CN117477953B - Power module with adjustable multipath voltage output - Google Patents
Power module with adjustable multipath voltage output Download PDFInfo
- Publication number
- CN117477953B CN117477953B CN202311821393.8A CN202311821393A CN117477953B CN 117477953 B CN117477953 B CN 117477953B CN 202311821393 A CN202311821393 A CN 202311821393A CN 117477953 B CN117477953 B CN 117477953B
- Authority
- CN
- China
- Prior art keywords
- voltage
- voltage output
- buck converter
- output
- power supply
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
-
- 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
- H02M3/157—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 with digital control
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The invention relates to the field of power supply of electronic precision equipment, in particular to a power supply module with adjustable multipath voltage output, which comprises a power supply source, a first buck converter, a second buck converter and an inverting buck converter, wherein the power supply source is used for providing initial input voltage; the shunt regulator is used for supplying power to a DAC module in the micro-control unit, the inverting buck converter and the second buck converter are used for supplying power to an operational amplifier in the voltage output circuit, the DAC module is connected to a differential input end of the operational amplifier, and the output voltage of the DAC module is controlled through the micro-control unit to regulate the output voltage of each operational amplifier. The invention only needs one power supply, thereby simplifying the volume of the whole power supply system and reducing the power supply cost of the power supply system.
Description
Technical Field
The invention relates to the technical field of power supply of electronic precision equipment, in particular to a power module with adjustable multipath voltage output.
Background
Electronic precision equipment requires a reliable and efficient power supply system to achieve optimal performance. The power supply system comprises a plurality of control circuits and a plurality of power supply sources, wherein each power supply source generates required initial input voltage for each control circuit, each control circuit generates fixed output voltage based on the input initial input voltage, the plurality of control circuits generate a plurality of fixed output voltages to supply power to each component in the electronic precision equipment, and the plurality of power supply sources and the control circuits not only can increase the power supply cost of the power supply system, but also can increase the volume of the whole power supply system.
Disclosure of Invention
In view of the above problems, the present invention provides a power module with multiple adjustable voltage outputs, which is controlled by a micro control unit to output multiple adjustable voltages, so as to simplify the size of the whole power supply system and reduce the power supply cost of the power supply system.
The invention provides a power module with adjustable multipath voltage output, which comprises a power supply, a boost converter, a shunt regulator, a first buck converter, a second buck converter, an inverting buck converter, a micro control unit and at least two voltage output circuits; wherein,
the power supply is used for outputting an initial input voltage of 2.5V-6V;
the first buck converter is used for receiving an initial input voltage of 2.5V-6V and converting the initial input voltage into a voltage of 1.8V;
the boost converter is used for receiving an initial input voltage of 2.5-6V, converting the initial input voltage into a voltage of 5.5V when the initial input voltage is 2.5-5.5V, and entering a bypass mode when the initial input voltage is 5.5-6V;
the second buck converter is used for receiving the 5.5V voltage output by the boost converter and converting the 5.5V voltage into 3.3V voltage;
the shunt regulator is used for receiving the 3.3V voltage output by the second buck converter and converting the voltage into 2.8V voltage;
the inverting buck converter is used for receiving the 5.5V voltage output by the boost converter and converting the 5.5V voltage into-2.5V voltage;
the VDD pin of the micro control unit is connected with 1.8V voltage output by the first buck converter, the VDDA pin and the VREF+ pin of the micro control unit are respectively connected with 2.8V voltage output by the shunt regulator, the micro control unit comprises a DAC module, and the input end of the DAC module is connected with 2.8V voltage output by the shunt regulator;
each voltage output circuit comprises an operational amplifier, a first resistor, a second resistor, a third resistor and an MOS tube, wherein the positive electrode of a power supply of the operational amplifier is connected with the voltage of 3.3V output by the second buck converter, the negative electrode of the power supply of the operational amplifier is connected with the voltage of-2.5V output by the inverting buck converter, the in-phase input end of the operational amplifier is connected with the 0.86V bias voltage output by the DAC module, the reverse input end of the operational amplifier is connected with the reference voltage output by the DAC module through the first resistor, the reverse input end of the operational amplifier is connected with the output end of the operational amplifier through the second resistor, the enabling end of the operational amplifier is connected with the voltage of-2.5V output by the inverting buck converter through the third resistor, the input end of the MOS tube is connected with the voltage of 1.8V output by the first buck converter, the output end of the MOS tube is connected with the enabling end of the operational amplifier, the control end of the MOS tube is connected with the GPIO pin of the DAC module, and the output voltage of the DAC module is controlled by the micro control unit.
