CN204809913U - Charging device and subscriber equipment - Google Patents
Charging device and subscriber equipment Download PDFInfo
- Publication number
- CN204809913U CN204809913U CN201520429856.0U CN201520429856U CN204809913U CN 204809913 U CN204809913 U CN 204809913U CN 201520429856 U CN201520429856 U CN 201520429856U CN 204809913 U CN204809913 U CN 204809913U
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- Prior art keywords
- electrically connected
- semiconductor
- oxide
- metal
- circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model provides a charging device and subscriber equipment, this charging device includes: with the electric input circuit who is connected of power, with the drive circuit that the input circuit electricity is connected to and be used for the treatment circuit that charges to the heterogeneous BUCK that the load goes on charging, wherein, to charge the treatment circuit parallelly connected each other for arbitrary double -phase BUCK. The utility model discloses an effectual charge time that has shortened of charging device and subscriber equipment has improved the efficiency of charging.
Description
Technical field
The utility model relates to cell art, particularly relates to a kind of charging device and subscriber equipment.
Background technology
Along with cell-phone function gets more and more, its power consumption is also increasing, therefore, needs constantly to promote battery capacity and volume, to meet the need for electricity of mobile phone.At present, traditional BUCK charging circuit can be specially to the charging device of mobile phone.
But, traditional BUCK charging circuit is limited to hot property, size, the conveyance capacity of mobile phone, such as: the small size power inductance conveyance capacity that mobile phone uses at present is maximum is generally 3 ~ 4A, the factor such as output ripple and transient response, thus cause charging current less, and then cause the mobile phone charging interval longer, namely result in the reduction of mobile phone charge efficiency.
Utility model content
The utility model provides a kind of charging device and subscriber equipment, in order to improve the charge efficiency of mobile phone.
The utility model provides a kind of charging device on the one hand, wherein, comprising: the input circuit be connected with power electric, the drive circuit be electrically connected with described input circuit, and the heterogeneous BUCK charging process circuit for charging to load;
Wherein, any two-phase BUCK charging process circuit is parallel with one another.
Further alternatively, in charging device as above, for every phase BUCK charging process circuit, it comprises: the first metal-oxide-semiconductor be electrically connected with described drive circuit respectively and the second metal-oxide-semiconductor, inductance and electric capacity;
Wherein, the source electrode of described first metal-oxide-semiconductor is electrically connected with described load, and the drain electrode of described first metal-oxide-semiconductor is electrically connected with the drain electrode of described second metal-oxide-semiconductor and one end of described inductance respectively, and the grid of described first metal-oxide-semiconductor is electrically connected with described drive circuit;
The source ground of described second metal-oxide-semiconductor, the drain electrode of described second metal-oxide-semiconductor is electrically connected with the drain electrode of described first metal-oxide-semiconductor and one end of described inductance respectively, and the grid of described second metal-oxide-semiconductor is electrically connected with described drive circuit;
The other end of described inductance is electrically connected with one end of described electric capacity; The other end ground connection of described electric capacity.
Further alternatively, in charging device as above, described input circuit is digital to analog converter.
Further alternatively, in charging device as above, it is characterized in that drive circuit comprises: the voltage control loop be electrically connected with described every phase BUCK charging process circuit respectively, and current controlled circuit.
Further alternatively, in charging device as above, for each described voltage control loop, it comprises: be electrically connected error amplifier, the adder be electrically connected with described error amplifier, the comparator that is electrically connected with described adder with the other end of inductance, and the voltage control unit be electrically connected with described comparator;
Wherein, described voltage controller is electrically connected with the grid of described first metal-oxide-semiconductor and the grid of described second metal-oxide-semiconductor respectively.
Another aspect of the present utility model additionally provides a kind of subscriber equipment, wherein, comprises charging device as described above.
Charging device of the present utility model and subscriber equipment, by arranging the drive circuit of heterogeneous BUCK charging process circuit and its electrical connection in charging device, namely the BUCK charging process circuit driving it to be electrically connected by drive circuit carries out confession electric treatment to load, owing to adopting heterogeneous BUCK charging process circuit, compared to existing traditional BUCK charging circuit, reduce the output current of each phase, and can also ensure that total fan-out capability is constant, in the size of existing these devices of subscriber equipment, in the situations such as performance, obtain fan-out capability at double, thus effectively shorten the charging interval, improve the efficiency of charging.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model charging device embodiment one structural representation;
Fig. 2 is BUCK charging process circuit 13 embodiment two circuit diagram in the utility model charging device;
Fig. 3 be adopt heterogeneous BUCK charging process circuit in the present embodiment account for money ratio-output ripple figure;
Fig. 4 is the utility model charging device embodiment three-circuit figure;
Fig. 5 is the principle schematic adopting two-phase BUCK charging process circuit working in the present embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the utility model charging device embodiment one structural representation, as shown in Figure 1, this charging device comprises: the input circuit 11 be connected with this power electric, the drive circuit 12 be electrically connected with this input circuit 11, and the heterogeneous BUCK charging process circuit 13 for charging to load.
