CN105700607A - Supply voltage regulating circuit and electronic device - Google Patents
Supply voltage regulating circuit and electronic device Download PDFInfo
- Publication number
- CN105700607A CN105700607A CN201610048968.0A CN201610048968A CN105700607A CN 105700607 A CN105700607 A CN 105700607A CN 201610048968 A CN201610048968 A CN 201610048968A CN 105700607 A CN105700607 A CN 105700607A
- Authority
- CN
- China
- Prior art keywords
- voltage
- terminal
- supply voltage
- microprocessor
- pmu
- 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
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 40
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The embodiment of the invention discloses a supply voltage regulating circuit and an electronic device. The supply voltage regulating circuit comprises a control system, a PMU, a microprocessor, an analog-digital converter and a power module, wherein the analog-digital converter is used for acquiring the supply voltage of a terminal, converting the supply voltage of the terminal into a digital voltage signal and providing the digital voltage signal to the microprocessor, the control system is used for sending a control instruction to the PMU, the PMU is used for supplying the control instruction to the microprocessor, the microprocessor is used for providing variable regulating voltage for the power module according to the digital voltage signal and the control instruction provided by the PMU, the power module is used for regulating output driving voltage according to the variable regulating voltage, and the driving voltage is provided for the terminal to serve as stable supply voltage after being split through a cable resistor. According to the supply voltage regulating circuit and the electronic device, the supply voltage can be automatically regulated when load current changes so as to maintain the constancy of the terminal voltage and achieve reliable and stable power supply of the terminal.
Description
Technical Field
The present invention relates to the field of voltage regulation technologies, and in particular, to a supply voltage regulating circuit and an electronic device.
Background
Fig. 1 is a block diagram of a conventional electronic device, which generally includes a power module 10 and a terminal 13 connected to the power module 10 via a Cable (Cable)11, as shown in fig. 1. The power supply module 10 provides a power supply voltage to the terminal 13 through the cable 11, and the resistance of the cable 11 cannot be ignored, so when the load of the terminal 13 changes, the voltage of the cable 11 also changes along with the change of the load, so that the power supply voltage reaching the terminal 13 changes greatly, and the terminal 13 cannot work normally and stably. For example, when the load of the terminal 13 is changed from a light load with a smaller resistance value to a heavy load with a larger resistance value, the current flowing through the terminal 13 is changed from small to large, the current on the cable 11 is also changed from small to large, a larger voltage drop is generated at two ends of the cable 11 during heavy load, the voltage output by the power module 10 is usually fixed, and after the voltage is reduced by the resistance of the cable 11, the supply voltage reaching the terminal 13 is reduced so as to be far lower than an expected working standard voltage value, and when the supply voltage reaching the terminal 13 is too low, the stability of the supply voltage of the terminal 13 is affected, so that the terminal 13 cannot work normally and stably. In addition, when the terminal 13 of the electronic device works alternately between a heavy load and a light load, the power supply voltage of the terminal 13 changes greatly, and the change of the power supply voltage causes great impact on the terminal 13, so that the service life of the terminal 13 is reduced.
Disclosure of Invention
The invention provides a power supply voltage regulating circuit and an electronic device, which can automatically regulate power supply voltage when load current changes so as to keep the voltage of a terminal constant and realize reliable and stable power supply of the terminal.
The technical scheme is as follows:
the invention provides a supply voltage regulating circuit, which comprises: the system comprises a control system, a PMU, a microprocessor, an analog-to-digital converter and a power supply module; the analog-to-digital converter is connected with a terminal through a power supply connector and a feedback line in sequence, is also connected with the microprocessor, and is used for acquiring the power supply voltage of the terminal, converting the power supply voltage of the terminal into a digital voltage signal and supplying the digital voltage signal to the microprocessor; the control system is connected with the PMU and used for sending a control command to the PMU; the PMU is connected with the microprocessor and used for providing the control command to the microprocessor; the microprocessor is connected with the power supply module and used for providing variable regulated voltage to the power supply module according to the digital voltage signal and the control command provided by the PMU; the power module is connected with the terminal through a cable and used for adjusting the output driving voltage according to the changed adjusting voltage, and the driving voltage is divided through the resistance of the cable and then provided for the stable power supply voltage of the terminal.
In one embodiment of the present invention, the power supply voltage regulating circuit is connected to a terminal connector provided on the terminal through the power connector and the cable line in this order.
In one embodiment of the invention, the PMU is connected with the microprocessor through an I2C bus.
In an embodiment of the present invention, the control system sends a corresponding control command to the PMU according to the required voltage of the terminal.
In one embodiment of the present invention, the microprocessor is a single chip microcomputer.
In an embodiment of the present invention, the microprocessor is further configured to compare the digital voltage signal with a terminal demand voltage corresponding to a control command provided by the PMU, calculate a difference between the digital voltage signal and the terminal demand voltage corresponding to the control command, and obtain a varying regulated voltage according to a variation of the difference, and provide the varying regulated voltage to the power module.
In an embodiment of the present invention, the microprocessor is further configured to compare the digital voltage signal with a terminal demand voltage corresponding to a control command provided by the PMU when a load of the terminal changes from a light load to a heavy load, calculate a difference between the digital voltage signal and the terminal demand voltage corresponding to the control command to be larger, increase an adjustment voltage according to the larger difference, and provide the adjustment voltage to the power module, where the power module increases a driving voltage output by the power module according to the increased adjustment voltage, and provides the driving voltage to a stable supply voltage of the terminal after the driving voltage is divided by the cable line resistance.
The invention provides an electronic device which comprises the power supply voltage regulating circuit.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
acquiring the power supply voltage of the terminal through an analog-to-digital converter, converting the power supply voltage of the terminal into a digital voltage signal and then providing the digital voltage signal to a microprocessor; the control system sends a control command to the PMU; the PMU provides the control command to the microprocessor; the microprocessor provides variable regulated voltage to the power supply module according to the digital voltage signal and the control command provided by the PMU; the power module adjusts the output driving voltage according to the changed adjusting voltage, and the driving voltage is provided for the stable power supply voltage of the terminal after being divided by the wire resistance of the cable. Therefore, when the terminal works under light load or heavy load, the driving voltage output by the power module can be automatically adjusted according to the feedback power supply voltage of the terminal, after voltage division is carried out through the wire resistance of the cable, the power supply voltage reaching the terminal can be guaranteed to be stable working standard voltage, the precision of the driving voltage output by the power module is very high, in addition, the stable power supply voltage also reduces the impact of the change of the power supply voltage on the terminal, and the service life of the electronic device is prolonged.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a block diagram of a conventional electronic device;
fig. 2 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the supply voltage regulating circuit and the electronic device according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Fig. 2 is a block diagram of an electronic device according to an embodiment of the present invention. Referring to fig. 2, the electronic device includes: supply voltage regulating circuit 20 and terminal 21.
The power supply voltage adjusting circuit 20 is connected to a terminal connector 25 provided on the terminal 21 through a power supply connector 22 and a cable 23 in order, and is configured to stably and reliably supply power to the terminal 21 when a load of the terminal 21 changes.
Specifically, the supply voltage regulating circuit 20 includes a control system 201, a PMU (power management unit) 202, a microprocessor 203, an analog-to-digital converter 205, and a power module 207.
The analog-to-digital converter 205 is connected to the terminal connector 25 disposed on the terminal 21 through the power connector 22 and the feedback line 26, and is further connected to the microprocessor 203, and is configured to obtain the power supply voltage of the terminal 21, convert the power supply voltage of the terminal 21 into a digital voltage signal, and provide the digital voltage signal to the microprocessor 203. The equivalent resistance of the feedback line 26, the power line connected between the analog-to-digital converter 205 and the power connector 22, and the power line connected between the power module 207 and the power connector 22 is extremely small, and the voltage drop across the equivalent resistance is negligible.
And the control system 201 is connected with the PMU202 and used for sending the control command to the PMU 202. The control system 201 may send a corresponding control command to the PMU202 according to the required voltage of the terminal 21, for example, if the required voltage of the terminal 21 is 5V, the required voltage of the terminal 21 corresponding to the control command is 5V.
PMU202, coupled to control system 201 and microprocessor 203, provides control commands to microprocessor 203. The PMU202 and the microprocessor 203 may be connected via an I2C (Inter-Integrated Circuit) bus.
And the microprocessor 203 is connected with the PMU202, the analog-to-digital converter 205 and the power module 207, and is configured to provide a variable regulated voltage to the power module 207 according to the digital voltage signal and the control command provided by the PMU 202. The microprocessor 203 may be a single chip microcomputer.
Preferably, the microprocessor 203 is further configured to compare the digital voltage signal with a terminal 21 required voltage corresponding to the control command provided by the PMU202, calculate a difference between the digital voltage signal and the terminal 21 required voltage corresponding to the control command, and provide a changed regulated voltage to the power module 207 according to a change of the difference.
And the power supply module 207 is connected with the microprocessor 203, is also connected with the terminal 21 through a cable 23, and is used for adjusting the output driving voltage according to the changed adjusting voltage and stabilizing the power supply voltage reaching the terminal 21 through the cable 23.
Preferably, the microprocessor 203 is further configured to compare the digital voltage signal with a terminal 21 demand voltage corresponding to a control command provided by the PMU202 when the load of the terminal 21 changes from a light load to a heavy load, increase a difference between the calculated digital voltage signal and the terminal 21 demand voltage corresponding to the control command, increase an adjustment voltage according to the increased difference, and provide the adjustment voltage to the power module 207, where the power module 207 increases the driving voltage output by the power module according to the increased adjustment voltage, and provide the driving voltage to the terminal 21 after the driving voltage is divided by the line resistance of the cable 23, so that the driving voltage output by the power module 207 can be automatically adjusted, and it is ensured that the supply voltage reaching the terminal 21 is a stable standard operating voltage.
The working principle of the electronic device of the invention is as follows: the control system 201 sends a control command to the PMU202 according to the required voltage of the terminal 21, the PMU202 sends the control command to the microprocessor 203, the microprocessor 203 receives the control command, in an initial state, no supply voltage feedback is provided on the feedback line 26, or the feedback supply voltage is zero, the microprocessor 203 provides a regulated voltage to the power module 207 according to the control command provided by the PMU202 for the first time, the power module 207 outputs a driving voltage according to the regulated voltage, and forms a supply voltage to the terminal 21 through the power connector 22 and the cable 23 in sequence, and then feeds the supply voltage back to the analog-to-digital converter 205 through the feedback line 26 of the terminal 21, since the current on the feedback line 26 is small, the voltage difference of the feedback supply voltage from the terminal 21 to the analog-to-digital converter 205 is negligible, the feedback supply voltage is converted into a digital voltage signal by the analog-to-digital, the microprocessor 203 receives the digital voltage signal, the microprocessor 203 can read out the required voltage of the terminal 21 according to the control command provided by the PMU202, then calculate the difference between the digital voltage signal and the required voltage of the terminal 21 corresponding to the control command, and obtain a changed regulated voltage according to the change of the difference and provide the changed regulated voltage to the power module 207, the power module 207 adjusts the magnitude of the output driving voltage according to the changed regulated voltage, and the driving voltage is provided to the stable power supply voltage of the terminal 21 after being subjected to line resistance voltage division through the cable 23.
Thus, when the load of the terminal 21 is light load, the current on the cable 23 is small, the voltage drop generated on the cable 23 is small, the power supply voltage of the terminal 21 is large, that is, the feedback power supply voltage is large, the digital voltage signal received by the microprocessor 203 is also large, the difference between the digital voltage signal calculated by the microprocessor 203 and the required voltage of the terminal 21 corresponding to the control command is small, and the difference is increased by a small amplitude of the regulated voltage and then provided to the power module 207, the power module 207 increases the output driving voltage by a small amplitude according to the regulated voltage increased by the small amplitude, and the power supply voltage reaching the terminal 21 is kept stable after small voltage division is performed through the wire resistance of the cable 23. When the load of the terminal 21 is changed from light load to heavy load, the current on the cable 23 is larger, that is, the voltage drop generated on the cable 23 is larger than that of light load, the power supply voltage of the terminal 21 is lower than that of light load, that is, the feedback power supply voltage is lower, the digital voltage signal received by the microprocessor 203 is also lower than that of light load, the difference between the digital voltage signal calculated by the microprocessor 203 and the required voltage of the terminal 21 corresponding to the control command is larger than that of light load, the regulated voltage is increased by a larger amplitude according to the larger difference and is provided to the power module 207, the power module 207 increases the driving voltage output by the power module 207 by a larger amplitude according to the regulated voltage after increasing the larger amplitude compared with that of light load, and the power supply voltage reaching the terminal 21 is kept stable after the voltage division is performed through the line resistance of the cable 23, so that the power supply voltage of the terminal 21 is always stabilized on the standard voltage value of the terminal, the power supply voltage of the terminal 21 is prevented from being pulled down by heavy load to influence the normal operation of the terminal 21.
In summary, the supply voltage adjusting circuit and the electronic device provided in this embodiment obtain the supply voltage of the terminal through the analog-to-digital converter, convert the supply voltage of the terminal into a digital voltage signal, and provide the digital voltage signal to the microprocessor; the control system sends a control command to the PMU; the PMU provides the control command to the microprocessor; the microprocessor provides variable regulated voltage to the power supply module according to the digital voltage signal and the control command provided by the PMU; the power module adjusts the output driving voltage according to the changed adjusting voltage, and the driving voltage is provided for the stable power supply voltage of the terminal after being divided by the wire resistance of the cable. Therefore, when the terminal works under light load or heavy load, the driving voltage output by the power module can be automatically adjusted according to the feedback power supply voltage of the terminal, after voltage division is carried out through the wire resistance of the cable, the power supply voltage reaching the terminal can be guaranteed to be stable working standard voltage, the precision of the driving voltage output by the power module is very high, in addition, the stable power supply voltage also reduces the impact of the change of the power supply voltage on the terminal, and the service life of the electronic device is prolonged.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A supply voltage regulation circuit, comprising: the system comprises a control system, a PMU, a microprocessor, an analog-to-digital converter and a power supply module; wherein,
the analog-to-digital converter is connected with a terminal through a power supply connector and a feedback line in sequence, is also connected with the microprocessor, and is used for acquiring the power supply voltage of the terminal, converting the power supply voltage of the terminal into a digital voltage signal and supplying the digital voltage signal to the microprocessor;
the control system is connected with the PMU and used for sending a control command to the PMU;
the PMU is connected with the microprocessor and used for providing the control command to the microprocessor;
the microprocessor is connected with the power supply module and used for providing variable regulated voltage to the power supply module according to the digital voltage signal and the control command provided by the PMU;
the power module is connected with the terminal through a cable and used for adjusting the output driving voltage according to the changed adjusting voltage, and the driving voltage is divided through the resistance of the cable and then provided for the stable power supply voltage of the terminal.
2. The supply voltage regulating circuit according to claim 1, wherein the supply voltage regulating circuit is connected to a terminal connector provided on the terminal through the power connector and the cable line in this order.
3. The supply voltage regulation circuit of claim 1 wherein the PMU and the microprocessor are coupled via an I2C bus.
4. The supply voltage regulator circuit according to claim 1, wherein the control system sends a corresponding control command to the PMU according to the required voltage of the terminal.
5. The supply voltage regulation circuit of claim 1 wherein the microprocessor is a single chip.
6. The supply voltage regulating circuit according to claim 1, wherein the microprocessor is further configured to compare the digital voltage signal with a terminal demand voltage corresponding to a control command provided by the PMU, calculate a difference between the digital voltage signal and the terminal demand voltage corresponding to the control command, and obtain a varying regulated voltage according to a variation of the difference, and provide the varying regulated voltage to the power module.
7. The supply voltage regulator circuit according to claim 1, wherein the microprocessor is further configured to compare the digital voltage signal with a terminal demand voltage corresponding to a control command provided by the PMU when a load of the terminal changes from a light load to a heavy load, calculate a difference between the digital voltage signal and the terminal demand voltage corresponding to the control command to be larger, increase a regulation voltage according to the larger difference, and supply the adjustment voltage to the power module, the power module increases a driving voltage output by the power module according to the increased regulation voltage, and the driving voltage is divided by the cable resistance and then supplied to a stable supply voltage of the terminal.
8. An electronic device, characterized in that it comprises a supply voltage regulating circuit according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048968.0A CN105700607B (en) | 2016-01-25 | 2016-01-25 | Supply voltage adjusts circuit and electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048968.0A CN105700607B (en) | 2016-01-25 | 2016-01-25 | Supply voltage adjusts circuit and electronic installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105700607A true CN105700607A (en) | 2016-06-22 |
| CN105700607B CN105700607B (en) | 2018-02-06 |
Family
ID=56228468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610048968.0A Active CN105700607B (en) | 2016-01-25 | 2016-01-25 | Supply voltage adjusts circuit and electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105700607B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988711A (en) * | 2018-07-20 | 2018-12-11 | 吉林大学 | A kind of motor control method of the electronic bridge plug delivery tool in oil field |
| CN111223461A (en) * | 2020-01-16 | 2020-06-02 | 昆山龙腾光电股份有限公司 | Voltage regulating circuit and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0934561A (en) * | 1995-07-17 | 1997-02-07 | Nec Corp | Load voltage stabilizing power unit |
| JP2002091577A (en) * | 2000-09-18 | 2002-03-29 | Keisoku Giken Co Ltd | Electronic load device |
| CN101046695A (en) * | 2006-03-30 | 2007-10-03 | 英业达股份有限公司 | Stablized control method and device for remote load voltage |
| CN201039004Y (en) * | 2007-04-06 | 2008-03-19 | 北京嘉捷恒信能源技术有限责任公司 | Separated dual closed remote sampling voltage stabilizing device for multi-switch power module |
| US20100232187A1 (en) * | 2009-03-12 | 2010-09-16 | System General Corp. | Output voltage control circuit of power converter for light-load power saving |
| CN102053695A (en) * | 2009-10-30 | 2011-05-11 | 华为终端有限公司 | Power supply management device and power supply system |
| CN102759942A (en) * | 2012-06-25 | 2012-10-31 | 中国兵器工业集团第二一四研究所苏州研发中心 | Transient state intensifier circuit applicable for capacitance-free large power low voltage difference linear voltage regulator |
| CN102931842A (en) * | 2012-10-12 | 2013-02-13 | 华为技术有限公司 | Chip dynamic voltage regulating circuit and terminal equipment |
-
2016
- 2016-01-25 CN CN201610048968.0A patent/CN105700607B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0934561A (en) * | 1995-07-17 | 1997-02-07 | Nec Corp | Load voltage stabilizing power unit |
| JP2002091577A (en) * | 2000-09-18 | 2002-03-29 | Keisoku Giken Co Ltd | Electronic load device |
| CN101046695A (en) * | 2006-03-30 | 2007-10-03 | 英业达股份有限公司 | Stablized control method and device for remote load voltage |
| CN201039004Y (en) * | 2007-04-06 | 2008-03-19 | 北京嘉捷恒信能源技术有限责任公司 | Separated dual closed remote sampling voltage stabilizing device for multi-switch power module |
| US20100232187A1 (en) * | 2009-03-12 | 2010-09-16 | System General Corp. | Output voltage control circuit of power converter for light-load power saving |
| CN102053695A (en) * | 2009-10-30 | 2011-05-11 | 华为终端有限公司 | Power supply management device and power supply system |
| CN102759942A (en) * | 2012-06-25 | 2012-10-31 | 中国兵器工业集团第二一四研究所苏州研发中心 | Transient state intensifier circuit applicable for capacitance-free large power low voltage difference linear voltage regulator |
| CN102931842A (en) * | 2012-10-12 | 2013-02-13 | 华为技术有限公司 | Chip dynamic voltage regulating circuit and terminal equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988711A (en) * | 2018-07-20 | 2018-12-11 | 吉林大学 | A kind of motor control method of the electronic bridge plug delivery tool in oil field |
| CN111223461A (en) * | 2020-01-16 | 2020-06-02 | 昆山龙腾光电股份有限公司 | Voltage regulating circuit and display device |
| CN111223461B (en) * | 2020-01-16 | 2023-05-26 | 昆山龙腾光电股份有限公司 | Voltage regulating circuit and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105700607B (en) | 2018-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9158314B2 (en) | Voltage regulator, and control circuit and control method thereof | |
| US10819139B2 (en) | Power supply including logic circuit | |
| CN103166280B (en) | Power-supply management system and method for managing power supply | |
| US10439390B1 (en) | Multi-port power supply apparatus and operation method thereof | |
| US20080211313A1 (en) | Series regulator | |
| US20140103993A1 (en) | Chip dynamic voltage regulator circuit and terminal device | |
| US9564770B2 (en) | Power management circuit, and control circuit and control method thereof | |
| CN1909314B (en) | Electronic trip device with a power supply circuit means, and circuit breaker comprising such device | |
| CN110677043B (en) | Multiphase DCDC power supply control circuit with self-adaptive output voltage adjustment function | |
| US9052727B2 (en) | Power supply circuit, switching regulator, and control circuit and control method thereof | |
| US10756621B2 (en) | Voltage regulators with controlled output voltage and the method thereof | |
| US20210159770A1 (en) | Power supply device with multiple wide-voltage-range outputs and control method thereof | |
| US10305278B2 (en) | Voltage control system | |
| US11309799B2 (en) | Power supply device | |
| CN207283384U (en) | A kind of feedback regulation control circuit and Switching Power Supply | |
| CN105700607B (en) | Supply voltage adjusts circuit and electronic installation | |
| US20140253019A1 (en) | Charger Circuit and Control Circuit and Control Method Thereof | |
| US20080180082A1 (en) | Power regulator with constant voltage output | |
| US10097087B2 (en) | Power conversion including sensing a load current and adapting output voltage based on the load current | |
| JP2010015471A (en) | Regulator apparatus, and electronic apparatus provided with the same | |
| CN102545696A (en) | Maximum power tracking device and method for photovoltaic battery | |
| CN111694394A (en) | Digital voltage stabilizing system and control method thereof | |
| US20190052110A1 (en) | Charger circuit with temperature compensation function and controller circuit thereof | |
| CN109804327B (en) | Voltage stabilizing circuit, power supply circuit with same and remote controller | |
| KR20180124022A (en) | Input voltage control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |