CN205846817U - A kind of AC DC inverse-excitation type charging circuit and charger - Google Patents
A kind of AC DC inverse-excitation type charging circuit and charger Download PDFInfo
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- CN205846817U CN205846817U CN201620458754.6U CN201620458754U CN205846817U CN 205846817 U CN205846817 U CN 205846817U CN 201620458754 U CN201620458754 U CN 201620458754U CN 205846817 U CN205846817 U CN 205846817U
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Abstract
This utility model is applicable to integrated circuit fields, it is provided that a kind of AC DC inverse-excitation type charging circuit and charger, including: rectification unit；Output voltage control unit, its first input end is connected with the outfan of rectification unit；Voltage conversion unit, its first, second, third input is connected with the outfan of rectification unit, the first outfan of output voltage control unit, the second outfan of output voltage control unit respectively；Feedback unit, its input is connected with the outfan of voltage conversion unit, and its outfan is connected with the feedback end of output voltage control unit；First, second pressure unit, its input is connected with first, second tunnel output of voltage conversion unit respectively.This utility model all uses blood pressure lowering mode to carry out AC DC conversion, and charging voltage is organized in output more, more cost-effective than boosting mode, and efficiency is high, and can export many group charging quickly pressures and common charging voltage simultaneously, meets more user's request, improves Consumer's Experience.
Description
Technical field
This utility model belongs to integrated circuit fields, particularly relates to a kind of AC-DC inverse-excitation type charging circuit and charger.
Background technology
For meeting the requirement that portable set is powered for a long time, the battery capacity that device interior is equipped with is increasing.According to
Traditional charge mode, the time for battery charging is more and more longer.For promoting charging rate, shorten the charging interval, Hen Duogong
Department has all issued fast charge method and related protocol.In this condition, for portable set be equipped with AC/DC charger also
Needs have corresponding quick-charge function.These AC/DC chargers are typically provided with the USB output of one or more standard
Port.Occur in that again the power distributor being equipped with multiple USB delivery outlets in the recent period.
In existing power distributor solution, many employing simplex winding one fixed voltages of output, follow-up employing is multiple
Boosting (BOOST) controller, is aided with quick charge interface protocol chip to realize the output of quick charge.This implementation master
The defect wanted is that scheme cost is high, and overall conversion efficiency is low.This utility model have employed brand-new topological structure, it is possible to achieve
The double optimization of Cost And Performance.
Utility model content
The purpose of this utility model embodiment is to provide a kind of AC-DC inverse-excitation type charging circuit, it is intended to solve existing AC-
DC electricity scheme soon cannot the most commonly be charged and quick charge, and the problem that cost is high.
This utility model embodiment is achieved in that a kind of AC-DC inverse-excitation type charging circuit, and described circuit includes:
Alternating current carries out the rectification unit of rectification, and the input of described rectification unit is connected with alternating current power supply；
The output voltage control unit of voltage changeover control signal, described output voltage control list is generated according to output voltage
The first input end of unit is connected with the outfan of described rectification unit；
Carry out the voltage conversion unit of voltage conversion according to described voltage changeover control signal, described voltage conversion unit has
Having two-way to export, generate the first DC voltage and the second DC voltage respectively, described first DC voltage is second straight higher than described
Stream voltage, the first input end of described voltage conversion unit is connected with the outfan of described rectification unit, and the conversion of described voltage is single
Second input of unit is connected with the first outfan of described output voltage control unit, and the 3rd of described voltage conversion unit is defeated
Enter end to be connected with the second outfan of described output voltage control unit；
Second DC voltage is fed back to the feedback unit of described output voltage control unit, of described feedback unit
Or one or more outfans of multiple input and described voltage conversion unit are connected respectively, described feedback unit defeated
Go out end to be connected with the feedback end of described output voltage control unit；
Described first DC voltage is carried out blood pressure lowering process, and the voltage instruction required according to load end changes and export the
The first pressure unit of charging voltage is filled on one tunnel soon, the of the input of described first pressure unit and described voltage conversion unit
One tunnel output connects；
Second DC voltage is carried out blood pressure lowering process, generates the second tunnel and fill charging voltage and the first common charging voltage soon
Second pressure unit, the described first via is filled charging voltage soon and is filled charging voltage, described second blood pressure lowering list soon higher than described second tunnel
The input of unit is connected with the second tunnel output of described voltage conversion unit.
