CN106787708A - Power inverter and integrated circuit - Google Patents
Power inverter and integrated circuit Download PDFInfo
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- CN106787708A CN106787708A CN201611112258.6A CN201611112258A CN106787708A CN 106787708 A CN106787708 A CN 106787708A CN 201611112258 A CN201611112258 A CN 201611112258A CN 106787708 A CN106787708 A CN 106787708A
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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
- H02M3/02—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
- H02M3/156—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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Disclose a kind of power inverter and the integrated circuit for building power inverter; by Setting pattern selection circuit; in IC interior multiplexing power switch; in the flrst mode so that it works as the main switch of switched mode converter; under the second mode so that it works as protection switch; thus, it is possible to effectively reduce chip area, manufacturing cost is reduced.
Description
Technical field
The present invention relates to Power Electronic Technique, and in particular to a kind of power inverter and can be used for builds the power and becomes
The integrated circuit of parallel operation.
Background technology
Switched mode converter is widely used in the power supply of electronic product.Electronic product generally has connection high-voltage power supply
Or connection two kinds of different application scenarios of LVPS, when high-voltage power supply is connected, it is necessary to power inverter carries out voltage
Load is exported energy to after conversion again, and directly can then be exported energy to direct-passing mode when LVPS is connected
Load.For compatible two kinds of application scenarios, power inverter would generally set the protection switch in parallel with main switch or lead directly to and open
Close.Fig. 1 is the schematic diagram of the switched mode converter integrated circuit of prior art.As shown in figure 1, in the switching mode of buck topology
In converter, main switch M1 is connected between the input VIN of power inverter and intermediate ends LX, during rectifier switch M2 is connected to
Between hold between LX and earth terminal.ON-OFF control circuit SLC is connected with the control end of main switch M1 and rectifier switch M2, control two
Person's alternate conduction and shut-off.Protection switch M3 is in parallel with power switch M1, and its control end is connected with charge pump CP.Needing to enter
During protected mode, ON-OFF control circuit SLC is stopped, and charge pump CP controls protection switch M3 switches to straight-through so that input
Voltage is directly output to the output end of power inverter.
But, the area that protection switch M3 increased chip is separately provided, cause cost increase.
The content of the invention
In view of this, the present invention provides a kind of power inverter and integrated circuit so that in IC interior by one
Power switch is multiplexed as the main switch and protection switch (or through swtich) of switched mode converter, so that reduce chip area,
Reduce manufacturing cost.
A kind of first aspect, there is provided power inverter, including：
Power switch, is connected between voltage input end and intermediate ends；
ON-OFF control circuit, is connected with the control end of power switch；And,
Mode selection circuit, is suitable to when selection signal is first state so that the control terminal voltage of power switch is with switch
The exporting change of circuit is controlled, control power switch switches to pass-through state when selection signal is the second state.
Preferably, the power inverter also includes：
Charge pump, is connected with voltage input end；
Wherein, the mode selection circuit when selection signal is the second state so that the power switch control end electricity
Pressure is with charge pump exporting change.
Preferably, the power inverter also includes：
Storage capacitor, is connected between mode selection circuit feeder ear and intermediate ends.
Preferably, the power inverter also includes：
Three state buffer, is connected between the ON-OFF control circuit and the control end of power switch；
The mode selection circuit includes：
Selection circuit, the mode selection circuit feeder ear or intermediate ends voltage output are selected according to input voltage, described
The output end of selection circuit is connected with the Enable Pin of the three state buffer；
First switch, is connected between the control end of the output end of the charge pump and the power switch；And,
Second switch, the input with the selection circuit is connected, the input voltage for adjusting the selection circuit；
Wherein, the first switch is turned on when selection signal is the second state.
Preferably, the mode selection circuit also includes：
First current source, is connected between the output end of the charge pump and the first switch；
Second current source, is connected between the input of the output end of the charge pump and the selection circuit；
3rd current source, is connected with earth terminal；
Wherein, the second switch is connected between the input of the selection circuit and the 3rd current source；It is described
Second switch is turned on when the selection signal is the second state.
