CN115208029B - Intelligent distribution circuit for blind plugging of double PD ports - Google Patents
Intelligent distribution circuit for blind plugging of double PD ports Download PDFInfo
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- CN115208029B CN115208029B CN202210965560.5A CN202210965560A CN115208029B CN 115208029 B CN115208029 B CN 115208029B CN 202210965560 A CN202210965560 A CN 202210965560A CN 115208029 B CN115208029 B CN 115208029B
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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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
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Abstract
The invention discloses a double-PD-port blind-plug intelligent distribution circuit which comprises an AC-DC circuit module, a DC-DC circuit module and an MCU circuit module, wherein the AC-DC circuit module is electrically connected to the DC-DC circuit module, and the DC-DC circuit module is electrically connected to the MCU circuit module. The set maximum power output can be realized, meanwhile, blind insertion of consumers is supported, and the output power can be intelligently distributed; the PCBA manufacturing cost is reduced, the volume is smaller, and the PCBA is suitable for being applied to the fields of power supply schemes such as travel charger, multi-port charger, multifunctional sockets and the like.
Description
Technical Field
The invention relates to the technical field of PD charging, in particular to a double PD port blind-plug intelligent distribution circuit.
Background
With the development of the quick charging technology, most mobile phones have realized the application of the quick charging technology, but different companies have different quick charging protocols, such as PD2OW of apples, 120W of millet, 65W of Huacheng and other different charging protocols, and in actual life, different chargers are required to be equipped due to different protocols, so that inconvenience is brought to the traveling of people, and meanwhile, certain pressure is brought to the environment protection. Currently, the 65W dual-PD port charger on the market is basically set according to a fixed power level, and the consumer cannot perform blind-plug charging, that is, in practical application, only the power of one protocol can be correspondingly output or when the two power ports are used at the same time, the coordination and distribution of the output power cannot be well performed.
At present, the charger multi-port output circuit mainly comprises the following three types:
first kind: and a single DC is used for realizing two paths of output of higher than 5V fast charging, namely one path of DC chip is provided with two paths of USB simultaneously. In the circuit, if one USB is higher than 5V fast charging output, the other USB is turned off, so that other charging equipment is protected, two paths of the charging equipment cannot be output at the same time, and the use experience is poor;
second kind: two paths of USB (universal serial bus) fast charge output higher than 5V are realized by two independent DCs, namely one path of output is formed by one direct current chip and one output port, the other path of output is formed by the other direct current chip and the other output port, the circuit can realize the fast charge output of the two output ports higher than 5V at the same time, but the circuit has high cost and larger product volume;
third kind: the single-channel DC is used for controlling the two channels to be output to the USB by the singlechip, but when the two output ports are simultaneously inserted into the charging equipment, the two output ports are all reduced to 5V output, the quick charging function is lost at the moment, and the charging time is prolonged.
Disclosure of Invention
The invention aims to provide a double-PD-port blind-plug intelligent distribution circuit for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a blind intelligent distribution circuit that inserts of two PD mouthfuls, includes AC-DC circuit module, DC-DC circuit module and MCU circuit module, AC-DC circuit module electric connection is in on the DC-DC circuit module, DC-DC circuit module electric connection is in on the MCU circuit module.
Preferably, the AC-DC circuit module includes an AC input module, an EMC circuit module, a filter circuit module, a transformer circuit module, a synchronous rectification circuit module, a PWM circuit module and a feedback loop module, wherein an input end of the AC input module is used for inputting alternating current, an output end of the AC input module is electrically connected to the EMC circuit module, the EMC circuit module is electrically connected to the filter circuit module, the filter circuit module is electrically connected to the transformer circuit module, the transformer circuit module is respectively electrically connected to the synchronous rectification circuit module and the PWM circuit module, the feedback loop module is fixed to the PWM circuit module, and the DC-DC circuit module is electrically connected to the synchronous rectification circuit module.
Preferably, the DC-DC circuit module includes a BUCK1 circuit module, a BUCK2 circuit module, a type ec1 circuit module and a type ec2 circuit module, the BUCK1 circuit module and the BUCK2 circuit module are electrically connected to the synchronous rectification circuit module, the type ec1 circuit module is electrically connected to the BUCK1 circuit module, the type ec2 circuit module is electrically connected to the BUCK2 circuit module, and the type ec1 circuit module and the type ec2 circuit module are electrically connected to the MCU circuit module.
