CN117411323B - Constant-voltage constant-current high-power DCDC power supply circuit - Google Patents
Constant-voltage constant-current high-power DCDC power supply circuit Download PDFInfo
- Publication number
- CN117411323B CN117411323B CN202311713312.2A CN202311713312A CN117411323B CN 117411323 B CN117411323 B CN 117411323B CN 202311713312 A CN202311713312 A CN 202311713312A CN 117411323 B CN117411323 B CN 117411323B
- Authority
- CN
- China
- Prior art keywords
- module
- power
- voltage
- current
- constant
- 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
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 title claims abstract 11
- 238000004146 energy storage Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 230000001276 controlling effect Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000011664 signaling Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 2
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005516 engineering process 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
-
- 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
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a constant-voltage constant-current high-power DCDC power supply circuit, which relates to the technical field of power supplies and comprises a power supply module for supplying power; the intelligent control module is used for signal receiving and module control; the power adjusting module is used for constant voltage and constant current adjustment; the output module is used for receiving electric energy and detecting current and voltage; the current feedback module is used for signal processing and undercurrent detection; the voltage feedback module is used for signal processing and undervoltage detection; the voltage regulating module is used for controlling the boosting discharge and the voltage reduction energy storage operation of the energy storage module; and the electric energy superposition control module is used for controlling the connection mode of the voltage regulation module and the power regulation module and providing compensation electric energy for the voltage regulation module. The constant-voltage constant-current high-power DCDC power supply circuit is characterized in that a power regulating module outputs constant voltage and constant current, and when the voltage is undervoltage, the electric energy output by the voltage regulating module after regulation is subjected to voltage compensation for the power regulating module through an electric energy superposition control module, and when the current is undercurrent, the current compensation is performed.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a constant-voltage constant-current high-power DCDC power supply circuit.
Background
The constant-voltage constant-current high-power DCDC (direct current to direct current) power supply circuit is widely applied to radar, electronic countermeasure and other complete machine systems, the existing constant-voltage constant-current high-power DCDC power supply mostly adopts a high-frequency electric energy conversion circuit composed of an inverter and a transformer, and the single chip microcomputer is matched with the detection of a current loop and a voltage loop to convert the electric energy input into the high-frequency electric energy conversion circuit from direct current to alternating current and then to direct current, and constant-voltage constant-current control is realized, but when the electric energy output by the high-frequency electric energy conversion circuit is under-voltage or under-current, the electric energy output by the high-frequency electric energy conversion circuit cannot be effectively regulated, so that the constant-current and constant-voltage regulation requirements of the constant-voltage constant-current high-power DCDC power supply cannot be met, the stability of the constant-voltage constant-current high-power DCDC power supply and the conversion efficiency of the electric energy are reduced, and therefore, the constant-voltage constant-current high-power DCDC power supply is to be improved.
Disclosure of Invention
The embodiment of the invention provides a constant-voltage constant-current high-power DCDC power supply circuit, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a constant voltage constant current high power DCDC power supply circuit comprising: the system comprises a power supply module, an intelligent control module, a power regulation module, an output module, a voltage feedback module, a current feedback module, an energy storage module, a voltage regulation module and an electric energy superposition control module;
the power module is used for accessing direct-current electric energy and carrying out filtering treatment;
The intelligent control module is connected with the power regulation module, the voltage regulation module, the current feedback module, the output module and the voltage feedback module, and is used for outputting a first pulse signal and controlling constant voltage and constant current regulation of the power regulation module, outputting a charge-discharge signal and controlling charge-discharge work of the voltage regulation module, receiving a third detection signal fed back by the output module and regulating the duty ratio of the first pulse signal, and receiving the first detection signal and the first control signal output by the current feedback module, and the second detection signal and the second control signal output by the voltage feedback module and regulating the duty ratio of the charge-discharge signal;
The power regulation module is connected with the power supply module and is used for receiving the electric energy output by the power supply module and the first pulse signal and carrying out constant-current regulation and constant-voltage regulation on the received electric energy;
The output module is connected with the power regulation module, is used for being connected with the electric load and receiving electric energy output by the power regulation module, is used for carrying out current detection on the current of the electric load and outputting a current signal, is used for carrying out voltage detection on the voltage of the electric load and outputting a voltage signal, and is used for setting a target current value and outputting a third detection signal when the current signal is smaller than the target current value;
the current feedback module is connected with the output module and used for carrying out current-voltage conversion processing on the current signal, outputting a first detection signal, setting a current-lack threshold value and outputting a first control signal when the first detection signal is smaller than the current-lack threshold value;
The voltage feedback module is connected with the output module and used for carrying out signal amplification filtering processing on the voltage signal, outputting a second detection signal, setting an undervoltage threshold value and outputting a second control signal when the second detection signal is smaller than the undervoltage threshold value;
The voltage regulating module is connected with the energy storage module, the power supply module, the current feedback module, the voltage feedback module and the electric energy superposition control module and is used for receiving the first control signal, the second control signal and the charge and discharge signal, boosting the electric energy stored by the energy storage module, transmitting the boosted electric energy to the electric energy superposition control module, receiving the charge and discharge signal, reducing the voltage of the electric energy output by the power supply module and transmitting the stepped electric energy to the energy storage module;
the energy storage module is used for storing electric energy and releasing the electric energy;
The electric energy superposition control module is connected with the current feedback module, the voltage feedback module, the power regulation module and the output module and used for controlling the power regulation module to supply power for the output module, receiving the second control signal and controlling the voltage regulation module to perform constant current compensation processing on the electric energy output by the power regulation module and receiving the first control signal and controlling the voltage regulation module to perform constant voltage compensation processing on the electric energy output by the power regulation module.
