CN103293477B - Reduce power supply test circuit and the method thereof of electric current of surging - Google Patents
Reduce power supply test circuit and the method thereof of electric current of surging Download PDFInfo
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- CN103293477B CN103293477B CN201210048710.2A CN201210048710A CN103293477B CN 103293477 B CN103293477 B CN 103293477B CN 201210048710 A CN201210048710 A CN 201210048710A CN 103293477 B CN103293477 B CN 103293477B
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Abstract
Reduction is surged the power supply test circuit of electric current and a method thereof, and power supply test circuit comprises a switched power supply, a voltage measurement module and switches control module, and switched power supply comprises an input end, an output terminal and a switch.Reduce the method for electric current of surging to comprise and utilize voltage measurement module to measure the magnitude of voltage of input end and the magnitude of voltage of output terminal, then utilize and switch the magnitude of voltage of control module according to input end and the magnitude of voltage generation one initial responsibility cycle of output terminal, then switch control module transmit one there is initial responsibility cycle control signal to switch, power supply is converted to output terminal by input end according to control signal by final switch.
Description
Technical field
The present invention relates to a kind of reduction to surge the power supply test circuit of electric current and method thereof, particularly one has switching control module, and uses and transmit the control signal with initial responsibility cycle and to suppress to surge the power supply test circuit of electric current and method.
Background technology
Along with the transition in epoch and making rapid progress of science and technology, the life of people is full of convenience because of exploitation fast and progress, but such development causes the destruction of environment also, and make the natural energy resources as oil little by little exhausted, and then allow future and have energy starved situation occur, allow the development of science and technology now mainly with finding and utilizing alternative energy for direction.
Under such development, originally relying on oil is the vehicles such as the automobile of the energy, gradually with the energy-storage travelling wave tube of rechargeable battery for alternative energy.But; under such trend; charge-discharge test for rechargeable battery also more and more has its importance; but protection switch element and fuse must be placed at the output terminal of general battery charging and discharging proving installation; except as prevent proving installation because of internal short-circuit in connect rechargeable battery moment aircraft bombing protection except; also after can preventing user from connecting battery; unexpected electric discharge is done via tester inside with regard to continuous; but proving installation exports can produce electric current of surging greatly instantaneously; to the load of protection switch element be caused, and then reduce its serviceable life.
Therefore, when selecting charge-discharge testing device output protection on-off element and fuse, the larger element of resistance to stream often can be selected to avoid switching the large stress of the electric current produced instantaneously, and then avoid the damage of element.But the element load on cost and spatially that resistance to stream is larger will increase the weight of much, the road that this way is not effected a permanent cure.
See also Fig. 1 and Fig. 2, Fig. 1 shows the block diagram of the power supply test circuit of prior art, and Fig. 2 shows the current diagram of surging of prior art.As shown in Figure 1, power supply test circuit 1 comprises an input end 11, one on-off element 12 and an output terminal 13, output terminal 13 is electrically connected a battery 2 and carries out testing electrical property, when on-off element 12 conducting moment, the electric current of surging of different size can be produced because of the inductive element in power supply test circuit 1 or capacitive element, if direction of current L is for just (namely to flow to battery 2 by power supply test circuit 1), in region A as shown in Figure 2, can learn that electric current of surging is approximately-55 amperes (namely flowing to power supply test circuit 1 by battery 2), such big current flows back to power supply test circuit 1 and on-off element 12 load can be caused excessive, and reduce the life-span that it uses.
In sum, when power supply test circuit starts to carry out testing electrical property to battery, the electric current of surging caused becomes the load of on-off element, and then the problem in the serviceable life of reduction on-off element.
Summary of the invention
The present invention for solve technical matters and object:
Because in the above prior art, when ubiquity power supply test circuit starts to carry out testing electrical property to battery, the electric current of surging caused becomes the load of on-off element, and then the problem in the serviceable life of reduction on-off element.
Edge this, the power supply test circuit that fundamental purpose of the present invention is to provide a kind of reduction to surge electric current and method, power supply test circuit comprises a switched power supply, and switched power supply comprises an input end, an output terminal and a switch, and the method reducing electric current of surging first measures the magnitude of voltage of input end and output terminal, use and calculate initial responsibility cycle, and transmit the control signal with initial responsibility cycle according to this.
