CN100421044C - Shunting device and method - Google Patents
Shunting device and method Download PDFInfo
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- CN100421044C CN100421044C CNB2005100537239A CN200510053723A CN100421044C CN 100421044 C CN100421044 C CN 100421044C CN B2005100537239 A CNB2005100537239 A CN B2005100537239A CN 200510053723 A CN200510053723 A CN 200510053723A CN 100421044 C CN100421044 C CN 100421044C
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Abstract
The present invention provides a shunting device and a method. The shunting device comprise an input end, an output end, a shunting control end, a serial connection electric crystal, a static voltage generating unit, a feedback control circuit and a shunting control unit, wherein the shunting control end provides a shunting control interface; the serial connection electric crystal receives input voltage of a receiving input end and provides output voltage and output current for the output end of the shunting device; the static voltage generating unit generates reference voltage; the feedback control circuit is coupled with the output end of the shunting detection and the serial connection electric crystal, and is used for detecting the output current so as to output current detection signals, and adjusting and outputting control signals according to reference signals to the serial connection electric crystal so as to control the output of the shunting device. Besides, the shunting control unit is coupled with the shunting control end of the shunting device and the feedback control circuit, and is used for generating bus bar signals according to the current detection signals and reference voltage and generating reference signals according to the reference voltage, the bus bar signals and the current detection signals.
Description
Technical field
The present invention relates to a kind of part flow arrangement and method, particularly include about adjusting a kind of part flow arrangement and the method for shunt volume separately automatically.
Background technology
Life-span and its operating temperature of general element are closely bound up.When the magnitude of current of this element of flowing through is big more, will cause the operating temperature of this element high more.For example, when the input voltage of voltage stabilizer is very high.The pressure drop of output current and voltage stabilizer produces power consumption.This power consumption causes the temperature of voltage stabilizer to rise.
Voltage stabilizer is applied in the power-supply management system of various electric equipment products usually, so that adjustable power supply to be provided.Fig. 1 is the typical circuit that shows voltage stabilizer.Voltage stabilizer comprises unadjusted DC input voitage V
IN, output serial connection electric crystal 10, regulated DC output voltage V
0With by resistance 31 and 32 voltage dividers of being formed.Voltage stabilizer more comprises the feedback control circuit that is coupled to serial connection electric crystal 10.This feedback control circuit comprises error amplifier 20, and by deciding the reference voltage V that voltage generation unit 40 is produced
REFFeedback control circuit is connected to VD V via voltage divider
0Resistance 31 and 32 is series at regulated DC output voltage V
0And between the ground connection.Dividing point between the resistance 31 and 32 is connected to the anode of error amplifier 20.Reference voltage V
REFBe connected to the negative terminal of error amplifier 20.The output terminal of error amplifier 20 then is connected to the gate of output serial connection electric crystal 10.This feedbacks the gate voltage of control loop modulation serial connection electric crystal 10, with the impedance of control serial connection electric crystal (be transistor, below all be called electric crystal) 10.According to this gate voltage, the output terminal of voltage stabilizer is given in the different accurate position of electric current of serial connection electric crystal 10 supplies.Galvanic current is pressed no matter the change of loading condition and input voltage, the modulation of gate voltage can make voltage stabilizer output.
Wherein first shortcoming of known voltage stabilizer is that operating temperature is too high, when especially input voltage is very high.Second shortcoming is output current I
0With the pressure drop V that is connected in series electric crystal 10
DProduce power attenuation P
DPower attenuation P
DCause the operating temperature of voltage stabilizer to promote.Because life-span and its operating temperature of voltage stabilizer are closely bound up, in order to promote its fiduciary level, operating temperature that must the reduction voltage stabilizer, and one of the factor that influences the operating temperature of voltage stabilizer is to depend on its encapsulation.This encapsulation determines thermal resistance and limits its heat radiation, and the encapsulation of lower thermal resistance will raise the cost.
This shows that above-mentioned existing part flow arrangement and method obviously still have inconvenience and defective, and demand urgently further being improved in structure, method and use.In order to solve the problem that voltage stabilizer exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing voltage stabilizer exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of new part flow arrangement and method, can improve general existing voltage stabilizer, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcoming the defective that existing part flow arrangement exists, is to make it share the electric current of desire output automatically with a plurality of part flow arrangements parallel with one another and a kind of part flow arrangement of new structure, technical matters to be solved are provided, and the reduction operating temperature, thereby be suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing shunt method exists, and provide a kind of new shunt method, technical matters to be solved is to make its each part flow arrangement parallel with one another can control and share the electric current of desire output automatically, so that reduce the operating temperature of each part flow arrangement, thereby be suitable for practicality more.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, according to part flow arrangement of the present invention, it comprises input end, output terminal, flow-dividing control end, serial connection electric crystal, decides voltage generation unit, feedback control circuit and flow-dividing control unit.The flow-dividing control end provides the flow-dividing control interface.The serial connection electric crystal receives the input voltage of input end, and output voltage and the output current output terminal to part flow arrangement is provided.Decide the voltage generation unit and produce reference voltage.The output terminal that feedback control circuit is coupled to part flow arrangement be connected in series electric crystal, in order to detect output current and according to this output current detect signal, and according to reference signal adjustment and output controlling signal to being connected in series electric crystal, with the output of control part flow arrangement.The flow-dividing control unit is coupled to the flow-dividing control end and the feedback control circuit of part flow arrangement, in order to according to current detecting signal and reference voltage and to produce bus-bar (be bus, below all be called bus-bar) signal, and according to reference voltage, bus-bar signal and current detecting signal generation reference signal.
Again, in order to achieve the above object, according to the described part flow arrangement of preferred embodiment of the present invention, above-mentioned feedback control circuit comprises current detecting unit, voltage divider and amplifier.Current detecting unit is coupled to the serial connection electric crystal, in order to detect output current and to produce corresponding current detecting signal according to this.Voltage divider is coupled to output terminal, in order to output voltage carried out dividing potential drop and to produce corresponding feedback voltage according to this.The anode of amplifier is coupled to voltage divider to receive feedback voltage, and its negative terminal receives reference signal, and its output terminal output controlling signal is with control serial connection electric crystal.
Moreover, in order to achieve the above object, the described part flow arrangement of the preferred embodiment of foundation, above-mentioned flow-dividing control unit comprise draw high voltage cell, draw high resistance, current generating unit, input block, output unit and adjustment unit.Draw high voltage cell and produce the corresponding voltage that draws high according to reference voltage.Drawing high resistance is coupled to and draws high between voltage cell and the flow-dividing control end.Current generating unit produces corresponding first current signal and second current signal according to the current detecting signal.Input block is coupled to the flow-dividing control end, in order to according to drawing high voltage and the bus-bar signal produces the 3rd current signal.Output unit is coupled to the flow-dividing control end, in order to according to second current signal with draw high voltage and produce the bus-bar signal.Adjustment unit is coupled to input block and current generating unit, produces and adjust reference signal in order to foundation reference voltage, first current signal and the 3rd current signal.
In addition, in order to achieve the above object,, comprise input end, output terminal, flow-dividing control end, serial connection electric crystal, feedback control circuit and flow-dividing control unit according to proposing a kind of part flow arrangement.The flow-dividing control end provides the flow-dividing control interface.The serial connection electric crystal receives the input voltage of this input end, and output voltage is provided and outputs current to this output terminal.Feedback control circuit is coupled to output terminal, in order to the adjustment of foundation reference signal and output controlling signal to being connected in series electric crystal, with the output of control part flow arrangement.The flow-dividing control unit is coupled to flow-dividing control end and feedback control circuit, in order to produce reference signal to adjust controlling signal.
In addition, in order to achieve the above object, propose a kind of part flow arrangement, comprise input end, output terminal, flow-dividing control end, output unit, feedback control circuit and flow-dividing control unit according to the present invention.Output unit provides output voltage and outputs current to output terminal.Feedback control circuit is coupled to output terminal and output unit, in order to detect output current and according to this output current detect signal, and according to reference signal adjustment and output controlling signal to output unit, with the output of control part flow arrangement.The flow-dividing control unit is coupled to flow-dividing control end and feedback control circuit, in order to producing the bus-bar signal according to current detecting signal and reference voltage, and produces reference signal according to reference voltage, bus-bar signal and current detecting signal.
In addition, in order to achieve the above object, the shunt method according to the present invention proposes in order to automatic adjustment most part flow arrangement outputs separately parallel with one another, provides an output always with a minute stream mechanism.This shunt method comprises that the flow-dividing control end with each part flow arrangement couples mutually; Make each part flow arrangement transmit the bus-bar signal according to its output state mutually via the flow-dividing control end separately; And make each part flow arrangement respectively according to the bus-bar signal of its output state and flow-dividing control end, and its output of each self-adjusting provides this total output with a minute stream mechanism.
In addition, in order to achieve the above object, according to preferred embodiment of the present invention described shunt method, the above-mentioned step that makes each part flow arrangement transmit the bus-bar signal according to its output state mutually via the flow-dividing control end separately comprises provides reference voltage; Make each part flow arrangement detect its output current separately; And make each part flow arrangement separately according to the result and the reference voltage that detect output current, and produce the bus-bar signal.In addition, above-mentionedly each part flow arrangement is comprised with the bus-bar signal and the step of each its output of self-adjusting according to its output state respectively reference voltage is provided; Make each part flow arrangement separately according to its output state, reference voltage and bus-bar signal, produce reference signal separately; Make each part flow arrangement separately according to its output state and corresponding reference signal, and each self-adjusting and export controlling signal; And make each part flow arrangement separately according to the controlling signal of correspondence, and each self-adjusting is also supplied output voltage and output current, and wherein output voltage and output current are the output of part flow arrangement.
Via as can be known above-mentioned, the present invention the invention relates to a kind of part flow arrangement and method.This part flow arrangement comprises input end, output terminal, flow-dividing control end, serial connection electric crystal, decides voltage generation unit, feedback control circuit and flow-dividing control unit.The flow-dividing control end provides the flow-dividing control interface.The serial connection electric crystal receives the input voltage of input end, and output voltage and the output current output terminal to part flow arrangement is provided.Decide the voltage generation unit and produce reference voltage.The output terminal that feedback control circuit is coupled to part flow arrangement be connected in series electric crystal, in order to detect output current and according to this output current detect signal, and according to reference signal adjustment and output controlling signal to being connected in series electric crystal, with the output of control part flow arrangement.The flow-dividing control unit is coupled to the flow-dividing control end and the feedback control circuit of part flow arrangement, in order to producing the bus-bar signal according to current detecting signal and reference voltage, and produces reference signal according to reference voltage, bus-bar signal and current detecting signal.
By technique scheme, part flow arrangement of the present invention and method have following advantage at least: the present invention is because of adopting a plurality of part flow arrangements structure parallel with one another, to share total output current of part flow arrangement, therefore reduce the output current of each part flow arrangement, and then reduce its operating temperature.Simultaneously, because each part flow arrangement all can detect the output state of self at any time automatically, and see through flow-dividing control end output bus-bar signal separately according to its output state, therefore each part flow arrangement all can automatically be adjusted its output current according to the bus-bar signal of its flow-dividing control end, and reaches the purpose of shunting.
In sum, part flow arrangement that the present invention is special and method make it share the electric current of desire output automatically with a plurality of part flow arrangements parallel with one another, and reduce operating temperature, thereby be suitable for practicality more.It has above-mentioned many advantages and practical value, and in like product and method, do not see have similar structural design and method to publish or use and really genus innovation, no matter it all has bigger improvement on product structure, method or function, have large improvement technically, and produced handy and practical effect, and more existing voltage stabilizer has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the typical circuit that shows voltage stabilizer.
Fig. 2 is the preferred embodiment that has the voltage stabilizer of flow-dividing control function according to the present invention's explanation.
Fig. 3 is the preferred embodiment that the stable-pressure device of a plurality of voltage stabilizers in parallel is described according to the present invention.
Fig. 4 is the preferred embodiment that the flow-dividing control unit is described according to the present invention.
Fig. 5 is the preferred embodiment that current generating unit is described according to the present invention.
Fig. 6 is the preferred embodiment that input block is described according to the present invention.
Fig. 7 is the preferred embodiment that adjustment unit is described according to the present invention.
Fig. 8 is the preferred embodiment that output unit is described according to the present invention.
10: serial connection electric crystal 20: error amplifier
15,101～105,162～169,201,202,251～253: electric crystal
31,32,254: resistance 40: decide the voltage generation unit
50: flow-dividing control unit 55: operational amplifier
100: current generating unit 150: input block
155: offset voltage 160: buffer amplifier
161: current source 200: adjustment unit
207: unity gain buffer 250: output unit
257: unity gain amplifier
CS: flow-dividing control end I
1: first current signal
I
2: the second current signal I
M: the current detecting signal
IN: input end I
0: output current
OUT: output terminal I
X: the 3rd current signal
R
1: draw high resistance R
2: input resistance
R
3: adjust resistance R
4: output resistance
V
B: bus-bar signal V
G: controlling signal
V
IN: unadjusted DC input voitage V
M: draw high voltage
V
0: adjusted direct current is exported electric V
D: the pressure drop of serial connection electric crystal
V
R: reference signal V
REF, V
R1: reference voltage
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to part flow arrangement and its embodiment of method, structure, method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The present invention will be with following embodiment, the flow-dividing control end that utilizes part flow arrangement is described and reaches the automatic control function of shunting.For convenience of description, will represent part flow arrangement with voltage stabilizer among the following embodiment, and the preferred embodiment of part flow arrangement will be described with a plurality of voltage stabilizers stable-pressure device parallel with one another.
