CN104201882B - Non-isolated voltage-stabilization current-sharing circuit and power supply system - Google Patents
Non-isolated voltage-stabilization current-sharing circuit and power supply system Download PDFInfo
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- CN104201882B CN104201882B CN201410415311.4A CN201410415311A CN104201882B CN 104201882 B CN104201882 B CN 104201882B CN 201410415311 A CN201410415311 A CN 201410415311A CN 104201882 B CN104201882 B CN 104201882B
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- 238000011105 stabilization Methods 0.000 title abstract 7
- 238000005070 sampling Methods 0.000 claims abstract description 82
- 230000000087 stabilizing effect Effects 0.000 claims description 388
- 239000004065 semiconductor Substances 0.000 claims description 66
- 238000004804 winding Methods 0.000 claims description 45
- 239000003990 capacitor Substances 0.000 claims description 31
- 238000004146 energy storage Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 19
- 230000036772 blood pressure Effects 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 230000009466 transformation Effects 0.000 claims description 8
- 230000002459 sustained effect Effects 0.000 description 11
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- 238000004891 communication Methods 0.000 description 6
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention belongs to the technical field of power supply and discloses a non-isolated voltage-stabilization current-sharing circuit and a power supply system. In the non-isolated voltage-stabilization current-sharing circuit, direct current output by a first inductor and loop current output by load are respectively output to the load and a second inductor under subsequent flow through a first voltage-stabilization current-sharing unit, so that the value of the direct current output by the second inductor is equal to that of the direct current accessed into the first inductor, a voltage sampling unit and a current sampling unit are respectively used to sample voltage output by the first voltage-stabilization current-sharing unit and loop current output by the load and to feed voltage sampling signals and current sampling signals to a first controller, the first voltage-stabilization current-sharing unit is driven to the output voltage and current of the non-isolated voltage-stabilization current-sharing circuit by the first controller, so that steady output voltage and current can be maintained without limit of input voltage difference and the power supply efficiency is also improved.
Description
Technical field
The invention belongs to power supply technique field, more particularly to a kind of non-isolated voltage stabilizing flow equalizing circuit and electric power system.
Background technology
At present, with the upgrading of communication equipment, its power demand is increasing, so the input current of communication equipment is also needed
Correspondingly to increase.In order to meet the high current demand of communication equipment, multiple-way supply circuit is typically with communications equipment room simultaneously
Connection using forming electric resources pond, and the electric current in multiple-way supply circuit is combined conflux process after export to communication and set
It is standby, to realize flexible distribution for different communication equipments.And when multiple-way supply lines in parallel is used, what prior art was provided
A solution be the electric current in multiple-way supply circuit be combined conflux process when, by each supply line
One impedance adjustment circuit of series connection is adjusted process to electric current, and a variable resistance, its basis are included in the impedance adjustment circuit
Electric current in supply line is adjusted to the variable-resistance resistance, to reach the purpose of balanced feeding line impedance, so as to
The electric current of Shi Ge supply lines preserves the stable equilibrium；The impedance adjustment circuit when the input pressure reduction of supply line is big, damage by heating
Consumption can also become big, and temperature accordingly can be raised, and part electric energy can be converted to heat energy, and power supplying efficiency is relatively low.
The content of the invention
It is an object of the invention to provide a kind of non-isolated voltage stabilizing flow equalizing circuit, it is intended to solve prior art to supply lines
Realize the low problem of power supplying efficiency existing during current balance type in road.
The present invention is achieved in that a kind of non-isolated voltage stabilizing flow equalizing circuit, including the first controller, and the non-isolated is steady
Pressure flow equalizing circuit also includes：
Unit, voltage sampling unit and current sampling unit are flowed in first inductance, the second inductance, the first voltage stabilizing；
The first end of first inductance accesses the first unidirectional current, and the first end of second inductance exports the second direct current
Second end of electricity, the second end of first inductance and second inductance connects that unit is flowed in first voltage stabilizing respectively
One input and the second input, first voltage stabilizing flow the outfan of unit to load output unidirectional current, and the voltage is adopted
The input and outfan of sample unit connects the outfan and first controller that unit is flowed in first voltage stabilizing, institute respectively
The first sampling end for stating current sampling unit receives the loop current of load output, the second sampling end of the current sampling unit
Connect first voltage stabilizing respectively with outfan and flow the loop end of unit and first controller, first controller is also
The unidirectional current regulation and control end for flowing unit with first voltage stabilizing is connected；
First inductance is exported after carrying out energy storage to first unidirectional current to first voltage stabilizing and flows unit, described
First voltage stabilizing is flowed unit and the unidirectional current afterflow exported by first inductance is exported to the load, and the load is exported
Loop current flow unit afterflow through first voltage stabilizing and export to second inductance, second inductance is to described time
Road electric current exports second unidirectional current after carrying out energy storage, the second galvanic current value is galvanic equal to described first
Current value；The voltage sampling unit is sampled to the output voltage of the non-isolated voltage stabilizing flow equalizing circuit, and feedback voltage
To first controller, the current sampling unit carries out current sample to the loop current to sampled signal, and feeds back electricity
Stream sampled signal is believed to first controller, first controller according to the voltage sampling signal and the current sample
Number output the first control signal flow unit to first voltage stabilizing；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit it is big
When default stream magnitude of voltage and/or the loop current are more than default stream current value, unit root is flowed in first voltage stabilizing
Reduce the output voltage and/or output current of the non-isolated voltage stabilizing flow equalizing circuit according to first control signal；When described non-
The output voltage of isolation voltage stabilizing flow equalizing circuit is default less than described less than the default stream magnitude of voltage and/or the loop current
When flowing current value, first voltage stabilizing is flowed unit and flows electricity according to first control signal increase non-isolated voltage stabilizing
The output voltage and/or output current on road.
Present invention also offers a kind of electric power system, which includes multiple power circuits, shunt current circuit and multiple electric currents
Flow equalizing circuit, the shunt current circuit is shunted to the output current of the power circuit and exported to the electric current to flow
Circuit, any two-way electric current that the electric current combining module in the electric current flow equalizing circuit is exported to the shunt current circuit enter
Row interflow exports the first unidirectional current after processing；The electric power system also includes above-mentioned non-isolated voltage stabilizing flow equalizing circuit, described non-
The first inductance in isolation voltage stabilizing flow equalizing circuit accesses first unidirectional current from the electric current combining module.
The present invention by using include the first inductance, the second inductance, the first voltage stabilizing flow unit, voltage sampling unit and
The non-isolated voltage stabilizing flow equalizing circuit of current sampling unit；Unidirectional current and the load that the first inductance is exported by unit is flowed in first voltage stabilizing
The loop current of output is distinguished afterflow and is exported to load and the second inductance, by the symmetrical energy storage effect of the first inductance and the second inductance
Ensure that the second galvanic current value of the second inductance output is equal to the first galvanic current value that the first inductance is accessed, voltage
Sampling unit is sampled to the output voltage that unit is flowed in the first voltage stabilizing, and feedback voltage sampled signal is to the first controller,
Meanwhile, current sampling unit carries out current sample, and feedback current sampled signal to the first controller to loop current, then by
One controller exports the first control signal to drive the first voltage stabilizing according to the voltage sampling signal and the current sampling signal
Flow unit to be adjusted the output voltage and output current of non-isolated voltage stabilizing flow equalizing circuit, to keep stable output voltage
And output current.As the first controller can drive the first voltage stabilizing with reference to the voltage sampling signal fed back by voltage sampling unit
Flow unit to be adjusted the output voltage of non-isolated voltage stabilizing flow equalizing circuit, even if so in the case where input pressure reduction changes
Stable output voltage can still be kept such that it is able to stable output electricity is kept in the case where not limiting by input pressure reduction
Pressure；And as non-isolated voltage stabilizing flow equalizing circuit possesses stable output voltage, and do not exist because input pressure reduction becomes big and occur sending out
The device that thermal losses accordingly increases, so whole circuit is in the course of the work because idle spent by spread of voltage and thermal losses
Power is less, therefore also improves power supplying efficiency.
Description of the drawings
Fig. 1 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention one is provided；
Fig. 2 is the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention one is provided；
Fig. 3 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention two is provided；
Fig. 4 is the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention two is provided；
Fig. 5 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention three is provided；
Fig. 6 is the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention three is provided；
Fig. 7 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention four is provided；
Fig. 8 is the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention four is provided；
Fig. 9 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit including pressure unit that the embodiment of the present invention five is provided
Figure；
Figure 10 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit including pressure unit that the embodiment of the present invention five is provided
Figure；
Figure 11 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit including pressure unit that the embodiment of the present invention five is provided
Figure；
Figure 12 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit including pressure unit that the embodiment of the present invention five is provided
Figure；
Figure 13 be the embodiment of the present invention five provide non-isolated voltage stabilizing flow equalizing circuit in pressure unit cut-away view；
Figure 14 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention six is provided；
Figure 15 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention six is provided；
Figure 16 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention six is provided；
Figure 17 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention six is provided；
Figure 18 be the embodiment of the present invention six provide non-isolated voltage stabilizing flow equalizing circuit in pressure unit cut-away view；
Figure 19 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 20 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 21 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 22 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 23 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 24 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 25 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 26 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 27 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 28 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 29 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided；
Figure 30 is the structural representation of the non-isolated voltage stabilizing flow equalizing circuit that the embodiment of the present invention seven is provided.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Non-isolated voltage stabilizing flow equalizing circuit provided in an embodiment of the present invention is described in detail below in conjunction with specific embodiment：
Embodiment one：
Fig. 1 shows the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided, and for convenience of description, illustrate only and this reality
The related part of example is applied, details are as follows：
Non-isolated voltage stabilizing flow equalizing circuit includes the first controller 100, and the first controller 100 can be that single-chip microcomputer or pulsewidth are adjusted
Device processed.
Non-isolated voltage stabilizing flow equalizing circuit also flows unit 200, electricity including the first inductance L1, the second inductance L2, the first voltage stabilizing
Pressure sampling unit 300 and current sampling unit 400.
The first end of the first inductance L1 accesses the first unidirectional current Vin+, and the first end of the second inductance L2 exports the second unidirectional current
Second end of Vin-, second end of the first inductance L1 and the second inductance L2 connects first that unit 200 is flowed in the first voltage stabilizing respectively
Input and the second input, the first voltage stabilizing flow the outfan of unit 200 and export unidirectional current, voltage sample list to load 500
The input and outfan of unit 300 connects the outfan and the first controller 100 that unit 200 is flowed in the first voltage stabilizing, electric current respectively
First sampling end of sampling unit 400 receives the loop current of 500 output of load, the second sampling end of current sampling unit 400
Connect loop end and the first controller 100 that unit 200 is flowed in the first voltage stabilizing respectively with outfan, the first controller 100 also with
The unidirectional current regulation and control end connection of unit 200 is flowed in first voltage stabilizing.
First inductance L1 is exported to the first voltage stabilizing after carrying out energy storage to the first unidirectional current Vin+ and is flowed unit 200, and first is steady
Pressure flows unit 200 and the unidirectional current afterflow exported by first inductance L1 is exported to load 500, load 500 loop for being exported
Electric current flows 200 afterflow of unit through the first voltage stabilizing and exports to the second inductance L2, and the second inductance L2 enters to above-mentioned loop current
The second unidirectional current Vin- is exported after row energy storage, the current value of the second unidirectional current Vin- is equal to the current value of the first unidirectional current Vin+；
Output voltage (export to the galvanic voltage of load 500) of the voltage sampling unit 300 to non-isolated voltage stabilizing flow equalizing circuit
Sampled, and feedback voltage sampled signal VSTo the first controller 100, current sampling unit 400 is returned to loading 500 outputs
Road electric current carries out current sample, and feedback current sampled signal ISTo the first controller 100, the first controller 100 is according to above-mentioned
Voltage sampling signal and current sampling signal export the first control signal Ctrl1Unit 200 is flowed to the first voltage stabilizing；When it is non-every
Output voltage from voltage stabilizing flow equalizing circuit flows electric current more than default more than default magnitude of voltage and/or the above-mentioned loop current of flowing
During value, the first voltage stabilizing flows unit 200 according to the first control signal Ctrl1Reduce the output voltage of non-isolated voltage stabilizing flow equalizing circuit
And/or output current；When the output voltage of non-isolated voltage stabilizing flow equalizing circuit flows magnitude of voltage and/or above-mentioned loop less than default
When electric current is less than default stream current value, the first voltage stabilizing flows unit 200 according to the first control signal Ctrl1Increase non-isolated is steady
The output voltage and/or output current of pressure flow equalizing circuit.
From the foregoing it can be that the first end of the first end of the first inductance L1 and the second inductance L2 is equivalent to supply line
Anode and negative terminal, anode access the first unidirectional current Vin+, and negative terminal exports the second unidirectional current Vin-.It is above-mentioned default to flow magnitude of voltage
Refer respectively to the default current value that flows：Supply line is powered and reality is needed in above-mentioned non-isolated voltage stabilizing flow equalizing circuit
When existing voltage stabilizing and current balance type, the output voltage values and output current value of non-isolated voltage stabilizing flow equalizing circuit.
In addition, in above-mentioned non-isolated voltage stabilizing flow equalizing circuit, due to being detected to output voltage and according to electricity
Pressure sampled signal is adjusted to output voltage, so it is unstable output voltage occur because of the change of input pressure reduction
Situation, so relative to the prior art mentioned in background technology, the normal work of above-mentioned non-isolated voltage stabilizing flow equalizing circuit is
Do not limited by input pressure reduction.
It is for power supplying efficiency, actually related to " stablizing for output voltage " and " thermal losses that device occurs "
, power supplying efficiency is low to be because that the reactive power made when powering is too high and causes, and output voltage can be born more than circuit
During the rated voltage of lotus, reactive power will be increased, the thermal losses increase of the device in circuit can also increase reactive power.And
In above-mentioned non-isolated voltage stabilizing flow equalizing circuit, real-time adjustment output voltage can make output voltage keep stable, and then reduce power supply
When reactive power, and the device employed in above-mentioned non-isolated voltage stabilizing flow equalizing circuit will not occur because input pressure reduction becomes big
Heating loss increases, and reactive power during power supply can also reduce, it is possible to reaching the effect for improving power supplying efficiency.
Fig. 2 shows the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided, for convenience of description,
Part related to the present embodiment is illustrate only, details are as follows：
Unit 200 is flowed in first voltage stabilizing includes the first isolating transformer T1, first switch pipe 201, the first fly-wheel diode
D1 and the second sustained diode 2.
The first end 1 of the armature winding of the first isolating transformer T1 is the unidirectional current regulation and control that unit 200 is flowed in the first voltage stabilizing
End, the second end 2 of the armature winding of the first isolating transformer T1 are connected to ground altogether with the first controller 100, and first isolates transformation
The first end 3 of the secondary windings of device T1 and the second end 4 connect the controlled end and input of first switch pipe 201 respectively, and first opens
The outfan and the common contact of the anode of the first sustained diode 1 for closing pipe 201 is that the first defeated of unit 200 is flowed in the first voltage stabilizing
The common contact for entering the negative electrode of end, the input of first switch pipe 201 and the second sustained diode 2 flows unit for the first voltage stabilizing
The anode of 200 the second input, the negative electrode of the first sustained diode 1 and the second sustained diode 2 is respectively the first voltage stabilizing
Outfan and the loop end of unit 200 are flowed.