Preferably, the DAC module is an R-2R type DAC.
Preferably, the shunt regulator is model ATL431LI.
Preferably, the MOS tube is an N-type MOS tube or a P-type MOS tube.
Preferably, the boost converter is model MIC2877.
Preferably, the first buck converter is XCL232.
Preferably, the second buck converter is of the XCL206 type.
Preferably, the reverse buck converter is of the type TPS63710.
Preferably, the output voltage of the voltage output circuitThe method comprises the steps of carrying out a first treatment on the surface of the Wherein R is 1 Is the resistance value of the first resistor, R 2 Is the resistance value of the second resistor, V bias Is 0.86V bias voltage, V DAC And the reference voltage is output by the DAC module.
Compared with the prior art, the invention can generate multiple adjustable output voltages according to the initial input voltage output by the power supply through one micro control unit and multiple voltage output circuits to supply power to each component in the electronic precision equipment, so that the invention only needs one power supply, thereby simplifying the volume of the whole power supply system and reducing the power supply cost of the power supply system.
Drawings
FIG. 1 is a schematic diagram of a logic structure of a multi-channel voltage output adjustable power module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a voltage output circuit according to an embodiment of the present invention.
Reference numerals: the power supply 1, the boost converter 2, the first buck converter 3, the second buck converter 4, the micro control unit 5, the DAC module 51, the voltage output circuit 6, the operational amplifier 61, the first resistor 62, the second resistor 63, the third resistor 64, the MOS tube 65, the shunt regulator 7 and the inverting buck converter 8.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
Fig. 1 shows a logic structure of a multi-path voltage output adjustable power module according to an embodiment of the present invention.
As shown in fig. 1, the power module with adjustable multi-path voltage output provided by the embodiment of the invention comprises a power supply 1, a boost converter 2, a first buck converter 3, a second buck converter 4, a micro control unit 5, at least two voltage output circuits 6 with the same circuit structure and a shunt regulator 7; the power supply 1 is used for outputting 2.5-6V voltage as an initial input voltage of the power supply module; the model of the boost converter 2 is MIC2877, and is configured to receive an initial input voltage of 2.5V to 6V, when the initial input voltage is 2.5V to 5.5V, the boost converter 2 converts the initial input voltage into 5.5V, and supplies power to the second buck converter 4, and when the initial input voltage is 5.5V to 6V, the boost converter 2 enters a bypass mode, and effectively connects the input and the output of the boost converter 2; the second buck converter 4 is XCL206, and is configured to convert the 5.5V voltage output by the boost converter 2 into 3.3V voltage, and supply power to the shunt regulator 7; the shunt regulator 7 is ATL431LI, and is configured to convert the 3.3V voltage output by the second buck converter 4 into 2.8V voltage, and supply power to the VDDA pin and the vref+ pin of the micro control unit 5; the inverting buck converter 8 is configured to receive the 5.5V voltage output by the boost converter 2 and convert the 5.5V voltage to-2.5V voltage, and the model number of the inverting buck converter 8 is TPS63710; the model of the first buck converter 3 is XCL232, and is used for receiving an initial input voltage of 2.5V-6V, converting the initial input voltage into a voltage of 1.8V and supplying power to a VDD pin of the micro control unit 5; the micro control unit 5 can adjust the output voltage of each voltage output circuit 6, so as to be suitable for different types of electronic precision equipment and supply power for various components in the different types of electronic precision equipment.