Seeing also shown in Figure 2ly, is the preferred embodiment that has the voltage stabilizer of flow-dividing control function according to the present invention explanation.This voltage stabilizer comprises input end IN, output terminal OUT and flow-dividing control end CS.Wherein, flow-dividing control end CS is in order to provide the interface of flow-dividing control.The input voltage V of output unit (for example implementing) reception input end IN with serial connection electric crystal 10 at this
IN, and according to controlling signal adjustment output voltage V
0With output current I
0, and via output terminal OUT output voltage V
0With output current I
0Decide voltage generation unit 40 and produce reference voltage V
R1
Feedback control circuit is coupled to output terminal and is connected in series electric crystal 10, in order to detect output current I
0And output current detects signal I according to this
M, and according to reference signal V
RAdjust and output controlling signal V
GTo being connected in series electric crystal 10, with the output of control voltage stabilizer.Feedback control circuit comprises voltage divider and amplifier (for example error amplifier) 20.Voltage divider is coupled to output terminal OUT, in order to output voltage V
0Carry out dividing potential drop and produce corresponding feedback voltage according to this.Formed with resistance 32 with the resistance 31 that is serially connected with between output terminal OUT and the ground connection GND at this voltage divider.The anode of amplifier 20 is coupled to voltage divider to receive feedback voltage, and its negative terminal receives reference signal V
RThe output terminal output controlling signal V of amplifier 20
G, with of the output of control serial connection electric crystal 10 with voltage stabilizer.Current detecting unit is coupled to serial connection electric crystal 10, in order to foundation output current I
0Produce corresponding current detecting signal I
MFor example implement at this current detecting unit, utilize electric crystal 15 and be connected in series electric crystal 10 formation current mirrors, so that the generation of the drain of electric crystal 15 is corresponding to output current I with electric crystal 15
0Current detecting signal I
M
Flow-dividing control unit 50 is coupled to flow-dividing control end CS, decides voltage generation unit 40 and feedback control circuit, in order to according to current detecting signal I
MWith reference voltage V
R1And generation bus-bar signal V
BAnd export flow-dividing control end CS to.This bus-bar signal V
BExpression output current I
0The accurate position of electric current.Flow-dividing control unit 50 is more according to reference voltage V
R1, flow-dividing control end CS bus-bar signal V
BWith current detecting signal I
MProduce reference signal V
RThis voltage stabilizer is according to reference signal V
RIn order to output controlling signal V
GTo adjust the output of voltage stabilizer.
Seeing also shown in Figure 3ly, is the preferred embodiment that the stable-pressure device of a plurality of voltage stabilizers in parallel is described according to the present invention.Stable-pressure device comprises the voltage stabilizer of a plurality of parallel connections, and each voltage stabilizer has input end IN, output terminal OUT and flow-dividing control end CS separately.The input end IN of each voltage stabilizer receives the input voltage V of stable-pressure device jointly
INThe output terminal OUT of each voltage stabilizer supplies the output voltage V of stable-pressure device jointly
0, to share output current.The flow-dividing control end CS of each voltage stabilizer couples mutually, so that control the shunting ratio of each voltage stabilizer automatically by each flow-dividing control end.Wherein, the voltage stabilizer arbitration bus-bar signal V that has High Output Current
BArbitration bus-bar signal V
BVoltage stabilizer be defined as main voltage stabilizer, other voltage stabilizers are auxiliary stabilizer, will follow the trail of bus-bar signal V
BTo share output current.
Seeing also shown in Figure 4ly, is the preferred embodiment that flow-dividing control unit 50 is described according to the present invention.Flow-dividing control unit 50 comprises and draws high voltage cell, draws high resistance R
1, current generating unit 100, input block 150, output unit 250 and adjustment unit 200.Draw high voltage cell according to reference voltage V
R1Generation draws high voltage V
M, it comprises operational amplifier 55, resistance 56 and resistance 57.Reference voltage V
R1Be coupled to the anode of operational amplifier 55.Draw high resistance R
1Be coupled to and draw high between voltage cell and the flow-dividing control end CS.Current generating unit 100 is according to current detecting signal I
MProduce the first current signal I
1With the second current signal I
2Input block 150 is coupled to flow-dividing control end CS, draws high voltage V in order to foundation
MWith bus-bar signal V
BProduce the 3rd current signal I
XOutput unit 250 is coupled to flow-dividing control end CS, in order to the foundation second current signal I
2With draw high voltage V
MProduce bus-bar signal V
BAdjustment unit 200 is coupled to decides voltage generation unit 40, current generating unit 100 and input block 150, in order to foundation reference voltage V
R1, the first current signal I
1With the 3rd current signal I
XProduce and adjust reference signal V
R
Seeing also shown in Figure 5ly, is the preferred embodiment that current generating unit 100 is described according to the present invention.See through electric crystal 101,102,103,104 and 105 formed current mirrors, current generating unit 100 can produce corresponding to current detecting signal I
MThe first current signal I
1With the second current signal I
2
Seeing also shown in Figure 6ly, is the preferred embodiment that input block 150 is described according to the present invention.Input block 150 comprises input resistance R
2With buffer amplifier 160.Buffer amplifier 160 has the first output terminal O/P and second output terminal.The positive input terminal of buffer amplifier 160 has offset voltage (offsetvoltage) 155, and this anode is coupled to flow-dividing control end CS, to receive bus-bar signal V
BThe negative terminal of buffer amplifier 160 is coupled to its first output terminal O/P, and this first output terminal O/P is more via input resistance R
2Connect and draw high voltage V
MSecond output terminal of buffer amplifier 160 is according to drawing high voltage V
M, bus-bar signal V
B, offset voltage 155 and input resistance R
2And produce the 3rd current signal I
X
Wherein, k
1Be the current mirror ratio of electric crystal 168 and electric crystal 169, V
OffsetIt is the magnitude of voltage of offset voltage 155.