As still further aspects of the invention: the power module comprises a power interface, a first inductor and a first capacitor; the power regulation module comprises a first inverter, a first transformer and a first rectifier; the intelligent control module comprises a first controller;
Preferably, the first end of the power interface is connected with the first end of the first capacitor and the first input end of the first inverter through the first inductor, the second end of the power interface, the second end of the first capacitor and the second input end of the first inverter are all grounded, the control end of the first inverter is connected with the IO1 end of the first controller, the first output end and the second output end of the first inverter are respectively connected with the first end and the second end of the primary side of the first transformer, and the first end and the second end of the secondary side of the first transformer are respectively connected with the output module and the electric energy superposition control module.
As still further aspects of the invention: the output module comprises an output port, a first resistor, a second resistor, a third resistor and an electric energy feedback device;
Preferably, the first end of the output port is connected with the first end of the second resistor and the first output end of the first rectifier, the second end of the output port is connected with the first end of the first resistor, the first input end of the electric energy feedback device and the current feedback module, the second end of the first resistor is connected with the voltage feedback module and the second end of the second resistor and the second input end of the electric energy feedback device through the third resistor, and the output end of the electric energy feedback device is connected with the IO4 end of the first controller.
As still further aspects of the invention: the voltage regulating module comprises a fourth power tube, a fifth power tube, a second inductor, a sixth power tube, a first diode, a third diode and a second diode; the energy storage module comprises an energy storage device;
Preferably, one end of the energy storage device is connected with the drain electrode of the fifth power tube, the source electrode of the fifth power tube is connected with the source electrode of the fourth power tube, the drain electrode of the sixth power tube and the anode of the first diode through the second inductor, the cathode of the first diode is connected with the electric energy superposition control module, the other end of the energy storage device and the source electrode of the sixth power tube are grounded, the grid electrode of the fifth power tube is connected with the cathode of the third diode and the cathode of the second diode, the grid electrode of the fourth power tube and the grid electrode of the sixth power tube are respectively connected with the IO2 end and the IO3 end of the first controller, the anode of the third diode and the anode of the second diode are respectively connected with the current feedback module and the voltage feedback module, and the drain electrode of the fourth power tube is connected with the first end of the first capacitor.
As still further aspects of the invention: the electric energy superposition control module comprises a first power tube, a second power tube, a third power tube, a fourth resistor, a fifth resistor and a first power supply;
Preferably, the drain electrode of the first power tube and the drain electrode of the second power tube are both connected with the cathode of the first diode, the source electrode of the first power tube is connected with the source electrode of the third power tube and the second output end of the first rectifier, the grid electrode of the first power tube is connected with the grid electrode of the third power tube, the anode of the second diode and the voltage feedback module, one end of the fifth resistor and the first power supply are connected through the fourth resistor, the other end of the fifth resistor is connected with the grid electrode of the second power tube, the anode of the third diode and the current feedback module, the source electrode of the second power tube is connected with the first output end of the first rectifier, and the drain electrode of the third power tube is connected with the source electrode of the sixth power tube.
As still further aspects of the invention: the voltage feedback module comprises an amplifying and filtering device, a first comparator, a first threshold device and a sixth resistor;
Preferably, the first end of the amplifying and filtering device is connected with the second end of the second resistor, the second end of the amplifying and filtering device is connected with the IO5 end of the first controller and the inverting end of the first comparator, the in-phase end of the first comparator is connected with the first threshold device, and the output end of the first comparator is connected with the grid electrode of the first power tube and is connected with the IO7 end of the first controller through the sixth resistor.