Wherein, first switch pipe 201 can be metal-oxide-semiconductor (including NMOS tube and PMOS), IGBT (Isolated Gate
Bipolar Transistor, insulated gate bipolar IGCT) or other possess the semiconductor device of switching characteristic.Especially
Ground, when first switch pipe 201 is metal-oxide-semiconductor or during IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively first switch
The controlled end of pipe 201, input and outfan；In the present embodiment, as shown in Fig. 2 first switch pipe 201 is specially PMOS
Q1。
Voltage sampling unit 300 includes first resistor R1 and second resistance R2, and the first end of first resistor R1 is adopted for voltage
The input of sample unit 300, the second end of first resistor R1 are voltage sample list with the common contact of the first end of second resistance R2
The outfan of unit 300, the second end ground connection of second resistance R2.
Current sampling unit 400 includes 3rd resistor R3 and difference amplifier U1, the first end and difference of 3rd resistor R3
First sampling end of the common contact of the first input end of amplifier U1 for current sampling unit 400, the second end of 3rd resistor R3
With the common contact of second input of difference amplifier U1 for current sampling unit 400 the second sampling end, difference amplifier U1
Outfan for current sampling unit 400 outfan, the positive power source terminal and negative power end of difference amplifier U1 connect directly respectively
Stream power supply VCC and ground.
The non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 2 is described further below in conjunction with operation principle：
First inductance L1 exports unidirectional current after carrying out energy storage to the first unidirectional current Vin+, and the unidirectional current is through the first afterflow two
Export after the afterflow of pole pipe D1 to load 500, the loop current exported by load 500 is defeated after 2 afterflow of the second sustained diode
Go out to the second inductance L2, the second inductance L2 exports the second unidirectional current Vin- after carrying out energy storage to loop current, due to the first inductance
The symmetrical energy storage effect of L1 and the second inductance L2, so that the current value of the first unidirectional current Vin+ is equal to the second unidirectional current Vin-'s
Current value.At the same time, first resistor R1 and second resistance R2 carry out voltage sample to output to the unidirectional current of load, and by electricity
Pressure sampled signal feeds back to the first controller 100, and 3rd resistor R3 is sampled to the loop current for loading, and by differential amplification
Device U1 exports corresponding current sampling signal to the first control after carrying out differential amplification to the sampled voltage at 3rd resistor R3 two ends
Device 100, then the first controller 100 is according to voltage sampling signal VSWith current sampling signal ISExport the first control signal Ctrl1Extremely
First isolating transformer T1, the first control signal Ctrl1To PMOS after the first isolating transformer T1 carries out isolation processing
The on off operating mode of Q1 is controlled, PMOS Q1 according to the first control signal Ctrl1Corresponding dutycycle realizes make-break operation,
And then realize adjustment to output voltage and output current, to ensure stablizing for output voltage and output current.Specifically, when non-
The output voltage of isolation voltage stabilizing flow equalizing circuit flows electricity more than default more than default magnitude of voltage and/or the above-mentioned loop current of flowing
During flow valuve, with the first control signal Ctrl1Corresponding dutycycle can reduce according to a certain change in duty cycle value, then PMOS Q1 exists
The output voltage and/or output current of non-isolated voltage stabilizing flow equalizing circuit can be made during realizing corresponding make-break operation also to obtain phase
The reduction answered；When the output voltage of non-isolated voltage stabilizing flow equalizing circuit flows magnitude of voltage and/or above-mentioned loop current less than default
During less than default stream current value, with the first control signal Ctrl1Corresponding dutycycle can increase according to a certain change in duty cycle value
Greatly, then PMOS Q1 can make during corresponding make-break operation is realized non-isolated voltage stabilizing flow equalizing circuit output voltage and/or
Output current is also increased accordingly.
In the present embodiment, non-isolated voltage stabilizing flow equalizing circuit includes that the first inductance L1, the second inductance L2, the first voltage stabilizing are flowed
Unit 200, voltage sampling unit 300 and current sampling unit 400, its circuit structure is simple, small volume, low cost and power
Density is high.
In addition, the duty cycle of switching of first switch pipe 201 is controlled by the first controller 100, to flow to non-isolated voltage stabilizing
The output voltage and output current of circuit is adjusted such that it is able to kept stable in the case where not limiting by input pressure reduction
Output voltage and output current, and further increase power supplying efficiency.
Embodiment two：
On the basis of the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 1, electricity is flowed in the non-isolated voltage stabilizing that the present embodiment is provided
Road is as shown in figure 3, which further includes that unit 600 is flowed in the 3rd inductance L3, the 4th inductance L4 and the second voltage stabilizing.
The first end of the first end of the 3rd inductance L3 and the 4th inductance L4 connects the first end of the first inductance L1 and respectively
The first end of two inductance L2, second end of the 3rd inductance L3 and second end of the 4th inductance L4 connect the second voltage stabilizing respectively and flow list
The first input end and the second input of unit 600, the second voltage stabilizing flow the unidirectional current regulation and control end of unit 600 and the first controller
100 connections, the outfan of unit 600 is flowed in the second voltage stabilizing and loop end connects the output that unit 200 is flowed in the first voltage stabilizing respectively
End and loop end.
Under the control of the first controller, the first voltage stabilizing is flowed unit 200 and flows unit 600 with the second voltage stabilizing and replaces work
Make；3rd inductance L3 carries out the 3rd voltage stabilizings of unidirectional current Vin+ ' to second of output after energy storage and flows unit to the first unidirectional current Vin+
600, when unit 600 is flowed in the second voltage stabilizing to work, the second voltage stabilizing is flowed unit 600 and exports the 3rd unidirectional current Vin+ ' afterflows
To load 500, the loop current exported by load 500 flows 600 afterflow of unit through the second voltage stabilizing and exports to the 4th inductance L4,
4th inductance L4 carries out the 4th unidirectional current Vin- ', the electric current of the 4th unidirectional current Vin- ' are exported after energy storage to above-mentioned loop current
Current value of the value equal to the 3rd unidirectional current Vin+ '；The voltage sample that first controller 100 is exported according to voltage sampling unit 300
The current sampling signal of signal and the output of current sampling unit 400 exports first control signal Ctrl respectively1With the second control
Signal Ctrl processed2Unit 200 is flowed to the first voltage stabilizing and unit 600 is flowed in the second voltage stabilizing；When non-isolated voltage stabilizing flow equalizing circuit
When output voltage is more than presetting stream magnitude of voltage and/or loading 500 loop currents for being exported more than default stream current value, the
Unit 200 is flowed in one voltage stabilizing and the second voltage stabilizing flows unit 600 respectively according to the first control signal Ctrl1With the second control signal
Ctrl2Alternation is reducing the output voltage and/or output current of non-isolated voltage stabilizing flow equalizing circuit；When non-isolated voltage stabilizing is flowed
When the output voltage of circuit is less than default stream magnitude of voltage and/or above-mentioned loop current less than default stream current value, first
Unit 200 is flowed in voltage stabilizing and the second voltage stabilizing flows unit 600 respectively according to the first control signal Ctrl1With the second control signal
Ctrl2Alternation is increasing the output voltage and/or output current of non-isolated voltage stabilizing flow equalizing circuit.
In the present embodiment, unit 200 is flowed in above-mentioned first voltage stabilizing and the alternately adjustment output of unit 600 is flowed in the second voltage stabilizing
It is larger in high current input and load power demand that the mode of voltage and output current contributes to non-isolated voltage stabilizing flow equalizing circuit
In the case of stably can work.
Fig. 4 shows the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided, wherein, the first voltage stabilizing
The internal structure of unit 200, voltage sampling unit 300 and current sampling unit 400 is same as shown in Figure 2, therefore no longer
Repeat.
For unit 600 is flowed in the second voltage stabilizing, which includes the second isolating transformer T2, second switch pipe 601, the 3rd afterflow
Diode D3 and the 4th sustained diode 4.