Seeing also shown in Figure 7ly, is the preferred embodiment that adjustment unit 200 is described according to the present invention.Adjustment unit 200 comprises adjustment current mirror, the adjustment resistance R of being made up of electric crystal 201 and 202
3With unity gain buffer 207.The first current signal I
1With the 3rd current signal I
XBe connected to electric crystal 201.Electric crystal 202 is according to the first current signal I
1With the 3rd current signal I
XCurrent signal is adjusted in output.Adjust resistance R
3Be connected to electric crystal 202, in order to receive this adjustment current signal and to produce reference signal V
RThe input end of unity gain buffer 207 receives reference voltage V
R1, its output terminal is coupled to the adjustment resistance R
3Reference signal V
RCan represent as equation (2).
V
R＝V
R1+[k
2×(I
X-I
1)]×R
3 ---------------?(2)
Wherein, k
2It is the current mirror ratio of electric crystal 201 and electric crystal 202.
Seeing also shown in Figure 8ly, is the preferred embodiment that output unit 250 is described according to the present invention.Output unit 250 comprises output resistance R
4, the gate of resistance 254, electric crystal 253 and drain join the diode formed, unity gain amplifier 257 with by electric crystal 251 and 252 current mirror outputs of being formed.Unity gain amplifier 257 has the output kenel of the opener utmost point (or opening drain), and its output terminal connects flow-dividing control end CS, in order to produce bus-bar signal V
BThe negative terminal of unity gain amplifier 257 is connected to its output terminal, and its anode is via output resistance R
4Draw high voltage V and be coupled to
M Electric crystal 252 is coupled to the anode of unity gain amplifier 257 with resistance 254 via electric crystal 253.The second current signal I of electric crystal 251 received current generation units 100 outputs
2According to the second current signal I
2And at output resistance R
4Last generation pressure drop.Therefore, according to the second current signal I
2, output resistance R
4With draw high voltage V
MAnd generation bus-bar signal V
BBus-bar signal V
BCan represent as equation (3).
V
B＝V
M-k
3×I
2×R
4 ----------------------(3)
Wherein, k
3It is the current mirror ratio of electric crystal 251 and electric crystal 252.
Please refer to equation (3), we can find bus-bar signal V
BBe output current I according to voltage stabilizer
0And do modulation.Because the output terminal of unity gain amplifier 257 is the opener utmost point (or opening drain) kenels, so unity gain amplifier 257 can only drag down bus-bar signal V
B, so flow-dividing control end CS can be in parallel, shown in the 3rd figure.There is not under the situation of load bus-bar signal V
BCeiling voltage be by drawing high voltage V
MRegulate.Wherein, the voltage stabilizer arbitration bus-bar signal V that has maximum output current
BArbitration bus-bar signal V
BVoltage stabilizer be defined as main voltage stabilizer.Other voltage stabilizers (being auxiliary stabilizer) will be followed the trail of bus-bar signal V
BTo share output current.Auxiliary stabilizer produces the 3rd current signal I according to equation (1)
XOffset voltage V
OffsetDetermined the critical value of beginning.As bus-bar signal V
BPressure drop greater than offset voltage V
OffsetThe time, auxiliary stabilizer will begin to produce the 3rd current signal I
X, and share output current jointly with main voltage stabilizer.Lower bus-bar signal V
BThe 3rd higher current signal I will be produced
XAt last, auxiliary stabilizer will reach the purpose of sharing output current by increasing its output voltage.Output voltage V
0Be by reference signal V
RDetermine, can represent as equation (4).
Wherein, R
31With R
32It is respectively the resistance value of resistance 31 and 32.