As still further aspects of the invention: the current feedback module comprises a signal conversion device, a second threshold device, a second comparator and a seventh resistor;
Preferably, the first end of the signal conversion device is connected with the second end of the output port, the second end of the signal conversion device is connected with the inverting end of the second comparator and the IO6 end of the first controller, the in-phase end of the first controller is connected with the second threshold device, and the output end of the second comparator is connected with the grid electrode of the second power tube and is connected with the IO8 end of the first controller through the seventh resistor.
Compared with the prior art, the invention has the beneficial effects that: the intelligent control module controls the power regulating module to output constant voltage and constant current according to the signals fed back by the output module, the voltage feedback module and the current feedback module detect undervoltage and undercurrent, the electric energy superposition control module controls the voltage regulating module to regulate DC-DC and perform voltage compensation processing on electric energy output by the power regulating module during undervoltage, and the electric energy superposition control module controls the voltage regulating module to perform current compensation processing on the electric energy output by the power regulating module during undervoltage, so that the stability of the constant voltage and constant current power supply is improved, and the conversion efficiency of the electric energy is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a constant voltage and constant current high power DCDC power supply circuit according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a constant voltage and constant current high power DCDC power supply circuit according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a connection of a voltage feedback module according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a connection of a current feedback module according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment, referring to fig. 1, a constant voltage constant current high power DCDC power supply circuit includes: the system comprises a power supply module 1, an intelligent control module 2, a power regulation module 3, an output module 4, a voltage feedback module 5, a current feedback module 6, an energy storage module 7, a voltage regulation module 8 and an electric energy superposition control module 9;
The power module 1 is used for accessing direct-current electric energy and performing filtering treatment;
The intelligent control module 2 is connected with the power regulation module 3, the voltage regulation module 8, the current feedback module 6, the output module 4 and the voltage feedback module 5, and is used for outputting a first pulse signal and controlling constant voltage and constant current regulation of the power regulation module 3, outputting a charge-discharge signal and controlling charge-discharge operation of the voltage regulation module 8, receiving a third detection signal fed back by the output module 4 and regulating the duty ratio of the first pulse signal, and receiving the first detection signal and the first control signal output by the current feedback module 6, and receiving a second detection signal and the second control signal output by the voltage feedback module 5 and regulating the duty ratio of the charge-discharge signal;
the power regulation module 3 is connected with the power module 1 and is used for receiving the electric energy output by the power module 1 and the first pulse signal and carrying out constant-current regulation and constant-voltage regulation on the received electric energy;
The output module 4 is connected with the power regulation module 3, is used for being connected with an electric load and receiving electric energy output by the power regulation module 3, is used for carrying out current detection on current of the electric load and outputting a current signal, is used for carrying out voltage detection on voltage of the electric load and outputting a voltage signal, and is used for setting a target current value and outputting a third detection signal when the current signal is smaller than the target current value;
The current feedback module 6 is connected with the output module 4 and is used for performing current-voltage conversion processing on the current signal, outputting a first detection signal, setting a current-starving threshold value and outputting a first control signal when the first detection signal is smaller than the current-starving threshold value;
the voltage feedback module 5 is connected with the output module 4 and is used for carrying out signal amplification and filtering processing on the voltage signal, outputting a second detection signal, setting an undervoltage threshold value and outputting a second control signal when the second detection signal is smaller than the undervoltage threshold value;
the voltage adjusting module 8 is connected with the energy storage module 7, the power supply module 1, the current feedback module 6, the voltage feedback module 5 and the electric energy superposition control module 9, and is used for receiving the first control signal, the second control signal and the charge and discharge signal, boosting the electric energy stored in the energy storage module 7, transmitting the boosted electric energy to the electric energy superposition control module 9, receiving the charge and discharge signal, reducing the voltage of the electric energy output by the power supply module 1, and transmitting the boosted electric energy to the energy storage module 7;
An energy storage module 7 for electric energy storage and electric energy release;
The electric energy superposition control module 9 is connected with the current feedback module 6, the voltage feedback module 5, the power regulation module 3 and the output module 4, and is used for controlling the power regulation module 3 to supply power for the output module 4, receiving a second control signal and controlling the voltage regulation module 8 to perform constant current compensation processing on the electric energy output by the power regulation module 3, and receiving a first control signal and controlling the voltage regulation module 8 to perform constant voltage compensation processing on the electric energy output by the power regulation module 3.