The technological means that the present invention deals with problems:
The present invention solves necessary technology means that the problem of prior art adopts to be to provide a kind of reduction and to surge the power supply test circuit of electric current and method thereof, and the power supply test circuit wherein reducing electric current of surging comprises a switched power supply (switching-modepowersupply), a voltage measurement module and switches control module.Switched power supply comprises an input end, an output terminal and a switch, and switch controlled by a control signal, voltage measurement module is electrically connected at switched power supply, and voltage measurement module is in order to the magnitude of voltage of the magnitude of voltage and output terminal of measuring input end; Switch control module and be electrically connected at switch and voltage measurement module, switch control module in order to produce control signal.Wherein, control signal has an initial responsibility cycle in order to reduce electric current of surging, and initial responsibility cycle determined according to the magnitude of voltage of input end and the magnitude of voltage of output terminal.
In addition, reduce the method for electric current of surging to comprise and utilize a voltage measurement module to measure the magnitude of voltage of input end and the magnitude of voltage of output terminal, then utilize and switch the magnitude of voltage of control module according to input end and the magnitude of voltage generation one initial responsibility cycle of output terminal, then switch control module transmit one there is initial responsibility cycle control signal to switch, power supply is converted to output terminal by input end according to control signal by final switch.
Preferably, above-mentioned reduction is surged in the power supply test circuit of electric current and method thereof, input end is electrically connected an input voltage source, and output terminal is electrically connected a battery, and switched power supply is a buck power supply changeover device (buckconverter), the magnitude of voltage Vi of input end, the magnitude of voltage Vo of this output terminal, initial responsibility cycle Vo/Vi.
In addition, switched power supply is a full-bridge type power supply changeover device (fullbridgeconverter), this full-bridge type power supply changeover device comprises the transformer that has coil ratio N1/N2, the magnitude of voltage Vi of this input end, the magnitude of voltage Vo of this output terminal, this initial responsibility cycle (Vo/Vi) * (N1/N2), and the initial responsibility cycle of control signal is being converted to a default responsibility cycle by switching control module after a time delay.
The present invention's effect against existing technologies:
Compared to prior art, when ubiquity power supply test circuit starts to carry out testing electrical property to battery, the electric current of surging caused becomes the load of on-off element, and then the problem in the serviceable life of reduction on-off element.
The invention provides a kind of reduction to surge the power supply test circuit of electric current and method thereof, it is the magnitude of voltage first measuring input end and output terminal, uses and calculates initial responsibility cycle, and transmits the control signal with initial responsibility cycle according to this.Can really reduce by inputting such control signal and suppress electric current of surging.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 shows the block diagram of the power supply test circuit of prior art;
Fig. 2 shows the current diagram of surging of prior art;
Fig. 3 shows the block diagram of power supply test circuit of the present invention;
Fig. 4 shows the schematic diagram of the power supply test circuit of buck power supply changeover device of the present invention;
Fig. 5 shows the schematic diagram of the power supply test circuit of full-bridge type power supply changeover device of the present invention;
Fig. 6 shows the electric current suppressing method process flow diagram of surging that present pre-ferred embodiments provides; And
Fig. 7 and Fig. 7 A shows the suppression of present pre-ferred embodiments and to surge current diagram.
Wherein, Reference numeral
1 power supply test circuit
11 input ends
12 on-off elements
13 output terminals
2 batteries
3 power supply test circuit
31 switched power supplies
311 input ends
312 switches
313 output terminals
314 transformers
32 voltage measurement modules
33 switch control module
4 input voltage sources
5 batteries
S1 control signal
A is interval
L direction of current
The N1 first siding ring number of turn
N2 the lateral coil number of turn
Embodiment
Because reduction provided by the present invention is surged in the power supply test circuit of electric current and method thereof, can be widely used in various proving installation, its combination embodiment is too numerous to enumerate, therefore this is no longer going to repeat them, only illustrates with preferred embodiment.