The micro control unit 5 comprises a DAC module, and the input end of the DAC module is connected to the 2.8V voltage output by the shunt regulator 7.
The number of the voltage output circuits 6 is determined according to the number of components in the electronic precision apparatus, one component corresponding to each voltage output circuit 6. Since the circuit configuration of each voltage output circuit is the same, a specific circuit configuration will be described as an example.
Fig. 2 shows a circuit configuration of a voltage output circuit provided according to an embodiment of the present invention.
As shown in fig. 2, the voltage output circuit includes an operational amplifier 61, a first resistor 62, a second resistor 63, a third resistor 64 and a MOS tube 65, the positive electrode of the power supply of the operational amplifier 61 is connected to the 3.3V voltage output by the second buck converter, the negative electrode of the power supply of the operational amplifier 61 is connected to the-2.5V voltage output by the inverting buck converter, and the 3.3V voltage output by the second buck converter and the-2.5V voltage output by the inverting buck converter can provide a rail-to-rail voltage between-2.5V and 3.3V for the operational amplifier 61; the non-inverting input end of the operational amplifier 61 is connected with the output end of the DAC module 51, the inverting input end of the operational amplifier 61 is connected with the output end of the DAC module 51 through the first resistor 62, the inverting input end of the operational amplifier 61 is also connected with the output end of the operational amplifier 61 through the second resistor 63, the first resistor 62 and the second resistor 63 are arranged to provide initial gain for the voltage output circuit, and the resistors are connected in parallel at the two ends of the second resistor 63 to reduce the total resistance of the second resistor 63 and the parallel resistor, so that the output precision of the operational amplifier 61 is improved; the enabling end of the operational amplifier 61 is connected to the-2.5V voltage output by the inverting buck converter through the third resistor 64, the enabling end of the operational amplifier 61 is also connected to the GPIO pin of the micro-control unit through the MOS tube 65, the input end of the MOS tube 65 is connected to the 1.8V voltage output by the first buck converter, the output end of the MOS tube 65 is connected to the enabling end of the operational amplifier 61 (used for controlling the disabling or the activating of the operational amplifier 61), and the control end of the MOS tube 65 is connected to the GPIO pin of the micro-control unit.
The MOS tube 65 may be an N-type MOS tube or a P-type MOS tube, when the N-type MOS tube is adopted, the drain is connected to the 1.8V voltage output by the first buck converter, the source is connected to the enabling end of the operational amplifier 61, and the gate is connected to the GPIO pin of the micro control unit; when the P-type MOS tube is adopted, the source electrode is connected with 1.8V voltage output by the first buck converter, the drain electrode is connected with the enabling end of the operational amplifier 61, and the grid electrode is connected with the GPIO pin of the micro-control unit.
The third resistor 64 serves as a pull-down resistor to supply-1.9V to the operational amplifier 61 when the MOS transistor 65 is turned off to turn off the operational amplifier 61.
Since the inverting buck converter outputs a voltage of-2.5V, the enable needs to be less than-2.5+0.6 (the nature of the op-amp) v= -1.9V if the op-amp 61 is to be turned off. But the micro control unit cannot output a negative voltage, so the third resistor 64 needs to be used to pull the voltage to-1.9V.
The DAC module 51 outputs two circuit voltages simultaneously under the control of the micro control unit, one of which is the bias voltage V bias ，V bias A fixed voltage of 0.86V and a voltage of V at a node between the first resistor 62 and the second resistor 63 bias The other path is the reference voltage V DAC To the output of the operational amplifier 61.
Output voltage V of operational amplifier 61 CH The calculation formula of (2) is as follows:
；
wherein R is 1 R is the resistance of the first resistor 62 2 Is the resistance value of the second resistor 63, V DAC And the reference voltage is output by the DAC module.
Regulating the reference voltage V output by DAC module 51 by the micro control unit DAC The voltage value of the voltage output circuit can be adjusted CH . The manner in which the micro control unit 5 adjusts the reference voltage output by the DAC module 51 is the prior art, and thus will not be described in detail in the present invention.