In a specific embodiment, the power module 1 may adopt a power circuit composed of a power interface and a filter, and is connected with dc power and performs filtering processing on the power; the intelligent control module 2 can adopt an intelligent control circuit, integrates a plurality of components such as an arithmetic unit, a controller, a memory, an input/output unit and the like, realizes functions such as signal processing, data storage, module control, timing control and the like, adjusts the duty ratio of an output signal according to a received signal, and realizes control of the module; the power regulating module 3 can adopt a power regulating circuit consisting of an inverter, a transformer and a rectifier to realize that electric energy is converted from direct current to direct current; the output module 4 can adopt an output circuit composed of an output port, a resistor, an electric energy feedback device and the like, can be connected with an electric load, respectively detects the input electric energy voltage and the flowing electric energy current, sets a target current value, controls the intelligent control module 2 to adjust the duty ratio of the output first pulse signal according to the magnitude relation between the detected current signal and the target current value, and realizes constant-current and constant-voltage control on the power adjustment module 3, specifically, when the current value exceeds the target current value, constant-current control is carried out, and when the current value is lower than the target current value, constant-voltage processing is carried out; the voltage feedback module 5 can adopt a voltage feedback circuit composed of a comparator, an amplifying and filtering device and the like to amplify and filter an input signal and detect undervoltage; the current feedback module 6 can adopt a current feedback circuit formed by a comparator, a signal conversion device and the like to perform current-voltage conversion, filtering and undercurrent detection on an input signal; the energy storage module 7 can adopt an energy storage circuit to realize electric energy storage and release; the voltage regulating module 8 can adopt a voltage regulating circuit composed of a power tube, an inductor, a diode and the like, and can realize the control of boosting discharge and voltage reduction energy storage of the energy storage module 7; the power superposition control module 9 can adopt a power tube, a resistor and the like to form a power superposition control circuit, and control the connection state of the voltage regulating module 8 and the power regulating module 3.
In another embodiment, referring to fig. 1,2,3 and 4, the power module 1 includes a power interface, a first inductor L1 and a first capacitor C1; the power regulation module 3 comprises a first inverter T1, a first transformer B1 and a first rectifier T2; the intelligent control module 2 comprises a first controller U1;
Specifically, a first end of the power interface is connected with a first end of the first capacitor C1 and a first input end of the first inverter T1 through the first inductor L1, a second end of the power interface, a second end of the first capacitor C1 and a second input end of the first inverter T1 are all grounded, a control end of the first inverter T1 is connected with an IO1 end of the first controller U1, a first output end and a second output end of the first inverter T1 are respectively connected with a first end and a second end of a primary side of the first transformer B1, and a first end and a second end of a secondary side of the first transformer B1 are respectively connected with the output module 4 and the electric energy superposition control module 9.
In a specific embodiment, the first inductor L1 and the first capacitor C1 form a filter, and perform filtering processing; the first inverter T1 may be a single-phase inverter formed by IGBTs; the first rectifier T2 may be a full-wave rectifier; the first controller U1 can be an STM32 singlechip.
Further, the output module 4 includes an output port, a first resistor R1, a second resistor R2, a third resistor R3, and an electric energy feedback device;
Specifically, the first end of the output port is connected to the first end of the second resistor R2 and the first output end of the first rectifier T2, the second end of the output port is connected to the first end of the first resistor R1, the first input end of the electric energy feedback device and the current feedback module 6, the second end of the first resistor R1 is connected to the second ends of the voltage feedback module 5 and the second resistor R2 and the second input end of the electric energy feedback device through the third resistor R3, and the output end of the electric energy feedback device is connected to the IO4 end of the first controller U1.
In a specific embodiment, the first resistor R1 is used for current detection, and the second resistor R2 and the third resistor R3 are used for voltage detection; the electric energy feedback device can be composed of a voltage loop and a current loop controller, wherein the voltage loop and the current loop controller are composed of operational amplifiers, a target current value can be set, and constant current and constant voltage adjustment of the power adjustment module 3 is completed according to the relation between the detected current signal and the target current value, and the details are not repeated here.
Further, the voltage regulating module 8 includes a fourth power transistor Q4, a fifth power transistor Q5, a second inductor L2, a sixth power transistor Q6, a first diode D1, a third diode D3, and a second diode D2; the energy storage module 7 comprises an energy storage device;
Specifically, one end of the energy storage device is connected to the drain electrode of the fifth power tube Q5, the source electrode of the fifth power tube Q5 is connected to the source electrode of the fourth power tube Q4, the drain electrode of the sixth power tube Q6 and the anode of the first diode D1 through the second inductor L2, the cathode of the first diode D1 is connected to the electric energy superposition control module 9, the other end of the energy storage device and the source electrode of the sixth power tube Q6 are grounded, the gate electrode of the fifth power tube Q5 is connected to the cathode of the third diode D3 and the cathode of the second diode D2, the gate electrode of the fourth power tube Q4 and the gate electrode of the sixth power tube Q6 are respectively connected to the IO2 end and the IO3 end of the first controller U1, the anode of the third diode D3 and the anode of the second diode D2 are respectively connected to the current feedback module 6 and the voltage feedback module 5, and the drain electrode of the fourth power tube Q4 is connected to the first end of the first capacitor C1.
