CN112234672A - Intelligent charging circuit for portable power supply - Google Patents
Intelligent charging circuit for portable power supply Download PDFInfo
- Publication number
- CN112234672A CN112234672A CN202011065089.1A CN202011065089A CN112234672A CN 112234672 A CN112234672 A CN 112234672A CN 202011065089 A CN202011065089 A CN 202011065089A CN 112234672 A CN112234672 A CN 112234672A
- Authority
- CN
- China
- Prior art keywords
- resistor
- diode
- power supply
- output
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an intelligent charging circuit for a portable power supply, which comprises a single chip microcomputer, a first current and voltage detection module, a battery pack, a sine wave generator, an IGBT (insulated gate bipolar transistor) driving module, an H bridge and an alternating current output starting circuit alternating current control input end, wherein the control output end of the alternating current output starting circuit is connected with the H bridge power supply voltage input end, the overcurrent protection control output end of the single chip microcomputer is connected with the overcurrent protection input end of an overcurrent protection module, and the overcurrent protection signal output end of the overcurrent protection module is connected with the overcurrent protection input end of the sine wave generator; the positive pole of the battery pack is connected with the signal input end of the alternating current output starting circuit, the signal input end of the battery pack charging circuit and the signal input end of the switching power supply, the signal output end of the alternating current output starting circuit is connected with the voltage input end of the H-bridge power supply, and the charging management signal of the single chip microcomputer is connected with the signal input end of the charging protection control circuit. The invention also provides a control method capable of outputting the alternating current and the direct current, which can stabilize the direct current voltage and the alternating current voltage.
Description
Technical Field
The invention relates to the technical field of portable power supply, in particular to an intelligent charging circuit for a portable power supply.
Background
With the development of society, electric power is essential in daily life and work, but a series of problems such as outdoor power utilization, equipment power backup and power failure are often encountered. Due to the problems of no electricity and power failure, the work cannot be continued, and the daily life of people is also influenced. Because the charging time is long, and when the power supply has residual electricity, the charging time cannot be accurately controlled, and therefore a portable power supply capable of intelligently charging is urgently needed.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art, and particularly innovatively provides an intelligent charging circuit for a portable power supply.
In order to achieve the purpose, the invention provides an intelligent charging circuit for a portable power supply, which comprises a single chip microcomputer, wherein a lithium battery protection data signal input end of the single chip microcomputer is connected with a battery pack protection data signal output end, the positive electrode of a battery pack is connected with a battery pack charging circuit signal input end, a charging management signal of the single chip microcomputer is connected with a charging protection control circuit signal input end, and a charging protection control circuit control output end is connected with a battery pack charging circuit control signal input end.
In the scheme, the method comprises the following steps: the battery pack charging circuit comprises a first end of a battery pack, one end of a resistor R201, the other end of the resistor R201 is connected with one end of a diode D202, a source electrode of an MOS tube Q202, one end of a resistor R206 and one end of a resistor R203, the other end of the resistor R203 is connected with an alternating current protection input end of a single chip microcomputer and one end of a resistor R202, the other end of the resistor R202 is connected with the other end of the resistor R206, the other end of the diode D202 and a grid electrode of the MOS tube Q202, a drain electrode of the MOS tube Q202 is connected with a second end of a wiring bar J202, the first end of the wiring bar J202 is connected with one end; the other end of the fuse F201 is connected with the input end of the battery pack protection data detection circuit;
the other end of the fuse F202 is connected with the cathode of a diode D402, the anode of the diode D402 is connected with the other end of a resistor R412, one end of the resistor R412 is connected with the cathode of a diode D401 and the voltage of 340V, the anode of the diode D401 is connected with one end of a resistor R401 and the first end of a line bank J401, the other end of the resistor R401 is connected with one end of a resistor R402, the other end of the resistor R402 is connected with the quick charging current detection end of the single chip microcomputer and one end of a resistor R403, the other end of the resistor R403 is connected with the power ground, the second end of the line bank J401 is connected with one end of a resistor R26, the other end of the resistor R26 is connected with the cathode of a diode D5, the anode of a diode D5 is connected with the power ground; the second end of the junction bank J401 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with the anode of a diode D6 and the cathode of a diode D3, the cathode of the diode D6 is connected with 12V voltage, and the anode of a diode D3 is connected with the ground.
In the scheme, the method comprises the following steps: the battery pack protection data detection circuit comprises a second input end of a charging optocoupler IC104 connected with the other end of the fuse F201, the second output end of the charging optocoupler IC104 is connected with one end of a resistor R101, the other end of the resistor R101 is connected with one end of a resistor R102, the other end of the resistor R102 is connected with one end of a resistor R105, the other end of the resistor R105 is a battery pack protection data signal output end and is connected with a single-chip microcomputer lithium battery protection data signal input end and one end of a resistor R103, the other end of the resistor R103 is connected with a power ground, a first input end of the charging optocoupler IC104 is connected with one end of a resistor R104, the other end of the;
in the scheme, the method comprises the following steps: the charging protection control circuit comprises a resistor R306, one end of the resistor R306 is connected with a single chip microcomputer charging control output protection control end, the other end of the resistor R306 is connected with one end of a resistor R305 and the base of a triode Q302, the emitter of the triode Q302 is connected with the other end of the resistor R305, the other end of the resistor R305 is connected with a power ground, the collector of the triode Q302 is connected with one end of a charging protection relay K401 winding, the other end of the charging protection relay K401 winding is connected with 5V voltage, the public end of the charging protection relay K401 is connected with the other end of a fuse F202, and the contact normally-closed end of the charging protection.