Preferably, the input end of the AC input module is provided with a fuse F1, the output end of the fuse F1 is connected with an inductor L2, the inductor L2 is connected with an EMC circuit module, the EMC circuit module comprises a capacitor C4 and a resistor R58-R61 which are connected in parallel, the capacitor C4 is connected with the inductor L2 in a coupling way, the resistor R58 is connected with a resistor R60 in series, the resistor R59 is connected with the resistor R61 in a series way, the output ends of the resistor R59 and the resistor R61 are respectively connected with a filter circuit module, the filter circuit module comprises an inductor L3, a rectifier diode D2, a rectifier diode D6, a resistor R4, a resistor R8, a rectifier bridge BD1, a capacitor C8-C11 and a capacitor C3 which are connected in parallel, the input end of the inductor L3 is connected with the output ends of the resistor R59 and the resistor R61 respectively, the output ends of the rectifier diode D2 and the rectifier diode D6 are respectively connected with the resistor R4 and the resistor R8, the output end of the inductor L3 is connected with a rectifier bridge BD1, the output end of the rectifier bridge BD1 is connected with a capacitor C8, the capacitor C8 is connected with a capacitor C10 in parallel, an inductor L1 is arranged between the capacitor C8 and the capacitor C10, the capacitors C9-C11 are connected with the capacitor C3 in parallel, one end of the capacitor C3 is grounded, the transformer circuit module comprises a resistor R5, a resistor R10, a resistor R3, a resistor R11, a capacitor C2 and a transformer T1 which are connected in parallel, the synchronous rectifier circuit module comprises a rectifier diode D1, a resistor R1, a capacitor C6 and a capacitor C7 which are connected in parallel, one end of the capacitor C7 is grounded, one end of a transistor Q1 is connected between the resistor R1 and the capacitor C1, the other end of the transistor Q1 is connected with a pin 5 of the integrated circuit module U1, a pin 2 of the integrated circuit module U1 is grounded, the pin 1 of the integrated circuit module U1 is connected with the rectifying diode D1, the pin 3 of the integrated circuit module U1 is connected with one end of the resistor R7, the other end of the resistor R7 is grounded, the pin 4 of the integrated circuit module U1 is connected with one end of the capacitor C14, the other end of the capacitor C14 is grounded, the pin 6 of the integrated circuit module U1 is connected with one end of the resistor R6, the other end of the resistor R6 is connected between the transformer T1 and the resistor R1, the PWM circuit module comprises the transformer T1, a resistor R31, a resistor R22, a resistor R16, a rectifying diode D4 which are connected in series, a resistor R15, a capacitor C13 and a capacitor C12 which are connected in parallel with the rectifying diode D4, and further comprises a chip U2 and a gallium nitride MOS tube Q2, and the feedback loop module comprises the integrated circuit module U3, a resistor R18, a resistor R17, a capacitor C15 and a resistor R24, a resistor R26, a capacitor C17, a resistor R23 and a resistor U4 and a resistor R33 which are connected in parallel.
Preferably, the BUCK1 circuit module and the BUCK2 circuit module are two mutually independent circuits, and the BUCK1 circuit module and the BUCK2 circuit module respectively provide step-down voltages for the TYPE C1 circuit module and the TYPE C2 circuit module.
Preferably, the BUCK1 circuit module and the BUCK2 circuit module step down through a U5 chip and a U7 chip, the U5 chip and the U7 chip integrate the Buck circuit and the PD protocol into a whole, and the model of the U5 chip and the U7 chip is SW3516H.
Preferably, the MCU circuit module includes a chip U6, the model of the chip U6 is CS32L010, the pin 0 of the chip U6 is grounded, the pin 4 of the chip U6 is connected with a reset circuit, the pin 6 of the chip U6 is connected with a capacitor C37, the pin 7 and the pin 8 of the chip U6 are connected in parallel and then grounded, the pins 9 and 10 of the chip U6 are connected in parallel and then connected with a rectifier diode D7, the pin 10 of the chip U6 is connected in series with a resistor R50, the pins 12, 13 and 14 of the chip U6 are respectively connected in series with a resistor R48, a resistor R46 and a resistor R45, and the pins 12, 13 and 14 are connected in parallel with the pins 9 and 10 through wires.
Compared with the prior art, the invention has the beneficial effects that: the set maximum power output can be realized, meanwhile, blind insertion of consumers is supported, and the output power can be intelligently distributed; the PCBA manufacturing cost is reduced, the volume is smaller, the charging speed is high, the charging time of a user is effectively saved, and the PCBA is suitable for being applied to the fields of power supply schemes such as travel charging, multi-port charging, multifunctional sockets and the like.
Drawings
FIG. 1 is a diagram of a logical framework of the present invention;
FIG. 2 is a schematic diagram of the circuit structure of the AC-DC circuit module of the present invention;
FIG. 3 is a schematic diagram of a DC-DC circuit module circuit configuration of the present invention;
FIG. 4 is a schematic diagram of the circuit structure of the MCU circuit module according to the present invention;
fig. 5 is a schematic diagram of the output power distribution of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, in a first embodiment of the present invention, a dual PD port blind mate intelligent distribution circuit is provided, which includes an AC-DC circuit module, a DC-DC circuit module and an MCU circuit module, where the AC-DC circuit module is electrically connected to the DC-DC circuit module, and the DC-DC circuit module is electrically connected to the MCU circuit module.
Referring to fig. 1, the AC-DC circuit module includes an AC input module, an EMC circuit module, a filter circuit module, a transformer circuit module, a synchronous rectification circuit module, a PWM circuit module, and a feedback loop module, wherein an input end of the AC input module is used for inputting an alternating current, an output end of the AC input module is electrically connected to the EMC circuit module, the EMC circuit module is electrically connected to the filter circuit module, the filter circuit module is electrically connected to the transformer circuit module, the transformer circuit module is respectively electrically connected to the synchronous rectification circuit module and the PWM circuit module, the feedback loop module is fixed to the PWM circuit module, and the DC-DC circuit module is electrically connected to the synchronous rectification circuit module.
Referring to fig. 1, the DC-DC circuit module includes a BUCK1 circuit module, a BUCK2 circuit module, a type 1 circuit module, and a type 2 circuit module, where the BUCK1 circuit module and the BUCK2 circuit module are electrically connected to each other on the synchronous rectification circuit module, the type 1 circuit module is electrically connected to the BUCK1 circuit module, the type 2 circuit module is electrically connected to the BUCK2 circuit module, and the type 1 circuit module and the type 2 circuit module are electrically connected to each other on the MCU circuit module. The AC input module is connected with a power supply line, and when the PD1 or the PD2 is independently plugged in and charged, the MCU circuit module can provide 65W output to the PD1 or the PD2; when PD1 and PD2 are inserted simultaneously, the MCU circuit module will output each allocation of PD1 and PD2 by 30W at first, and then further allocate according to the actual loading conditions of PD1 and PD2, for example: when the power of the PD1 reaches 27W and the power of the PD2 is smaller than 20W, the MCU circuit module distributes the power of the PD1 to 45W, and the power of the PD2 is distributed to 20W; when the power of the PD2 reaches 27W and the power of the PD1 is smaller than 20W, the MCU circuit module distributes the power of the PD2 to 45W, and the power of the PD1 is distributed to 20W.
Example 2
Referring to fig. 1-5, in a second embodiment of the present invention, based on the previous embodiment, specifically, referring to fig. 2, an input end of an AC input module is provided with a fuse F1, an output end of the fuse F1 is connected with an inductor L2, the inductor L2 is connected with an EMC circuit module, the EMC circuit module includes a capacitor C4 and a resistor R58-R61 connected in parallel, the capacitor C4 is coupled with the inductor L2, the resistor R58 is connected in series with the resistor R60, the resistor R59 is connected in series with the resistor R61, the output ends of the resistor R59 and the resistor R61 are respectively connected with a filter circuit module, the filter circuit module includes an inductor L3, a rectifier diode D2, a rectifier diode D6, a resistor R4, a resistor R8, a rectifier bridge BD1, capacitors C8-C11 connected in parallel, an input end of the inductor L3 is coupled with an output end of the resistor R61, an output end of the inductor L3 is respectively connected with the rectifier diode D2 and the rectifier diode D6, the output ends of the rectifier diode D2 and the rectifier diode D6 are respectively connected with a resistor R4 and a resistor R8, the output end of the inductor L3 is connected with a rectifier bridge BD1, the output end of the rectifier bridge BD1 is connected with a capacitor C8, the capacitor C8 is connected with a capacitor C10 in parallel, an inductor L1 is arranged between the capacitor C8 and the capacitor C1, the capacitors C9-C11 are connected with the capacitor C3 in parallel, one end of the capacitor C3 is grounded, the transformer circuit module comprises a resistor R5, a resistor R10, a resistor R3, a resistor R11, a capacitor C2 and a transformer T1 which are connected in parallel, the synchronous rectifier circuit module comprises the rectifier diode D1, a resistor R1, a capacitor C6 and a capacitor C7 which are connected in parallel, one end of the capacitor C7 is grounded, one end of the transistor Q1 is connected with one end of the capacitor C1, the other end of the transistor Q1 is connected with a pin 5 of the integrated circuit module U1, a pin 2 of the integrated circuit module U1 is grounded, a pin 1 of the integrated circuit module U1 is connected with the rectifying diode D1, the pin 3 of the integrated circuit module U1 is connected with one end of a resistor R7, the other end of the resistor R7 is grounded, the pin 4 of the integrated circuit module U1 is connected with one end of a capacitor C14, the other end of the capacitor C14 is grounded, the pin 6 of the integrated circuit module U1 is connected with one end of a resistor R6, the other end of the resistor R6 is connected between a transformer T1 and the resistor R1, the PWM circuit module comprises a transformer T1, a resistor R31, a resistor R22, a resistor R16, a rectifier diode D4, a resistor R15 connected in parallel with the rectifier diode D4, a capacitor C13 and a capacitor C12, a chip U2 and a gallium nitride MOS tube Q2, the chip U2 (model is SC 3021A) is adopted to drive the gallium nitride MOS tube Q2 (model is INN650D 02), the PCB size of the AC-DC circuit module part is reduced, and meanwhile, the charging efficiency is improved, and the feedback loop module comprises the integrated circuit module U3, a resistor R18, a resistor R17, a capacitor C15, a resistor R24 connected in parallel with the resistor R16, a resistor C17, a resistor R23 and an integrated circuit module U33 connected in parallel with the resistor R4.
Referring to fig. 3, the BUCK1 circuit module and the BUCK2 circuit module are two mutually independent circuits, and the BUCK1 circuit module and the BUCK2 circuit module respectively provide step-down voltages for the TYPEC1 circuit module and the TYPEC2 circuit module.
Referring to fig. 3, the BUCK1 circuit module and the BUCK2 circuit module step down through the U5 chip and the U7 chip, the types of the U5 chip and the U7 chip are SW3516H, the U5 chip and the U7 chip integrate the BUCK circuit and the PD protocol into a whole, which greatly reduces the number of components (saves cost) and reduces the difficulty of PCB board arrangement.
Referring to fig. 4, the MCU circuit module includes a chip U6, the model of the chip U6 is CS32L010, the pin 0 of the chip U6 is grounded, the pin 4 of the chip U6 is connected to the reset circuit, the pin 6 of the chip U6 is connected to the capacitor C37, the pin 7 of the chip U6 is grounded after being connected in parallel with the pin 8, the pins 9 and 10 of the chip U6 are connected in parallel and then connected to the rectifier diode D7, the pin 10 of the chip U6 is connected in series with a resistor R50, the pins 12, 13 and 14 of the chip U6 are connected in series with a resistor R48, a resistor R46 and a resistor R45, and the pins 12, 13 and 14 are connected in parallel with the pins 9 and 10 through wires. The chip U6 of the MCU circuit module solves the problem of intelligently distributing output power during blind matching for consumers.
Example 3
Referring to fig. 1-5, in a third embodiment of the present invention, which is based on the above two embodiments, when in use, the AC input module is connected to the power supply line, and when the PD1 or the PD2 is separately plugged in for charging, the MCU circuit module provides 65W output to the PD1 or the PD2; when PD1 and PD2 are inserted simultaneously, the MCU circuit module will output each allocation of PD1 and PD2 by 30W at first, and then further allocate according to the actual loading conditions of PD1 and PD2, for example: when the power of the PD1 reaches 27W and the power of the PD2 is smaller than 20W, the MCU circuit module distributes the power of the PD1 to 45W, and the power of the PD2 is distributed to 20W; when the power of the PD2 reaches 27W and the power of the PD1 is smaller than 20W, the MCU circuit module distributes the power of the PD2 to 45W, and the power of the PD1 is distributed to 20W.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A blind intelligent distribution circuit that inserts of two PD mouthfuls is characterized in that: the AC-DC circuit module is electrically connected to the DC-DC circuit module, and the DC-DC circuit module is electrically connected to the MCU circuit module;
the AC-DC circuit module comprises an AC input module, an EMC circuit module, a filter circuit module, a transformer circuit module, a synchronous rectification circuit module, a PWM circuit module and a feedback loop module, wherein the input end of the AC input module is used for inputting alternating current, the output end of the AC input module is electrically connected with the EMC circuit module, the EMC circuit module is electrically connected with the filter circuit module, the filter circuit module is electrically connected with the transformer circuit module, the transformer circuit module is respectively and electrically connected with the synchronous rectification circuit module and the PWM circuit module, the feedback loop module is fixed on the PWM circuit module, and the DC-DC circuit module is electrically connected with the synchronous rectification circuit module;
the input end of the AC input module is provided with a insurance F1, the output end of the insurance F1 is connected with an inductance L2, the inductance L2 is connected with an EMC circuit module, the EMC circuit module comprises a capacitor C4 and a resistor R58-R61 which are connected in parallel, the capacitor C4 is connected with the inductance L2 in a coupling way, the resistor R58 is connected with a resistor R60 in series, the resistor R59 is connected with the resistor R61 in a series way, the output ends of the resistor R59 and the resistor R61 are respectively connected with a filter circuit module, the filter circuit module comprises an inductance L3, a rectifier diode D2, a rectifier diode D6, a resistor R4, a resistor R8, a rectifier bridge BD1, a capacitor C8-C11 and a capacitor C3 which are connected in parallel, the input end of the inductance L3 is connected with the output ends of the resistor R59 and the resistor R61 in a coupling way, the output ends of the inductor L3 are respectively connected with a rectifier diode D2 and a rectifier diode D6, the output ends of the rectifier diode D2 and the rectifier diode D6 are respectively connected with a resistor R4 and a resistor R8, the output end of the inductor L3 is connected with a rectifier bridge BD1, the output end of the rectifier bridge BD1 is connected with a capacitor C8, the capacitor C8 is connected with a capacitor C10 in parallel, an inductor L1 is arranged between the capacitor C8 and the capacitor C10, the capacitors C9-C11 are connected with the capacitor C3 in parallel, one end of the capacitor C3 is grounded, the transformer circuit module comprises a resistor R5, a resistor R10, a resistor R3, a resistor R11, a capacitor C2 and a transformer T1 which are connected in parallel, the synchronous rectifier circuit module comprises a rectifier diode D1, a resistor R1, a capacitor C6 and a capacitor C7 which are connected in parallel, one end of the capacitor C7 is grounded, one end of a transistor Q1 is connected between the resistor R1 and the capacitor C1, the other end of the transistor Q1 is connected with a pin 5 of the integrated circuit module U1, a pin 2 of the integrated circuit module U1 is grounded, a pin 1 of the integrated circuit module U1 is connected with the rectifier diode D1, the integrated circuit module U1 is characterized in that a pin 3 is connected with one end of a resistor R7, the other end of the resistor R7 is grounded, a pin 4 of the integrated circuit module U1 is connected with one end of a capacitor C14, the other end of the capacitor C14 is grounded, a pin 6 of the integrated circuit module U1 is connected with one end of a resistor R6, the other end of the resistor R6 is connected between a transformer T1 and the resistor R1, the PWM circuit module comprises a transformer T1, a resistor R31, a resistor R22, a resistor R16, a rectifier diode D4, a resistor R15, a capacitor C13 and a capacitor C12 which are connected in parallel with the rectifier diode D4, a chip U2 and a gallium nitride MOS tube Q2, and the feedback loop module comprises the integrated circuit module U3, a resistor R18, a resistor R17, a capacitor C15, a resistor R24, a resistor R26, a capacitor C17 and an integrated circuit module U4 and a resistor R33 which are connected in parallel.
2. The dual PD port blind mate intelligent distribution circuit of claim 1, wherein: the DC-DC circuit module comprises a BUCK1 circuit module, a BUCK2 circuit module, a TYPE EC1 circuit module and a TYPE EC2 circuit module, wherein the BUCK1 circuit module and the BUCK2 circuit module are electrically connected to the synchronous rectification circuit module, the TYPE EC1 circuit module is electrically connected to the BUCK1 circuit module, the TYPE EC2 circuit module is electrically connected to the BUCK2 circuit module, and the TYPE EC1 circuit module and the TYPE EC2 circuit module are electrically connected to the MCU circuit module.
3. The dual PD port blind mate intelligent distribution circuit of claim 2, wherein: the BUCK1 circuit module and the BUCK2 circuit module are two mutually independent circuits, and the BUCK1 circuit module and the BUCK2 circuit module respectively provide step-down voltages for the TYPE C1 circuit module and the TYPE C2 circuit module.
4. The dual PD port blind mate intelligent distribution circuit of claim 2, wherein: the BUCK1 circuit module and the BUCK2 circuit module step down through the U5 chip and the U7 chip, the U5 chip and the U7 chip integrate the Buck circuit and the PD protocol into a whole, and the model of the U5 chip and the U7 chip is SW3516H.
5. The dual PD port blind mate intelligent distribution circuit of claim 2, wherein: the MCU circuit module comprises a chip U6, the model of the chip U6 is CS32L010, a pin 0 of the chip U6 is grounded, a pin 4 of the chip U6 is connected with a reset circuit, a pin 6 of the chip U6 is connected with a capacitor C37, a pin 7 of the chip U6 and a pin 8 are connected in parallel and then grounded, pins 9 and 10 of the chip U6 are connected in parallel and then connected with a rectifier diode D7, a pin 10 of the chip U6 is connected in series with a resistor R50, pins 12, 13 and 14 of the chip U6 are respectively connected in series with a resistor R48, a resistor R46 and a resistor R45, and the pins 12, 13 and 14 are connected in parallel with the pins 9 and 10 through circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965560.5A CN115208029B (en) | 2022-08-12 | 2022-08-12 | Intelligent distribution circuit for blind plugging of double PD ports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965560.5A CN115208029B (en) | 2022-08-12 | 2022-08-12 | Intelligent distribution circuit for blind plugging of double PD ports |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115208029A CN115208029A (en) | 2022-10-18 |
| CN115208029B true CN115208029B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210965560.5A Active CN115208029B (en) | 2022-08-12 | 2022-08-12 | Intelligent distribution circuit for blind plugging of double PD ports |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206442160U (en) * | 2017-02-24 | 2017-08-25 | 深圳派立通科技有限公司 | A kind of many mouthfuls of USB charging circuits |
| CN206878695U (en) * | 2017-03-24 | 2018-01-12 | 东莞市广数电气技术有限公司 | A kind of circuit board for being used to control more mouthfuls of chargers of USB |
| CN110829558A (en) * | 2019-11-08 | 2020-02-21 | 上海电动工具研究所（集团）有限公司 | Universal electric tool charger with intelligent self-adaptive control |
| CN113708469A (en) * | 2021-08-27 | 2021-11-26 | 陈泽亮 | Three-way transformer independent control scheme |
-
2022
- 2022-08-12 CN CN202210965560.5A patent/CN115208029B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206442160U (en) * | 2017-02-24 | 2017-08-25 | 深圳派立通科技有限公司 | A kind of many mouthfuls of USB charging circuits |
| CN206878695U (en) * | 2017-03-24 | 2018-01-12 | 东莞市广数电气技术有限公司 | A kind of circuit board for being used to control more mouthfuls of chargers of USB |
| CN110829558A (en) * | 2019-11-08 | 2020-02-21 | 上海电动工具研究所（集团）有限公司 | Universal electric tool charger with intelligent self-adaptive control |
| CN113708469A (en) * | 2021-08-27 | 2021-11-26 | 陈泽亮 | Three-way transformer independent control scheme |
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| Publication number | Publication date |
|---|---|
| CN115208029A (en) | 2022-10-18 |
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