CN110677043A - Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function - Google Patents
Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function Download PDFInfo
- Publication number
- CN110677043A CN110677043A CN201910863470.3A CN201910863470A CN110677043A CN 110677043 A CN110677043 A CN 110677043A CN 201910863470 A CN201910863470 A CN 201910863470A CN 110677043 A CN110677043 A CN 110677043A
- Authority
- CN
- China
- Prior art keywords
- voltage
- power supply
- circuit
- output end
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention relates to the technical field of power supply control, in particular to a multiphase DCDC power supply control circuit with self-adaptive output voltage regulation. The CPU core power supply adjusts output voltage according to the obtained comparison result of the detection voltage and the set voltage value of the processor, the digital loop compensation circuit compensates the output voltage according to the comparison result of the external voltage and the set voltage value of the processor, and the adaptive voltage positioning circuit adjusts the set voltage value according to the detection circuit. In the prior art, when the output current of the core power supply to the processor changes rapidly, the corresponding speed of the core power supply is insufficient, which results in overlarge output voltage fluctuation. Compared with the prior art, the invention ensures that the output voltage can be kept stable when the output current is changed rapidly through the cooperation of the CPU core power supply, the self-adaptive voltage positioning circuit and the digital loop compensation circuit.
Description
Technical Field
The invention relates to the technical field of power supply control, in particular to a multiphase DCDC power supply control circuit with self-adaptive output voltage regulation.
Background
With the development of semiconductor technology, the power consumption of a processor core continuously increases, the output voltage of a core power supply to a processor continuously decreases, the output current is increasingly large, and the requirement on the power supply design of the processor is also increasingly high. The increase of the output current of the core power supply and the increase of the voltage drop of the feed circuit lead to the decrease of the output voltage along with the increase of the output current, namely the output voltage changes along with the change of the output current. When the output current changes rapidly, the corresponding speed of the core power supply is insufficient, which causes the output voltage fluctuation to be overlarge, thereby causing the voltage fluctuation in the operation process of the processor to be large, and influencing the stability and reliability of the system operation.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a multiphase DCDC power supply control circuit with self-adaptive output voltage regulation.
In order to solve the technical problems, the invention provides the following technical scheme:
a multiphase DCDC power supply control circuit with output voltage self-adaptive adjustment comprises: CPU core power, processor, self-adaptive voltage positioning circuit, digital loop compensation circuit; the CPU core power supply is provided with a voltage input end, a voltage output end and a voltage detection end, the voltage output end and the voltage detection end are electrically connected with the processor, the CPU core power supply acquires the detection voltage of the processor through the voltage detection end, a set voltage value is stored in the CPU core power supply, the CPU core power supply compares the detection voltage and the set voltage value, and the CPU core power supply adjusts the output voltage of the voltage output end according to the comparison result; the self-adaptive voltage positioning circuit is provided with a current detection end and a set output end, the current detection end is electrically connected with the processor, the set output end is electrically connected with the CPU core power supply, the self-adaptive voltage positioning circuit obtains the detection current of the processor through the current detection end, the self-adaptive voltage positioning circuit generates an adjusting voltage according to the detection current, the self-adaptive voltage adjusting positioning circuit adjusts the set voltage value according to the adjusting voltage, and the self-adaptive voltage adjusting positioning circuit outputs the adjusted set voltage value to the CPU core power supply through the set output end; the digital loop compensation circuit is provided with an external voltage receiving end and a compensation output end, the external voltage receiving end and the compensation output end are electrically connected with the CPU core power supply, the digital loop compensation circuit obtains external voltage through the external voltage receiving end, the digital loop compensation circuit compares the external voltage with the set voltage value to generate a digital signal, and the digital loop compensation circuit outputs a compensation signal to the CPU core power supply through the compensation output end according to the digital signal.