Refer to Fig. 3, Fig. 3 shows the block diagram of power supply test circuit of the present invention.Power supply test circuit 3 comprises a switched power supply (switching-modepowersupply) 31, voltage measurement module 32 and and switches control module 33.Switched power supply 31 comprises input end 311, switch 312 and an output terminal 313, input end 311 is electrically connected an input voltage source 4, output terminal 313 is electrically connected a battery 5, switch 312 is electrically connected input end 311 and output terminal 313, and be electrically connected and switch control module 33, with the control signal S1 produced according to switching control module 33, the power supply produced by input voltage source 4 is converted to output terminal 313 by input end 311.Voltage measurement module 32 is electrically connected at input end 311 and the output terminal 313 of switched power supply 31, in order to the magnitude of voltage of the magnitude of voltage and output terminal 313 of measuring input end 311.Switch control module 33 and be electrically connected voltage measurement module 32, the control signal S1 of an initial responsibility cycle can be had in order to reduce electric current of surging according to the magnitude of voltage generation of the magnitude of voltage of input end 311 and output terminal 313.In present pre-ferred embodiments, switched power supply 31 can be a buck power supply changeover device (buckconverter) or full-bridge type power supply changeover device (fullbridgeconverter).
Refer to Fig. 4, Fig. 4 shows the schematic diagram of the power supply test circuit of buck power supply changeover device of the present invention.When switched power supply 31 is buck power supply changeover device, voltage measurement module 32 is electrically connected at input end 311 and the output terminal 313 of switched power supply 31, in order to the magnitude of voltage of the magnitude of voltage and output terminal 313 of measuring input end 311, switch control module 33 and be electrically connected at switch 312 and voltage measurement module 32, and produce the control signal S1 with initial responsibility cycle Di according to the magnitude of voltage of input end 311 and the magnitude of voltage of output terminal 313, the power supply produced by input voltage source 4 in order to gauge tap 312 is converted to output terminal 313 by input end 311, wherein, the magnitude of voltage of input end 311 is defined as Vi, the magnitude of voltage of output terminal 313 is defined as Vo, and initial responsibility cycle Di is defined as the magnitude of voltage of magnitude of voltage divided by input end 311 of output terminal 313, i.e. Di=Vo/Vi.
Refer to Fig. 5, Fig. 5 shows the schematic diagram of the power supply test circuit of full-bridge type power supply changeover device of the present invention.When switched power supply 31 is full-bridge type power supply changeover device, it comprises four switches 312 (only indicating in figure) and a transformer 314, and the first siding ring number of turn of transformer 314 is N1, and the second siding ring number of turn is N2.Voltage measurement module 32 is electrically connected at input end 311 and the output terminal 313 of switched power supply 31, in order to the magnitude of voltage of the magnitude of voltage and output terminal 313 of measuring input end 311, switch control module 33 and be electrically connected at those switches 312 and voltage measurement module 32, and produce the control signal S1 with initial responsibility cycle Di according to the magnitude of voltage of input end 311 and the magnitude of voltage of output terminal 313, in order to control those switches 312, power supply is converted to output terminal 313 by input end 311, wherein, the magnitude of voltage of input end 311 is defined as Vi, the magnitude of voltage of output terminal 313 is defined as Vo, and initial responsibility cycle Di is defined as the magnitude of voltage of magnitude of voltage divided by input end 311 of output terminal 313, and be multiplied by the first siding ring number of turn N1 of the transformer 314 and ratio N1/N2 of second siding ring number of turn N2, i.e. Di=(Vo/Vi) * (N1/N2).
See also Fig. 3 and Fig. 6, Fig. 6 shows the electric current suppressing method process flow diagram of surging that present pre-ferred embodiments provides.As shown in the figure, its electric current suppressing method of surging is as rear:
Step S101: input end is connected an input voltage source, output terminal connects a battery.
Step S102: the magnitude of voltage measuring input end and output terminal.
Step S103: the magnitude of voltage according to input end and output terminal produces an initial responsibility cycle.
Step S104: transmit there is initial responsibility cycle control signal to switch.
Step S105: input voltage source is converted to output terminal by input end.
Above-mentioned surges in electric current suppressing method, after step starts, enter step Si01 immediately and input end is connected an input voltage source, output terminal connects a battery, and input end 311 is being connected an input voltage source 4, after output terminal 313 connects a battery 5, enter the magnitude of voltage that step S102 measures input end and output terminal immediately.Wherein, be measure the magnitude of voltage Vi of the input end 311 and magnitude of voltage Vo of output terminal 313 with voltage measurement module 32.