In a specific embodiment, the fourth power transistor Q4, the fifth power transistor Q5, and the sixth power transistor Q6 may be N-channel field effect transistors, where the fourth power transistor Q4 is matched with the second inductor L2, the seventh diode, and the fifth diode to perform the step-down processing, and the seventh diode is matched with the second inductor L2, the fifth power transistor Q5, and the first diode D1 to perform the step-up processing.
Further, the electric energy superposition control module 9 includes a first power tube Q1, a second power tube Q2, a third power tube Q3, a fourth resistor R4, a fifth resistor R5 and a first power supply VCC1;
Specifically, the drain electrode of the first power tube Q1 and the drain electrode of the second power tube Q2 are both connected to the cathode of the first diode D1, the source electrode of the first power tube Q1 is connected to the source electrode of the third power tube Q3 and the second output end of the first rectifier T2, the gate electrode of the first power tube Q1 is connected to the gate electrode of the third power tube Q3, the anode of the second diode D2 and the voltage feedback module 5, one end of the fifth resistor R5 is connected to the first power VCC1 through the fourth resistor R4, the other end of the fifth resistor R5 is connected to the gate electrode of the second power tube Q2, the anode of the third diode D3 and the current feedback module 6, the source electrode of the second power tube Q2 is connected to the first output end of the first rectifier T2, and the drain electrode of the third power tube Q3 is connected to the source electrode of the sixth power tube Q6.
In a specific embodiment, the first power tube Q1 and the second power tube Q2 may both use N-channel field effect transistors, the third power tube Q3 may use P-channel field effect transistors, the third power tube Q3 controls the power supply of the power adjustment module 3, the first power tube Q1 controls the constant current and the boost operation of the power adjustment module 3 and the voltage adjustment module 8, and the second power tube Q2 controls the constant voltage and the boost operation of the power adjustment module 3 and the voltage adjustment module 8.
Further, the voltage feedback module 5 includes an amplifying filter device, a first comparator A1, a first threshold device, and a sixth resistor R6;
Specifically, a first end of the amplifying and filtering device is connected to a second end of the second resistor R2, a second end of the amplifying and filtering device is connected to an IO5 end of the first controller U1 and an inverting end of the first comparator A1, an in-phase end of the first comparator A1 is connected to the first threshold device, and an output end of the first comparator A1 is connected to a gate of the first power tube Q1 and is connected to an IO7 end of the first controller U1 through a sixth resistor R6.
In a specific embodiment, the amplifying and filtering device may be composed of an operational amplifier, a resistor and a capacitor, and amplify and filter an input signal; the first comparator A1 may be an LM397 comparator; the first threshold means may comprise a resistive divider circuit providing an under-voltage threshold.
Further, the current feedback module 6 comprises signal conversion means, second threshold means, a second comparator A2 and a seventh resistor R7;
Specifically, a first end of the signal conversion device is connected to a second end of the output port, a second end of the signal conversion device is connected to an inverting end of the second comparator A2 and an IO6 end of the first controller U1, an in-phase end of the first controller U1 is connected to the second threshold device, and an output end of the second comparator A2 is connected to a gate of the second power tube Q2 and is connected to an IO8 end of the first controller U1 through a seventh resistor R7.
In a specific embodiment, the signal conversion device may be formed by an operational amplifier, a resistor, and the like, and converts a current signal into a voltage signal; the second comparator A2 may be an LM397 comparator; the second threshold means may employ a resistive divider circuit to provide the undercurrent threshold.