The first end 1 of the armature winding of the second isolating transformer T2 is the unidirectional current regulation and control that unit 600 is flowed in the second voltage stabilizing
End, second end 2 of the armature winding of the second isolating transformer T2 connect the earth terminal of the first controller 100, the second isolation transformation
The first end 3 of the secondary windings of device T2 and the second end 4 connect the controlled end and input of second switch pipe 601 respectively, and second opens
The outfan and the common contact of the anode of the 3rd sustained diode 3 for closing pipe 601 is that the first defeated of unit 600 is flowed in the second voltage stabilizing
The common contact for entering the negative electrode of end, the input of second switch pipe 601 and the 4th sustained diode 4 flows unit for the second voltage stabilizing
600 the second input, the anode of the negative electrode and the 4th sustained diode 4 of the 3rd sustained diode 3 are respectively the second voltage stabilizing
Outfan and the loop end of unit 600 are flowed.
Wherein, second switch pipe 601 and the semiconductor switch pipe that first switch pipe 201 is same type, the quasiconductor are opened
Close pipe can be metal-oxide-semiconductor (include NMOS tube and PMOS), IGBT or other possess the semiconductor device of switching characteristic, and
The semiconductor switch pipe is metal-oxide-semiconductor or during IGBT, and the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively semiconductor switch pipe
Controlled end, input and outfan.Due to first switch pipe 201 with it is identical described in first embodiment of the invention, here is not
Repeat again.And for second switch pipe 601, when second switch pipe 601 is metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT,
Source electrode and drain electrode are respectively controlled end, input and the outfan of second switch pipe 601.In the present embodiment, as shown in figure 4,
Second switch pipe 601 is specially PMOS Q2.
In the present embodiment, the operation principle of unit 600 is flowed in the second voltage stabilizing and the work of unit 200 is flowed in the first voltage stabilizing
Principle is identical, wherein, the first control signal that first switch pipe 201 is exported according to the first controller 100 with second switch pipe 601
Ctrl1With the second control signal Ctrl2When realizing that alternate conduction, i.e. PMOS Q1 are turned on, the shut-off of PMOS Q2；PMOS Q1
During shut-off, PMOS Q2 conducting, so unit 200 is flowed in the first voltage stabilizing and the second voltage stabilizing is flowed unit 600 and forms complementary
Working condition is flowed in voltage stabilizing, and the output voltage and output current of whole non-isolated voltage stabilizing flow equalizing circuit are controlled, to ensure
Output voltage and output current are stablized.
Embodiment three：
On the basis of the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 1, electricity is flowed in the non-isolated voltage stabilizing that the present embodiment is provided
As shown in figure 5, wherein, the first voltage stabilizing is flowed unit 200 and also has the first afterflow control end and a second afterflow control end on road, first
Voltage stabilizing is flowed the first afterflow control end and the second afterflow control end of unit 200 and is also connected with the first controller 100.
Fig. 6 shows the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided, wherein, voltage sample
The internal structure of unit 300 and current sampling unit 400 is same as shown in Figure 2, therefore repeats no more.
For unit 200 is flowed in the first voltage stabilizing, as shown in fig. 6, which includes the 3rd isolating transformer T3, the 3rd switching tube
203rd, the 4th isolating transformer T4, the 4th switching tube 204 and the 5th switching tube 205.
The first end 1 of the armature winding of the 3rd isolating transformer T3 is the unidirectional current regulation and control that unit 200 is flowed in the first voltage stabilizing
End, the second end 2 of the armature winding of the 3rd isolating transformer T3 and the first controller 100 are connected to ground, the 3rd isolating transformer altogether
The first end 3 of the secondary windings of T3 and the second end 4 connect the controlled end and input of the 3rd switching tube 203, the 3rd switch respectively
The common contact of the input of the outfan of pipe 203 and the 4th switching tube 204 is the first input that unit 200 is flowed in the first voltage stabilizing
Unit 200 is flowed for the first voltage stabilizing in end, the common contact of the outfan of the input and the 5th switching tube 205 of the 3rd switching tube 203
The second input, the first end 1 of the armature winding of the 4th isolating transformer T4 is that the first voltage stabilizing is flowed the first of unit 200 and continued
Flow control end, the second end 2 of the armature winding of the 4th isolating transformer T4 and the first controller 100 are connected to ground, the 4th isolation altogether
The first end 3 of the secondary windings of transformator T4 and the second end 4 connect the controlled end and input of the 4th switching tube 204 respectively, the
The controlled end of five switching tubes 205 is the second afterflow control end that unit 200 is flowed in the first voltage stabilizing, the output of the 4th switching tube 204
The input of end and the 5th switching tube 205 is respectively outfan and the loop end that unit 200 is flowed in the first voltage stabilizing.
Wherein, the semiconductor switch of the 3rd switching tube 203, the 4th switching tube 204 and the 5th switching tube 205 for same type
Pipe, the semiconductor switch pipe can be metal-oxide-semiconductor (include NMOS tube and PMOS), IGBT or other possess the half of switching characteristic
Conductor device, and be metal-oxide-semiconductor or during IGBT in the semiconductor switch pipe, the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively
The controlled end of semiconductor switch pipe, input and outfan.Especially, when the 3rd switching tube 203 is metal-oxide-semiconductor or IGBT, MOS
Pipe or the grid of IGBT, source electrode and drain electrode are respectively controlled end, input and the outfan of the 3rd switching tube 203；In the same manner, when
When four switching tubes 204 are metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively the 4th switching tube 204
Controlled end, input and outfan；When the 5th switching tube 205 is metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and
Drain electrode is respectively controlled end, input and the outfan of the 5th switching tube 205.In the present embodiment, as shown in fig. 6, the 3rd opens
Close pipe 203, the 4th switching tube 204 and the 5th switching tube 205 and be specifically respectively PMOS Q3, PMOS Q4 and PMOS Q5.
The non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 6 is described further below in conjunction with operation principle：
First inductance L1 carries out exporting after energy storage to the first unidirectional current Vin+, the afterflow control of the output of the first controller 100
Signal drives PMOS Q4 to turn on after the 4th isolating transformer T4 carries out isolation processing, with what is exported to the first inductance L1
Unidirectional current is exported after carrying out afterflow to load 500, and the afterflow control signal of the output of the first controller 100 drives PMOS Q6 to lead
Passing to and exporting after afterflow being carried out to the loop current exported by load 500 to the second inductance L2, the second inductance L2 is to the loop electricity
Stream exports the second unidirectional current Vin- after carrying out energy storage, as the symmetrical energy storage of the first inductance L1 and the second inductance L2 is acted on, so as to
The current value of the second unidirectional current Vin- is made equal to the current value of the first unidirectional current Vin+.Meanwhile, first resistor R1 and second resistance
R2 carries out voltage sample to the unidirectional current of load to output, and voltage sampling signal is fed back to the first controller 100, and the 3rd is electric
Resistance R3 samples to the loop current for loading, and poor to the sampled voltage at 3rd resistor R3 two ends by difference amplifier U1
Divide and corresponding current sampling signal is exported to the first controller 100 after amplifying, then the first controller 100 is according to voltage sampling signal
VSWith current sampling signal ISExport the first control signal Ctrl1To the first isolating transformer T1, the first control signal Ctrl1Jing
Cross, PMOS Q3 is according to
One control signal Ctrl1Corresponding dutycycle realizes make-break operation, and then realizes the adjustment to output voltage and output current, with
Ensure stablizing for output voltage and output current.Specifically, when the output voltage of non-isolated voltage stabilizing flow equalizing circuit is equal more than default
When stream magnitude of voltage and/or above-mentioned loop current are more than default stream current value, with the first control signal Ctrl1Corresponding duty
Than reducing according to a certain change in duty cycle value, then PMOS Q3 can make non-isolated steady during corresponding make-break operation is realized
The output voltage and/or output current of pressure flow equalizing circuit is also reduced accordingly；When the output of non-isolated voltage stabilizing flow equalizing circuit
When voltage is less than default stream magnitude of voltage and/or above-mentioned loop current less than default stream current value, with the first control signal
Ctrl1Corresponding dutycycle can increase according to a certain change in duty cycle value, then PMOS Q3 is realizing corresponding make-break operation
Cheng Zhongke makes the output voltage and/or output current of non-isolated voltage stabilizing flow equalizing circuit also be increased accordingly.