Equation (2) shows by the 3rd current signal I
XWith the first current signal I
1And adjustment reference signal V
R, the first current signal I wherein
1The output current I that represents voltage stabilizer relatively
0As the 3rd current signal I
XGreater than the first current signal I
1, reference signal V then
RIncrease.Reference signal V
RIncrease will cause output current I
0Increase.At last, increasing its output current I
0After, reference signal V
RRecruitment will be restrained.See through flow-dividing control end CS and transmit bus-bar signal V mutually
B, the recruitment of auxiliary stabilizer output current will reduce the output current of main voltage stabilizer, therefore reach the purpose of shunting.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (22)
1. part flow arrangement is characterized in that it comprises:
One input end;
One output terminal;
One flow-dividing control end is in order to provide the flow-dividing control interface;
One serial connection electric crystal has one first end, one second end and one the 3rd end, and this first end is coupled to this input end, and this second end is coupled to this output terminal, in order to receiving the input voltage of this input end, and provides an output voltage and to output current to this output terminal;
The certain voltage generation unit is in order to produce a reference voltage;
One feedback control circuit, be coupled to this output terminal and be connected in series electric crystal with this, in order to detecting this output current and to export a current detecting signal according to this, and according to a reference signal adjustment and export three end of a controlling signal to this serial connection electric crystal, to control the output of this part flow arrangement; And
One flow-dividing control unit, be coupled to this flow-dividing control end and this feedback control circuit, in order to according to this current detecting signal and this reference voltage and produce a bus-bar signal, and produce this reference signal according to this reference voltage, this bus-bar signal and this current detecting signal.
2. part flow arrangement according to claim 1 is characterized in that wherein said feedback control circuit comprises:
One current detecting unit is coupled to this serial connection electric crystal, in order to detect this output current and to produce this corresponding current detecting signal according to this;
One voltage divider is coupled to this output terminal, in order to this output voltage carried out dividing potential drop and to produce a feedback voltage according to this; And
One amplifier, its anode are coupled to this voltage divider to receive this feedback voltage, and its negative terminal receives this reference signal, and its output terminal is exported this controlling signal, to control this serial connection electric crystal.
3. part flow arrangement according to claim 1 is characterized in that wherein said flow-dividing control unit comprises:
One draws high voltage cell, draws high voltage in order to produce one according to this reference voltage;
One draws high resistance, is coupled to this and draws high between voltage cell and this flow-dividing control end;
One current generating unit is in order to produce corresponding one first current signal and one second current signal according to this current detecting signal;
One input block is coupled to this flow-dividing control end, in order to draw high voltage according to this and this bus-bar signal produces one the 3rd current signal;
One output unit is coupled to this flow-dividing control end, produces this bus-bar signal in order to draw high voltage according to this second current signal and this; And
One adjustment unit is coupled to this input block and this current generating unit, in order to produce and to adjust this reference signal according to this reference voltage, this first current signal and the 3rd current signal.
4. part flow arrangement according to claim 3 is characterized in that wherein said input block comprises:
One input resistance, its first end connects this and draws high voltage; And
One buffer amplifier, its anode has an offset voltage, and be coupled to this flow-dividing control end to receive this bus-bar signal, the negative terminal of this buffer amplifier is coupled to second end of its first output terminal and this input resistance, and second output terminal of this buffer amplifier draws high voltage, this bus-bar signal, this offset voltage and this input resistance according to this and produces the 3rd current signal.
5. part flow arrangement according to claim 3 is characterized in that wherein said output unit comprises:
One output resistance, its first end connects this and draws high voltage;
One unity gain amplifier, its anode is coupled to second end of this output resistance, its output terminal connects the negative terminal of this flow-dividing control end and this unity gain amplifier, and in order to produce this bus-bar signal, wherein the output terminal of this unity gain amplifier is the kenel of the opener utmost point; And
One current mirror output is coupled to the anode of this unity gain amplifier, in order to produce pressure drop according to this second current signal on this output resistance;
Wherein this bus-bar signal is to draw high voltage according to this second current signal, this output resistance and this to produce.
6. part flow arrangement according to claim 3 is characterized in that wherein said adjustment unit comprises:
One adjusts current mirror, adjusts current signal in order to produce one according to this first current signal and the 3rd current signal;
One adjusts resistance, in order to receiving this adjustment current signal, and produces this reference signal; And
One unity gain buffer, its input end receives this reference voltage, and its output terminal is coupled to this adjustment resistance.
7. part flow arrangement according to claim 1 is characterized in that it is a voltage stabilizer.
8. part flow arrangement is characterized in that it comprises:
One input end;
One output terminal;
One flow-dividing control end is in order to provide the flow-dividing control interface;
One serial connection electric crystal has one first end, one second end and one the 3rd end, and this first end is coupled to this input end, and this second end is coupled to this output terminal, in order to receiving the input voltage of this input end, and provides an output voltage and to output current to this output terminal;
One feedback control circuit is coupled to this output terminal, in order to according to a reference signal adjustment and export three end of a controlling signal to this serial connection electric crystal, to control the output of this part flow arrangement; And
One flow-dividing control unit is coupled to this flow-dividing control end and this feedback control circuit, in order to produce this reference signal to adjust this controlling signal.
