a power module, and the like. CPU (Central Processing Unit CPU) is used as the core part of the computer motherboard, and is currently divided into two major families, namely Intel and AMD. The Intel series CPU is divided into Apollo Lake, gemini Lake, ice Lake and other platforms, and the invention is mainly applied to Apollo Lake and is used as a PMU (Power Management Unit power management unit) main control chip of a power module on a main board of the Apollo Lake to supply power to other parts of a computer.
The prior PMU of the Apollo Lake platform adopts the following technical scheme: NCP81208 is used as a main control chip of a power supply:
1. output power signal +VCGI of collocation driving chip and integrated MOSFET;
2. output power signal +VNN of collocation driving chip and discrete MOSFET;
3. outputting a power signal +V1P05S by matching with a power chip;
4. outputting a power signal +V1P8A by matching with a power chip;
5. outputting a power signal +V1P24A by matching with a power chip;
6. and a power supply chip is matched to output a power supply signal +VDDQ.
Therefore, the technology needs to use more power chips, so that the power scheme is complicated in circuit, layout and wiring difficulties are high, and the technology is unfavorable for engineer Debug, so that project progress is too slow. And the necessary resistor and capacitor on the periphery of the circuit are matched, so that the material cost and the production cost are higher.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a power management circuit for a motherboard of a computer to solve the drawbacks of the prior art.
In order to achieve the above objective, the present invention provides a power management circuit for a computer motherboard, which includes a power chip, a power signal +vnn output circuit, a power signal +v1p8a output circuit, a power signal +v1p24a output circuit, a power signal +vddq output circuit, a power signal +v1p05s output circuit, and a power signal +vcgi output circuit connected to the power chip.
Further, the power chip model is G6001QY1U.
Further, the power signal+vnn output circuit includes an inductor connected in series with the output end of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output end of the power chip and the ground end.
Further, the power signal +v1p8a output circuit includes an inductor connected in series with the output end of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output end of the power chip and the ground end.
Further, the power signal +v1p24a output circuit includes an inductor connected in series with the output end of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output end of the power chip and the ground end.
Further, the power supply signal +vddq output circuit includes an RT9610C chip and an AON7934 chip, the output end of the RT9610C chip is connected with the AON7934 chip, the output end of the AON7934 chip is connected with an inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the AON7934 chip and the ground end.
Further, the power signal +v1p05s output circuit includes an inductor connected in series with the output end of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output end of the power chip and the ground end.
Further, the power signal +vcgi output circuit includes an RT9610C chip and an HP8K24 chip, the output end of the RT9610C chip is connected with the HP8K24 chip, the output end of the HP8K24 chip is connected with an inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the HP8K24 chip and the ground end.
The beneficial effects of the invention are as follows:
the invention selects the highly integrated power chip G6001QY1U, and is matched with two driving chips, two MOSFETs and peripheral resistance and capacitance, thus realizing the same function as NCP81208 and supplying power to a computer main board. The power supply chip is reduced, the power supply circuit is simplified, the Layout and wiring difficulty and the Debug difficulty are reduced, the development progress is accelerated, the size of the PCB is reduced, and meanwhile, the corresponding peripheral resistance and capacitance are reduced, so that the cost is reduced.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
Fig. 1 is a schematic diagram of a power chip circuit of the present invention.
Fig. 2 is a schematic diagram of a power supply signal+vnn output circuit of the present invention.
Fig. 3 is a schematic diagram of the power supply signal +v1p8a output circuit of the present invention.
Fig. 4 is a schematic diagram of the power supply signal +v1p24a output circuit of the present invention.
Fig. 5 is a schematic diagram of a driving circuit of the power supply signal+vddq output circuit according to the present invention.
Fig. 6 is a MOSFET schematic diagram of the power supply signal+vddq output circuit of the present invention.
Fig. 7 is a schematic diagram of the power supply signal +v1p05s output circuit of the present invention.
Fig. 8 is a schematic diagram of a driving circuit of the power supply signal+vcgi output circuit of the present invention.
Fig. 9 is a MOSFET schematic diagram of the power supply signal+vcgi output circuit of the present invention.
Detailed Description
The invention provides a computer motherboard power management circuit, which comprises a power chip, a power signal +VNN output circuit, a power signal +V1P8A output circuit, a power signal +V1P24A output circuit, a power signal +VDDQ output circuit, a power signal +V1P05S output circuit and a power signal +VCGI output circuit which are connected with the power chip. As shown in fig. 1, the power chip model in this embodiment is G6001QY1U.
In this embodiment, the power signal+vnn output circuit includes an inductor connected in series with the output terminal of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output terminal of the power chip and the ground terminal.
In this embodiment, the power signal +v1p8a output circuit includes an inductor connected in series with the output terminal of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output terminal of the power chip and the ground terminal.