In actual operation, a voltage input end is arranged on the CPU core power supply, power is supplied to the CPU core power supply through the voltage input end, a voltage output end is further arranged on the CPU core power supply, and the CPU core power supply supplies power to the processor through the voltage output end. The CPU core power supply is also provided with a voltage detection end, the CPU core power supply detects the voltage of the processor in real time through the voltage detection end to obtain the detection voltage, a set voltage value is stored in the CPU core power supply, the CPU core power supply compares the value of the detection voltage with the set voltage value, and the output voltage of the voltage output end is adjusted according to the comparison result. The digital loop compensation circuit is provided with an external voltage receiving end and a compensation output end, acquires external voltage through the external voltage receiving end, compares the numerical value and the set voltage value of the external voltage, and outputs a compensation signal to the CPU core power supply through the compensation output end according to the comparison result, so that the CPU core power supply is compensated for the processed output voltage. Therefore, the output voltage of the CPU core power supply to the processor is kept stable through the adjustment of the CPU core power supply and the digital loop compensation circuit. The self-adaptive voltage positioning circuit detects the current of the processor in real time through the current detection end to obtain the detection current, so that the adjustment voltage is generated according to the detection current, the set voltage value is adjusted according to the adjustment voltage, the output voltage of the CPU core power supply to the processor is adjusted through adjusting the set voltage value, and the compensation of the CPU core power supply is further adjusted through the digital loop compensation circuit. On one hand, when the output current of the CPU core power supply to the processor is increased, the output voltage is reduced, so that the power consumption of the processor is influenced, and the power consumption of the processor is reduced through further adjustment of the output voltage. On the other hand, the adjustment allowance of the CPU core power supply in adjusting the output voltage can be effectively increased through adjusting the set voltage value, so that the operation of the circuit is more stable. To sum up, through the cooperation of CPU core power, self-adaptation voltage positioning circuit, digital loop compensation circuit three for when CPU core power to the output current rapid change of treater, through regulation and compensation to output voltage, make output voltage more stable.
Furthermore, the CPU core power supply comprises a power chip and a control chip which are arranged among the voltage input end, the voltage output end and the voltage detection end; a power stage is arranged in the power chip, the power stage is electrically connected with the voltage input end and the voltage output end, an external voltage output end is also arranged on the power stage, and the external voltage output end is electrically connected with the external voltage receiving end; the control chip is electrically connected with the voltage detection end, a control output end is further arranged on the control chip, and the control output end is electrically connected with the power chip.
Further, the voltage output end comprises a power supply output end and a power supply return end; and the voltage detection end is connected with a voltage detection line.
Furthermore, the self-adaptive voltage positioning circuit comprises a power circuit, a current detection amplifying circuit and a feedback compensation circuit, wherein the power circuit, the current detection amplifying circuit and the feedback compensation circuit are arranged between the current detection end and the set output end; the power circuit is electrically connected with the current detection end and is also provided with a voltage drop output end; the current detection amplifying circuit is provided with a voltage drop receiving end and a voltage regulation output end, and the voltage drop receiving end is electrically connected with the voltage drop output end; the feedback compensation circuit is provided with an adjusting voltage receiving end which is electrically connected with the adjusting voltage output end, and the feedback circuit is electrically connected with the setting output end.
Further, the power module comprises an inductor, and the inductor is electrically connected with the current detection end and the voltage drop output end; the current detection amplifying circuit comprises a current detection amplifier, and the current detection amplifier is electrically connected with the voltage drop receiving end and the regulated voltage output end.
Furthermore, the self-adaptive positioning circuit also comprises a PWM circuit, and a PWM output end is arranged on the PWM circuit; and the power circuit is also provided with a PWM receiving end, and the PWM output end is electrically connected with the PWM receiving end.
Furthermore, the digital loop compensation circuit comprises a digital controller arranged between the external voltage receiving end and the compensation output end, the digital controller is electrically connected with the external voltage receiving end and the compensation output end, and a set voltage value acquisition end is further arranged on the digital controller.
Further, the digital controller comprises a converter, a PWM regulator and a compensation filter; the PWM regulator is electrically connected with the compensation output end and the compensation filter; the converter is electrically connected with the external voltage receiving end and the set voltage value acquiring end, and is also provided with a digital signal output end which is electrically connected with the compensation filter.
Further, the converter further comprises a digital-to-analog converter and an analog-to-digital converter; the digital-to-analog converter is electrically connected with the external voltage receiving end, the set voltage value acquiring end and the analog-to-digital converter; the analog-to-digital converter is electrically connected with the digital signal output end.
Furthermore, the digital signal output end is also connected with a display.
Compared with the prior art, the invention has the following advantages:
the control chip of the CPU core power supply regulates the output voltage of the power chip to the processor according to the comparison result of the internally stored set voltage value and the detection voltage.
The digital loop compensation generates a digital signal according to a comparison result of the set voltage value and the external voltage, and compensates the output voltage according to the digital signal.