In the scheme, the method comprises the following steps: the singlechip slow charging current detection input end is connected with one end of a resistor 302 and one end of a resistor R303, the other end of the resistor R303 is connected with a power ground, the other end of the resistor R303 is also connected with one end of a resistor R304 and the anode of a diode D302, the other end of the resistor R304 is connected with one end of a resistor 301 and the second end of a wiring bar J302, the other end of the resistor 301 is connected with the grid of a MOS transistor Q301, the other end of the resistor 302 is connected with the drain of the MOS transistor Q301, the source of the MOS transistor Q301 is connected with the first end of the wiring bar J302, the cathode of the diode D302 is connected with the detection input end of.
In the scheme, the method comprises the following steps: the battery pack is connected in series through lithium battery cores and/or connected in parallel and then connected in series to form a high-voltage battery pack which is directly converted into alternating current for output.
In the scheme, the method comprises the following steps: when 110V output is needed, the high-voltage battery pack is formed by connecting 40-50 lithium battery electric cores in series and/or in parallel and then in series, and the output voltage is 130-190V.
In the scheme, the method comprises the following steps: when 110V output is needed, the high-voltage battery pack is formed by connecting 80-100 lithium battery electric cores in series and/or in parallel and then in series, and the output voltage is 260-380V.
In the scheme, the method comprises the following steps: when 110V output is needed, the high-voltage battery pack is formed by connecting 140 and 170 lithium battery cells in series and/or in parallel and then in series, and the output voltage is 518V-720V.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. can break off charging circuit by oneself through the protection control circuit that charges, avoid producing the condition of overcharging, improve the power consumption security, improve the service life of power.
2. And calculating the maximum power of the input power supply according to the change of the charged voltage and current when charging the battery. And realizing multi-mode charging according to the battery state provided by the battery pack. The charging time is shortened.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a circuit diagram of the gate drive power adapter module of the present invention;
FIG. 3 is a circuit diagram of an AC output circuit, an AC detection circuit and an AC protection control circuit in accordance with the present invention;
FIG. 4 is a circuit diagram of a charge protection control circuit of the present invention;
FIG. 5 is a circuit diagram of a first H-bridge detection circuit and a second H-bridge detection circuit AC detection circuit of the present invention;
FIG. 6 is a circuit diagram of an overcurrent protection control output circuit of the present invention;
fig. 7 is a circuit diagram of the IGBT driving module of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1-7, an intelligent charging circuit for a portable power supply comprises a single chip microcomputer, wherein a lithium battery protection data signal input end of the single chip microcomputer is connected with a battery pack protection data signal output end, a positive electrode of the battery pack is connected with a charging circuit signal input end of the battery pack, a charging management signal of the single chip microcomputer is connected with a charging protection control circuit signal input end, and a control output end of the charging protection control circuit is connected with a control signal input end of the charging circuit of the battery pack.
The battery pack charging circuit comprises a first end of a battery pack, one end of a resistor R201, the other end of the resistor R201 is connected with one end of a diode D202, a source electrode of an MOS tube Q202, one end of a resistor R206 and one end of a resistor R203, the other end of the resistor R203 is connected with an alternating current protection input end of a single chip microcomputer and one end of a resistor R202, the other end of the resistor R202 is connected with the other end of the resistor R206, the other end of the diode D202 and a grid electrode of the MOS tube Q202, a drain electrode of the MOS tube Q202 is connected with a second end of a wiring bar J202, the first end of the wiring bar J202 is connected with one end; the other end of the fuse F201 is connected with the input end of the battery pack protection data detection circuit;
the other end of the fuse F202 is connected with the cathode of a diode D402, the anode of the diode D402 is connected with the other end of a resistor R412, one end of the resistor R412 is connected with the cathode of a diode D401 and the voltage of 340V, the anode of the diode D401 is connected with one end of a resistor R401 and the first end of a line bank J401, the other end of the resistor R401 is connected with one end of a resistor R402, the other end of the resistor R402 is connected with the quick charging current detection end of the single chip microcomputer and one end of a resistor R403, the other end of the resistor R403 is connected with the power ground, the second end of the line bank J401 is connected with one end of a resistor R26, the other end of the resistor R26 is connected with the cathode of a diode D5, the anode of a diode D5 is connected with the power ground; the second end of the junction bank J401 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with the anode of a diode D6 and the cathode of a diode D3, the cathode of the diode D6 is connected with 12V voltage, and the anode of a diode D3 is connected with the ground.
The battery pack protection data detection circuit comprises a second input end of a charging optocoupler IC104 connected with the other end of the fuse F201, the second output end of the charging optocoupler IC104 is connected with one end of a resistor R101, the other end of the resistor R101 is connected with one end of a resistor R102, the other end of the resistor R102 is connected with one end of a resistor R105, the other end of the resistor R105 is a battery pack protection data signal output end and is connected with a single-chip microcomputer lithium battery protection data signal input end and one end of a resistor R103, the other end of the resistor R103 is connected with a power ground, a first input end of the charging optocoupler IC104 is connected with one end of a resistor R104, the other end of the;
the charging protection control circuit comprises a resistor R306, one end of the resistor R306 is connected with a single chip microcomputer charging control output protection control end, the other end of the resistor R306 is connected with one end of a resistor R305 and the base of a triode Q302, the emitter of the triode Q302 is connected with the other end of the resistor R305, the other end of the resistor R305 is connected with a power ground, the collector of the triode Q302 is connected with one end of a charging protection relay K401 winding, the other end of the charging protection relay K401 winding is connected with 5V voltage, the public end of the charging protection relay K401 is connected with the other end of a fuse F202, and the contact normally-closed end of the charging protection.