Further, described voltage conversion unit also includes the 3rd tunnel output, generates the 3rd DC voltage, described 3rd straight
Stream voltage is higher than described second DC voltage and less than described first DC voltage；
Described circuit also includes the 3rd pressure unit, the input of described 3rd pressure unit and described voltage conversion unit
The 3rd tunnel output connect.
Further, described output voltage control unit includes:
Electric capacity C2, resistance R1, resistance R2, resistance R3, the first switching tube Q1 and pulse width modulation module；
The HV pin of described pulse width modulation module is the first input end of described output voltage control unit, and described pulsewidth is adjusted
The signal GATE pin that drives of molding block is connected with the control end of described first switching tube Q1, the input of described first switching tube Q1
End is the first outfan of described output voltage control unit, the outfan of described first switching tube Q1 and described pulsewidth modulation
The CS pin of module connects, and the CS pin of described pulse width modulation module is also by described resistance R1 ground connection, described pulsewidth modulation mould
The FB pin of block is the feedback end of described output voltage control unit, the VS pin of described pulse width modulation module simultaneously with described electricity
The one end holding one end of C2, one end of described resistance R2 and described resistance R3 connects, the other end of described electric capacity C2 and described electricity
The other end of resistance R3 ground connection simultaneously, the other end of described resistance R2 is the second outfan of described output voltage control unit.
Further, described first switching tube Q1 is N-type metal-oxide-semiconductor, and the grid of described N-type metal-oxide-semiconductor is described first to open
Close the control end of pipe Q1, the input that drain electrode is described first switching tube Q1 of described N-type metal-oxide-semiconductor, the source of described N-type metal-oxide-semiconductor
The outfan of the most described first switching tube Q1.
Further, the first via output of described voltage conversion unit includes the first outfan and the second outfan, institute
The the second tunnel output stating voltage conversion unit includes that the 3rd outfan and the 4th outfan, described voltage conversion unit also include many
Winding transformer T1 and rectifier tube D1, rectifier tube D2, electric capacity C3, electric capacity C4；
The former limit of described multiwinding transformer T1 includes first coil NPWith the second coil NA, described multiwinding transformer
Secondary includes tertiary coil NS1With the 4th coil NS2；
Described first coil NPThe first input end that different name end is described voltage conversion unit, described first coil NP's
Same Name of Ends is the second input of described voltage conversion unit, described second coil NASame Name of Ends be described voltage conversion unit
The 3rd input, described second coil NADifferent name end ground connection；
Described tertiary coil NS1Same Name of Ends be connected with the anode of described rectifier tube D1, the negative electrode of described rectifier tube D1 is institute
One end of the first outfan and described electric capacity C3 of stating voltage conversion unit is connected, described tertiary coil NS1Different name end be described
Second outfan of voltage conversion unit is connected with the other end of described electric capacity C3；
Described 4th coil NS2Same Name of Ends be connected with the anode of described rectifier tube D2, the negative electrode of described rectifier tube D2 is institute
One end of the 3rd outfan and described electric capacity C4 of stating voltage conversion unit is connected, described 4th coil NS2Different name end be described
4th outfan of voltage conversion unit is connected with the other end of described electric capacity C4.
Further, described first pressure unit is intelligent blood pressure lowering chip based on QC2.0 or QC3.0.
Further, described second pressure unit is USB switch buck chip, and charged electrical is filled on exportable second tunnel soon
Pressure, and common charging voltage.
Further, described feedback unit is opto-coupled feedback circuit.
The another object of this utility model embodiment is, it is provided that a kind of include above-mentioned AC-DC inverse-excitation type charging circuit
Charger.
This utility model embodiment is owing to all using blood pressure lowering mode to carry out AC-DC conversion, and charging voltage is organized in output more, than
Boosting mode is greatly saved cost, efficiency height, and can export many group charging quickly pressures and common charging voltage simultaneously, can be same
Time meet multi-user's demand, improve Consumer's Experience.
Accompanying drawing explanation
The structure chart of the AC-DC inverse-excitation type charging circuit that Fig. 1 provides for this utility model embodiment；
The exemplary circuit figure of the AC-DC inverse-excitation type charging circuit that Fig. 2 provides for this utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.Additionally, institute in each embodiment of this utility model disclosed below
Just can be mutually combined as long as the technical characteristic related to does not constitutes conflict each other.