In the constant-voltage constant-current high-power DCDC power supply circuit, direct-current electric energy is connected to a power port, filtering processing is carried out by a first inductor L1 and a first capacitor C1, inversion and rectification processing are realized by a first inverter T1, a first transformer B1 and a first rectifier T2, DC-AC-DC voltage regulation work is completed, the first controller U1 controls the first inverter T1 to work in a constant-voltage output mode according to signals fed back by an electric energy feedback device, namely when a current signal flowing through an output port is larger than a target current value, and when the current signal flowing through the output port is smaller than the target current value, the first controller U1 controls the first inverter T1 to work in a constant-current output mode, so that the power supply stably works in the constant-voltage constant-current mode, and simultaneously, under-voltage threshold value provided by the first comparator A1 in cooperation with a first threshold value device is detected in an under-voltage mode, when under-voltage occurs, the first comparator A1 outputs high level and controls the first power tube Q1 to be conducted, the third power tube Q3 to be controlled to be cut off, the fifth power tube Q5 to be conducted, the first controller U1 controls the sixth power tube Q6 to be conducted, the fifth power tube Q5 transmits electric energy output by the energy storage device, the sixth power tube Q6 is matched with the second inductor L2 and the first diode D1 to conduct DC-DC boosting treatment and is in series connection with the first rectifier T2 to supply power, the voltage of an input and output port is improved, the second comparator A2 is matched with the undercurrent threshold provided by the second threshold device to conduct undercurrent detection, when undercurrent occurs, the second comparator A2 outputs high level and controls the conduction of the fifth power tube Q5 and the second power tube Q2, the energy storage device is in parallel connection with the electric energy output by the first rectifier T2 through the electric energy after DC-DC boosting, when the first comparator A1 and the second comparator A2 output low levels, the first controller U1 controls the fourth power tube Q4 to be conducted, and the second power tube Q2, the sixth power tube Q6 and the fifth power tube Q5 are matched to conduct DC-DC voltage reduction processing and provide electric energy for the energy storage device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A constant-voltage constant-current high-power DCDC power supply circuit is characterized in that,
The constant-voltage constant-current high-power DCDC power supply circuit comprises: the system comprises a power supply module, an intelligent control module, a power regulation module, an output module, a voltage feedback module, a current feedback module, an energy storage module, a voltage regulation module and an electric energy superposition control module;
The power supply module is used for accessing direct-current electric energy and performing filtering treatment;
The intelligent control module is connected with the power regulation module, the voltage regulation module, the current feedback module, the output module and the voltage feedback module, and is used for outputting a first pulse signal and controlling constant voltage and constant current regulation of the power regulation module, outputting a charge-discharge signal and controlling charge-discharge operation of the voltage regulation module, receiving a third detection signal fed back by the output module and regulating the duty ratio of the first pulse signal, and receiving the first detection signal and the first control signal which are output by the current feedback module, and the second detection signal and the second control signal which are output by the voltage feedback module and regulating the duty ratio of the charge-discharge signal;
The power regulation module is connected with the power supply module and is used for receiving the electric energy output by the power supply module and the first pulse signal and carrying out constant-current regulation and constant-voltage regulation on the received electric energy;
The output module is connected with the power regulation module, is used for being connected with the electric load and receiving electric energy output by the power regulation module, is used for carrying out current detection on the current of the electric load and outputting a current signal, is used for carrying out voltage detection on the voltage of the electric load and outputting a voltage signal, and is used for setting a target current value and outputting a third detection signal when the current signal is smaller than the target current value;
The current feedback module is connected with the output module and used for carrying out current-voltage conversion processing on the current signal, outputting a first detection signal, setting a current-lack threshold value and outputting a first control signal when the first detection signal is smaller than the current-lack threshold value;
the voltage feedback module is connected with the output module and is used for carrying out signal amplification and filtering processing on the voltage signal, outputting a second detection signal, setting an undervoltage threshold value and outputting a second control signal when the second detection signal is smaller than the undervoltage threshold value;
the voltage regulating module is connected with the energy storage module, the power supply module, the current feedback module, the voltage feedback module and the electric energy superposition control module, and is used for receiving the first control signal, the second control signal and the charge and discharge signal, boosting the electric energy stored in the energy storage module, transmitting the boosted electric energy to the electric energy superposition control module, receiving the charge and discharge signal, reducing the voltage of the electric energy output by the power supply module and transmitting the stepped electric energy to the energy storage module;
The energy storage module is used for storing electric energy and releasing the electric energy;
The electric energy superposition control module is connected with the current feedback module, the voltage feedback module, the power regulation module and the output module, and is used for controlling the power regulation module to supply power for the output module, receiving the second control signal and controlling the voltage regulation module to perform constant current compensation processing on the electric energy output by the power regulation module, and receiving the first control signal and controlling the voltage regulation module to perform constant voltage compensation processing on the electric energy output by the power regulation module.
2. The constant voltage and constant current high power DCDC power supply circuit of claim 1, wherein said power module comprises a power interface, a first inductor and a first capacitor; the power regulation module comprises a first inverter, a first transformer and a first rectifier; the intelligent control module comprises a first controller;
The first end of power source connects the first end of first electric capacity and the first input of first dc-to-ac converter through first inductance, and the second end of power source, the second end of first electric capacity and the second input of first dc-to-ac converter all ground, and the IO1 end of first controller is connected to the control end of first dc-to-ac converter, and the first end and the second end of primary side of first transformer are connected respectively to the first output of first dc-to-ac converter and second output, and output module and electric energy stack control module are connected respectively to the first end of secondary side of first transformer and second.