The singlechip slow charging current detection input end is connected with one end of a resistor 302 and one end of a resistor R303, the other end of the resistor R303 is connected with a power ground, the other end of the resistor R303 is also connected with one end of a resistor R304 and the anode of a diode D302, the other end of the resistor R304 is connected with one end of a resistor 301 and the second end of a wiring bar J302, the other end of the resistor 301 is connected with the grid of a MOS transistor Q301, the other end of the resistor 302 is connected with the drain of the MOS transistor Q301, the source of the MOS transistor Q301 is connected with the first end of the wiring bar J302, the cathode of the diode D302 is connected with the detection input end of.
According to the alternating current output voltage requirements (such as 110V, 220V and 380V) of the portable power supply, the battery pack is connected in series or in parallel and then in series through a plurality of lithium battery cells, and finally the high-voltage battery pack is formed. For 110V output, the high-voltage battery pack is formed by connecting 40-50 lithium battery cells in series (or connecting the lithium battery cells in parallel and then connecting the lithium battery cells in series), and the output voltage is 130-190V. For 220V output, the high-voltage battery pack is formed by connecting 80-100 lithium battery electric cores in series (or connecting the lithium battery electric cores in parallel and then connecting the lithium battery electric cores in series), and the output voltage is 260-380V. For 380V output, the high-voltage battery pack is formed by connecting 140-170 lithium battery cells in series (or connecting the lithium battery cells in parallel and then connecting the lithium battery cells in series), and the output voltage is 518V-720V.
The bus voltage and current detection input end of the single chip microcomputer system is also connected with a data output end of a first current and voltage detection module, a first detection end of the first current and voltage detection module is connected with the cathode of the battery pack, a second detection end of the first current and voltage detection module is connected with the anode of the battery pack, a sine wave voltage frequency control output end of the single chip microcomputer is connected with a frequency control input end of a sine wave generator, a sine wave frequency output end of the sine wave generator is connected with a sine wave frequency input end of an IGBT driving module, a waveform output end of the IGBT driving module is connected with an H-bridge waveform input end, an H-bridge signal output end is connected with a signal input end of; the alternating current control output end of the single chip microcomputer is connected with the alternating current control input end of the alternating current output starting circuit, the control output end of the alternating current output starting circuit is connected with the voltage input end of the H-bridge power supply, the overcurrent protection control output end of the single chip microcomputer is connected with the overcurrent protection input end of the overcurrent protection module, and the overcurrent protection signal output end of the overcurrent protection module is connected with the overcurrent protection input end of the sine wave generator; the battery pack anode is also connected with an alternating current output starting circuit signal input end and a switching power supply signal input end, the alternating current output starting circuit signal output end is connected with an H-bridge power supply voltage input end, the switching power supply signal output end is connected with a switching module circuit signal input end, and the switching module circuit signal output end is connected with a direct current output module signal input end. The gate driving power supply adapter module is used for supplying power to the IGBT driving module.
The IGBT driving module comprises an IGBT driving chip IC603, an IGBT driving chip IC604, an IGBT driving chip IC605 and an IGBT driving chip IC 606.
The first waveform output end of the sine wave SPWM waveform generator is connected with one end of a resistor R611, the other end of the resistor R611 is connected with the positive input end of an IGBT driving chip IC603 and the positive electrode of a diode D601, the negative electrode of the diode D601 is connected with the waveform protection control detection input end of an overcurrent protection module, the power voltage end of the IGBT driving chip IC603 is connected with the power voltage supply end of a gate driving power adaptation module and one end of a capacitor C606, the negative voltage end of the IGBT driving chip IC603 is connected with the negative voltage supply end of the gate driving power adaptation module and the other end of the capacitor C606, and the power voltage end of the IGBT driving chip IC603 is connected with the first.
The second waveform output end of the sine wave SPWM waveform generator is connected with one end of a resistor R612, the other end of the resistor R6121 is connected with the positive input end of an IGBT driving chip IC604 and the positive electrode of a diode D602, the negative electrode of the diode D602 is connected with the waveform protection control detection input end of an overcurrent protection module, the power voltage end of the IGBT driving chip IC604 is connected with the power voltage supply end of a gate driving power adaptation module and one end of a capacitor C607, the negative voltage end of the IGBT driving chip IC604 is connected with the negative voltage supply end of the gate driving power adaptation module and the other end of the capacitor C607, and the power voltage end of the IGBT driving chip IC604 is connected with the second.
The third waveform output end of the sine wave SPWM waveform generator is connected with one end of a resistor R613, the other end of the resistor R613 is connected with the positive input end of an IGBT driving chip IC605 and the positive electrode of a diode D603, the negative electrode of the diode D603 is connected with the waveform protection control detection input end of an overcurrent protection module, the power voltage end of the IGBT driving chip IC605 is connected with the power voltage supply end of a gate driving power adaptation module and one end of a capacitor C608, the negative voltage end of the IGBT driving chip IC605 is connected with the negative voltage supply end of the gate driving power adaptation module and the other end of the capacitor C608, and the power voltage end of the IGBT driving chip IC605 is connected with the third waveform input.