As a preferred embodiment, DAC module 51 employs an R-2R type DAC. Since the architecture of the R-2R type DAC has the characteristic of low noise, V DAC The voltage can be increased without injecting additional noise into the circuit, thereby further reducing the noise carried by the output voltage.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (9)
1. The power module with the adjustable multipath voltage output is characterized by comprising a power supply, a boost converter, a shunt regulator, a first buck converter, a second buck converter, an inverting buck converter, a micro control unit and at least two voltage output circuits; wherein,
the power supply is used for outputting an initial input voltage of 2.5V-6V;
the first buck converter is used for receiving the initial input voltage of 2.5V-6V and converting the initial input voltage into 1.8V voltage;
the boost converter is used for receiving the initial input voltage of 2.5-6V, converting the initial input voltage into 5.5V voltage when the initial input voltage is 2.5-5.5V, and entering a bypass mode when the initial input voltage is 5.5-6V;
the second buck converter is used for receiving the 5.5V voltage output by the boost converter and converting the voltage into 3.3V voltage;
the shunt regulator is used for receiving the 3.3V voltage output by the second buck converter and converting the voltage into 2.8V voltage;
the inverting buck converter is used for receiving the 5.5V voltage output by the boost converter and converting the 5.5V voltage into-2.5V voltage;
the VDD pin of the micro control unit is connected with 1.8V voltage output by the first buck converter, the VDDA pin and VREF+ pin of the micro control unit are respectively connected with 2.8V voltage output by the shunt regulator, and the micro control unit comprises a DAC module, wherein the DAC module is used for receiving 2.8V voltage output by the shunt regulator;
each voltage output circuit comprises an operational amplifier, a first resistor, a second resistor, a third resistor and an MOS tube, wherein the positive electrode of a power supply of the operational amplifier is connected with the 3.3V voltage output by the second buck converter, the negative electrode of the power supply of the operational amplifier is connected with the-2.5V voltage output by the reverse buck converter, the non-inverting input end of the operational amplifier is connected with the 0.86V bias voltage output by the DAC module, the reverse input end of the operational amplifier is connected with the reference voltage output by the DAC module through the first resistor, the reverse input end of the operational amplifier is connected with the output end of the operational amplifier through the second resistor, the enabling end of the operational amplifier is connected with the-2.5V voltage output by the reverse buck converter through the third resistor, the enabling end of the operational amplifier is connected with the GPIO pin of the micro-control unit, the input end of the MOS tube is connected with the 1.8V voltage output by the first buck converter, the output end of the MOS tube is connected with the output end of the micro-control unit, and the voltage is connected with the micro-control unit through the GPIO pin of the micro-control unit.
2. The multi-channel voltage output adjustable power supply module according to claim 1, wherein the DAC module is an R-2R type DAC.
3. The multi-way voltage output adjustable power module of claim 1 wherein the shunt regulator is model ATL431LI.
4. The power module with adjustable multipath voltage output according to claim 1, wherein the MOS transistor is an N-type MOS transistor or a P-type MOS transistor.
5. The multi-way voltage output adjustable power module of claim 1 wherein the boost converter is model MIC2877.
6. The multi-path voltage output adjustable power module of claim 1 wherein the first buck converter is XCL232.
7. The multi-path voltage output adjustable power module of claim 1 wherein the second buck converter is of type XCL206.
8. The multi-way voltage output adjustable power supply module of claim 1 wherein the inverting buck converter is of type TPS63710.