In this embodiment, the power signal +v1p24a output circuit includes an inductor connected in series with the output terminal of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output terminal of the power chip and the ground terminal.
In this embodiment, the power supply signal+vddq output circuit includes an RT9610C chip and an AON7934 chip, the output end of the RT9610C chip is connected to the AON7934 chip, the output end of the AON7934 chip is connected to the inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the AON7934 chip and the ground end.
In this embodiment, the power signal +v1p05s output circuit includes an inductor connected in series with the output terminal of the power chip, and a plurality of groups of filter capacitors connected in parallel between the output terminal of the power chip and the ground terminal.
In this embodiment, the power signal+vcgi output circuit includes an RT9610C chip and an HP8K24 chip, the output end of the RT9610C chip is connected to the HP8K24 chip, the output end of the HP8K24 chip is connected to the inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the HP8K24 chip and the ground.
As shown in fig. 1, when a power-on signal is received, and +v3p3a and +v5p0a (+v3p3a and +v5p0a) of the computer are standby voltages of the computer, the signal output becomes normal when the power-on signal is received, the 7 th PIN (VCC, which provides an input voltage for the power chip) and the 30 th PIN (pmic_en, which provides an enable signal for the power chip) of the power chip G6001QY1U become high, and at this time G6001QY1U enters an operating state.
As shown in fig. 2, after VCC and pmic_en of G6001QY1U are detected to be high, 45 th PIN (lx1_1) and 46 th PIN (lx1_2) of G6001QY1U send out a PWM (Pulse Width Modulation ) signal, and after passing through inductor L9536, a fixed voltage power supply signal +vnn is output.
As shown in fig. 3, after G6001QY1U outputs power supply signal +vnn, 28 th PIN (lx4_1) and 29 th PIN (lx4_2) send out a PWM signal, and after passing through inductor L9538, output power supply signal +v1p8a with a fixed voltage.
As shown in fig. 4, after G6001QY1U outputs power supply signal +v1p8a, 21 th PIN (lx5) sends out a PWM signal, and after passing through inductor L9539, outputs a power supply signal +v1p24a with a fixed voltage.
As shown in fig. 5 and 6, after the computer enters S3 (SLEEP) state, the 16 th PIN (slp_s4_b) of G6001QY1U is connected to the CPU through a 0Ω resistor, and after entering S3, the CPU sends a signal to change the PIN to high level) to high level. At this time, 49 th PIN (PWM 6) of G6001QY1U sends a PWM signal to 5 th PIN (PWM) of the driving chip EU2001, and 51 th PIN (drv_en6) of G6001QY1U sends an enable signal to 1 st PIN (EN) of EU2001, so that EU2001 starts to operate. Next, the 3 rd PIN (UGATE) of EU2001 sends a PWM signal to the 1 st PIN (G1) of mosfet Q57, the 7 th PIN (LGATE) of EU2001 sends a PWM signal with the same frequency as UGATE to the 8 th PIN (G2) of Q57, and the PWM signal with the same frequency as UGATE is generated by the alternate switching of UGATE and LGATE signals, and a power signal +vddq with a fixed voltage is output after passing through the inductor L9540.
As shown in fig. 7, after the computer enters S0 (system) state, the 14 th PIN (slp_s0_b) of G6001QY1U is connected to the CPU through a 0Ω resistor, and after entering S0, the CPU sends out a signal to make the PIN high level) and the 15 th PIN (slp_s3_b) are connected to the CPU through a 0Ω resistor, and after entering S0, the CPU sends out a signal to make the PIN high level). Thereafter, the 37 th PIN (lx3_1) and the 38 th PIN (lx3_2) emit a PWM signal, and a power signal +v1p05s with a fixed voltage is output after passing through the inductor L9537.
As shown in fig. 8 and 9, after the power signal +v1p05s is output, the 27 th PIN (PCHPWROK) of G6001QY1U goes high, which represents when the PMU is operating normally. At this time, 42PIN (PWM 2) of G6001QY1U sends a PWM signal to 5PIN (PWM) of the driving chip U15, and 44PIN (drv_en2) of G6001QY1U sends an enable signal to 1PIN (EN) of U15 to start U15. Next, the 3 rd PIN (UGATE) of U15 sends a PWM signal to the 1 st PIN (G1) of the MOSFET U9506, the 7 th PIN (LGATE) of U15 sends a PWM signal with the same frequency as UGATE to the 8 th PIN (G2) of U9506, and the PWM signal with the same frequency as UGATE is generated by the alternate switching of UGATE and LGATE signals, and a dynamic voltage power signal +vcgi is output after passing through the inductor L9541.