The self-adaptive voltage positioning circuit generates a regulating voltage according to the detection current, and the set voltage value is regulated through the regulating voltage. By adjusting the set voltage value, on the one hand, the output voltage can be further adjusted, so that the power consumption of the processor can be reduced when the output voltage decreases with increasing output current. On the other hand, the output voltage can be adjusted to be margin, so that the operation of the whole circuit is more stable.
Through the cooperation of the control chip, the self-adaptive voltage positioning circuit and the digital loop compensation circuit, when the output current fluctuates rapidly, the output voltage can still be kept stable.
Drawings
FIG. 1: core power supply circuit diagram.
FIG. 2: an adaptive voltage positioning circuit diagram.
FIG. 3: a digital loop compensation circuit diagram.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
A multiphase DCDC power supply control circuit with output voltage self-adaptive adjustment comprises: CPU core power supply, processor, self-adaptive voltage positioning circuit, digital loop compensation circuit.
The CPU core power supply is provided with a voltage input end, a voltage output end and a voltage detection end. The voltage output end and the voltage detection end are electrically connected with the processor. The CPU core power supply comprises a power chip and a control chip which are arranged among a voltage input end, a voltage output end and a voltage detection end. The power chip is internally provided with a power level which is electrically connected with the voltage input end and the voltage output end, and the power level is also provided with an external voltage output end. The control chip is electrically connected with the voltage detection end, and is also provided with a control output end which is electrically connected with the power chip. The voltage output end comprises a power supply output end and a power supply return end; the voltage detection end is connected with a voltage detection line.
In actual operation, the power stage in the power chip obtains electric energy through the voltage input end and outputs the electric energy to the processor through the power output end and the power return end. The voltage detection lines are two in number, the voltage detection lines are electrically connected with the control chip through voltage detection ends, and the voltage detection lines are electrically connected with the processor through a differential wiring mode, so that detection errors are reduced. The control chip is stored with a set voltage value, detects the voltage of the processor in real time through a voltage detection line to obtain a detection voltage, compares the detection voltage with the set voltage value, and outputs a control signal to the power chip through the control output end according to a comparison result so as to adjust the output voltage of the power chip to the processor.
And an external voltage receiving end and a compensation output end are arranged on the digital loop compensation circuit. The external voltage receiving end is electrically connected with the external voltage output end on the power stage, and the compensation output end is electrically connected with the power stage. The digital loop compensation circuit comprises a digital controller arranged between an external voltage receiving end and a compensation output end, and a set voltage value acquisition end is arranged on the digital controller. The digital controller comprises a converter, a PWM regulator and a compensation filter. The PWM regulator is electrically connected with the compensation output end and the compensation filter. The converter comprises a digital-to-analog converter and an analog-to-digital converter, wherein the digital-to-analog converter is electrically connected with an external voltage receiving end, a set voltage value acquiring end and the analog-to-digital converter. The analog-to-digital converter is electrically connected with a digital signal output end, the digital signal output end is electrically connected with the compensation filter, and the digital signal output end is further connected with a display, so that an operator can visually observe the current running state of the digital loop compensation circuit through the display, and the operator can conveniently regulate and control the whole running of the circuit.
In practical operation, as shown in fig. 3, where Rload represents the processor, the power stage obtains an external voltage of the processor and outputs the external voltage to an external voltage receiving terminal on the digital-to-analog converter through an external voltage output terminal. The digital-to-analog converter obtains the external voltage of the processor through the external voltage receiving end and obtains a set voltage value through the set voltage value obtaining end, converts the obtained set voltage value into an analog voltage, compares the analog voltage with the external voltage to obtain a deviation value between the analog voltage and the external voltage, obtains an error voltage and outputs the error voltage to the analog-to-digital converter. The analog-to-digital converter converts the error voltage into a digital signal, the analog-to-digital converter outputs the digital signal to the compensation filter through the digital signal output end, the compensation filter processes the digital signal, the digital signal is converted into a signal suitable for the PWM regulator, and the PWM regulator outputs the PWM signal to the power level according to the converted digital signal, so that the voltage output to the processor by the power level in the power chip is compensated.