9. The multi-path voltage output adjustable power supply module according to claim 1, wherein the output voltage of the voltage output circuitThe method comprises the steps of carrying out a first treatment on the surface of the Wherein R is 1 R is the resistance of the first resistor 2 V is the resistance of the second resistor bias Is 0.86V bias voltage, V DAC And the reference voltage is output by the DAC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311821393.8A CN117477953B (en) | 2023-12-27 | 2023-12-27 | Power module with adjustable multipath voltage output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311821393.8A CN117477953B (en) | 2023-12-27 | 2023-12-27 | Power module with adjustable multipath voltage output |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117477953A CN117477953A (en) | 2024-01-30 |
| CN117477953B true CN117477953B (en) | 2024-03-12 |
Family
ID=89631561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311821393.8A Active CN117477953B (en) | 2023-12-27 | 2023-12-27 | Power module with adjustable multipath voltage output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117477953B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005018677A (en) * | 2003-06-30 | 2005-01-20 | Nec Kansai Ltd | Power supply circuit |
| WO2015096223A1 (en) * | 2013-12-27 | 2015-07-02 | 深圳市航嘉驰源电气股份有限公司 | Power conversion circuit |
| CN105048773A (en) * | 2015-07-23 | 2015-11-11 | 深圳开立生物医疗科技股份有限公司 | Output voltage control circuit |
| CN204925206U (en) * | 2015-09-11 | 2015-12-30 | 西北师范大学 | Digital oscilloscope |
| CN208521200U (en) * | 2018-07-25 | 2019-02-19 | 深圳市普德新星电源技术有限公司 | Constant voltage constant current charging circuit and its current-limiting circuit |
| CN111474399A (en) * | 2020-05-19 | 2020-07-31 | 深圳淇诺科技有限公司 | High-voltage side large-current precise sampling conversion circuit |
| CN112510997A (en) * | 2020-11-17 | 2021-03-16 | 华中科技大学 | Hybrid booster circuit for energy collection system and control method |
| CN112684842A (en) * | 2020-12-04 | 2021-04-20 | 中国船舶重工集团公司第七一一研究所 | Current output circuit and current output device |
| CN113179016A (en) * | 2021-04-14 | 2021-07-27 | 苏州华兴源创科技股份有限公司 | Switching power supply circuit |
| CN113872603A (en) * | 2021-08-30 | 2021-12-31 | 北京时代民芯科技有限公司 | Dynamic power management circuit for controlling power supply of current type digital-to-analog converter |
| CN215580368U (en) * | 2021-07-15 | 2022-01-18 | 深圳和而泰智能控制股份有限公司 | Current limiting circuit |
| WO2022052585A1 (en) * | 2020-09-11 | 2022-03-17 | 苏州浪潮智能科技有限公司 | Buck circuit for dynamically adjusting output voltage, and dynamic adjustment method |
| CN115567005A (en) * | 2022-10-31 | 2023-01-03 | 电子科技大学 | Power self-adaptive Doherty power amplifier structure and design method |
| CN218633872U (en) * | 2022-11-09 | 2023-03-14 | 珠海格力智能装备有限公司 | AGC circuit and audio equipment thereof |
| CN117060224A (en) * | 2023-07-31 | 2023-11-14 | 武汉光迅科技股份有限公司 | Laser current drive control circuit and control method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7706160B2 (en) * | 2006-08-08 | 2010-04-27 | Marco Fontana | High voltage generator of the DAC-controlled type |
| TWI654871B (en) * | 2017-04-05 | 2019-03-21 | 立積電子股份有限公司 | Power control circuit and method thereof |
| US11277101B2 (en) * | 2020-03-06 | 2022-03-15 | Analog Devices International Unlimited Company | Current-to-voltage signal converter |
| US11569838B2 (en) * | 2020-04-09 | 2023-01-31 | Analog Devices International Unlimited Company | High efficiency current source/sink DAC |
-
2023
- 2023-12-27 CN CN202311821393.8A patent/CN117477953B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005018677A (en) * | 2003-06-30 | 2005-01-20 | Nec Kansai Ltd | Power supply circuit |
| WO2015096223A1 (en) * | 2013-12-27 | 2015-07-02 | 深圳市航嘉驰源电气股份有限公司 | Power conversion circuit |
| CN105048773A (en) * | 2015-07-23 | 2015-11-11 | 深圳开立生物医疗科技股份有限公司 | Output voltage control circuit |