The sine wave SPWM waveform generator fourth waveform output end is connected with one end of a resistor R614, the other end of the resistor R614 is connected with the positive input end of an IGBT driving chip IC606 and the positive electrode of a diode D604, the negative electrode of the diode D604 is connected with the waveform protection control detection input end of an overcurrent protection module, the power voltage end of the IGBT driving chip IC606 is connected with the power voltage supply end of a gate driving power adaptation module and one end of a capacitor C609, the negative voltage end of the IGBT driving chip IC606 is connected with the negative voltage supply end of the gate driving power adaptation module and the other end of the capacitor C609, and the power voltage end of the IGBT driving chip IC606 is connected with the fourth waveform input end of.
The gate driving power supply adaptation module comprises a direct-current power supply IC607, the positive input end of the direct-current power supply IC607 is connected with one end of a resistor R659, the other end of the resistor R659 is connected with a 5V power supply, the negative input end of the direct-current power supply IC607 is connected with one end of a capacitor C636, one end of a capacitor C637, one end of a capacitor C638 and one end of a resistor R649, the other end of the resistor R649 is connected with a power ground, the other end of the capacitor C636, the other end of the capacitor C637 and the other end of the capacitor C638 are connected with a 5V power supply, the positive output end of the direct-current power supply IC607 is connected with one end of a resistor R651, one end of a capacitor C623 and one end of a capacitor C625, the negative output. The other end of the capacitor C623, the other end of the capacitor C625, the other end of the capacitor C624 and the other end of the capacitor C626 are all connected with the other end of the resistor R651; positive voltage is provided for the IGBT driving chip through the positive output end of the direct-current power supply IC607, and negative voltage is provided for the IGBT driving chip through the negative output end of the direct-current power supply IC 607.
Preferably, the gate driving power supply adaptation module further includes a dc power supply IC608, a positive input terminal of the dc power supply IC608 is connected to one end of a resistor R654, the other end of the resistor R654 is connected to the 5V power supply, a negative input terminal of the dc power supply IC608 is connected to one end of a resistor R649, a positive output terminal of the dc power supply IC608 is connected to one end of a resistor R652, one end of a capacitor C627 and one end of a capacitor C630, a negative output terminal of the dc power supply IC608 is connected to a positive electrode of a diode D613, one end of a capacitor C628 and one end of a capacitor C631, and a negative electrode; the other end of the capacitor C627, the other end of the capacitor C630, the other end of the capacitor C628 and the other end of the capacitor C631 are connected with the other end of the resistor R652.
The direct-current power supply system further comprises a direct-current power supply IC609, the positive electrode input end of the direct-current power supply IC609 is connected with one end of a resistor R655, the other end of the resistor R655 is connected with a 5V power supply, the negative electrode input end of the direct-current power supply IC609 is connected with one end of a resistor R649, the positive electrode output end of the direct-current power supply IC609 is connected with one end of a resistor R653, one end of a capacitor C632 and one end of a capacitor C634, the negative electrode output end of the direct-current power supply IC609 is connected with the positive electrode of a diode D613. The other end of the capacitor C632, the other end of the capacitor C634, the other end of the capacitor C633 and the other end of the capacitor C635 are all connected with the other end of the resistor R653.
The general H-bridge is usually realized by using a charge pump, but the charge pump circuit has low power supply, cannot drive a high-power tube, cannot generate negative voltage, and cannot drive an IGBT driving chip, so that the IGBT driving chip can be supplied with power by using a dc power supply IC 607.
Specifically, the dc power supply IC608 supplies power to the IGBT driver IC603, a power supply voltage terminal of the IGBT driver IC603 is connected to the positive output terminal of the dc power supply IC608, and a negative voltage terminal of the IGBT driver IC603 is connected to the negative output terminal of the dc power supply IC 608.
The direct current power supply IC607 supplies power to the IGBT driving chip IC605, the power voltage end of the IGBT driving chip IC605 is connected with the positive electrode output end of the direct current power supply IC607, and the negative electrode voltage end of the IGBT driving chip IC605 is connected with the negative electrode output end of the direct current power supply IC 607.
The direct-current power supply IC609 supplies power for the IGBT driving chip IC604 and the IGBT driving chip IC606, the power supply voltage end of the IGBT driving chip IC604 and the power supply voltage end of the IGBT driving chip IC606 are connected with the positive output end of the direct-current power supply IC609, and the negative voltage end of the IGBT driving chip IC604 and the negative voltage end of the IGBT driving chip IC606 are connected with the negative output end of the direct-current power supply IC 609.
Three power supply modules which are respectively a direct-current power supply IC607, a direct-current power supply IC608 and a direct-current power supply IC609 are arranged, so that the four IGBT driving chips can be dispersedly supplied with power, the power supply of other IGBT driving chips cannot be influenced when a fault occurs, and the normal operation of the system is guaranteed.
The H bridge comprises a resistor R619, one end of the resistor R619 is a first waveform input end of the H bridge, the other end of the resistor R619 is connected with a grid electrode of an MOS tube Q608, one end of the resistor R620 and a grid electrode of an MOS tube Q8-1, the other end of the resistor R620 is connected with a source electrode of the MOS tube Q608, the source electrode of the MOS tube Q608 and the source electrode of the MOS tube Q8-1 are both connected with one end of a capacitor C619, one end of the capacitor C620 and a second input end of the alternating current output circuit, and a drain electrode of the MOS tube Q608 and a drain electrode of the MOS tube Q8-1; the drain of the MOS transistor Q608 is the input end of the H-bridge power supply voltage.
Still include resistance R621, resistance R621 one end is H bridge second waveform input end, MOS pipe Q609 grid is connected to the resistance R621 other end, resistance R622 one end and MOS pipe Q9-1 grid, MOS pipe Q609 source is connected to the resistance R622 other end, MOS pipe Q609 source and MOS pipe Q9-1 source all connect the other end of electric capacity C610 and the other end of electric capacity C611, MOS pipe Q609 drain electrode and MOS pipe Q9-1 drain electrode all connect electric capacity C619 one end, electric capacity C620 one end and exchange output circuit second input.
The high-voltage alternating current output circuit further comprises a resistor R615, one end of the resistor R615 is an H-bridge third waveform input end, the other end of the resistor R615 is connected with a grid electrode of an MOS tube Q606, one end of the resistor R616 is connected with a grid electrode of an MOS tube Q6-1, the other end of the resistor R616 is connected with a source electrode of the MOS tube Q606, drains of the MOS tube Q606 and the MOS tube Q6-1 are both connected with a drain electrode of an MOS tube Q608, the source electrode of the MOS tube Q606 and the source electrode of the MOS tube Q6-1 are both connected with one end of an inductor L601, the other end of the inductor L601 is connected.
The filter circuit further comprises a resistor R617, one end of the resistor R617 is an H-bridge third waveform input end, the other end of the resistor R617 is connected with a grid electrode of an MOS transistor Q607, one end of the resistor R618 and a grid electrode of an MOS transistor Q7-1, the other end of the resistor R618 is connected with a source electrode of the MOS transistor Q607, the source electrode of the MOS transistor Q607 and a source electrode of an MOS transistor Q7-1 are connected with the other end of the capacitor C610 and the other end of the capacitor C621, the other end of the capacitor C610 and the other end of the capacitor C621 are connected with a power ground, and a drain electrode of the MOS transistor Q607 and a.
The alternating current output circuit comprises a conjugate inductor L602, one end of a first winding of the conjugate inductor L602 is a first input end of the alternating current output circuit, one end of a second winding of the conjugate inductor L602 is a second input end of the alternating current output circuit, the other end of the second winding of the conjugate inductor L602 is connected with one end of a capacitor C621, one end of a wiring row J602, one end of a slide rheostat R668 and one end of a resistor R667, the other end of the capacitor C621 is connected with one end of a capacitor C622, and the other end of the capacitor C622 is connected with the other end of the; the other end of the first winding of the conjugated inductor L602 is connected with the other end of the wiring bar J602, the other end of the sliding rheostat R668 and one end of a resistor R656, the other end of the resistor R656 is connected with the anode of a diode D621, the cathode of the diode D621 is connected with the anode of an alternating current output indicator LED602, and the cathode of the alternating current output indicator LED602 is connected with the other end of the second winding of the conjugated inductor L602.
The overcurrent protection module comprises an alternating current detection circuit, an alternating current protection control circuit, a first H bridge detection circuit, a second H bridge detection circuit and an overcurrent protection control output circuit.
The alternating current detection circuit comprises a resistor R643, one end of the resistor R643 is an alternating current detection end and is connected with one end of a first winding of a conjugate inductor L602, the other end of the resistor R643 is connected with one end of a resistor R644, the other end of the resistor R644 is connected with one end of a resistor R645, one end of a resistor R646, one end of a capacitor C615 and the anode of a diode D605, the other end of the capacitor C615 is connected with the other end of the resistor R646, the other end of the resistor R646 is connected with a power ground, the cathode of the diode D605 is connected with one end of a resistor R639, one end of a resistor R641, one end of a capacitor C614 and an alternating current output detection input end of a sine wave generator, the other end of the resistor R639 is connected with a 5V power supply, the other end. The voltage and the current in the alternating current output circuit are detected by the alternating current detection circuit, and the circuit elements are prevented from being burnt due to overload caused by overcurrent or overvoltage.
The alternating-current protection control circuit comprises a diode D611, the anode of the diode D611 is connected with the over-current protection control output end of the single chip microcomputer, the cathode of the diode D611 is connected with one end of a resistor R647 and the cathode of a diode D610, the anode of the diode D610 is connected with the alternating-current protection output end of the over-current protection module, and the other end of the resistor R647 is connected with the base of a triode Q610 and one end of a resistor R648; the other end of the resistor R648 and the emitter of the triode Q610 are both connected with the power ground, the collector of the triode Q610 is connected with one end of the capacitor C617 and one end of the winding of the alternating current protective relay K601, and the other end of the winding of the alternating current protective relay K601 is connected with the 5V power supply; the other end of the capacitor C617 is connected to the power ground.
The common end of the contact of the alternating-current protection relay K601 is connected with the other end of the first winding of the conjugate inductor L602, and the normally open end of the contact of the alternating-current protection relay K601 is connected with the other end of the resistor R667; the normally closed end of the contact of the alternating current protective relay K601 is connected with the other end of the wiring bar J602, the other end of the slide rheostat R668 and one end of the resistor R656. The external consumer is connected via a terminal bank J602. The alternating current protection relay K601 is controlled by the alternating current protection control circuit to disconnect the wiring bank J602, so that the alternating current power supply output is stopped.