This utility model embodiment all uses blood pressure lowering mode to carry out AC-DC conversion, and output organizes charging voltage, than boosting more
Mode is greatly saved cost, improves efficiency, and can export many group charging quickly pressures and common charging voltage simultaneously, can be same
Time meet the demand of multi-user, improve Consumer's Experience.
Fig. 1 shows the structure of the AC-DC inverse-excitation type charging circuit that this utility model embodiment provides, for the ease of saying
Bright, illustrate only the part relevant to this utility model.
This AC-DC inverse-excitation type charging circuit can be applicable in various mains charger, and this circuit includes:
Rectification unit 11, for alternating current is carried out rectification, the input of rectification unit 11 is connected with alternating current power supply；
In an embodiment of the present utility model, rectification unit can use rectifier bridge and energy storage device to realize.
Output voltage control unit 12, for requiring to generate voltage changeover control signal, output voltage according to output voltage
The first input end of control unit 12 is connected with the outfan of rectification unit 11；
In this utility model embodiment, output voltage control unit 12 is according to maintaining the constant requirement of output voltage, raw
The control signal of power conversion unit in pairs, the high-voltage dc voltage that rectification unit exports is converted to requirement by power conversion unit
Low-voltage direct output, with meet to load charging requirement.
Voltage conversion unit 13, for carrying out voltage conversion according to voltage changeover control signal, voltage conversion unit 13 has
There is two-way to export, generate the first DC voltage (such as 20V/2A) and the second DC voltage (such as 5V/3A), the first direct current respectively
Voltage is higher than the second DC voltage, and the first input end of voltage conversion unit 13 is connected with the outfan of rectification unit 11, voltage
Second input of converting unit 13 is connected with the first outfan of output voltage control unit 12, the of voltage conversion unit 13
Three inputs are connected with the second outfan of output voltage control unit 12；
As this utility model one preferred embodiment, voltage conversion unit 13 can also include the 3rd tunnel output, generates the
Three DC voltages, the 3rd DC voltage is higher than the second DC voltage and less than the first DC voltage；
This AC-DC inverse-excitation type charging circuit also includes that the 3rd pressure unit, the input of the 3rd pressure unit turn with voltage
The 3rd tunnel output changing unit 13 connects.
Certainly voltage conversion unit is needed can also to include the 4th and the 5th tunnel output, the electricity of each road output according to user
Pressure height can be arranged according to user's request.
Feedback unit 14, feeds back to output voltage control unit for converting the voltage into the DC voltage of unit 13 output
12, multiple inputs of feedback unit 14 are connected respectively with multiple outfans of voltage conversion unit 13, feedback unit 14
Outfan be connected with the feedback end of output voltage control unit 12；
First pressure unit 15, for the first DC voltage is carried out blood pressure lowering process, and is detected by fast charge protocol
Voltage instruction required by unit detection load, fills charging voltage, the first pressure unit soon according to the voltage instruction output first via
The input of 15 exports with the first via of voltage conversion unit 13 and is connected；
In this utility model embodiment, the first pressure unit, mainly in the fast charge mode of high voltage, such as may be used
To provide the large current charge of 9V, 12V, 20V, and can automatically identify that the output voltage required by load end carries out selectivity
Output, such as load request provide 12V charge power supply, then after the first pressure unit detects the instruction of load, backward load is defeated
Go out the charging voltage of 12V, the most do not limit the size of output voltage and electric current, specifically can arrange according to user's request.
Second pressure unit 16, for the second DC voltage is carried out blood pressure lowering process, generates the second tunnel and fills charging voltage soon
With the first common charging voltage, the first via is filled charging voltage soon and is filled charging voltage, the second pressure unit soon higher than described second tunnel
The input of 16 is connected with the second tunnel output of voltage conversion unit 13.
In this utility model embodiment, the second pressure unit 16 can export multiple charging voltage in parallel,
Both can be the fast mold filling formula of big electric current, it is also possible to be the normal charging mode of small area analysis, and the electricity of the second pressure unit output
Pressure is less than the voltage of the first pressure unit output.
This utility model embodiment is owing to all using blood pressure lowering mode to carry out AC-DC conversion, and charging voltage is organized in output more, than
Boosting mode is greatly saved cost, and efficiency is high, and can export many group charging quickly pressures and common charging voltage simultaneously, permissible
Meet multiple user's requests simultaneously, improve Consumer's Experience.
Fig. 2 shows the exemplary circuit structure of the AC-DC inverse-excitation type charging circuit that this utility model embodiment provides.