| CN204925206U (en) * | 2015-09-11 | 2015-12-30 | 西北师范大学 | Digital oscilloscope |
| CN208521200U (en) * | 2018-07-25 | 2019-02-19 | 深圳市普德新星电源技术有限公司 | Constant voltage constant current charging circuit and its current-limiting circuit |
| CN111474399A (en) * | 2020-05-19 | 2020-07-31 | 深圳淇诺科技有限公司 | High-voltage side large-current precise sampling conversion circuit |
| WO2022052585A1 (en) * | 2020-09-11 | 2022-03-17 | 苏州浪潮智能科技有限公司 | Buck circuit for dynamically adjusting output voltage, and dynamic adjustment method |
| CN112510997A (en) * | 2020-11-17 | 2021-03-16 | 华中科技大学 | Hybrid booster circuit for energy collection system and control method |
| CN112684842A (en) * | 2020-12-04 | 2021-04-20 | 中国船舶重工集团公司第七一一研究所 | Current output circuit and current output device |
| CN113179016A (en) * | 2021-04-14 | 2021-07-27 | 苏州华兴源创科技股份有限公司 | Switching power supply circuit |
| CN215580368U (en) * | 2021-07-15 | 2022-01-18 | 深圳和而泰智能控制股份有限公司 | Current limiting circuit |
| CN113872603A (en) * | 2021-08-30 | 2021-12-31 | 北京时代民芯科技有限公司 | Dynamic power management circuit for controlling power supply of current type digital-to-analog converter |
| CN115567005A (en) * | 2022-10-31 | 2023-01-03 | 电子科技大学 | Power self-adaptive Doherty power amplifier structure and design method |
| CN218633872U (en) * | 2022-11-09 | 2023-03-14 | 珠海格力智能装备有限公司 | AGC circuit and audio equipment thereof |
| CN117060224A (en) * | 2023-07-31 | 2023-11-14 | 武汉光迅科技股份有限公司 | Laser current drive control circuit and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117477953A (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9921593B2 (en) | Wideband low dropout voltage regulator with power supply rejection boost | |
| CN108462476B (en) | Power amplifier and power control method thereof | |
| WO2016184169A1 (en) | Multi-channel dual-mode digital control led driving circuit and led lamp | |
| US8841893B2 (en) | Dual-loop voltage regulator architecture with high DC accuracy and fast response time | |
| WO2011010142A2 (en) | Level-shifter circuit | |
| CN102104365A (en) | Power amplifying circuit, DC-DC converter, peak holding circuit, and output voltage control circuit including the peak holding circuit | |
| CN104321964A (en) | Integrated start-up bias boost for dynamic error vector magnitude enhancement | |
| CN207249522U (en) | Regulator circuit | |
| CN104699158B (en) | Power supply circuit for constant current source | |
| CN116094467B (en) | Common mode feedback circuit, common mode feedback method and fully differential operational amplifier | |
| CN112148054A (en) | Feedback network circuit applied to LDO (low dropout regulator) with ultra-low voltage input and multi-voltage output | |
| CN109565242A (en) | Series circuit, circuit board and calculating equipment | |
| CN117477953B (en) | Power module with adjustable multipath voltage output | |
| CN107171650B (en) | Variable gain amplifier circuit | |
| TWI535196B (en) | Amplifier and method of operating the same | |
| CN117477954B (en) | Power module with adjustable multipath output voltage | |
| CN117060224A (en) | Laser current drive control circuit and control method | |
| JP4827858B2 (en) | Negative output regulator circuit and electrical equipment using the same | |
| CN108427472A (en) | A kind of reference voltage output circuit | |
| CN117477952B (en) | Power module with adjustable output based on multipath voltage | |
| CN117477951B (en) | Miniaturized power module | |
| CN210157086U (en) | Power supply voltage following device and computing equipment | |
| US20060267564A1 (en) | Power supply and a device for providing a control voltage that is substantially equivalent to a reference voltage used by the power supply | |
| Surkanti et al. | Multi-string LED driver with accurate current matching and dynamic cancellation of forward voltage mismatch | |
| CN111077937A (en) | Singlechip power supply circuit suitable for battery management 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 |