So far, the power chip G6001QY1U has realized all work, and the whole power management unit provides stable operating voltage for the computer, ensures that the computer normally operates.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (1)
1. A computer motherboard power management circuit, characterized in that: the power supply circuit comprises a power supply chip, a power supply signal +VNN output circuit, a power supply signal +V1P8A output circuit, a power supply signal +V1P24A output circuit, a power supply signal +VDDQ output circuit, a power supply signal +V1P05S output circuit and a power supply signal +VCGI output circuit which are connected with the power supply chip;
the power chip model is G6001QY1U;
the power supply signal +VNN output circuit comprises an inductor connected in series with the output end of the power supply chip and a plurality of groups of filter capacitors connected in parallel between the output end of the power supply chip and the ground end;
the power supply signal +V1P8A output circuit comprises an inductor connected with the output end of the power supply chip in series and a plurality of groups of filter capacitors connected between the output end of the power supply chip and the ground end in parallel;
the power supply signal +V1P24A output circuit comprises an inductor connected with the output end of the power supply chip in series and a plurality of groups of filter capacitors connected between the output end of the power supply chip and the ground end in parallel;
the power supply signal +VDDQ output circuit comprises an RT9610C chip and an AON7934 chip, wherein the output end of the RT9610C chip is connected with the AON7934 chip, the output end of the AON7934 chip is connected with an inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the AON7934 chip and the grounding end; the power supply signal +V1P05S output circuit comprises an inductor connected with the output end of the power supply chip in series and a plurality of groups of filter capacitors connected between the output end of the power supply chip and the ground end in parallel;
the power signal +VCGI output circuit comprises an RT9610C chip and an HP8K24 chip, wherein the output end of the RT9610C chip is connected with the HP8K24 chip, the output end of the HP8K24 chip is connected with an inductor in series, and a plurality of groups of filter capacitors are connected between the output end of the HP8K24 chip and the grounding end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111665941.3A CN114461047B (en) | 2021-12-31 | 2021-12-31 | Computer motherboard power management circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111665941.3A CN114461047B (en) | 2021-12-31 | 2021-12-31 | Computer motherboard power management circuit |
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| CN114461047A CN114461047A (en) | 2022-05-10 |
| CN114461047B true CN114461047B (en) | 2024-02-23 |
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| CN104635892A (en) * | 2013-11-11 | 2015-05-20 | 四川中时代科技有限公司 | Switch stabilized voltage supply for computer |
| CN206193677U (en) * | 2016-09-20 | 2017-05-24 | 合肥联宝信息技术有限公司 | Power management chip and notebook computer |
| CN208384520U (en) * | 2018-08-13 | 2019-01-15 | 北京天地祥云科技有限公司 | Data collection station |
| CN109873399A (en) * | 2019-04-15 | 2019-06-11 | 苏州浪潮智能科技有限公司 | A kind of power protecting circuit and apparatus for protecting power supply |
| CN210804315U (en) * | 2019-06-13 | 2020-06-19 | 深圳微步信息股份有限公司 | Automatic power-on circuit and mainboard |
| CN211127226U (en) * | 2019-12-27 | 2020-07-28 | 深圳市巨历技术有限公司 | Power management circuit and mobile medical workstation |
| CN214504372U (en) * | 2021-01-19 | 2021-10-26 | 深圳微步信息股份有限公司 | Mainboard control circuit and terminal equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11281272B2 (en) * | 2019-03-09 | 2022-03-22 | Diodes Incorporated | Reducing standby power in a switch mode power supply |
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2021
- 2021-12-31 CN CN202111665941.3A patent/CN114461047B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635892A (en) * | 2013-11-11 | 2015-05-20 | 四川中时代科技有限公司 | Switch stabilized voltage supply for computer |
| CN203706130U (en) * | 2014-01-16 | 2014-07-09 | 王运发 | Power supply signal control circuit of computer power supply circuit |
| CN206193677U (en) * | 2016-09-20 | 2017-05-24 | 合肥联宝信息技术有限公司 | Power management chip and notebook computer |
| CN208384520U (en) * | 2018-08-13 | 2019-01-15 | 北京天地祥云科技有限公司 | Data collection station |
| CN109873399A (en) * | 2019-04-15 | 2019-06-11 | 苏州浪潮智能科技有限公司 | A kind of power protecting circuit and apparatus for protecting power supply |
| CN210804315U (en) * | 2019-06-13 | 2020-06-19 | 深圳微步信息股份有限公司 | Automatic power-on circuit and mainboard |
| CN211127226U (en) * | 2019-12-27 | 2020-07-28 | 深圳市巨历技术有限公司 | Power management circuit and mobile medical workstation |
| CN214504372U (en) * | 2021-01-19 | 2021-10-26 | 深圳微步信息股份有限公司 | Mainboard control circuit and terminal equipment |
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| CN114461047A (en) | 2022-05-10 |
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