The self-adaptive voltage positioning circuit is provided with a current detection end and a set output end. The current detection end is electrically connected with the processor, and the set output end is electrically connected with a control chip of the CPU core power supply. The self-adaptive voltage positioning circuit comprises a power circuit, a current detection amplifying circuit, a feedback compensation circuit and a PWM circuit, wherein the power circuit, the current detection amplifying circuit, the feedback compensation circuit and the PWM circuit are arranged between a current detection end and a set output end. The power circuit comprises an inductor which is electrically connected with a current detection end and a voltage drop output end which are arranged on the power circuit. The current detection amplifying circuit comprises a current detection amplifier, and a voltage drop receiving end and a voltage regulation output end which are arranged on the current detection amplifying circuit are electrically connected, wherein the voltage drop receiving end is electrically connected with the voltage drop output end. The feedback compensation circuit is provided with a regulating voltage receiving end which is electrically connected with the regulating voltage output end, and the feedback compensation circuit is electrically connected with the set output end. The PWM circuit is provided with a PWM output end which is electrically connected with a PWM receiving end arranged on the power circuit.
In actual operation, the inductor detects the current of the processor in real time through the current detection end to obtain the detection current, so that voltage drop is generated through the obtained detection current, and the voltage drop is output to the current detection amplifying circuit through the voltage drop output end. The current detection amplifier of the current detection amplifying circuit obtains voltage drop through the voltage drop receiving end and amplifies the voltage drop, so that the adjusting voltage proportional to the detection current is obtained, and the adjusting voltage is output to the feedback compensating circuit through the adjusting voltage output end. The feedback compensation circuit obtains the regulated voltage through the regulated voltage receiving end, and the feedback compensation circuit superposes the numerical value of the regulated voltage on the set voltage value, so that the set voltage value is regulated, and the regulated set voltage value is output to a control chip of the CPU core power supply through the set output end. By adjusting the set voltage value, on the one hand, the output voltage can be further adjusted, so that the power consumption of the processor can be reduced when the output voltage decreases with increasing output current. On the other hand, the output voltage can be adjusted to be margin, so that the operation of the whole circuit is more stable.
In summary, the control chip of the CPU core power source adjusts the output voltage of the power chip to the processor according to the comparison result between the internally stored set voltage value and the detection voltage, and the digital loop compensation generates a digital signal according to the comparison result between the set voltage value and the external voltage, and compensates the output voltage according to the digital signal. The self-adaptive voltage positioning circuit generates a regulating voltage according to the detection current, and the set voltage value is regulated through the regulating voltage. Through the cooperation of the control chip, the self-adaptive voltage positioning circuit and the digital loop compensation circuit, when the output current fluctuates rapidly, the output voltage can still be kept stable.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A multiphase DCDC power supply control circuit with self-adaptive output voltage regulation is characterized in that: the method comprises the following steps: CPU core power, processor, self-adaptive voltage positioning circuit, digital loop compensation circuit;
the CPU core power supply is provided with a voltage input end, a voltage output end and a voltage detection end, the voltage output end and the voltage detection end are electrically connected with the processor, the CPU core power supply acquires the detection voltage of the processor through the voltage detection end, a set voltage value is stored in the CPU core power supply, the CPU core power supply compares the detection voltage and the set voltage value, and the CPU core power supply adjusts the output voltage of the voltage output end according to the comparison result;
the self-adaptive voltage positioning circuit is provided with a current detection end and a set output end, the current detection end is electrically connected with the processor, the set output end is electrically connected with the CPU core power supply, the self-adaptive voltage positioning circuit obtains the detection current of the processor through the current detection end, the self-adaptive voltage positioning circuit generates an adjusting voltage according to the detection current, the self-adaptive voltage adjusting positioning circuit adjusts the set voltage value according to the adjusting voltage, and the self-adaptive voltage adjusting positioning circuit outputs the adjusted set voltage value to the CPU core power supply through the set output end;
the digital loop compensation circuit is provided with an external voltage receiving end and a compensation output end, the external voltage receiving end and the compensation output end are electrically connected with the CPU core power supply, the digital loop compensation circuit obtains external voltage through the external voltage receiving end, the digital loop compensation circuit compares the external voltage with the set voltage value to generate a digital signal, and the digital loop compensation circuit outputs a compensation signal to the CPU core power supply through the compensation output end according to the digital signal.
2. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 1, wherein: the CPU core power supply comprises a power chip and a control chip which are arranged among the voltage input end, the voltage output end and the voltage detection end;
a power stage is arranged in the power chip, the power stage is electrically connected with the voltage input end and the voltage output end, an external voltage output end is also arranged on the power stage, and the external voltage output end is electrically connected with the external voltage receiving end;
the control chip is electrically connected with the voltage detection end, a control output end is further arranged on the control chip, and the control output end is electrically connected with the power chip.
3. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 2, wherein: the voltage output end comprises a power supply output end and a power supply return end;
and the voltage detection end is connected with a voltage detection line.
4. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 1, wherein: the self-adaptive voltage positioning circuit comprises a power circuit, a current detection amplifying circuit and a feedback compensation circuit, wherein the power circuit, the current detection amplifying circuit and the feedback compensation circuit are arranged between the current detection end and the set output end;
the power circuit is electrically connected with the current detection end and is also provided with a voltage drop output end;
the current detection amplifying circuit is provided with a voltage drop receiving end and a voltage regulation output end, and the voltage drop receiving end is electrically connected with the voltage drop output end;
the feedback compensation circuit is provided with an adjusting voltage receiving end which is electrically connected with the adjusting voltage output end, and the feedback circuit is electrically connected with the setting output end.
5. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 4, wherein: the power module comprises an inductor which is electrically connected with the current detection end and the voltage drop output end;
the current detection amplifying circuit comprises a current detection amplifier, and the current detection amplifier is electrically connected with the voltage drop receiving end and the regulated voltage output end.
6. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 4, wherein: the self-adaptive positioning circuit also comprises a PWM circuit, and a PWM output end is arranged on the PWM circuit;
and the power circuit is also provided with a PWM receiving end, and the PWM output end is electrically connected with the PWM receiving end.
7. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 1, wherein: the digital loop compensation circuit comprises a digital controller arranged between an external voltage receiving end and a compensation output end, the digital controller is electrically connected with the external voltage receiving end and the compensation output end, and a set voltage value acquisition end is further arranged on the digital controller.
8. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 7, wherein: the digital controller comprises a converter, a PWM regulator and a compensation filter;
the PWM regulator is electrically connected with the compensation output end and the compensation filter;
the converter is electrically connected with the external voltage receiving end and the set voltage value acquiring end, and is also provided with a digital signal output end which is electrically connected with the compensation filter.
9. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 8, wherein: the converter also comprises a digital-to-analog converter and an analog-to-digital converter;
the digital-to-analog converter is electrically connected with the external voltage receiving end, the set voltage value acquiring end and the analog-to-digital converter;
the analog-to-digital converter is electrically connected with the digital signal output end.
10. The multi-group DCDC power supply control circuit with adaptive output voltage regulation of claim 9, wherein: the digital signal output end is also connected with a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910863470.3A CN110677043B (en) | 2019-09-12 | 2019-09-12 | Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910863470.3A CN110677043B (en) | 2019-09-12 | 2019-09-12 | Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110677043A true CN110677043A (en) | 2020-01-10 |
| CN110677043B CN110677043B (en) | 2021-05-28 |
Family
ID=69077808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910863470.3A Active CN110677043B (en) | 2019-09-12 | 2019-09-12 | Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110677043B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327725A (en) * | 2020-11-30 | 2021-02-05 | 北京航天长征飞行器研究所 | Self-adaptive dynamic adjustment system for power output |
| CN113886325A (en) * | 2021-11-04 | 2022-01-04 | 珠海奔图电子有限公司 | On-chip system, circuit, image forming device and power supply method |
| CN115543059A (en) * | 2022-11-30 | 2022-12-30 | 飞腾信息技术有限公司 | Processor, processor system and system on chip |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130187463A1 (en) * | 2012-01-19 | 2013-07-25 | Asustek Computer Inc. | Switching Power Control Device and Control Method of the Same |
| CN103392382A (en) * | 2010-12-27 | 2013-11-13 | Lg伊诺特有限公司 | Power supply |
| CN103580478A (en) * | 2012-07-30 | 2014-02-12 | 瑞萨电子株式会社 | Voltage regulator, semiconductor device, and data processing system |