Concrete, any two-phase BUCK charging process circuit 13 is parallel with one another.
In the present embodiment, input circuit 11 obtains electric current from power supply, and by electric current input driving circuit 12 respectively, the heterogeneous BUCK charging process circuit that drive circuit 12 drives it to be electrically connected carries out confession electric treatment to load.Wherein, this load can be the subscriber equipmenies such as mobile phone.
In the present embodiment, by arranging the drive circuit of heterogeneous BUCK charging process circuit and its electrical connection in charging device, namely the BUCK charging process circuit driving it to be electrically connected by drive circuit carries out confession electric treatment to load, owing to adopting heterogeneous BUCK charging process circuit, compared to existing traditional BUCK charging circuit, reduce the output current of each phase, and can also ensure that total fan-out capability is constant, in the size of existing these devices of subscriber equipment, in the situations such as performance, obtain fan-out capability at double, thus effectively shorten the charging interval, improve the efficiency of charging.
Fig. 2 is BUCK charging process circuit 13 embodiment two circuit diagram in the utility model charging device, on above-mentioned basis embodiment illustrated in fig. 1, in the present embodiment, for BUCK charging process circuit 13 for two-phase, introduce the technical scheme of the present embodiment in detail, as shown in Figure 2, for every phase BUCK charging process circuit 13, it comprises: the first metal-oxide-semiconductor 131 and the second metal-oxide-semiconductor 132, inductance 133 and the electric capacity 134 be electrically connected with described drive circuit 12 respectively.
Wherein, the source electrode of described first metal-oxide-semiconductor 131 is electrically connected with described load, the drain electrode of described first metal-oxide-semiconductor 131 is electrically connected with the described drain electrode of the second metal-oxide-semiconductor 132 and one end of described inductance 133 respectively, and the grid of described first metal-oxide-semiconductor 131 is electrically connected with described drive circuit 12.
The source ground of described second metal-oxide-semiconductor 132, the drain electrode of described second metal-oxide-semiconductor 132 is electrically connected with the described drain electrode of the first metal-oxide-semiconductor 131 and one end of described inductance 133 respectively, and the grid of described second metal-oxide-semiconductor 132 is electrically connected with described drive circuit 12.
The other end of described inductance 133 is electrically connected with one end of described electric capacity 134; The other end ground connection of described electric capacity 134.
Alternatively, this input circuit is digital to analog converter.
In the present embodiment, when employing two-phase BUCK charging process circuit 13, when to account for wide ratio be 50%, output ripple is zero, namely inductance defeated in ripple current offset and can bring the output capacitor ripple voltage lower than charging modes of the prior art.In addition, because the energy stored in each outputting inductance reduces, therefore load transient performance also improves thereupon.Meanwhile, the ripple voltage that current canceling brings reduces, thus can realize minimum output voltage overshoot and undershoot, and then makes ripple current step-down, and it disturbs also corresponding reduction.
In addition, further, for example, Fig. 3 be adopt heterogeneous BUCK charging process circuit in the present embodiment account for wide ratio-output ripple figure, as shown in Figure 3, abscissa representative accounts for wide ratio, and ordinate represents ripple: wherein, N
pH=1 represents single-phase BUCK charging process circuit, and when to account for wide ratio be 50%, ripple is maximum, is 0.5; N
pH=2 i.e. two-phase BUCK charging process circuit (two BUCK charging process circuit in parallel), when to account for wide ratio be 25%, ripple is maximum, is 0.2, and when to account for wide ratio be 50%, ripple is minimum, is ideally 0.Other N are also illustrated in Fig. 3
pH=3, N
pH=4 and N
pHthe situation of=6, its principle is similar, it can thus be appreciated that, adopt heterogeneous BUCK charging process circuit effectively can reduce output ripple.
Fig. 4 is the utility model charging device embodiment three-circuit figure, on above-mentioned basis embodiment illustrated in fig. 2, as shown in Figure 4, drive circuit 12 comprises: the voltage control loop be electrically connected with described every phase BUCK charging process circuit 1 respectively, and current controlled circuit.
In the present embodiment, for each voltage control loop, it comprises: be electrically connected error amplifier 121, the adder 122 be electrically connected with described error amplifier, the comparator 123 that is electrically connected with described adder with the other end of inductance 133, and the voltage control unit 124 be electrically connected with described comparator 123.
Wherein, described voltage controller 124 is electrically connected with the grid of described first metal-oxide-semiconductor 131 and the grid of described second metal-oxide-semiconductor 132 respectively.
In the present embodiment, voltage control loop and current controlled circuit are used for the value accurately controlling output voltage values and each phase inductance electric current.For voltage control loop, it is identical with voltage control mode principle in prior art, repeats no more herein.For current controlled circuit, it detects the output current value of each phase, that get two-way output current with mean value that is value as with reference to current value, and compared with each phase output current value, to realize the imbalance being regulated each phase current by difference between current, thus reach and stablize each phase output current value.
In addition, in this enforcement, when two-phase BUCK charging process circuit is started working, by error amplifier 121 by output voltage feedback signal compared with reference voltage signal, difference by this error amplifier amplify 121.Current controlled circuit exports the difference of each phase current and average current, difference between current is converted to voltage signal, and combine voltage difference amplifying signal above by comparator 123, compared with sawtooth signal, generate pwm signal, and the metal-oxide-semiconductor conducting controlled by voltage control unit 124 in the BUCK charging process circuit 13 be electrically connected and closedown.
For example, also for two-phase BUCK charging process circuit, Fig. 5 is the principle schematic adopting two-phase BUCK charging process circuit working in the present embodiment, as shown in Figure 5, to adopt single-phase BUCK, accounting for wide ratio is 25%, output current requires to reach 4A, and operating frequency is 1.5MHz is example.(adopt two-phase BUCK charging process circuit) when adopting two-phase BUCK, then equivalent operation frequency need become 3MHz, the alternation of two-phase BUCK charging process circuit, and accounting for wide ratio is still 25%, and every phase current is 2A.It can thus be appreciated that, adopt two-phase BUCK charging process circuit can reduce every phase output current, and can output ripple be reduced.
It should be noted that, in the present embodiment, circuit diagram does not draw input circuit, but the technical scheme that those skilled in the art all can record according to this embodiment knows the annexation of input circuit and drive circuit.
The utility model additionally provides a kind of subscriber equipment, comprises charging device, and this charging device can for the charging device described in above-mentioned Fig. 1, Fig. 2 or Fig. 4, and it is similar that it realizes principle, do not repeating herein.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Device embodiment described above is only schematic, the unit wherein illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed at least two network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a charging device, is characterized in that, comprising: the input circuit be connected with power electric, the drive circuit be electrically connected with described input circuit, and the heterogeneous BUCK charging process circuit for charging to load;
Wherein, any two-phase BUCK charging process circuit is parallel with one another.
2. charging device according to claim 1, is characterized in that, for every phase BUCK charging process circuit, it comprises: the first metal-oxide-semiconductor be electrically connected with described drive circuit respectively and the second metal-oxide-semiconductor, inductance and electric capacity;
Wherein, the source electrode of described first metal-oxide-semiconductor is electrically connected with described load, and the drain electrode of described first metal-oxide-semiconductor is electrically connected with the drain electrode of described second metal-oxide-semiconductor and one end of described inductance respectively, and the grid of described first metal-oxide-semiconductor is electrically connected with described drive circuit;
The source ground of described second metal-oxide-semiconductor, the drain electrode of described second metal-oxide-semiconductor is electrically connected with the drain electrode of described first metal-oxide-semiconductor and one end of described inductance respectively, and the grid of described second metal-oxide-semiconductor is electrically connected with described drive circuit;
The other end of described inductance is electrically connected with one end of described electric capacity; The other end ground connection of described electric capacity.
3. charging device according to claim 1 and 2, is characterized in that, described input circuit is digital to analog converter.
4. charging device according to claim 2, is characterized in that drive circuit comprises: the voltage control loop be electrically connected with described every phase BUCK charging process circuit respectively, and current controlled circuit.
5. charging device according to claim 4, it is characterized in that, for each described voltage control loop, it comprises: be electrically connected error amplifier, the adder be electrically connected with described error amplifier, the comparator that is electrically connected with described adder with the other end of inductance, and the voltage control unit be electrically connected with described comparator;
Wherein, described voltage controller is electrically connected with the grid of described first metal-oxide-semiconductor and the grid of described second metal-oxide-semiconductor respectively.
6. a subscriber equipment, is characterized in that, comprise as arbitrary in the claims 1 to 5 as described in charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429856.0U CN204809913U (en) | 2015-06-19 | 2015-06-19 | Charging device and subscriber equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429856.0U CN204809913U (en) | 2015-06-19 | 2015-06-19 | Charging device and subscriber equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809913U true CN204809913U (en) | 2015-11-25 |
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ID=54594674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520429856.0U Expired - Fee Related CN204809913U (en) | 2015-06-19 | 2015-06-19 | Charging device and subscriber equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204809913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901387A (en) * | 2015-06-19 | 2015-09-09 | 深圳天珑无线科技有限公司 | Charging device and user device |
| CN105743171A (en) * | 2016-03-29 | 2016-07-06 | 深圳市安全快充技术有限公司 | Intelligent rapid charging apparatus |
-
2015
- 2015-06-19 CN CN201520429856.0U patent/CN204809913U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901387A (en) * | 2015-06-19 | 2015-09-09 | 深圳天珑无线科技有限公司 | Charging device and user device |
| CN105743171A (en) * | 2016-03-29 | 2016-07-06 | 深圳市安全快充技术有限公司 | Intelligent rapid charging apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20190619 |