Preferably, the mode selection circuit also includes：
4th current source, the output end with the charge pump is connected；
3rd switch, is connected between the 4th current source and the feeder ear of the selection circuit；
Wherein, the 3rd switch is controlled by the output signal of the selection circuit.
Preferably, charge pump output voltage amplitude operationally is equal to power inverter input voltage plus control
Circuit supply voltage.
Preferably, the power inverter also includes：
Rectifier switch, turn-on and turn-off are controlled when selection signal is first state by ON-OFF control circuit, are believed in selection
Number for the second state when be held off.
A kind of second aspect, there is provided integrated circuit, is applied to power inverter, and the integrated circuit includes:
Power switch, is connected between voltage input end and intermediate ends；
ON-OFF control circuit, is connected with the control end of power switch；And,
Mode selection circuit, is suitable to when selection signal is first state so that the control terminal voltage of power switch is with switch
The exporting change of circuit is controlled, control power switch switches to pass-through state when selection signal is the second state.
Preferably, the power inverter also includes：
Charge pump, is connected with voltage input end；
Wherein, the mode selection circuit when selection signal is the second state so that the power switch control end electricity
Pressure water charge pump exporting change.
Preferably, the mode selection circuit includes：
Three state buffer, is connected between the ON-OFF control circuit and the control end of power switch；
Selection circuit, the mode selection circuit feeder ear or intermediate ends voltage output are selected according to input voltage, described
The output end of selection circuit is connected with the Enable Pin of the three state buffer；
First switch, is connected between the control end of the output end of the charge pump and the power switch；
Second switch, the input with the selection circuit is connected, the input voltage for adjusting the selection circuit；
Wherein, the first switch is turned on when selection signal is first state.
Preferably, the mode selection circuit also includes：
First current source, is connected between the output end of the charge pump and the first switch；
Second current source, is connected between the input of the output end of the charge pump and the selection circuit；
3rd current source, is connected with earth terminal；
Wherein, the second switch is connected between the input of the selection circuit and the 3rd current source；It is described
Second switch is turned on when the selection signal is the second state.
Preferably, the mode selection circuit also includes：
4th current source, the output end with the charge pump is connected；
3rd switch, is connected between the 4th current source and the feeder ear of the selection circuit；
Wherein, the 3rd switch is controlled by the output signal of the selection circuit.
The embodiment of the present invention by Setting pattern selection circuit, in IC interior multiplexing power switching device, the
Cause that it works as main switch under one pattern, cause that it works as protection switch under the second mode, thus, it is possible to effectively
Reduce chip area, reduce manufacturing cost.
Brief description of the drawings
By description referring to the drawings to the embodiment of the present invention, of the invention above-mentioned and other purposes, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the schematic diagram of the switched mode converter integrated circuit of prior art；
Fig. 2 is the schematic diagram of the switched mode converter integrated circuit of the embodiment of the present invention；
Fig. 3 is that the circuit of the switched mode converter of the buck topology of the integrated circuit structure of the embodiment of the present invention is illustrated
Figure；
Fig. 4 is the circuit diagram of the direct circuit with protection switch of the integrated circuit structure of the embodiment of the present invention.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
It is detailed to describe some specific detail sections during text is to detailed description of the invention.Do not have for a person skilled in the art
The description of these detail sections can also completely understand the present invention.In order to avoid obscuring essence of the invention, known method, mistake
Journey, flow, element and circuit do not have narration in detail.
Additionally, it should be understood by one skilled in the art that accompanying drawing is provided to descriptive purpose provided herein, and
What accompanying drawing was not necessarily drawn to scale.
It will also be appreciated that in the following description, " circuit " refers to by electric by least one element or sub-circuit
The galvanic circle that connection or electromagnetism are connected and composed." connected when element or circuit " being connected to " another element or element/circuit is claimed
" between two nodes when, it can directly be coupled or be connected to another element or there may be intermediary element, element it
Between connection can be physically, in logic or its combination.Conversely, " connecting when title element " being directly coupled to " or directly
Be connected to " another element when, it is meant that both do not exist intermediary element.