3. The constant voltage and constant current high power DCDC power supply circuit according to claim 2, wherein the output module comprises an output port, a first resistor, a second resistor, a third resistor and a power feedback device;
The first end of the output port is connected with the first end of the second resistor and the first output end of the first rectifier, the second end of the output port is connected with the first end of the first resistor, the first input end of the electric energy feedback device and the current feedback module, the second end of the first resistor is connected with the voltage feedback module and the second end of the second resistor and the second input end of the electric energy feedback device through the third resistor, and the output end of the electric energy feedback device is connected with the IO4 end of the first controller.
4. A constant voltage constant current high power DCDC power supply circuit according to claim 3, wherein said voltage regulation module comprises a fourth power transistor, a fifth power transistor, a second inductor, a sixth power transistor, a first diode, a third diode and a second diode; the energy storage module comprises an energy storage device;
One end of the energy storage device is connected with the drain electrode of the fifth power tube, the source electrode of the fifth power tube is connected with the source electrode of the fourth power tube, the drain electrode of the sixth power tube and the anode of the first diode through the second inductor, the cathode of the first diode is connected with the electric energy superposition control module, the other end of the energy storage device and the source electrode of the sixth power tube are grounded, the grid electrode of the fifth power tube is connected with the cathode of the third diode and the cathode of the second diode, the grid electrode of the fourth power tube and the grid electrode of the sixth power tube are respectively connected with the IO2 end and the IO3 end of the first controller, the anode of the third diode and the anode of the second diode are respectively connected with the current feedback module and the voltage feedback module, and the drain electrode of the fourth power tube is connected with the first end of the first capacitor.
5. The constant voltage and constant current high-power DCDC power supply circuit according to claim 4, wherein the power superposition control module comprises a first power tube, a second power tube, a third power tube, a fourth resistor, a fifth resistor and a first power supply;
The drain electrode of the first power tube and the drain electrode of the second power tube are both connected with the cathode of the first diode, the source electrode of the first power tube is connected with the source electrode of the third power tube and the second output end of the first rectifier, the grid electrode of the first power tube is connected with the grid electrode of the third power tube, the anode of the second diode and the voltage feedback module and is connected with one end of the fifth resistor and the first power supply through the fourth resistor, the other end of the fifth resistor is connected with the grid electrode of the second power tube, the anode of the third diode and the current feedback module, the source electrode of the second power tube is connected with the first output end of the first rectifier, and the drain electrode of the third power tube is connected with the source electrode of the sixth power tube.
6. The constant voltage and constant current high power DCDC power supply circuit according to claim 5, wherein the voltage feedback module includes an amplifying and filtering device, a first comparator, a first threshold device and a sixth resistor;
The first end of the amplifying and filtering device is connected with the second end of the second resistor, the second end of the amplifying and filtering device is connected with the IO5 end of the first controller and the inverting end of the first comparator, the in-phase end of the first comparator is connected with the first threshold device, and the output end of the first comparator is connected with the grid electrode of the first power tube and is connected with the IO7 end of the first controller through the sixth resistor.
7. The constant voltage, constant current, high power DCDC power supply circuit of claim 5, wherein said current feedback module comprises signal conversion means, second threshold means, second comparator and seventh resistor;
The first end of the signal conversion device is connected with the second end of the output port, the second end of the signal conversion device is connected with the inverting end of the second comparator and the IO6 end of the first controller, the in-phase end of the first controller is connected with the second threshold device, and the output end of the second comparator is connected with the grid electrode of the second power tube and is connected with the IO8 end of the first controller through the seventh resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311713312.2A CN117411323B (en) | 2023-12-14 | 2023-12-14 | Constant-voltage constant-current high-power DCDC power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311713312.2A CN117411323B (en) | 2023-12-14 | 2023-12-14 | Constant-voltage constant-current high-power DCDC power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117411323A CN117411323A (en) | 2024-01-16 |