After measuring the magnitude of voltage Vi of the input end 311 and magnitude of voltage Vo of output terminal 313 with voltage measurement module 32, the magnitude of voltage entering step S103 foundation input end and output terminal immediately produces an initial responsibility cycle.Wherein, switching control module 33 is produce an initial responsibility cycle Di according to the magnitude of voltage Vi of input end 311 and the magnitude of voltage Vo of output terminal 313, it is worth mentioning that, if when switched power supply 31 is for buck power supply changeover device, initial responsibility cycle Di is the magnitude of voltage Vi of magnitude of voltage Vo divided by input end 311 of output terminal 313, i.e. Di=Vo/Vi; If switched power supply 31 is full-bridge type power supply changeover device, and the coil ratio of its transformer is when being for N1/N2, initial responsibility cycle Di is the magnitude of voltage Vi of magnitude of voltage Vo divided by input end 311 of output terminal 313, and be multiplied by coil ratio N1/N2, i.e. Di=(Vo/Vi) * (N1/N2).
After in switching, control module 33 produced initial responsibility cycle Di, enter immediately step S104 transmit there is initial responsibility cycle Di control signal to switch.Wherein, switch control module 33 transmit immediately there is initial responsibility cycle Di control signal S1 to switch 312.
Transmit after complete has the control signal S1 of initial responsibility cycle Di in switching control module 33, enter step S105 immediately and input voltage source is converted to output terminal by input end.Wherein, because switch 312 controlled by control signal S1, therefore input voltage source is converted to output terminal 313 by input end 311 according to control signal S1 by switch 312.In addition, switching control module 33 after a time delay, is the initial responsibility cycle Di of control signal S1 is converted to one preset responsibility cycle D and continue transmit and input to switch 312, and lasting reduction is surged electric current by this.And after input voltage source is converted to output terminal 313 by input end 311 by switch 312, carries out step immediately and terminate.
See also Fig. 2, Fig. 7 and Fig. 7 A, Fig. 7 and Fig. 7 A shows the suppression of present pre-ferred embodiments and to surge current diagram.As shown in Fig. 2 and Fig. 7, in Fig. 2, when not transmitting the control signal with initial responsibility cycle Di, the electric current of surging of its interval A is maximum is approximately-55 amperes, and to be surged current methods by reduction provided by the present invention, and after being applied to prior art (i.e. the power supply test circuit of Fig. 1), the electric current of surging that Fig. 7 corresponds to the interval A of Fig. 2 is restrained significantly, and transfers normal testing electrical property electric current to.
In addition, more specifically can be recognized by Fig. 7 A, the relativeness of the curve of voltage difference more specifically of its viewing area A, current curve and initial responsibility cycle Di, as seen from the figure, voltage difference V and electric current I of surging have the control signal of initial responsibility cycle Di along with input and be suppressed, namely voltage difference diminishes, and electric current of surging also diminishes thereupon.In addition, it is worth mentioning that, the initial responsibility cycle Di of the control signal of this preferred embodiment is 66%.
In sum, reduction provided by the invention is surged in the power supply test circuit of electric current and method thereof, by the magnitude of voltage of the magnitude of voltage and output terminal of first measuring the input end of power supply test circuit, use and calculate initial responsibility cycle, and input has the control signal of initial responsibility cycle according to this, really can reduce electric current of surging by inputting such control signal.
In addition; surge after electric current by reducing, power supply test circuit can use protection switch that current rating is less and fuse to come as protective device, and then saves protection switch and fuse taken up space; power density is improved, and the cost of protection switch and fuse can be reduced.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (8)
1. a reduction is surged the power supply test circuit of electric current, the surge power supply test circuit of electric current of this reduction comprises a switched power supply and a voltage measurement module, this switched power supply comprises an input end, an output terminal and a switch, voltage measurement module is electrically connected at this switched power supply, and in order to the magnitude of voltage of the magnitude of voltage and this output terminal of measuring this input end, it is characterized in that, this input end is electrically connected an input voltage source, this output terminal is electrically connected a battery, and this reduction is surged, the power supply test circuit of electric current comprises:
One switches control module, and be electrically connected at this switch and this voltage measurement module, this switching control module is in order to produce a control signal to control this switch;
Wherein this control signal has an initial responsibility cycle in order to reduce electric current of surging, and this initial responsibility cycle determined by the magnitude of voltage of this input end and the magnitude of voltage of this output terminal.
2. reduction according to claim 1 is surged the power supply test circuit of electric current, and it is characterized in that, this switched power supply is the magnitude of voltage Vo of the magnitude of voltage Vi of a buck power supply changeover device, this input end, this output terminal, this initial responsibility cycle Vo/Vi.