Unless the context clearly requires otherwise, otherwise entire disclosure and " including " in claims, similar etc. "comprising"
Word should be construed to the implication for including rather than exclusive or exhaustive implication；That is, be " including but not limited to " contains
Justice.
In the description of the invention, it is to be understood that term " first ", " second " etc. be only used for describe purpose, without
It is understood that to indicate or implying relative importance.Additionally, in the description of the invention, unless otherwise indicated, the implication of " multiple "
It is two or more.
Fig. 2 is the schematic diagram of the switched mode converter integrated circuit of the embodiment of the present invention.As shown in Fig. 2 described be applied to
The IC for building switched mode converter includes power switch M1, rectifier switch M2, ON-OFF control circuit SLC and pattern
Selection circuit MODE.Wherein, power switch M1 is connected between voltage input end VIN and intermediate ends LX.Rectifier switch M2 is connected
Between intermediate ends LX and earth terminal.The connected mode of power switch M1 and rectifier switch M2 causes that both are suitable to build voltage-dropping type
The switched mode converter of topology.ON-OFF control circuit SLC is connected by the control end of a three state buffer T1 and power switch M1
Connect, while being connected with the control end of rectifier switch M2 by a buffer BUF1.Three state buffer T1 can be according to Enable Pin
Signal switch in working order or between high impedance status (cut-off state).Mode selection circuit MODE is suitable in selection signal
SEL causes the control terminal voltage of power switch with the exporting change of ON-OFF control circuit when being first state (such as low level),
When selection signal is the second state (such as high level), control power switch switches to pass-through state.
In the circuit shown in Fig. 2, mode selection circuit MODE controls tri-state when selection signal SEL is first state
Buffer T1 is switched to working condition so that the control signal from ON-OFF control circuit SLC can be by three state buffer T1
Power switch M1 is applied to, meanwhile, the control signal from ON-OFF control circuit SLC can be applied to rectifier switch by BUF1
M2.Power switch M1 and rectifier switch M2 according to the control alternate conduction of ON-OFF control circuit SLC and shut-off, to cause switching mode
The curtage of converter output stabilization.Thus, in the flrst mode, power switch M1 is opened as the master of switched mode converter
Pass uses.When selection signal SEL is the second state, control three state buffer T1 is switched to high impedance to mode selection circuit MODE
State, so that mask switch controls circuit SLC for the influence of power switch, meanwhile, the output of charge pump CP is applied to work(
Rate switchs M1, so that power switch M1 is switched to pass-through state.Meanwhile, rectifier switch M2 is controlled by ON-OFF control circuit
SLC or mode selection circuit MODE is off state when selection signal SEL is the second state.Thus, electric current can be from electricity
Pressure input VIN flows to output end via power switch M1, and now, power switch M1 is used as the protection switch of direct mode operation.By
This, can be multiplexed to same device for power switching, so as to reduce chip area, reduce manufacturing cost.
Preferably, integrated circuit sets the feeder ear BS that promising mode selection circuit MODE powers, and is applying the integrated electricity
In the power inverter on road, electric capacity C1 can be set between feeder ear BS and intermediate ends LX to maintain voltage between the two
Difference.
Meanwhile, charge pump CP is connected with voltage input end VIN, in its work, can be by the voltage liter of voltage input end
Exported after pressure.Mode selection circuit MODE selection signal SEL be the second state so that power switch M1 control terminal voltage with
The exporting change of charge pump CP, so that power switch M1 is switched to pass-through state.
Specifically, as shown in Fig. 2 mode selection circuit MODE includes selection circuit B1, switch S1, S2 and current source
I1, I2 and I3.Wherein, voltages of the selection circuit B1 according to input voltage selection mode selection circuit feeder ear BS or intermediate ends LX
Output.The output end of selection circuit B1 is connected with the Enable Pin of three state buffer T1.Switch S1 is connected to the defeated of the charge pump
Go out between end and the control end of power switch M1, it is turned on when selection signal is the second state, so as under the second mode, make
Obtaining the output of charge pump can be applied to the control end of power switch M1.Switch S2 is connected with the input of selection circuit, passes through
The input voltage of the switching regulation selection circuit of state switches between high level and low level, so that selection circuit is exported
The voltage of feeder ear BS or the voltage of intermediate ends LX.Switch S2 is turned on when selection signal SEL is first state.Specifically, open
Close the regulation that S2 coordinates the input voltage for carrying out selection circuit with current source I2 and I3.As shown in Fig. 2 current source I2 is connected to
Between the output end of charge pump and the input N1 of selection circuit.Switch S2 and current source I3 is connected in series in the defeated of selection circuit
Enter to hold between N1 and earth terminal.Current source I3 is connected between switch S2 and earth terminal.Thus, when S2 conductings are switched, node
The voltage of N1 is pulled down to the voltage close to intermediate ends LX, and when S2 shut-offs are switched, the voltage of node N1 is pulled high to charge pump
Output voltage.Meanwhile, current source I2 and current source I3 can provide electric current supply for the work of selection circuit.
When selection signal SEL is in first state, ON-OFF control circuit SLC is in running order, switch S1 shut-offs, opens
Close S2 conductings.So as to the voltage of node N1 is pulled low, the voltage of selection circuit B1 selection output intermediate ends LX, this is one relatively low
Voltage, can control so that three state buffer T1 is in running order.Simultaneous Switching S1 is turned off so that charge pump CP output ends pair
Influence is not constituted in the control end of power switch M1.Thus, power switch M1 is according to the control work of ON-OFF control circuit SLC,
So that whole circuit is worked in the way of switch converters.
When selection signal SEL is in the second state, charge pump CP is in running order, and switch S1 conductings, switch S2 is closed
It is disconnected.So as to the voltage of node N1 is driven high, the voltage of selection circuit B1 output feeder ears BS, the voltage causes three state buffer T1
In cut-off state.Meanwhile, switch S1 is turned on and is caused that the voltage Vpump=Vin+Vcc of charge pump CP outputs passes through current source I1
It is applied to power switch M1 control ends.Because under pass-through state, the drive control of power switch M1 needs electric current, therefore, must
Current source I1 can be set when wanting necessary driving current is provided.
Preferably, mode selection circuit MODE can also include switch S3 and current source I4, and both are connected on charge pump CP
Output end and the feeder ear BS of selection circuit B1 between.Wherein, current source I4 is connected with the output end of charge pump CP, switchs S3
It is connected between current source I4 and the feeder ear BS of selection circuit B1.Meanwhile, switch output signal controls of the S3 by selection circuit B1
System.Thus, when selection signal SEL is in the second state, selection circuit B1 exports the voltage of feeder ear BS higher, and this is caused
Switch S3 conductings, thus, current source I4 can provide driving voltage for selection circuit B1, so as to meet selection circuit B1 in output
Electric current output demand higher during for high level.Meanwhile, the voltage of feeder ear BS can be kept.The is in selection signal SEL
During one state, selection circuit B1 is smaller for the demand of electric current, therefore, switch S3 is turned off, and extra electric current is not provided, and
The adverse effect that charge pump outputs voltage change may be caused to feeder ear BS can also be eliminated.
It will be understood by those skilled in the art that above using charge pump as the driving of power switch under direct mode operation as a example by enter
Row explanation, but other type of drive for power switch are readily adaptable for use in the present embodiment.Meanwhile, needed in driving current
When asking smaller, the current source in mode selection circuit can be omitted.Meanwhile, mode selection circuit can be using other similar
Circuit structure realizes identical function.
Fig. 3 is that the circuit of the switched mode converter of the buck topology of the integrated circuit structure of the embodiment of the present invention is illustrated
Figure.As shown in figure 3, cause that selection signal SEL is in low level (first state) by the way that selection signal input SEL is grounded,
Storage capacitor C1 is connected between feeder ear BS and intermediate ends LX.Meanwhile, inductance L1 is connected to intermediate ends LX.Inductance L1's is another
End is connected to the output end of switched mode converter.Meanwhile, electric capacity C2 be connected to switched mode converter output and ground it
Between.Output end voltage Vo after potential-divider network (resistance R1 and R2 that are connected between output and ground) partial pressure via being input to
The feedback pin FB of integrated circuit, the signal of the pin is introduced in ON-OFF control circuit to realize closed-loop control.
Fig. 4 is the circuit diagram of the direct circuit with protection switch of the integrated circuit structure of the embodiment of the present invention.Such as
Shown in Fig. 4, control source list is connected to so that selection signal SEL is in high level (second by by selection signal input SEL
State), storage capacitor C1 is connected between feeder ear BS and intermediate ends LX.Meanwhile, can be in the direct circuit with protection switch
Output and ground between electric capacity C2 is connected to ensure the smooth of output voltage.
Thus, the integrated circuit of the present embodiment can by change peripheral circuit be arranged on switched mode converter and band protect
Protect change between the direct circuit of switch.
The integrated circuit of the embodiment of the present invention is switched by Setting pattern selection circuit in IC interior multiplexing power
Device, causes that it works as power switch in the flrst mode, causes that it works as protection switch under the second mode, by
This, can effectively reduce chip area, reduce manufacturing cost.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (13)
1. a kind of power inverter, including：
Power switch, is connected between voltage input end and intermediate ends；
ON-OFF control circuit, is connected with the control end of power switch；And,
Mode selection circuit, is suitable to when selection signal is first state so that the control terminal voltage of power switch is with switch control
The exporting change of circuit, when selection signal is the second state, control power switch switches to pass-through state.
2. power inverter according to claim 1, it is characterised in that the power inverter also includes：
Charge pump, is connected with voltage input end；
Wherein, the mode selection circuit when selection signal is the second state so that the control terminal voltage of the power switch with
Charge pump exporting change.
3. power inverter according to claim 2, it is characterised in that the power inverter also includes：
Storage capacitor, is connected between mode selection circuit feeder ear and intermediate ends.
4. power inverter according to claim 3, it is characterised in that the power inverter also includes：
Three state buffer, is connected between the ON-OFF control circuit and the control end of power switch；
The mode selection circuit includes：
Selection circuit, the mode selection circuit feeder ear or intermediate ends voltage output, the selection are selected according to input voltage
The output end of circuit is connected with the Enable Pin of the three state buffer；
First switch, is connected between the control end of the output end of the charge pump and the power switch；And,
Second switch, the input with the selection circuit is connected, the input voltage for adjusting the selection circuit；
Wherein, the first switch is turned on when selection signal is the second state.
5. power inverter according to claim 4, it is characterised in that the mode selection circuit also includes：
First current source, is connected between the output end of the charge pump and the first switch；
Second current source, is connected between the input of the output end of the charge pump and the selection circuit；
3rd current source, is connected with earth terminal；
Wherein, the second switch is connected between the input of the selection circuit and the 3rd current source；Described second
Switch is turned on when the selection signal is the second state.
6. power inverter according to claim 5, it is characterised in that the mode selection circuit also includes：
4th current source, the output end with the charge pump is connected；
3rd switch, is connected between the 4th current source and the feeder ear of the selection circuit；
Wherein, the 3rd switch is controlled by the output signal of the selection circuit.
7. the power inverter according to any one of claim 2-6, it is characterised in that the charge pump operationally defeated
Go out voltage magnitude equal to power inverter input voltage plus control circuit supply voltage.
8. the power inverter according to any one of claim 1-6, it is characterised in that the power inverter is also wrapped
Include：
Rectifier switch, turn-on and turn-off are controlled when selection signal is first state by ON-OFF control circuit, are in selection signal
It is held off during the second state.
9. a kind of integrated circuit, is applied to power inverter, and the integrated circuit includes:
Power switch, is connected between voltage input end and intermediate ends；
ON-OFF control circuit, is connected with the control end of power switch；And,
Mode selection circuit, is suitable to when selection signal is first state so that the control terminal voltage of power switch is with switch control
The exporting change of circuit, when selection signal is the second state, control power switch switches to pass-through state.
10. integrated circuit according to claim 9, it is characterised in that the power inverter also includes：
Charge pump, is connected with voltage input end；
Wherein, the mode selection circuit when selection signal is the second state so that the control terminal voltage water of the power switch
Charge pump exporting change.
11. integrated circuit according to claim 9 or 10, it is characterised in that the mode selection circuit includes：
Three state buffer, is connected between the ON-OFF control circuit and the control end of power switch；
Selection circuit, the mode selection circuit feeder ear or intermediate ends voltage output, the selection are selected according to input voltage
The output end of circuit is connected with the Enable Pin of the three state buffer；
First switch, is connected between the control end of the output end of the charge pump and the power switch；
Second switch, the input with the selection circuit is connected, the input voltage for adjusting the selection circuit；
Wherein, the first switch is turned on when selection signal is first state.
12. power inverters according to claim 11, it is characterised in that the mode selection circuit also includes：
First current source, is connected between the output end of the charge pump and the first switch；
Second current source, is connected between the input of the output end of the charge pump and the selection circuit；
3rd current source, is connected with earth terminal；
Wherein, the second switch is connected between the input of the selection circuit and the 3rd current source；Described second
Switch is turned on when the selection signal is the second state.
13. power inverters according to claim 12, it is characterised in that the mode selection circuit also includes：
4th current source, the output end with the charge pump is connected；
3rd switch, is connected between the 4th current source and the feeder ear of the selection circuit；
Wherein, the 3rd switch is controlled by the output signal of the selection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112258.6A CN106787708B (en) | 2016-12-06 | 2016-12-06 | Power inverter and integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112258.6A CN106787708B (en) | 2016-12-06 | 2016-12-06 | Power inverter and integrated circuit |
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| Publication Number | Publication Date |
|---|---|
| CN106787708A true CN106787708A (en) | 2017-05-31 |
| CN106787708B CN106787708B (en) | 2019-04-19 |
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| CN201611112258.6A Active CN106787708B (en) | 2016-12-06 | 2016-12-06 | Power inverter and integrated circuit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437549B1 (en) * | 2000-08-31 | 2002-08-20 | Monolithic Power Systems, Inc. | Battery charger |
| CN102684511A (en) * | 2012-05-31 | 2012-09-19 | 深圳华意隆电气股份有限公司 | Wide-input voltage range arc power-supply device |
| JP5089359B2 (en) * | 2007-12-06 | 2012-12-05 | 三菱電機株式会社 | Power converter |
| CN104065336A (en) * | 2014-06-25 | 2014-09-24 | 浙江大学 | Photovoltaic optimizer with integration of data communication function |
| CN105934865A (en) * | 2015-09-22 | 2016-09-07 | 广东欧珀移动通信有限公司 | Charge control method and apparatus, and electronic device |
-
2016
- 2016-12-06 CN CN201611112258.6A patent/CN106787708B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437549B1 (en) * | 2000-08-31 | 2002-08-20 | Monolithic Power Systems, Inc. | Battery charger |
| JP5089359B2 (en) * | 2007-12-06 | 2012-12-05 | 三菱電機株式会社 | Power converter |
| CN102684511A (en) * | 2012-05-31 | 2012-09-19 | 深圳华意隆电气股份有限公司 | Wide-input voltage range arc power-supply device |
| CN104065336A (en) * | 2014-06-25 | 2014-09-24 | 浙江大学 | Photovoltaic optimizer with integration of data communication function |
| CN105934865A (en) * | 2015-09-22 | 2016-09-07 | 广东欧珀移动通信有限公司 | Charge control method and apparatus, and electronic device |
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| Publication number | Publication date |
|---|---|
| CN106787708B (en) | 2019-04-19 |
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