| CN117411323B true CN117411323B (en) | 2024-04-26 |
Family
ID=89492853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311713312.2A Active CN117411323B (en) | 2023-12-14 | 2023-12-14 | Constant-voltage constant-current high-power DCDC power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117411323B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118117891B (en) * | 2024-02-27 | 2024-10-01 | 深圳核力新能源科技有限公司 | DC-DC converter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0731141A (en) * | 1993-02-17 | 1995-01-31 | Stanley Electric Co Ltd | Constant voltage circuit |
| JP2007185066A (en) * | 2006-01-10 | 2007-07-19 | Rohm Co Ltd | Power supply and electronic device with same |
| CN105554954A (en) * | 2016-01-26 | 2016-05-04 | 佛山市南海区联合广东新光源产业创新中心 | Control chip for LED (Light-Emitting Diode) driving |
| CN106374599A (en) * | 2016-09-12 | 2017-02-01 | 贵州裕隆实业有限公司 | Intelligent charger of electromobile |
| CN114337288A (en) * | 2020-09-29 | 2022-04-12 | 万国半导体国际有限合伙公司 | Isolated converter having constant voltage mode and constant current mode and control method thereof |
| CN218829575U (en) * | 2022-10-24 | 2023-04-07 | 安徽陆科电气有限公司 | Constant voltage, constant current, constant power, constant frequency and constant temperature alternating current power supply circuit |
| CN116984709A (en) * | 2023-09-26 | 2023-11-03 | 深圳比斯特自动化设备有限公司 | High-frequency inversion direct-current welding power supply circuit |
-
2023
- 2023-12-14 CN CN202311713312.2A patent/CN117411323B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0731141A (en) * | 1993-02-17 | 1995-01-31 | Stanley Electric Co Ltd | Constant voltage circuit |
| JP2007185066A (en) * | 2006-01-10 | 2007-07-19 | Rohm Co Ltd | Power supply and electronic device with same |
| CN105554954A (en) * | 2016-01-26 | 2016-05-04 | 佛山市南海区联合广东新光源产业创新中心 | Control chip for LED (Light-Emitting Diode) driving |
| CN106374599A (en) * | 2016-09-12 | 2017-02-01 | 贵州裕隆实业有限公司 | Intelligent charger of electromobile |
| CN114337288A (en) * | 2020-09-29 | 2022-04-12 | 万国半导体国际有限合伙公司 | Isolated converter having constant voltage mode and constant current mode and control method thereof |
| CN218829575U (en) * | 2022-10-24 | 2023-04-07 | 安徽陆科电气有限公司 | Constant voltage, constant current, constant power, constant frequency and constant temperature alternating current power supply circuit |
| CN116984709A (en) * | 2023-09-26 | 2023-11-03 | 深圳比斯特自动化设备有限公司 | High-frequency inversion direct-current welding power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117411323A (en) | 2024-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202798467U (en) | DC/DC converter, power supply device applying DC/DC converter, and electronic device | |
| EP2230755B1 (en) | Charge current reduction for current limited switched power supply | |
| CN101741244B (en) | Method and apparatus to increase efficiency in a power factor correction circuit | |
| CN117411323B (en) | Constant-voltage constant-current high-power DCDC power supply circuit | |
| EP3282571B1 (en) | Power converter with extended hold-up time | |
| US10374447B2 (en) | Power converter circuit including at least one battery | |
| US7199552B2 (en) | Control circuit apparatus and power supply circuit control method | |
| US20120049772A1 (en) | Controlling a bidirectional dc-to-dc converter | |
| CN101471602B (en) | Bidirectional DC power supply circuit | |
| US20060119184A1 (en) | Methods and apparatus providing double conversion/series-parallel hybrid operation in uninterruptible power supplies | |
| CN101499675A (en) | Charging circuit and power supply system | |
| CA2646226A1 (en) | Bidirectional buck boost dc-dc converter, railway coach drive control system, and railway feeder system | |
| US10432097B2 (en) | Selection control for transformer winding input in a power converter | |
| US20110074379A1 (en) | Dc-dc converter | |
| EP4125201A1 (en) | Three-level direct current converter, power supply system, and chip | |
| CN118117891B (en) | DC-DC converter | |
| US9219376B2 (en) | Charging circuit with current regulation | |
| CN117435024B (en) | Safe power supply control circuit of mainboard | |
| US9515575B2 (en) | Power conversion apparatus and power conversion method | |
| CN216672596U (en) | Reverse connection preventing circuit, automatic charger robot and charging system | |
| CN112583081B (en) | Quick wireless charging circuit of battery | |
| CN112467995A (en) | High-efficiency energy-saving frequency-conversion voltage-regulation energy-recovery type electronic load device | |
| CN203086337U (en) | PWM signal generator used for DC/DC converter and corresponding DC/DC converter | |
| US10224806B1 (en) | Power converter with selective transformer winding input | |
| CN213243567U (en) | Constant-current voltage-limiting super capacitor charging circuit applied to products in power industry |
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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528400, 3rd to 5th floors, Building A, Innovation Center, Xiwan National Major Instrument Science Park, No. 34 Xiangshan Avenue, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, China Patentee after: Hewei Shengtai Technology Co.,Ltd. Country or region after: China Address before: Room 501, Building D, Chuangxuan Industrial Park, Baihua Community, Guangming Street, Guangming District, Shenzhen, Guangdong 518000 Patentee before: Hewei Shengtai Technology Co.,Ltd. Country or region before: China |