| US20150288282A1 (en) * | 2013-03-15 | 2015-10-08 | Intersil Americas Llc. | Digital voltage compensation for power supply integrated circuits |
| CN105792433A (en) * | 2016-04-19 | 2016-07-20 | 深圳市明微电子股份有限公司 | Switch power driving chip and silicon controlled rectifier dimmer LED drive circuit |
| CN105871208A (en) * | 2015-02-05 | 2016-08-17 | 英飞凌科技奥地利有限公司 | Multi-phase switching voltage regulator having asymmetric phase inductance |
| CN207200580U (en) * | 2017-09-20 | 2018-04-06 | 上海新进半导体制造有限公司 | A kind of Burst Mode voltage adaptives adjust circuit |
| CN110011535A (en) * | 2018-03-28 | 2019-07-12 | 成都芯源系统有限公司 | Self-adaptive voltage positioning direct current voltage stabilizer and control circuit and control method thereof |
-
2019
- 2019-09-12 CN CN201910863470.3A patent/CN110677043B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392382A (en) * | 2010-12-27 | 2013-11-13 | Lg伊诺特有限公司 | Power supply |
| US20130187463A1 (en) * | 2012-01-19 | 2013-07-25 | Asustek Computer Inc. | Switching Power Control Device and Control Method of the Same |
| CN103580478A (en) * | 2012-07-30 | 2014-02-12 | 瑞萨电子株式会社 | Voltage regulator, semiconductor device, and data processing system |
| US20150288282A1 (en) * | 2013-03-15 | 2015-10-08 | Intersil Americas Llc. | Digital voltage compensation for power supply integrated circuits |
| CN105871208A (en) * | 2015-02-05 | 2016-08-17 | 英飞凌科技奥地利有限公司 | Multi-phase switching voltage regulator having asymmetric phase inductance |
| CN105792433A (en) * | 2016-04-19 | 2016-07-20 | 深圳市明微电子股份有限公司 | Switch power driving chip and silicon controlled rectifier dimmer LED drive circuit |
| CN207200580U (en) * | 2017-09-20 | 2018-04-06 | 上海新进半导体制造有限公司 | A kind of Burst Mode voltage adaptives adjust circuit |
| CN110011535A (en) * | 2018-03-28 | 2019-07-12 | 成都芯源系统有限公司 | Self-adaptive voltage positioning direct current voltage stabilizer and control circuit and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 朱平，等: "高性能计算存储关键技术研究", 《计算机研究与发展》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327725A (en) * | 2020-11-30 | 2021-02-05 | 北京航天长征飞行器研究所 | Self-adaptive dynamic adjustment system for power output |
| CN113886325A (en) * | 2021-11-04 | 2022-01-04 | 珠海奔图电子有限公司 | On-chip system, circuit, image forming device and power supply method |
| CN113886325B (en) * | 2021-11-04 | 2024-01-02 | 珠海奔图电子有限公司 | System on chip, circuit, image forming device and power supply method |
| CN115543059A (en) * | 2022-11-30 | 2022-12-30 | 飞腾信息技术有限公司 | Processor, processor system and system on chip |
| CN115543059B (en) * | 2022-11-30 | 2023-03-07 | 飞腾信息技术有限公司 | Processor, processor system and system on chip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110677043B (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110677043B (en) | Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function | |
| US7402987B2 (en) | Low-dropout regulator with startup overshoot control | |
| US10063130B2 (en) | Multi-stage amplifier | |
| CN103163928B (en) | Circuit and method for providing a reference signal | |
| CN101789682B (en) | Multiple output power supply time sequence control device and method | |
| EP3480933B1 (en) | A circuit for a switched mode power supply | |
| EP2887174B1 (en) | CC-CV method to control the startup current for LDO | |
| US11092989B2 (en) | Voltage regulator with impedance compensation | |
| TW201327083A (en) | Dynamic voltage adjustment device and power transmission system using the same | |
| CN111193402B (en) | Digital control system and method of DC-DC power supply | |
| CN112034918B (en) | AVS voltage regulating circuit and device | |
| CN203204489U (en) | Low-dropout regulator with multi-power input | |
| US20110089914A1 (en) | Apparatus and method for isolating an adaptive voltage scaling (AVS) loop in a powered system | |
| US10756621B2 (en) | Voltage regulators with controlled output voltage and the method thereof | |
| CN103872883A (en) | Voltage limiting and current limiting control device for flyback power supply | |
| US11442481B2 (en) | Digital regulator system and control method thereof | |
| CN111211690A (en) | Power supply circuit | |
| US10476610B2 (en) | Semiconductor integrated circuit, semiconductor system, and electric source voltage control method | |
| WO2020258420A1 (en) | Voltage regulator | |
| JPH07131272A (en) | Power amplifying device | |
| CN116009635B (en) | Driving circuit for voltage-controlled current output | |
| CN108717928B (en) | Electron beam control device and method for shared accelerating power supply array type electron gun | |
| CN212229500U (en) | Numerical control direct current source | |
| CN220020184U (en) | Negative feedback voltage stabilizing circuit based on three-terminal voltage stabilizer | |
| US10930959B2 (en) | Fuel cell system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |