CN112019060A - Vehicle-mounted AC/DC quick-charging power adapter circuit - Google Patents
Vehicle-mounted AC/DC quick-charging power adapter circuit Download PDFInfo
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- CN112019060A CN112019060A CN202010887343.XA CN202010887343A CN112019060A CN 112019060 A CN112019060 A CN 112019060A CN 202010887343 A CN202010887343 A CN 202010887343A CN 112019060 A CN112019060 A CN 112019060A
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- direct current
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- 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
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- 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
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- 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
-
- 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to the technical field of power supplies, in particular to a vehicle-mounted alternating current-direct current quick-charging power adapter circuit which comprises a direct current input port, an alternating current input circuit and a quick-charging output circuit, wherein the direct current input port is connected with the alternating current input circuit; the alternating current input circuit comprises an alternating current input port, an alternating current output port, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the quick charging output circuit comprises a direct current conversion module, a voltage reduction and stabilization module and a quick charging protocol module; the input end of the direct current conversion module is respectively connected with the output end of the voltage stabilization output module and the direct current input port; and the output end of the direct current conversion module is connected with the input end of the fast charging protocol module through the voltage reduction and stabilization module. The invention can realize a power supply with multiple purposes by arranging the direct current input port, the alternating current input circuit and the quick charging output circuit, and can be used for alternating current plug-in power supply and vehicle-mounted power supply.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a vehicle-mounted alternating current and direct current quick-charging power adapter circuit.
Background
The power adapter is a power supply conversion device of small portable electronic equipment and electronic appliances, and is mainly used for converting alternating current input into direct current output; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type. The intelligent anti-theft device is widely matched with security cameras, set top boxes, routers, light bars, massage instruments and other equipment.
However, the existing power adapter has a single input mode, only has a single input mode, and when a user needs to input through commercial power or through a vehicle-mounted cigarette lighter, two different power adapters need to be adopted, which brings inconvenience to the user.
Disclosure of Invention
The invention aims to provide a vehicle-mounted alternating current and direct current quick charging power adapter circuit aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme: a vehicle-mounted AC/DC quick charging power adapter circuit comprises a DC input port, an AC input circuit and a quick charging output circuit; the output ends of the direct current input port and the alternating current input circuit are respectively connected with the input end of the quick charging output circuit; an isolation element is arranged between the output end of the alternating current input circuit and the direct current input port;
the alternating current input circuit comprises an alternating current input port, an alternating current output port, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the alternating current input port is connected with the input end of the pulse width modulation module through the rectification filtering module; the output end of the pulse width modulation module is connected with the input end of the voltage stabilization output module;
the quick charging output circuit comprises a direct current conversion module, a voltage reduction and stabilization module and a quick charging protocol module; the input end of the direct current conversion module is respectively connected with the output end of the voltage stabilization output module and the direct current input port; and the output end of the direct current conversion module is connected with the input end of the fast charging protocol module through the voltage reduction and stabilization module.
The invention is further arranged that the rectifying and filtering module comprises a common-mode inductor LF1, a common-mode inductor LF2, a rectifier bridge BD1, a rectifier bridge BD2 and a capacitor C1;
the alternating current input port is connected with the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 respectively after passing through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are grounded through a capacitor C1 respectively; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected with the input end of the pulse width modulation module.
The invention further provides a fuse F1, a piezoresistor VZ1 and a thermistor NTC1 between the alternating current input port and the rectifying and filtering module.
The invention is further provided that the pulse width modulation module comprises a transformer T1, an MOS tube Q1 and a main control chip U1; one end of the primary side of the transformer T1 is connected with the output end of the rectification filter module; the other end of the primary side of the transformer T1 is connected with the drain electrode of an MOS tube Q1; the source electrode of the MOS transistor Q1 is grounded through a resistor R26; the gate of the MOS transistor Q1 is connected with the control end of the main control chip U1.
The invention is further provided that the voltage-stabilizing output module comprises a MOS tube Q2, a synchronous rectifier chip U2 and a capacitor C11; one end of the secondary side of the transformer T1 is connected with an alternating current output port; the other end of the secondary side of the transformer T1 is grounded through a capacitor C11; the other end of the secondary side of the transformer T1 is connected with the drain electrode of an MOS tube Q2; the source electrode of the MOS tube Q2 is grounded; the grid electrode of the MOS tube Q2 is connected with the eighth port of the synchronous rectification chip U2; the fourth port of the synchronous rectification chip U2 is connected with the drain of the MOS transistor Q2.
The invention is further provided that the isolation element is a diode D6; the anode of the diode D6 is connected with one end of the secondary side of the transformer T1; and the cathode of the diode D6 is connected with an alternating current output port.
The invention is further arranged that the voltage stabilization output module further comprises a feedback voltage stabilization chip U2A; one end of the secondary side of the transformer T1 is connected with a feedback voltage stabilizing chip U2A.
The invention is further provided that the direct current conversion module comprises a direct current conversion chip U4; the voltage reduction and stabilization module comprises an MOS tube Q9 and an inductor L4; the quick charge protocol module comprises a quick charge protocol chip U5;
a first port of the direct current conversion chip U4 is respectively connected with an output end of the alternating current input circuit and a direct current input port; a ninth port of the direct current conversion chip U4 is connected with the drain electrode of the MOS tube Q9; the source electrode of the MOS tube Q9 is grounded; the gate of the MOS transistor Q9 is connected with the eighth port of the direct current conversion chip U4; and a ninth port of the direct current conversion chip U4 is connected with a fourth port of the fast charge protocol chip U5 through an inductor L4.
The invention is further provided that the number of the quick charging output circuits is five; five quick-charging output circuits are arranged in parallel.
The invention has the beneficial effects that: the invention can realize a power supply with multiple purposes by arranging the direct current input port, the alternating current input circuit and the quick charging output circuit, and can be used for alternating current plug-in power supply and vehicle-mounted power supply.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is a circuit diagram of an AC input circuit of the present invention;
FIG. 2 is a circuit diagram of the fast charge output circuit of the present invention;
FIG. 3 is a circuit diagram of the cooperation of five fast charge output circuits of the present invention;
1. a direct current input port; 2. an AC input port; 3. and an AC output port.
Detailed Description
The invention is further described with reference to the following examples.
As can be seen from fig. 1 to fig. 3, the vehicle-mounted ac/dc fast charging power adapter circuit according to this embodiment includes a dc input port 1, an ac input circuit, and a fast charging output circuit; the output ends of the direct current input port 1 and the alternating current input circuit are respectively connected with the input end of the quick charging output circuit; an isolation element is arranged between the output end of the alternating current input circuit and the direct current input port 1;
the alternating current input circuit comprises an alternating current input port 2, an alternating current output port 3, a rectification filter module, a pulse width modulation module and a voltage stabilization output module; the alternating current input port 2 is connected with the input end of the pulse width modulation module through a rectification filtering module; the output end of the pulse width modulation module is connected with the input end of the voltage stabilization output module;
the quick charging output circuit comprises a direct current conversion module, a voltage reduction and stabilization module and a quick charging protocol module; the input end of the direct current conversion module is respectively connected with the output end of the voltage stabilization output module and the direct current input port 1; and the output end of the direct current conversion module is connected with the input end of the fast charging protocol module through the voltage reduction and stabilization module.
Specifically, in the vehicle-mounted ac/dc fast charging power adapter circuit according to this embodiment, when the adapter is connected to ac mains supply, the ac mains supply outputs 24V dc voltage to the fast charging output circuit after passing through the rectifier and filter module, the pulse width modulation module, and the voltage stabilization output module in sequence, and the fast charging output circuit converts the 24V dc voltage through the dc conversion module, the voltage reduction and stabilization module, and the fast charging protocol module and then fast charges the device to be charged; when the adapter is directly connected to the vehicle-mounted cigarette lighter, the vehicle-mounted cigarette lighter directly inputs direct-current voltage to the quick charging output circuit through the direct-current input port 1, the quick charging output circuit quickly charges the device to be charged after passing through the direct-current conversion module, the voltage reduction and stabilization module and the quick charging protocol module, and in addition, the current of a vehicle can be prevented from flowing back to the alternating-current input circuit due to the action of the isolation element; the embodiment can realize multiple purposes of a power supply by arranging the direct current input port 1, the alternating current input circuit and the quick charging output circuit, and can be used for alternating current power plug and vehicle-mounted use.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, the rectification filter module includes a common mode inductor LF1, a common mode inductor LF2, a rectifier bridge BD1, a rectifier bridge BD2, and a capacitor C1;
the alternating current input port 2 is connected with the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 respectively after passing through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are grounded through a capacitor C1 respectively; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected with the input end of the pulse width modulation module.
Specifically, the common-mode inductor LF1, the common-mode inductor LF2, the rectifier bridge BD1, the rectifier bridge BD2 and the capacitor C1 constitute an EMI filter circuit; common mode inductance LF1 and common mode inductance LF2 of the EMI filter circuit filter out interference from a mains supply line, and then are filtered into smooth direct current voltage through a rectifier bridge BD1, a rectifier bridge BD2 and a capacitor C1 to provide energy for the pulse width modulation module.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, a fuse F1, a voltage dependent resistor VZ1, and a thermistor NTC1 are disposed between the ac input port 2 and the rectifying and filtering module. Specifically, the fuse tube F1 provides power-off protection for circuit anomalies; the piezoresistor VZ1 can absorb the lightning stroke energy of the L line to the N line; the thermistor NTC1 can be used for reducing input surge current and preventing L-N input mains supply from entering larger peak current to damage subsequent circuit parts at the moment of starting.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, the pulse width modulation module includes a transformer T1, a MOS transistor Q1, and a main control chip U1; one end of the primary side of the transformer T1 is connected with the output end of the rectification filter module; the other end of the primary side of the transformer T1 is connected with the drain electrode of an MOS tube Q1; the source electrode of the MOS transistor Q1 is grounded through a resistor R26; the gate of the MOS transistor Q1 is connected with the control end of the main control chip U1. PWM pulse modulation can be performed by the above arrangement.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, the voltage stabilization output module includes an MOS transistor Q2, a synchronous rectifier chip U2, and a capacitor C11; one end of the secondary side of the transformer T1 is connected with an alternating current output port 3; the other end of the secondary side of the transformer T1 is grounded through a capacitor C11; the other end of the secondary side of the transformer T1 is connected with the drain electrode of an MOS tube Q2; the source electrode of the MOS tube Q2 is grounded; the grid electrode of the MOS tube Q2 is connected with the eighth port of the synchronous rectification chip U2; the fourth port of the synchronous rectification chip U2 is connected with the drain of the MOS transistor Q2. Specifically, the embodiment can realize the function of synchronous rectification through the above arrangement, so that the regulated output module outputs a stable direct-current voltage.
In the vehicle-mounted ac/dc quick-charging power adapter circuit of the present embodiment, the isolation element is a diode D6; the anode of the diode D6 is connected with one end of the secondary side of the transformer T1; the cathode of the diode D6 is connected to the ac output port 3. The arrangement can prevent the current of the vehicle from flowing back to the AC input circuit.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, the voltage stabilization output module further includes a feedback voltage stabilization chip U2A; one end of the secondary side of the transformer T1 is connected with a feedback voltage stabilizing chip U2A.
In the vehicle-mounted ac/dc fast charging power adapter circuit of this embodiment, the dc conversion module includes a dc conversion chip U4; the voltage reduction and stabilization module comprises an MOS tube Q9 and an inductor L4; the quick charge protocol module comprises a quick charge protocol chip U5;
a first port of the direct current conversion chip U4 is respectively connected with an output end of the alternating current input circuit and the direct current input port 1; a ninth port of the direct current conversion chip U4 is connected with the drain electrode of the MOS tube Q9; the source electrode of the MOS tube Q9 is grounded; the gate of the MOS transistor Q9 is connected with the eighth port of the direct current conversion chip U4; and a ninth port of the direct current conversion chip U4 is connected with a fourth port of the fast charge protocol chip U5 through an inductor L4. Specifically, the present embodiment implements the quick charging function by the above-mentioned setting.
In the vehicle-mounted alternating current/direct current quick charging power adapter circuit, the number of the quick charging output circuits is five; five quick-charging output circuits are arranged in parallel.
Specifically, in the present embodiment, five fast charging output circuits, that is, five output ports working independently are provided, so that multiple devices can be fast charged simultaneously.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a quick power adapter circuit that fills of on-vehicle alternating current-direct current which characterized in that: the device comprises a direct current input port (1), an alternating current input circuit and a quick charge output circuit; the output ends of the direct current input port (1) and the alternating current input circuit are respectively connected with the input end of the quick charging output circuit; an isolation element is arranged between the output end of the alternating current input circuit and the direct current input port (1);
the alternating current input circuit comprises an alternating current input port (2), an alternating current output port (3), a rectification filtering module, a pulse width modulation module and a voltage stabilization output module; the alternating current input port (2) is connected with the input end of the pulse width modulation module through the rectification filtering module; the output end of the pulse width modulation module is connected with the input end of the voltage stabilization output module;
the quick charging output circuit comprises a direct current conversion module, a voltage reduction and stabilization module and a quick charging protocol module; the input end of the direct current conversion module is respectively connected with the output end of the voltage stabilization output module and the direct current input port (1); and the output end of the direct current conversion module is connected with the input end of the fast charging protocol module through the voltage reduction and stabilization module.
2. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 1, characterized in that: the rectifying and filtering module comprises a common-mode inductor LF1, a common-mode inductor LF2, a rectifier bridge BD1, a rectifier bridge BD2 and a capacitor C1;
the alternating current input port (2) is connected with the input end of the rectifier bridge BD1 and the input end of the rectifier bridge BD2 respectively after passing through the common mode inductor LF1 and the common mode inductor LF1 in sequence; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are grounded through a capacitor C1 respectively; the output end of the rectifier bridge BD1 and the output end of the rectifier bridge BD2 are respectively connected with the input end of the pulse width modulation module.
3. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 1, characterized in that: a fuse F1, a voltage dependent resistor VZ1 and a thermistor NTC1 are arranged between the alternating current input port (2) and the rectifying and filtering module.
4. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 1, characterized in that: the pulse width modulation module comprises a transformer T1, an MOS tube Q1 and a main control chip U1; one end of the primary side of the transformer T1 is connected with the output end of the rectification filter module; the other end of the primary side of the transformer T1 is connected with the drain electrode of an MOS tube Q1; the source electrode of the MOS transistor Q1 is grounded through a resistor R26; the gate of the MOS transistor Q1 is connected with the control end of the main control chip U1.
5. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 4, characterized in that: the voltage-stabilizing output module comprises an MOS (metal oxide semiconductor) tube Q2, a synchronous rectification chip U2 and a capacitor C11; one end of the secondary side of the transformer T1 is connected with an alternating current output port (3); the other end of the secondary side of the transformer T1 is grounded through a capacitor C11; the other end of the secondary side of the transformer T1 is connected with the drain electrode of an MOS tube Q2; the source electrode of the MOS tube Q2 is grounded; the grid electrode of the MOS tube Q2 is connected with the eighth port of the synchronous rectification chip U2; the fourth port of the synchronous rectification chip U2 is connected with the drain of the MOS transistor Q2.
6. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 5, characterized in that: the isolation element is a diode D6; the anode of the diode D6 is connected with one end of the secondary side of the transformer T1; and the cathode of the diode D6 is connected with the alternating current output port (3).
7. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 5, characterized in that: the voltage stabilization output module also comprises a feedback voltage stabilization chip U2A; one end of the secondary side of the transformer T1 is connected with a feedback voltage stabilizing chip U2A.
8. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 1, characterized in that: the direct current conversion module comprises a direct current conversion chip U4; the voltage reduction and stabilization module comprises an MOS tube Q9 and an inductor L4; the quick charge protocol module comprises a quick charge protocol chip U5;
the first port of the direct current conversion chip U4 is respectively connected with the output end of the alternating current input circuit and the direct current input port (1); a ninth port of the direct current conversion chip U4 is connected with the drain electrode of the MOS tube Q9; the source electrode of the MOS tube Q9 is grounded; the gate of the MOS transistor Q9 is connected with the eighth port of the direct current conversion chip U4; and a ninth port of the direct current conversion chip U4 is connected with a fourth port of the fast charge protocol chip U5 through an inductor L4.
9. The vehicle-mounted AC/DC fast charging power adapter circuit according to claim 1, characterized in that: the number of the quick charging output circuits is five; five quick-charging output circuits are arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010887343.XA CN112019060A (en) | 2020-08-28 | 2020-08-28 | Vehicle-mounted AC/DC quick-charging power adapter circuit |
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| CN202010887343.XA CN112019060A (en) | 2020-08-28 | 2020-08-28 | Vehicle-mounted AC/DC quick-charging power adapter circuit |
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