In the present embodiment, by realizing that afterflow is acted on using the 4th switching tube 204 and the 5th switching tube 205, Neng Goujin
One step reduces conduction loss, improves power supplying efficiency, makes non-isolated voltage stabilizing flow equalizing circuit be applied to the larger applied field of input current
Scape.
Example IV：
On the basis of the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 5, electricity is flowed in the non-isolated voltage stabilizing that the present embodiment is provided
Road is as shown in fig. 7, which further includes that unit 700 is flowed in the 5th inductance L5, the 6th inductance L6 and the 3rd voltage stabilizing.
The first end of the first end of the 5th inductance L5 and the 6th inductance L6 connects the first end of the first inductance L1 and respectively
The first end of two inductance L2, second end of the 5th inductance L5 and second end of the 6th inductance L6 connect the 3rd voltage stabilizing respectively and flow list
The first input end and the second input of unit 700, the 3rd voltage stabilizing flow the unidirectional current regulation and control end of unit 700, the first afterflow control
End and the second afterflow control end are all connected with the first controller 100, and the outfan of unit 700 and loop end difference are flowed in the 3rd voltage stabilizing
Connect outfan and loop end that unit 200 is flowed in the first voltage stabilizing.
Under the control of the first controller 100, the first voltage stabilizing is flowed unit 200 and flows unit 700 with the 3rd voltage stabilizing and replaces
Work；5th inductance L5 carries out the 5th unidirectional current Vin+ is exported after energy storage to the first unidirectional current Vin+ " list is flowed to the 3rd voltage stabilizing
Unit 700, when unit 700 is flowed in the 3rd voltage stabilizing to work, the 3rd voltage stabilizing flows unit 700 by the 5th unidirectional current Vin+ " afterflow is defeated
Go out to load 500, the loop current exported by load 500 flows 700 afterflow of unit through the 3rd voltage stabilizing and exports to the 6th inductance
L6, the 6th inductance L6 carry out the 6th unidirectional current Vin- is exported after energy storage to above-mentioned loop current ", the 6th unidirectional current Vin- "
Current value be equal to the 5th unidirectional current Vin+ " current value；First controller 100 is exporting the first control signal Ctrl1When export
3rd control signal Ctrl3；The voltage sampling signal and electric current that first controller 100 is exported according to voltage sampling unit 300 is adopted
The current sampling signal of the output of sample unit 400 exports the first control signal Ctrl respectively1With the 3rd control signal Ctrl3To first
Unit 200 is flowed in voltage stabilizing and unit 700 is flowed in the 3rd voltage stabilizing；Preset when the output voltage of non-isolated voltage stabilizing flow equalizing circuit is more than
When the loop current exported by stream magnitude of voltage and/or load 500 is more than default stream current value, unit 200 is flowed in the first voltage stabilizing
Unit 700 is flowed respectively according to the first control signal Ctrl with the 3rd voltage stabilizing1With the 3rd control signal Ctrl3Alternation is subtracting
The output voltage and/or output current of little non-isolated voltage stabilizing flow equalizing circuit；When the output voltage of non-isolated voltage stabilizing flow equalizing circuit it is little
When default stream magnitude of voltage and/or above-mentioned loop current are less than default stream current value, 200 He of unit is flowed in the first voltage stabilizing
3rd voltage stabilizing flows unit 700 respectively according to the first control signal Ctrl1With the 3rd control signal Ctrl3Alternation is increasing
The output voltage and/or output current of non-isolated voltage stabilizing flow equalizing circuit.
In the present embodiment, unit 200 is flowed in above-mentioned first voltage stabilizing and the alternately adjustment output of unit 700 is flowed in the 3rd voltage stabilizing
It is larger in high current input and load power demand that the mode of voltage and output current contributes to non-isolated voltage stabilizing flow equalizing circuit
In the case of stably can work.
Fig. 8 shows the exemplary circuit structure of the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided, wherein, the first voltage stabilizing
The internal structure of unit 200, voltage sampling unit 300 and current sampling unit 400 is same as shown in Figure 6, therefore no longer
Repeat.
For unit 700 is flowed in the 3rd voltage stabilizing, which includes the 5th isolating transformer T5, the 6th switching tube 701, the 6th isolation
Transformator T6, the 7th switching tube 702 and the 8th switching tube 703.
The first end 1 of the armature winding of the 5th isolating transformer T5 is the unidirectional current regulation and control that unit 700 is flowed in the 3rd voltage stabilizing
End, the second end 2 of the armature winding of the 5th isolating transformer T5 and the first controller 100 are connected to ground, the 5th isolating transformer altogether
The first end 3 of the secondary windings of T5 and the second end 4 connect the controlled end and input of the 6th switching tube 701, the 6th switch respectively
The common contact of the input of the outfan of pipe 701 and the 7th switching tube 702 is the first input that unit 700 is flowed in the 3rd voltage stabilizing
Unit 700 is flowed for the 3rd voltage stabilizing in end, the common contact of the outfan of the input and the 8th switching tube 703 of the 6th switching tube 701
The second input, the first end 1 of the armature winding of the 6th isolating transformer T6 is that the 3rd voltage stabilizing is flowed the first of unit 700 and continued
Flow control end, the second end 2 of the armature winding of the 6th isolating transformer T6 and the first controller 100 are connected to ground, the 6th isolation altogether
The first end 3 of the secondary windings of transformator T6 and the second end 4 connect the controlled end and input of the 7th switching tube 702 respectively, the
The controlled end of eight switching tubes 703 is the second afterflow control end that unit 700 is flowed in the 3rd voltage stabilizing, the output of the 7th switching tube 702
The input of end and the 8th switching tube 703 is respectively outfan and the loop end that unit 700 is flowed in the 3rd voltage stabilizing.
Wherein, the 3rd switching tube 203, the 4th switching tube 204, the 5th switching tube 205, the 6th switching tube the 701, the 7th are switched
Pipe 702 and the semiconductor switch pipe that the 8th switching tube 703 is same type, the semiconductor switch pipe can be that metal-oxide-semiconductor (includes
NMOS tube and PMOS), IGBT or other possess the semiconductor device of switching characteristic, and be MOS in the semiconductor switch pipe
Pipe or during IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively the controlled end of semiconductor switch pipe, input and defeated
Go out end.Due to the 3rd switching tube 203, the 4th switching tube 204 and the 5th switching tube 205 and the phase described in third embodiment of the invention
Together, will not be described here.And for the 6th switching tube 701, the 7th switching tube 702 and the 8th switching tube 703, when the 6th switching tube
701 is metal-oxide-semiconductor or during IGBT, and the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode are respectively the controlled end of the 6th switching tube 701, defeated
Enter end and outfan；In the same manner, when the 7th switching tube 702 is metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and drain electrode
The respectively controlled end of the 7th switching tube 702, input and outfan；When the 8th switching tube 703 is metal-oxide-semiconductor or IGBT, MOS
Pipe or the grid of IGBT, source electrode and drain electrode are respectively controlled end, input and the outfan of the 8th switching tube 703.In this enforcement
In example, as shown in figure 8, the 6th switching tube 701, the 7th switching tube 702 and the 8th switching tube 703 be specifically respectively PMOS Q6,
PMOS Q7 and PMOS Q8.