Wherein, rectification unit 11 includes rectifier bridge and electric capacity C1, and the AC rectification of input is transformed to high voltage direct current,
Carry out energy storage by electric capacity C1, and be connected with output voltage control unit 12 and voltage transformation module 13；The one of described electric capacity C1
Holding the positive voltage with rectification unit 11 output to be connected, the ground wire that the other end of C1 exports with rectification unit 11 is connected；
Output voltage control unit 12 includes:
Electric capacity C2, resistance R1, resistance R2, resistance R3 and pulse width modulation module PWM IC；
The first input end that HV pin is output voltage control unit 12 of pulse width modulation module PWM IC is with electric capacity C1's
Positive voltage one end connects, and pulse width modulation module PWM IC drives the control end of signal GATE pin and the first switching tube Q1 even
Connect, first outfan that input is output voltage control unit 12 of the first switching tube Q1, the outfan of the first switching tube Q1
Being connected with the CS pin of pulse width modulation module PWM IC, the CS pin of pulse width modulation module PWM IC connects also by described resistance R1
Ground, the feedback end that FB pin is output voltage control unit of pulse width modulation module PWM IC connects with the outfan of feedback unit
Connecing, the FB pin of described pulse width modulation module is the feedback end of described output voltage control unit, pulse width modulation module PWM IC
VS pin be connected with one end of one end, one end of resistance R2 and the resistance R3 of electric capacity C2 simultaneously, the other end of electric capacity C2 and electricity
The other end of resistance R3 ground connection simultaneously, the other end of resistance R2 is that the second outfan of output voltage control unit 12 is changed with voltage
Transformer Winding N in unit 13AOne end be connected.
Voltage conversion unit 13 includes:
Multiwinding transformer T1 and low-pressure side rectification unit 131, this low-pressure side rectification unit 131 includes rectifier tube D1, whole
Flow tube D2, electric capacity C3, electric capacity C4；
The winding number of multiwinding transformer T1 and the electric current number of low-pressure side rectification unit 131 can be adjusted as required
Whole.The embodiment for a two-way output shown in Fig. 2.
The former limit of multiwinding transformer T1 includes first coil NPWith the second coil NA, the secondary bag of multiwinding transformer T1
Include tertiary coil NS1With the 4th coil NS2；
First coil NPThe first input end that different name end is voltage conversion unit 13, first coil NPSame Name of Ends be electricity
Second input of pressure converting unit 13, the second coil NAThe 3rd input that Same Name of Ends is voltage conversion unit 13, second
Coil NADifferent name end ground connection；
Tertiary coil NS1Same Name of Ends be connected with the anode of rectifier tube D1, the negative electrode of rectifier tube D1 is voltage conversion unit 13
The first outfan be connected with one end of electric capacity C3, tertiary coil NS1The second outfan that different name end is voltage conversion unit 13
It is connected with the other end of electric capacity C3；
4th coil NS2Same Name of Ends be connected with the anode of rectifier tube D2, the negative electrode of rectifier tube D2 is voltage conversion unit 13
The 3rd outfan be connected with one end of electric capacity C4, the 4th coil NS2The 4th outfan that different name end is voltage conversion unit 13
It is connected with the other end of electric capacity C4.
The ac voltage rectifier sent by multiwinding transformer T1 is for conversion into low pressure by rectifier tube D1 and electric capacity C3
The first DC voltage.One end of rectifier tube D1 and a winding N of multiwinding transformer T1S1One end be connected, the other end with
One end of electric capacity C3 is connected, and constitutes the positive voltage terminal of the first DC voltage, winding NS1The other end of the other end and electric capacity C3
It is connected, and constitutes the ground terminal of the first DC voltage.Rectifier tube D2 and electric capacity C4 will be sent by multiwinding transformer T1
Ac voltage rectifier is for conversion into the first DC voltage of low pressure.One of one end of rectifier tube D2 and multiwinding transformer T1 around
Group NS2One end be connected, the other end is connected with one end of electric capacity C4, constitutes the positive voltage terminal of the second DC voltage.Winding NS2
The other end be connected with the other end of electric capacity C4, and constitute the ground terminal of the second DC voltage.
Second tunnel output of voltage conversion unit 13 samples pulse width modulation module PWM IC by opto-coupled feedback circuit 14
FB pin, output voltage control unit 12 produces according to this feedback signal and controls the first switching tube Q1 in voltage conversion unit 13
Control signal, by regulating the ON time of the first switching tube, by the former flange N of multiwinding transformer T1PWith secondary circle
NS2Turn ratio relation, the second road output voltage of voltage conversion unit can be controlled；Meanwhile, the former flange N of multiwinding transformer T1P
With secondary circle NS1The first via output voltage of turn ratio relation adjustable voltage converting unit 13.
Preferably, the first switching tube Q1 is N-type metal-oxide-semiconductor, and the grid of N-type metal-oxide-semiconductor is the control end of the first switching tube Q1, N
The drain electrode of type metal-oxide-semiconductor is the input of the first switching tube Q1, and the source electrode of N-type metal-oxide-semiconductor is the outfan of the first switching tube Q1.
Preferably, the first pressure unit 15 is intelligent blood pressure lowering chip (BUCK IC) based on QC2.0 or QC3.0, can basis
Instruction required by load, it is provided that required output voltage.
Preferably, the second pressure unit 16 is USB switch current limliting chip (SWITCH), can be configured to according to the requirement of load
Quick charge output port or common charging port.
As this utility model one preferred embodiment, feedback unit 14 is opto-coupled feedback circuit.
The another object of this utility model embodiment is, it is provided that a kind of include above-mentioned AC-DC inverse-excitation type charging circuit
Charger.
This utility model embodiment is owing to all using blood pressure lowering mode to carry out AC-DC conversion, and charging voltage is organized in output more, than
Boosting mode is greatly saved cost, improves efficiency high, and can export many group charging quickly pressures and common charged electrical simultaneously
Pressure, can meet multiple user's requests, improve Consumer's Experience.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Any amendment, equivalent and the improvement etc. made within novel spirit and principle, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (9)
1. an AC-DC inverse-excitation type charging circuit, it is characterised in that described circuit includes:
Alternating current carries out the rectification unit of rectification, and the input of described rectification unit is connected with alternating current power supply；
The output voltage control unit of voltage changeover control signal is generated according to output voltage, described output voltage control unit
First input end is connected with the outfan of described rectification unit；
Carry out the voltage conversion unit of voltage conversion according to described voltage changeover control signal, described voltage conversion unit has two
Road exports, and generates the first DC voltage and the second DC voltage respectively, and described first DC voltage is higher than described second unidirectional current
Pressure, the first input end of described voltage conversion unit is connected with the outfan of described rectification unit, described voltage conversion unit
Second input is connected with the first outfan of described output voltage control unit, the 3rd input of described voltage conversion unit
It is connected with the second outfan of described output voltage control unit；
Second DC voltage is fed back to the feedback unit of described output voltage control unit, or many of described feedback unit
Individual input is connected respectively with one or more outfans of described voltage conversion unit, the outfan of described feedback unit
It is connected with the feedback end of described output voltage control unit；
Described first DC voltage is carried out blood pressure lowering process, and the voltage instruction required according to load end is changed and exports the first via
Fill the first pressure unit of charging voltage, the input of described first pressure unit and the first via of described voltage conversion unit soon
Output connects；
Second DC voltage is carried out blood pressure lowering process, generates the second tunnel and fill charging voltage and the second of the first common charging voltage soon
Pressure unit, the described first via fills charging voltage soon and fills charging voltage soon higher than described second tunnel, described second pressure unit
Input is connected with the second tunnel output of described voltage conversion unit.
2. circuit as claimed in claim 1, it is characterised in that described voltage conversion unit also includes the 3rd tunnel output, generates
3rd DC voltage, described 3rd DC voltage is higher than described second DC voltage and less than described first DC voltage；
Described circuit also includes the 3rd pressure unit, the of the input of described 3rd pressure unit and described voltage conversion unit
Three tunnel outputs connect.
3. circuit as claimed in claim 1, it is characterised in that described output voltage control unit includes:
Electric capacity C2, resistance R1, resistance R2, resistance R3, the first switching tube Q1 and pulse width modulation module；
The HV pin of described pulse width modulation module is the first input end of described output voltage control unit, described pulsewidth modulation mould
The signal GATE pin that drives of block is connected with the control end of described first switching tube Q1, and the input of described first switching tube Q1 is
First outfan of described output voltage control unit, the outfan of described first switching tube Q1 and described pulse width modulation module
CS pin connects, and the CS pin of described pulse width modulation module is also by described resistance R1 ground connection, the FB of described pulse width modulation module
Pin is the feedback end of described output voltage control unit, and the VS pin of described pulse width modulation module is simultaneously with described electric capacity C2's
One end of one end, one end of described resistance R2 and described resistance R3 connects, the other end of described electric capacity C2 and described resistance R3's
Other end ground connection simultaneously, the other end of described resistance R2 is the second outfan of described output voltage control unit.
4. circuit as claimed in claim 3, it is characterised in that described first switching tube Q1 is N-type metal-oxide-semiconductor, described N-type MOS
The grid of pipe is the control end of described first switching tube Q1, the input that drain electrode is described first switching tube Q1 of described N-type metal-oxide-semiconductor
End, the source electrode of described N-type metal-oxide-semiconductor is the outfan of described first switching tube Q1.
5. circuit as claimed in claim 3, it is characterised in that the first via output of described voltage conversion unit includes that first is defeated
Going out end and the second outfan, the second tunnel output of described voltage conversion unit includes the 3rd outfan and the 4th outfan, described
Voltage conversion unit also includes multiwinding transformer T1 and rectifier tube D1, rectifier tube D2, electric capacity C3, electric capacity C4；
The former limit of described multiwinding transformer T1 includes first coil NPWith the second coil NA, the secondary of described multiwinding transformer
Including tertiary coil NS1With the 4th coil NS2；
Described first coil NPThe first input end that different name end is described voltage conversion unit, described first coil NPOf the same name
End is the second input of described voltage conversion unit, described second coil NASame Name of Ends is described voltage conversion unit
Three inputs, described second coil NADifferent name end ground connection；
Described tertiary coil NS1Same Name of Ends be connected with the anode of described rectifier tube D1, the negative electrode of described rectifier tube D1 is described electricity
First outfan of pressure converting unit is connected with one end of described electric capacity C3, described tertiary coil NS1Different name end be described voltage
Second outfan of converting unit is connected with the other end of described electric capacity C3；
Described 4th coil NS2Same Name of Ends be connected with the anode of described rectifier tube D2, the negative electrode of described rectifier tube D2 is described electricity
3rd outfan of pressure converting unit is connected with one end of described electric capacity C4, described 4th coil NS2Different name end be described voltage
4th outfan of converting unit is connected with the other end of described electric capacity C4.
6. circuit as claimed in claim 1, it is characterised in that described first pressure unit is intelligence based on QC2.0 or QC3.0
Can blood pressure lowering chip.
7. circuit as claimed in claim 1, it is characterised in that described second pressure unit is USB switch buck chip, can be defeated
Go out the second tunnel and fill charging voltage, and common charging voltage soon.
8. circuit as claimed in claim 1, it is characterised in that described feedback unit is opto-coupled feedback circuit.
9. a charger, it is characterised in that described charger includes the AC-DC flyback as described in any one of claim 1 to 8
Formula charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620458754.6U CN205846817U (en) | 2016-05-18 | 2016-05-18 | A kind of AC DC inverse-excitation type charging circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620458754.6U CN205846817U (en) | 2016-05-18 | 2016-05-18 | A kind of AC DC inverse-excitation type charging circuit and charger |
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| Publication Number | Publication Date |
|---|---|
| CN205846817U true CN205846817U (en) | 2016-12-28 |
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| CN201620458754.6U Active CN205846817U (en) | 2016-05-18 | 2016-05-18 | A kind of AC DC inverse-excitation type charging circuit and charger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871040A (en) * | 2016-05-18 | 2016-08-17 | 深圳宝砾微电子有限公司 | AC (alternating current)-DC (direct current) flyback charging circuit and charger |
| CN109728733A (en) * | 2019-03-26 | 2019-05-07 | 西安霍威电源有限公司 | A kind of power module |
| CN112994187A (en) * | 2021-04-27 | 2021-06-18 | 南京沁恒微电子股份有限公司 | Protocol chip and fast charging power supply voltage regulation controller containing same |
-
2016
- 2016-05-18 CN CN201620458754.6U patent/CN205846817U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871040A (en) * | 2016-05-18 | 2016-08-17 | 深圳宝砾微电子有限公司 | AC (alternating current)-DC (direct current) flyback charging circuit and charger |
| CN109728733A (en) * | 2019-03-26 | 2019-05-07 | 西安霍威电源有限公司 | A kind of power module |
| CN112994187A (en) * | 2021-04-27 | 2021-06-18 | 南京沁恒微电子股份有限公司 | Protocol chip and fast charging power supply voltage regulation controller containing same |
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