Wherein, the first H bridge detection circuit comprises a resistor R625, one end of the resistor R625 is connected with the second waveform input end of the H bridge and one end of a resistor R626, the other end of the resistor R625 is connected with the anode of a diode D617, the anode of the diode D616 and one end of a capacitor C646, the other end of the capacitor C646 is connected with the power ground, the cathode of the diode D616 is connected with the anode of a diode D615, the cathode of the diode D615 is connected with the first working end of the gate driving power adaptation module, the cathode of a diode D617 is connected with the non-inverting input end of the operational amplifier IC610A and one end of a resistor R630, the other end of the resistor R630 is connected with the power ground, the other end of the resistor R626 is connected with one end of a resistor R627, the gate of a MOS transistor Q611 and the gate of the MOS transistor Q617, the other end of the resistor R627, the source of the MOS transistor Q611 and the source of the MOS transistor Q617 are all connected with the power ground, the drain of the MOS transistor Q, the output end of the operational amplifier IC610A is connected with the anode of a diode D606, and the cathode of the diode D606 is the overcurrent signal output end of the second H-bridge detection circuit. The current-voltage condition at the input of the second waveform of the H-bridge is detected by a first H-bridge detection circuit.
The second H-bridge detection circuit comprises a resistor R632, one end of the resistor R632 is connected with a fourth waveform input end of the H-bridge and one end of a resistor R633, the other end of the resistor R632 is connected with the anode of a diode D620, the anode of a diode D619 and one end of a capacitor C648, the other end of the capacitor C648 is connected with a power ground, the cathode of the diode D619 is connected with the anode of a diode D618, the cathode of the diode D618 is connected with the second working end of the gate driving power adaptation module, the cathode of the diode D620 is connected with the non-inverting input end of the operational amplifier IC610B and one end of a resistor R637, the other end of the resistor R637 is connected with the power ground, the other end of the resistor R633 is connected with one end of a resistor R634, the grid of a MOS tube Q612 and the grid of the MOS tube Q619, the other end of the resistor R634, the source of the MOS tube Q612 and the source of the MOS tube Q619 are all connected with the power ground, the drain of, The drain of the MOS tube Q612 and one end of the resistor R638, the other end of the resistor R638 is connected with 12V voltage, and the cathode of the diode D609 is the overcurrent signal output end of the second H-bridge detection circuit and is connected with the first input end of the overcurrent optical coupler IC 611. The current-voltage condition at the fourth waveform input of the H-bridge is detected by a second H-bridge detection circuit.
The overcurrent protection control output circuit comprises an optocoupler IC611, an overcurrent signal output end of the first H-bridge detection circuit and an overcurrent signal output end of the second H-bridge detection circuit are both connected with a first input end of the overcurrent optocoupler IC611, and a first output end of the overcurrent optocoupler IC611 is connected with a power ground; the second input end of the overcurrent optical coupler IC611 is connected with 5V voltage, the second output end of the overcurrent optical coupler IC611 is connected with the cathode of a diode D608, one end of a resistor R660, the grid of a MOS tube Q614, the grid of a MOS tube Q613 and one end of a thyristor Q615, the other end of the resistor R660, the source of the MOS tube Q614 and the source of the MOS tube Q613 are connected with a power ground, the other end of the thyristor Q615 is connected with 5V voltage, the anode of the diode D608 is connected with the overcurrent protection control output end of the single chip microcomputer, the drain of the MOS tube Q614 is connected with one end of a resistor R661 and the overcurrent protection signal input end of the sine wave generator, the drain of the MOS tube Q613 is the waveform protection control detection input end of the overcurrent protection module, the drain of the MOS tube Q613 is connected with one end of a resistor R657 and one end of a resistor R658, the other end of the.
When any one of the AC output circuit, the second waveform input end of the H bridge and the fourth waveform input end of the H bridge generates overcurrent or overvoltage, the overcurrent protection module simultaneously sends an overcurrent protection signal to the AC protection control circuit and the sine wave generator, and the AC protection relay K601 disconnects the wiring bar J602, so that the AC power supply output is stopped.
The alternating current output starting circuit comprises a resistor R23, one end of a resistor R23 is connected with an alternating current starting end of the single chip microcomputer, the other end of a resistor R23 is connected with one end of a resistor R22 and the grid electrode of a MOS transistor Q6, the other end of the resistor R22 and the source electrode of the MOS transistor Q6 are connected with a power ground, the drain electrode of the MOS transistor Q6 is connected with one end of a winding of an alternating current starting relay K602 and one end of a capacitor C12, and the other end of the winding of the alternating current starting; the other end of the capacitor C12 is connected to the power ground.
The common end of an alternating current starting relay K602 is connected with a 340V power supply, the normally open end of a contact point of the alternating current starting relay K602 is connected with an H bridge power supply voltage input end, one end of a resistor R604, one end of a resistor R662, one end of a capacitor C641 and one end of a capacitor C642, the other end of the capacitor C641 and the other end of the capacitor C642 are connected with a power supply ground, the other end of the resistor R604 is connected with the 340V power supply, the other end of the resistor R662 is connected with one end of a resistor R663, the other end of the resistor R663 is connected with one end of a resistor R664 and one.