In the present embodiment, the operation principle of unit 700 is flowed in the 3rd voltage stabilizing and the work of unit 200 is flowed in the first voltage stabilizing
Principle is identical, wherein, the first control signal that the 3rd switching tube 203 and the 6th switching tube 701 are exported according to the first controller 100
Ctrl1With the 3rd control signal Ctrl3When realizing that alternate conduction, i.e. PMOS Q3 are turned on, the shut-off of PMOS Q6；PMOS Q3 is closed
When disconnected, PMOS Q6 conducting, so the first voltage stabilizing is flowed unit 200 and the 3rd voltage stabilizing and flows unit 700 and forms complementary steady
Pressure flows working condition, and the output voltage and output current of whole non-isolated voltage stabilizing flow equalizing circuit are controlled, defeated to ensure
Go out stablizing for voltage and output current.
In addition, the present embodiment is by using the 4th switching tube 204, the 5th switching tube 205, the 7th switching tube 702 and the 8th
Switching tube 703 realizes that afterflow is acted on, and can further reduce conduction loss, and then improve power supplying efficiency.
Embodiment five：
The non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided respectively as shown in Fig. 9, Figure 10, Figure 11 and Figure 12, Fig. 9, figure
10th, the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 11 and Figure 12 is in the non-isolated voltage stabilizing shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 7 respectively
Further include on the basis of flow equalizing circuit that pressure unit 800, the input of pressure unit 800 and loop end connect respectively
The first sampling end that the outfan and current sampling unit 400 of unit 200 are flowed in the first voltage stabilizing is connect, pressure unit 800 is defeated to which
Entering the be input into unidirectional current in end carries out blood pressure lowering and processes and pass through its outfan exporting.
As shown in figure 13, pressure unit 800 include the 9th switching tube 801, the 7th inductance L7, the first diode D11, first
Electric capacity C11 and second controller 802.
Input of the input of the 9th switching tube 801 for pressure unit 800, the outfan of the 9th switching tube 801 and the
The negative electrode of one diode D11 is connected to the first end of the 7th inductance L7 altogether, and the of second end of the 7th inductance L7 and the first electric capacity C11
Second end of outfan of the common contact of one end for pressure unit 800, the anode of the first diode D11 and the first electric capacity C11
Loop end of the common contact for pressure unit 800, the controlled end connection second controller 802 of the 9th switching tube 801.
Above-mentioned the 9th switching tube 801, the 7th inductance L7, the first diode D11 and the first electric capacity C11 constitute a blood pressure lowering
Formula buck circuit, the buck buck circuit carry out blood pressure lowering process to the unidirectional current is input into by the input of the 9th switching tube 801
After export to load, and blood pressure lowering ratio is then determined by second controller 802, and 802 output control signal of second controller drives the
Nine switching tubes 801 realize make-break operation according to corresponding dutycycle, so the duty cycle of switching of the 9th switching tube 801 determines this
The blood pressure lowering ratio of buck buck circuit.
Wherein, the 9th switching tube 801 can be metal-oxide-semiconductor (include NMOS tube and PMOS), IGBT or other possess out
Close the semiconductor device of characteristic.When the 9th switching tube 801 is metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and leakage
Pole is respectively controlled end, input and the outfan of the 9th switching tube 801.Second controller 802 can be single-chip microcomputer or pulsewidth
Manipulator.
In sum, the present embodiment, can by above-mentioned pressure unit 800 is added in non-isolated voltage stabilizing flow equalizing circuit
Realize that blood pressure lowering is processed to export the unidirectional current for meeting loaded work piece voltage range in the case of high input voltage, so this enforcement
The non-isolated voltage stabilizing flow equalizing circuit that example is provided can be applied to low input (such as 48V low pressure) simultaneously and high input voltage is (such as
400V high pressure) application scenarios.
Embodiment six：
On the basis of the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 9, Figure 10, Figure 11 and Figure 12, what the present embodiment was provided
Respectively as shown in Figure 14, Figure 15, Figure 16 and Figure 17, pressure unit 800 also has blood pressure lowering control end to non-isolated voltage stabilizing flow equalizing circuit,
The blood pressure lowering control end of pressure unit 800 is connected with the first controller 100.
As shown in figure 18, pressure unit 800 include the tenth switching tube 803, the 8th inductance L8, the second diode D12 and
Second electric capacity C12.
Input of the input of the tenth switching tube 803 for pressure unit 800, the outfan of the tenth switching tube 803 and the
The negative electrode of two diode D12 is connected to the first end of the 8th inductance L8 altogether, and the of second end of the 8th inductance L8 and the second electric capacity C12
Second end of outfan of the common contact of one end for pressure unit 800, the anode of the second diode D12 and the second electric capacity C12
Contact is the loop end of pressure unit 800 altogether, and the controlled end of the tenth switching tube 803 is the blood pressure lowering control end of pressure unit 800.
Above-mentioned the tenth switching tube 803, the 8th inductance L8, the second diode D12 and the second electric capacity C12 constitute a drop
Pressure type buck circuits, the buck buck circuit are carried out at blood pressure lowering to the unidirectional current is input into by the input of the tenth switching tube 803
Export to load after reason, and blood pressure lowering ratio is then determined by the first controller 100,100 output control signal of the first controller drives
Tenth switching tube 803 realizes make-break operation according to corresponding dutycycle, so the duty cycle of switching of the tenth switching tube 803 is determined
The blood pressure lowering ratio of the buck buck circuit.
Wherein, the tenth switching tube 803 can be metal-oxide-semiconductor (include NMOS tube and PMOS), IGBT or other possess out
Close the semiconductor device of characteristic.When the tenth switching tube 803 is metal-oxide-semiconductor or IGBT, the grid of metal-oxide-semiconductor or IGBT, source electrode and leakage
Pole is respectively controlled end, input and the outfan of the tenth switching tube 803.
In sum, the present embodiment, can by above-mentioned pressure unit 800 is added in non-isolated voltage stabilizing flow equalizing circuit
Realize that blood pressure lowering is processed to export the unidirectional current for meeting loaded work piece voltage range in the case of high input voltage, so this enforcement
The non-isolated voltage stabilizing flow equalizing circuit that example is provided can be applied to low input (such as 48V low pressure) simultaneously and high input voltage is (such as
400V high pressure) application scenarios.
Embodiment seven：
In the non-isolated shown in Fig. 1, Fig. 3, Fig. 5, Fig. 7, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 14, Figure 15, Figure 16 and Figure 17
On the basis of voltage stabilizing flow equalizing circuit, the non-isolated voltage stabilizing flow equalizing circuit that the present embodiment is provided also includes filter capacitor C1.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 1, as shown in figure 19, it is equal that filter capacitor C1 is connected to the first voltage stabilizing
Between the outfan of stream unit 200 and loop end, filter capacitor C1 flows the unidirectional current of the output of unit 200 to the first voltage stabilizing to be carried out
Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 3, as shown in figure 20, it is equal that filter capacitor C1 is connected to the first voltage stabilizing
Between the outfan of stream unit 200 and loop end, filter capacitor C1 flows unit 200 to the first voltage stabilizing and list is flowed in the second voltage stabilizing
The unidirectional current exported by unit 600 is filtered process.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 5, as shown in figure 21, it is equal that filter capacitor C1 is connected to the first voltage stabilizing
Between the outfan of stream unit 200 and loop end, filter capacitor C1 flows the unidirectional current of the output of unit 200 to the first voltage stabilizing to be carried out
Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 7, as shown in figure 22, it is equal that filter capacitor C1 is connected to the first voltage stabilizing
Between the outfan of stream unit 200 and loop end, filter capacitor C1 flows unit 200 to the first voltage stabilizing and list is flowed in the 3rd voltage stabilizing
The unidirectional current exported by unit 700 is filtered process.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Fig. 9, as shown in figure 23, it is equal that filter capacitor C1 is connected to the first voltage stabilizing
Between the outfan of stream unit 200 and loop end, filter capacitor C1 flows the unidirectional current of the output of unit 200 to the first voltage stabilizing to be carried out
Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 10, as shown in figure 24, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows unit 200 to the first voltage stabilizing and the second voltage stabilizing is flowed
The unidirectional current exported by unit 600 is filtered process.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 11, as shown in figure 25, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows the unidirectional current of the output of unit 200 and enters to the first voltage stabilizing
Row Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 12, as shown in figure 26, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows unit 200 to the first voltage stabilizing and the 3rd voltage stabilizing is flowed
The unidirectional current exported by unit 700 is filtered process.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 14, as shown in figure 27, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows the unidirectional current of the output of unit 200 and enters to the first voltage stabilizing
Row Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 15, as shown in figure 28, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows unit 200 to the first voltage stabilizing and the second voltage stabilizing is flowed
The unidirectional current exported by unit 600 is filtered process.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 16, as shown in figure 29, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows the unidirectional current of the output of unit 200 and enters to the first voltage stabilizing
Row Filtering Processing.