9. part flow arrangement according to claim 8 is characterized in that more comprising a current detecting unit, is coupled to this serial connection electric crystal, in order to detect this output current and to produce corresponding current detecting signal according to this.
10. part flow arrangement according to claim 8 is characterized in that wherein said flow-dividing control unit is coupled to this flow-dividing control end, in order to produce a bus-bar signal according to the size of this output current; This flow-dividing control unit more produces this reference signal according to a reference voltage, this bus-bar signal and this output current.
11. part flow arrangement according to claim 8 is characterized in that wherein said feedback control circuit comprises:
One voltage divider is coupled to this output terminal, in order to this output voltage carried out dividing potential drop and to produce a feedback voltage according to this; And
One amplifier, its anode are coupled to this voltage divider to receive this feedback voltage, and its negative terminal receives this reference signal, and its output terminal is exported this controlling signal, to control this serial connection electric crystal.
12. part flow arrangement according to claim 8 is characterized in that wherein said flow-dividing control unit comprises:
One draws high voltage cell, draws high voltage in order to produce one according to this reference voltage;
One draws high resistance, is coupled to this and draws high between voltage cell and this flow-dividing control end;
One current generating unit is in order to produce corresponding one first current signal and one second current signal according to this current detecting signal;
One input block is coupled to this flow-dividing control end, in order to draw high voltage according to this and this bus-bar signal produces one the 3rd current signal;
One output unit is coupled to this flow-dividing control end, produces this bus-bar signal in order to draw high voltage according to this second current signal and this; And
One adjustment unit is coupled to this input block and this current generating unit, in order to produce and to adjust this reference signal according to this reference voltage, this first current signal and the 3rd current signal.
13. part flow arrangement according to claim 12 is characterized in that wherein said input block comprises:
One input resistance, its first end connects this and draws high voltage; And
One buffer amplifier, its anode has an offset voltage, and be coupled to this flow-dividing control end to receive this bus-bar signal, the negative terminal of this buffer amplifier is coupled to second end of its first output terminal and this input resistance, and second output terminal of this buffer amplifier draws high voltage, this bus-bar signal, this offset voltage and this input resistance according to this and produces the 3rd current signal.
14. part flow arrangement according to claim 12 is characterized in that wherein said output unit comprises:
One output resistance, its first end is connected to this and draws high voltage;
One unity gain amplifier, its anode is coupled to second end of this output resistance, its output terminal is connected to the negative terminal of this flow-dividing control end and this unity gain amplifier, and in order to produce this bus-bar signal, wherein the output terminal of this unity gain amplifier is the kenel of the opener utmost point; And
One current mirror output is coupled to the anode of this unity gain amplifier, in order to produce pressure drop according to this second current signal on this output resistance;
Wherein this bus-bar signal is to draw high voltage according to this second current signal, this output resistance and this to produce.
15. part flow arrangement according to claim 12 is characterized in that wherein said adjustment unit comprises:
One adjusts current mirror, adjusts current signal in order to produce one according to this first current signal and the 3rd current signal;
One adjusts resistance, in order to receiving this adjustment current signal, and produces this reference signal; And
One unity gain buffer, its input end receives this reference voltage, and its output terminal is coupled to this adjustment resistance.
16. a part flow arrangement is characterized in that it comprises:
One input end;
One output terminal;
One flow-dividing control end;
One output unit outputs current to this output terminal in order to an output voltage and to be provided;
One feedback control circuit, be coupled to this output terminal and this output unit, in order to detecting this output current and to export a current detecting signal according to this, and according to a reference signal adjustment and export a controlling signal to this output unit, to control the output of this part flow arrangement; And
One flow-dividing control unit, be coupled to this flow-dividing control end and this feedback control circuit, in order to according to this current detecting signal and a reference voltage and produce a bus-bar signal, and produce this reference signal according to this reference voltage, this bus-bar signal and this current detecting signal.
17. part flow arrangement according to claim 16 is characterized in that wherein said feedback control circuit comprises:
One current detecting unit is coupled to this output unit, in order to detect this output current and to produce this current detecting signal according to this;
One voltage divider is coupled to this output terminal, in order to this output voltage carried out dividing potential drop and to produce a feedback voltage according to this; And
One amplifier, its anode are coupled to this voltage divider to receive this feedback voltage, and its negative terminal receives this reference signal, and its output terminal is exported this controlling signal, to control this output unit.