The ultrasonic insect expelling module, the Bluetooth sound box module, the emergency lighting module and the electronic equipment charging module are added according to the use requirements, and the starting input ends of the ultrasonic insect expelling module, the Bluetooth sound box module, the emergency lighting module and the electronic equipment charging module are all connected with the circuit starting output end of the switch module.
The invention also provides a control method capable of outputting alternating current and direct current, which comprises the intelligent charging circuit for the portable power supply in the scheme, and further comprises the following steps:
s1: charging or discharging according to the requirement, if the charging is needed, closing a charging switch, and executing S2; if the alternating current power supply output is needed, closing the alternating current power supply switch, and executing S3; if the direct current power supply output is needed, closing the direct current power supply switch, and executing S4;
s2: the charging switch is closed, the charging circuit is switched on, the battery pack is charged through the charging circuit, and meanwhile, the single chip microcomputer detects the current voltage state of the battery pack through the first current voltage detection module; if the charging voltage or current is too large, the single chip microcomputer sends a charging stopping signal to the charging protection control circuit, and the charging protection control circuit forcibly disconnects the charging circuit through a charging protection relay K401 to stop charging the battery pack;
s3: the alternating current power supply switch is closed, the alternating current starting relay K602 of the alternating current output starting circuit is communicated with the voltage input end of the H bridge power supply, meanwhile, a sine wave generating instruction is sent to the sine wave generator through the single chip microcomputer, the sine wave generator sends out sine waves, the sine waves are output to the H bridge through the IGBT driving module, and alternating current is output from the wiring bank J602 through the inductive filter and the conjugate inductor L602;
meanwhile, current detection is carried out on the alternating current output circuit through an overcurrent detection module, when overcurrent is detected, the alternating current power supply output is cut off through a relay K601, and meanwhile, a sine wave generator of the single chip case sends a sine wave signal for stopping outputting;
s4: and closing the direct current power supply switch, and outputting direct current through the direct current output module.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides an intelligent charging circuit for portable power source which characterized in that: the single-chip microcomputer lithium battery protection data signal input end is connected with a battery pack protection data signal output end, the positive electrode of the battery pack is connected with a battery pack charging circuit signal input end, a single-chip microcomputer charging management signal is connected with a charging protection control circuit signal input end, and a charging protection control circuit control output end is connected with a battery pack charging circuit control signal input end.
2. The intelligent charging circuit for a portable power supply of claim 1, wherein: the battery pack charging circuit comprises a first end of a battery pack, one end of a resistor R201, the other end of the resistor R201 is connected with one end of a diode D202, a source electrode of an MOS tube Q202, one end of a resistor R206 and one end of a resistor R203, the other end of the resistor R203 is connected with an alternating current protection input end of a single chip microcomputer and one end of a resistor R202, the other end of the resistor R202 is connected with the other end of the resistor R206, the other end of the diode D202 and a grid electrode of the MOS tube Q202, a drain electrode of the MOS tube Q202 is connected with a second end of a wiring bar J202, the first end of the wiring bar J202 is connected with one end; the other end of the fuse F201 is connected with the input end of the battery pack protection data detection circuit;
the other end of the fuse F202 is connected with the cathode of a diode D402, the anode of the diode D402 is connected with the other end of a resistor R412, one end of the resistor R412 is connected with the cathode of a diode D401 and the voltage of 340V, the anode of the diode D401 is connected with one end of a resistor R401 and the first end of a line bank J401, the other end of the resistor R401 is connected with one end of a resistor R402, the other end of the resistor R402 is connected with the quick charging current detection end of the single chip microcomputer and one end of a resistor R403, the other end of the resistor R403 is connected with the power ground, the second end of the line bank J401 is connected with one end of a resistor R26, the other end of the resistor R26 is connected with the cathode of a diode D5, the anode of a diode D5 is connected with the power ground; the second end of the junction bank J401 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with the anode of a diode D6 and the cathode of a diode D3, the cathode of the diode D6 is connected with 12V voltage, and the anode of a diode D3 is connected with the ground.
3. The intelligent charging circuit for a portable power supply of claim 2, wherein: battery pack protection data detection circuitry includes the opto-coupler IC104 second input that charges who is connected with the fuse F201 other end, opto-coupler IC104 second output connecting resistance R101 one end charges, resistance R101 other end connecting resistance R102 one end, resistance R102 other end connecting resistance R105 one end, the resistance R105 other end is battery pack protection data signal output, connect singlechip lithium battery protection data signal input and resistance R103 one end, resistance R103 other end connection power ground, the opto-coupler IC104 first input connecting resistance R104 one end charges, the 5V voltage is connected to the resistance R104 other end, the opto-coupler IC104 first output that charges connects power ground.
4. The intelligent charging circuit for a portable power supply of claim 3, wherein: the charging protection control circuit comprises a resistor R306, one end of the resistor R306 is connected with a single chip microcomputer charging control output protection control end, the other end of the resistor R306 is connected with one end of a resistor R305 and the base of a triode Q302, the emitter of the triode Q302 is connected with the other end of the resistor R305, the other end of the resistor R305 is connected with a power ground, the collector of the triode Q302 is connected with one end of a charging protection relay K401 winding, the other end of the charging protection relay K401 winding is connected with 5V voltage, the public end of the charging protection relay K401 is connected with the other end of a fuse F202, and the contact normally-closed end of the charging protection.
5. The intelligent charging circuit for a portable power supply of claim 2, wherein: the singlechip slow charging current detection input end is connected with one end of a resistor 302 and one end of a resistor R303, the other end of the resistor R303 is connected with a power ground, the other end of the resistor R303 is also connected with one end of a resistor R304 and the anode of a diode D302, the other end of the resistor R304 is connected with one end of a resistor 301 and the second end of a wiring bar J302, the other end of the resistor 301 is connected with the grid of a MOS transistor Q301, the other end of the resistor 302 is connected with the drain of the MOS transistor Q301, the source of the MOS transistor Q301 is connected with the first end of the wiring bar J302, the cathode of the diode D302 is connected with the detection input end of.
6. The intelligent charging circuit for a portable power supply of claim 2, wherein: the battery pack is connected in series through lithium battery cores and/or connected in parallel and then connected in series to form a high-voltage battery pack which is directly converted into alternating current for output.
7. The intelligent charging circuit for a portable power supply of claim 6, wherein: when 110V output is needed, the high-voltage battery pack is formed by connecting 40-50 lithium battery electric cores in series and/or in parallel and then in series, and the output voltage is 130-190V.
8. The intelligent charging circuit for a portable power supply of claim 6, wherein: when 110V output is needed, the high-voltage battery pack is formed by connecting 80-100 lithium battery electric cores in series and/or in parallel and then in series, and the output voltage is 260-380V.
9. The intelligent charging circuit for a portable power supply of claim 6, wherein: when 110V output is needed, the high-voltage battery pack is formed by connecting 140 and 170 lithium battery cells in series and/or in parallel and then in series, and the output voltage is 518V-720V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065089.1A CN112234672B (en) | 2020-09-30 | 2020-09-30 | Intelligent charging circuit for portable power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065089.1A CN112234672B (en) | 2020-09-30 | 2020-09-30 | Intelligent charging circuit for portable power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112234672A true CN112234672A (en) | 2021-01-15 |
| CN112234672B CN112234672B (en) | 2022-05-31 |
Family
ID=74121017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011065089.1A Active CN112234672B (en) | 2020-09-30 | 2020-09-30 | Intelligent charging circuit for portable power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112234672B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202014108U (en) * | 2011-02-21 | 2011-10-19 | 上海博湃电子科技有限公司 | Alternating current direct current dual use power supply supplied by solar energy |
| US20150085413A1 (en) * | 2013-09-25 | 2015-03-26 | Wuxi Vimicro Corporation | Battery protection circuit and system |
| CN206313488U (en) * | 2016-12-26 | 2017-07-07 | 苏州绿恺动力电子科技有限公司 | A kind of lithium battery safety management system |
| CN210380320U (en) * | 2019-09-23 | 2020-04-21 | 重庆工业赋能创新中心有限公司 | Lead-acid battery charging and discharging management system |
-
2020
- 2020-09-30 CN CN202011065089.1A patent/CN112234672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202014108U (en) * | 2011-02-21 | 2011-10-19 | 上海博湃电子科技有限公司 | Alternating current direct current dual use power supply supplied by solar energy |
| US20150085413A1 (en) * | 2013-09-25 | 2015-03-26 | Wuxi Vimicro Corporation | Battery protection circuit and system |
| CN206313488U (en) * | 2016-12-26 | 2017-07-07 | 苏州绿恺动力电子科技有限公司 | A kind of lithium battery safety management system |
| CN210380320U (en) * | 2019-09-23 | 2020-04-21 | 重庆工业赋能创新中心有限公司 | Lead-acid battery charging and discharging management system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112234672B (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103427430B (en) | A kind of energy management method of mixed energy storage system in microgrid | |
| CN104065157B (en) | Uninterruptible power supply with improved power supply reliability | |
| CN104065154B (en) | Frequency changer emergency power supply system | |
| CN201185355Y (en) | High voltage line induction electricity-taking apparatus | |
| CN207481695U (en) | A kind of electric vehicle and its driving and charging system control circuit | |
| CN102005772B (en) | Network combination inversion system and control method thereof | |
| CN108134375A (en) | The protective device of permanent magnet synchronous motor control circuit | |
| CN108306320A (en) | A kind of energy accumulation current converter and energy storage converter system | |
| CN103872747B (en) | Uninterrupted 12V direct-current power system | |
| CN105656051A (en) | Transient-energy dissipation device | |
| CN102769336B (en) | Single-phase inverter for emergency power supply | |
| CN112234856B (en) | Portable power supply capable of intelligently switching alternating current and direct current and control method thereof | |
| CN103346570A (en) | Solar photovoltaic power generation dynamic voltage compensator with energy storage function | |
| CN202550614U (en) | Off-line discharge device of storage battery | |
| CN112234672B (en) | Intelligent charging circuit for portable power supply | |
| CN201956686U (en) | Active power filtering device | |
| CN116404679A (en) | Micro-grid compensation device and micro-grid compensation method | |
| CN202749900U (en) | Singe-phase inverter for emergency power supply | |
| CN207124475U (en) | Energy-storage system | |
| CN112242794B (en) | Intelligent portable power supply capable of realizing multifunctional control | |
| CN201663434U (en) | Electric protection device for DC circuit of inverter | |
| CN210273591U (en) | Mixed type direct current power supply device for transformer substation | |
| CN204481544U (en) | A kind of wireless charging device for transmission line on-line monitoring equipment | |
| CN204258300U (en) | Supplying power allocation safeguards system | |
| CN210092957U (en) | Direct-current power supply device of transformer substation |
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 |