3. reduction according to claim 1 is surged the power supply test circuit of electric current, it is characterized in that, this switched power supply is a full-bridge type power supply changeover device, this full-bridge type power supply changeover device comprises the transformer that has coil ratio N1/N2, the magnitude of voltage Vi of this input end, the magnitude of voltage Vo of this output terminal, this initial responsibility cycle (Vo/Vi) * (N1/N2).
4. reduction according to claim 1 is surged the power supply test circuit of electric current, it is characterized in that, this switching control module presets responsibility cycle this initial responsibility cycle of this control signal being converted to one after a time delay.
5. a reduction is surged the method for electric current, be applied to a power supply test circuit, this power supply test circuit comprises a switched power supply, and this switched power supply comprises an input end, an output terminal and a switch, the surge method of electric current of this reduction comprises and utilizes a voltage measurement module to measure the magnitude of voltage of this input end and the magnitude of voltage of this output terminal, it is characterized in that, the surge method of electric current of this reduction comprises following steps:
This input end is electrically connected an input voltage source;
This output terminal is electrically connected a battery;
A switching control module is utilized to produce an initial responsibility cycle according to the magnitude of voltage of this input end and the magnitude of voltage of this output terminal;
This switching control module transmit one there is this initial responsibility cycle control signal to this switch; And
This input voltage source is converted to this output terminal by this input end according to this control signal by this switch.
6. reduction according to claim 5 is surged the method for electric current, it is characterized in that, this switched power supply is the magnitude of voltage Vi of a buck power supply changeover device, this input end, the magnitude of voltage Vo of this output terminal, this switching control module produces this initial responsibility cycle Vo/Vi.
7. reduction according to claim 5 is surged the method for electric current, it is characterized in that, this switched power supply is a full-bridge type power supply changeover device, this full-bridge type power supply changeover device comprises the transformer that has coil ratio N1/N2, the magnitude of voltage Vi of this input end, the magnitude of voltage Vo of this output terminal, this switching control module produces this initial responsibility cycle (Vo/Vi) * (N1/N2).
8. reduction according to claim 5 is surged the method for electric current, it is characterized in that, also comprises:
This initial responsibility cycle of this control signal, after a time delay, is converted to one and presets responsibility cycle by this switching control module.
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| CN201210048710.2A CN103293477B (en) | 2012-02-27 | 2012-02-27 | Reduce power supply test circuit and the method thereof of electric current of surging |
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| CN201210048710.2A CN103293477B (en) | 2012-02-27 | 2012-02-27 | Reduce power supply test circuit and the method thereof of electric current of surging |
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| CN103293477B true CN103293477B (en) | 2015-11-25 |
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Cited By (1)
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| KR101644023B1 (en) * | 2014-05-23 | 2016-07-29 | 대성전기공업 주식회사 | Apparatus and method for controlling bidirectional dc-dc converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104714176A (en) * | 2013-12-13 | 2015-06-17 | 致茂电子股份有限公司 | Power source testing device reducing surge current and control method of power source testing device |
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| CN101106329A (en) * | 2006-07-12 | 2008-01-16 | 电力集成公司 | Method and apparatus for a high voltage power supply circuit |
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| US20070040516A1 (en) * | 2005-08-15 | 2007-02-22 | Liang Chen | AC to DC power supply with PFC for lamp |
| US7948775B2 (en) * | 2008-06-16 | 2011-05-24 | Lu wei-chun | Duty-cycle-controlled half-bridge resonant converter |
| US9467053B2 (en) * | 2009-07-09 | 2016-10-11 | Infineon Technologies Ag | Controlling a multi-mode switching converter |
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|---|---|---|---|---|
| CN101106329A (en) * | 2006-07-12 | 2008-01-16 | 电力集成公司 | Method and apparatus for a high voltage power supply circuit |
| TW201039523A (en) * | 2009-04-16 | 2010-11-01 | Delta Electronics Inc | Power supply and power system employing plural power supplies |
| CN102095921A (en) * | 2009-12-11 | 2011-06-15 | 鸿富锦精密工业（深圳）有限公司 | Surging current test circuit |
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| KR101644023B1 (en) * | 2014-05-23 | 2016-07-29 | 대성전기공업 주식회사 | Apparatus and method for controlling bidirectional dc-dc converter |
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