18. part flow arrangement according to claim 16 is characterized in that wherein said flow-dividing control unit comprises:
One draws high voltage cell, draws high voltage in order to produce one according to this reference voltage;
One draws high resistance, is coupled to this and draws high between voltage cell and this flow-dividing control end;
One input block is coupled to this flow-dividing control end, in order to draw high voltage according to this and this bus-bar signal produces a bias voltage signal;
One output unit is coupled to this flow-dividing control end, produces this bus-bar signal in order to draw high voltage according to this current detecting signal and this; And
One adjustment unit is in order to produce and to adjust this reference signal according to this reference voltage, this current detecting signal and this bias voltage signal.
19. a shunt method in order to automatic adjustment most part flow arrangement outputs separately parallel with one another, provides an output always with a minute stream mechanism, it is characterized in that it may further comprise the steps:
The flow-dividing control end of each those part flow arrangement is coupled mutually;
Make each those part flow arrangement transmit a bus-bar signal according to its output state mutually via this flow-dividing control end separately; And
Make each those part flow arrangement respectively according to this bus-bar signal of its output state and this flow-dividing control end, its output of each self-adjusting provides this total output with a minute stream mechanism.
20. shunt method according to claim 19 is characterized in that wherein said each those part flow arrangement are all voltage stabilizer.
21. shunt method according to claim 19 is characterized in that the step that makes wherein said each those part flow arrangement transmit this bus-bar signal according to its output state mutually via this flow-dividing control end separately comprises:
One reference voltage is provided;
Make each those part flow arrangement detect an output current of its output separately; And
Make each those part flow arrangement produce this bus-bar signal according to the result who detects this output current and this reference voltage separately.
22. shunt method according to claim 19 is characterized in that making wherein said each those part flow arrangement respectively according to its output state and this bus-bar signal and the step of each its output of self-adjusting comprises:
One reference voltage is provided;
Make each those part flow arrangement separately according to its output state, this reference voltage and this bus-bar signal, produce a reference signal separately;
Make each those part flow arrangement separately according to its output state and this corresponding reference signal, each self-adjusting is also exported a controlling signal; And
Make each those part flow arrangement separately according to this controlling signal of correspondence, each self-adjusting is also exported an output voltage and an output current, and wherein this output voltage and this output current are the output of this part flow arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100537239A CN100421044C (en) | 2005-03-10 | 2005-03-10 | Shunting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100537239A CN100421044C (en) | 2005-03-10 | 2005-03-10 | Shunting device and method |
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| Publication Number | Publication Date |
|---|---|
| CN1831696A CN1831696A (en) | 2006-09-13 |
| CN100421044C true CN100421044C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100537239A Expired - Fee Related CN100421044C (en) | 2005-03-10 | 2005-03-10 | Shunting device and method |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6341427B2 (en) * | 2015-01-21 | 2018-06-13 | 株式会社オートネットワーク技術研究所 | Circuit structure and electrical junction box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157269A (en) * | 1991-01-31 | 1992-10-20 | Unitrode Corporation | Load current sharing circuit |
| CN1150351A (en) * | 1995-09-18 | 1997-05-21 | 汤姆森消费电子有限公司 | Off-line phase control low-power dissipation power supply |
| US6009000A (en) * | 1999-02-05 | 1999-12-28 | The Aerospace Corporation | Shared-bus current sharing parallel connected current-mode DC to DC converters |
| US6515460B1 (en) * | 2001-09-10 | 2003-02-04 | National Semiconductor Corporation | Multiphase switching regulator control architecture for low on time systems that enforces current sharing |
| US20030117816A1 (en) * | 2001-10-23 | 2003-06-26 | Delta Electronics, Inc. | Parallel DC-to-AC power inverter system with current sharing technique and method thereof |
-
2005
- 2005-03-10 CN CNB2005100537239A patent/CN100421044C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157269A (en) * | 1991-01-31 | 1992-10-20 | Unitrode Corporation | Load current sharing circuit |
| CN1150351A (en) * | 1995-09-18 | 1997-05-21 | 汤姆森消费电子有限公司 | Off-line phase control low-power dissipation power supply |
| US6009000A (en) * | 1999-02-05 | 1999-12-28 | The Aerospace Corporation | Shared-bus current sharing parallel connected current-mode DC to DC converters |
| US6515460B1 (en) * | 2001-09-10 | 2003-02-04 | National Semiconductor Corporation | Multiphase switching regulator control architecture for low on time systems that enforces current sharing |
| US20030117816A1 (en) * | 2001-10-23 | 2003-06-26 | Delta Electronics, Inc. | Parallel DC-to-AC power inverter system with current sharing technique and method thereof |
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|---|---|
| CN1831696A (en) | 2006-09-13 |
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