Based on the non-isolated voltage stabilizing flow equalizing circuit shown in Figure 17, as shown in figure 30, filter capacitor C1 is connected to the first voltage stabilizing
Flow between outfan and the loop end of unit 200, filter capacitor C1 flows unit 200 to the first voltage stabilizing and the 3rd voltage stabilizing is flowed
The unidirectional current exported by unit 700 is filtered process.In sum, electricity is flowed in non-isolated voltage stabilizing provided in an embodiment of the present invention
Road can be kept stable output voltage and output current in the case where not limiting by input pressure reduction, improve power supplying efficiency.
Which includes existing multiple power circuits, shunt current circuit and multiple electric current flow equalizing circuits, shunt current circuit
The output current of power circuit is shunted and is exported to electric current flow equalizing circuit, the electric current combining module in electric current flow equalizing circuit
Any two-way electric current exported to shunt current circuit exports the first unidirectional current Vin+ after carrying out interflow process.Above-mentioned power supply system
System also includes the non-isolated voltage stabilizing flow equalizing circuit as shown in Fig. 1 to Figure 30, the first inductance L1 in non-isolated voltage stabilizing flow equalizing circuit
The first unidirectional current Vin+ is accessed from above-mentioned electric current combining module.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (24)
1. a kind of non-isolated voltage stabilizing flow equalizing circuit, including the first controller, it is characterised in that the non-isolated voltage stabilizing flow equalizing circuit
Also include：
Unit, voltage sampling unit and current sampling unit are flowed in first inductance, the second inductance, the first voltage stabilizing；
The first end of first inductance accesses the first unidirectional current, and the first end of second inductance exports the second unidirectional current, institute
Second end at the second end and second inductance of stating the first inductance connects first voltage stabilizing respectively and flows the first defeated of unit
Enter end and the second input, first voltage stabilizing flows the outfan of unit to load output unidirectional current, the voltage sample list
The input and outfan of unit connects the outfan and first controller that unit is flowed in first voltage stabilizing, the electricity respectively
First sampling end of stream sampling unit receives the loop current of load output, the second sampling end of the current sampling unit and defeated
Go out end and connect first voltage stabilizing respectively to flow the loop end of unit and first controller, first controller also with institute
State the unidirectional current regulation and control end connection that unit is flowed in the first voltage stabilizing；
First inductance is exported after carrying out energy storage to first unidirectional current to first voltage stabilizing and flows unit, and described first
Voltage stabilizing is flowed unit and the unidirectional current afterflow exported by first inductance is exported to the load, and what the load was exported returns
Road electric current flows unit afterflow through first voltage stabilizing and exports to second inductance, and second inductance is to loop electricity
Stream exports second unidirectional current after carrying out energy storage, the second galvanic current value is equal to the described first galvanic electric current
Value；The voltage sampling unit is sampled to the output voltage of the non-isolated voltage stabilizing flow equalizing circuit, and feedback voltage sampling
Signal carries out current sample to the loop current to first controller, the current sampling unit, and feedback current is adopted
, to first controller, first controller is defeated according to the voltage sampling signal and the current sampling signal for sample signal
Go out the first control signal unit is flowed to first voltage stabilizing；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit is more than pre-
If flow magnitude of voltage and/or the loop current more than default stream current value, first voltage stabilizing flows unit according to institute
State output voltage and/or output current that the first control signal reduces the non-isolated voltage stabilizing flow equalizing circuit；When the non-isolated
The output voltage of voltage stabilizing flow equalizing circuit is flowed less than described presetting less than default magnitude of voltage and/or the loop current of flowing
During current value, first voltage stabilizing is flowed unit and increases the non-isolated voltage stabilizing flow equalizing circuit according to first control signal
Output voltage and/or output current.
2. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 1, it is characterised in that the non-isolated voltage stabilizing flow equalizing circuit is also
Unit is flowed including the 3rd inductance, the 4th inductance and the second voltage stabilizing；
The first end of the first end and the 4th inductance of the 3rd inductance connect respectively first inductance first end and
Second end of the first end of second inductance, the second end of the 3rd inductance and the 4th inductance connects described respectively
The first input end of unit and the second input are flowed in two voltage stabilizings, and the unidirectional current regulation and control end of unit and institute are flowed in second voltage stabilizing
The connection of the first controller is stated, the outfan of unit is flowed in second voltage stabilizing and loop end connects first voltage stabilizing respectively and flows
The outfan of unit and loop end；
Under the control of first controller, first voltage stabilizing is flowed unit and flows units alternately work with second voltage stabilizing
Make；3rd inductance carries out the 3rd unidirectional current of output after energy storage and flows list to second voltage stabilizing to first unidirectional current
Unit, when second voltage stabilizing flows cell operation, second voltage stabilizing is flowed unit and exports the 3rd unidirectional current afterflow
To the load, the loop current exported by the load flows unit afterflow through second voltage stabilizing and exports to the described 4th
Inductance, the 4th inductance carry out the 4th unidirectional current, the 4th galvanic electric current are exported after energy storage to the loop current
Value is equal to the 3rd galvanic current value；First controller is according to the voltage sampling signal and the current sample
Signal exports first control signal and the second control signal to first voltage stabilizing respectively and flows unit and described second steady
Pressure flows unit；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit is more than the default magnitude of voltage and/or described of flowing
When loop current is more than the default stream current value, unit is flowed in first voltage stabilizing and unit point is flowed in second voltage stabilizing
Not according to first control signal and second control signal alternation reducing the non-isolated voltage stabilizing flow equalizing circuit
Output voltage and/or output current；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit is less than the default stream electricity
When pressure value and/or the loop current are less than the default stream current value, unit and described second are flowed in first voltage stabilizing
Voltage stabilizing flow unit respectively according to first control signal and second control signal alternation with increase it is described it is non-every
From the output voltage and/or output current of voltage stabilizing flow equalizing circuit.
3. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 1, it is characterised in that first voltage stabilizing is flowed unit and also wrapped
Include the first afterflow control end and the second afterflow control end, the first afterflow control end and the second afterflow control end also with institute
State the connection of the first controller.
4. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 3, it is characterised in that the non-isolated voltage stabilizing flow equalizing circuit is also
Unit is flowed including the 5th inductance, the 6th inductance and the 3rd voltage stabilizing；
The first end of the first end and the 6th inductance of the 5th inductance connect respectively first inductance first end and
Second end of the first end of second inductance, the second end of the 5th inductance and the 6th inductance connects described respectively
The first input end of unit and the second input are flowed in three voltage stabilizings, the 3rd voltage stabilizing flow the unidirectional current regulation and control end of unit, the
One afterflow control end and the second afterflow control end are all connected with first controller, and the outfan of unit is flowed in the 3rd voltage stabilizing
Connect outfan and the loop end that unit is flowed in first voltage stabilizing respectively with loop end；
Under the control of first controller, first voltage stabilizing is flowed unit and flows units alternately work with the 3rd voltage stabilizing
Make；5th inductance carries out the 5th unidirectional current of output after energy storage and flows list to the 3rd voltage stabilizing to first unidirectional current
Unit, when the 3rd voltage stabilizing flows cell operation, the 3rd voltage stabilizing is flowed unit and exports the 5th unidirectional current afterflow
To the load, the loop current exported by the load flows unit afterflow through the 3rd voltage stabilizing and exports to the described 6th
Inductance, the 6th inductance carry out the 6th unidirectional current, the 6th galvanic electric current are exported after energy storage to the loop current
Value is equal to the 5th galvanic current value；First controller is according to the voltage sampling signal and the current sample
Signal exports first control signal and the 3rd control signal to first voltage stabilizing respectively and flows unit and described 3rd steady
Pressure flows unit；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit is more than the default magnitude of voltage and/or described of flowing
When loop current is more than the default stream current value, unit is flowed in first voltage stabilizing and unit point is flowed in the 3rd voltage stabilizing
Not according to first control signal and the 3rd control signal alternation reducing the non-isolated voltage stabilizing flow equalizing circuit
Output voltage and/or output current；When the output voltage of the non-isolated voltage stabilizing flow equalizing circuit is less than the default stream electricity
When pressure value and/or the loop current are less than the default stream current value, unit and the described 3rd are flowed in first voltage stabilizing
Voltage stabilizing flow unit respectively according to first control signal and the 3rd control signal alternation with increase it is described it is non-every
From the output voltage and/or output current of voltage stabilizing flow equalizing circuit.
5. the non-isolated voltage stabilizing flow equalizing circuit as described in any one of Claims 1-4, it is characterised in that the non-isolated voltage stabilizing
Flow equalizing circuit also includes filter capacitor, and the filter capacitor is connected to outfan and the loop end that unit is flowed in first voltage stabilizing
Between.
6. the non-isolated voltage stabilizing flow equalizing circuit as described in any one of Claims 1-4, it is characterised in that the non-isolated voltage stabilizing
Flow equalizing circuit also includes that pressure unit, the input of the pressure unit and loop end connect first voltage stabilizing respectively and flow list
First sampling end of the outfan and the current sampling unit of unit, the unidirectional current is input into its input by the pressure unit
Carry out blood pressure lowering and process and pass through its outfan exporting.
7. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 6, it is characterised in that the non-isolated voltage stabilizing flow equalizing circuit is also
Including filter capacitor, the filter capacitor is connected to first voltage stabilizing and flows between the outfan of unit and loop end.
8. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 6, it is characterised in that the blood pressure lowering control end of the pressure unit
Also it is connected with first controller.
9. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 8, it is characterised in that the non-isolated voltage stabilizing flow equalizing circuit is also
Including filter capacitor, the filter capacitor is connected to first voltage stabilizing and flows between the outfan of unit and loop end.
10. non-isolated voltage stabilizing flow equalizing circuit as claimed in claim 1, it is characterised in that unit bag is flowed in first voltage stabilizing
Include：
First isolating transformer, first switch pipe, the first fly-wheel diode and the second fly-wheel diode；
The first end of the armature winding of first isolating transformer is the unidirectional current regulation and control end that unit is flowed in first voltage stabilizing,
Second end of the armature winding of first isolating transformer is connected to ground, the first isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the first switch pipe respectively, and described first opens
The outfan and the common contact of the anode of first fly-wheel diode for closing pipe is that the first defeated of unit is flowed in first voltage stabilizing
Enter end, the input of the first switch pipe is that first voltage stabilizing is equal with the common contact of the negative electrode of second fly-wheel diode
The anode of the second input of stream unit, the negative electrode of first fly-wheel diode and second fly-wheel diode is respectively institute
State outfan and loop end that unit is flowed in the first voltage stabilizing.
11. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 2, it is characterised in that unit is flowed in first voltage stabilizing
The structure that structure flows unit with second voltage stabilizing is identical；
Unit is flowed in first voltage stabilizing to be included：
First isolating transformer, first switch pipe, the first fly-wheel diode and the second fly-wheel diode；
The first end of the armature winding of first isolating transformer is the unidirectional current regulation and control end that unit is flowed in first voltage stabilizing,
Second end of the armature winding of first isolating transformer is connected to ground, the first isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the first switch pipe respectively, and described first opens
The outfan and the common contact of the anode of first fly-wheel diode for closing pipe is that the first defeated of unit is flowed in first voltage stabilizing
Enter end, the input of the first switch pipe is that first voltage stabilizing is equal with the common contact of the negative electrode of second fly-wheel diode
The anode of the second input of stream unit, the negative electrode of first fly-wheel diode and second fly-wheel diode is respectively institute
State outfan and loop end that unit is flowed in the first voltage stabilizing；
Unit is flowed in second voltage stabilizing to be included：
Second isolating transformer, second switch pipe, the 3rd fly-wheel diode and the 4th fly-wheel diode；
The first end of the armature winding of second isolating transformer is the unidirectional current regulation and control end that unit is flowed in second voltage stabilizing,
Second end of the armature winding of second isolating transformer is connected to ground, the second isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the second switch pipe respectively, and described second opens
The outfan and the common contact of the anode of the 3rd fly-wheel diode for closing pipe is that the first defeated of unit is flowed in second voltage stabilizing
Enter end, the input of the second switch pipe is that second voltage stabilizing is equal with the common contact of the negative electrode of the 4th fly-wheel diode
Second input of stream unit, the anode of the negative electrode and the 4th fly-wheel diode of the 3rd fly-wheel diode are respectively institute
State outfan and loop end that unit is flowed in the second voltage stabilizing.
12. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 3, it is characterised in that unit bag is flowed in first voltage stabilizing
Include：
3rd isolating transformer, the 3rd switching tube, the 4th isolating transformer, the 4th switching tube and the 5th switching tube；
The first end of the armature winding of the 3rd isolating transformer is the unidirectional current regulation and control end that unit is flowed in first voltage stabilizing,
Second end of the armature winding of the 3rd isolating transformer is connected to ground, the 3rd isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the 3rd switching tube respectively, and the described 3rd opens
The common contact of the outfan and the input of the 4th switching tube that close pipe is the first input that unit is flowed in first voltage stabilizing
List is flowed for first voltage stabilizing with the common contact of the outfan of the 5th switching tube in end, the input of the 3rd switching tube
Second input of unit, the first end of the armature winding of the 4th isolating transformer are that first voltage stabilizing flows the of unit
One afterflow control end, the second end and first controller of the armature winding of the 4th isolating transformer are connected to ground, institute altogether
The first end and the second end for stating the secondary windings of the 4th isolating transformer connects the controlled end of the 4th switching tube and defeated respectively
Enter end, the controlled end of the 5th switching tube is the second afterflow control end that unit is flowed in first voltage stabilizing, and the described 4th opens
The input for closing the outfan and the 5th switching tube of pipe is respectively outfan and the loop that unit is flowed in first voltage stabilizing
End.
13. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 4, it is characterised in that unit is flowed in first voltage stabilizing
The structure that structure flows unit with the 3rd voltage stabilizing is identical；
Unit is flowed in first voltage stabilizing to be included：
3rd isolating transformer, the 3rd switching tube, the 4th isolating transformer, the 4th switching tube and the 5th switching tube；
The first end of the armature winding of the 3rd isolating transformer is the unidirectional current regulation and control end that unit is flowed in first voltage stabilizing,
Second end of the armature winding of the 3rd isolating transformer is connected to ground, the 3rd isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the 3rd switching tube respectively, and the described 3rd opens
The common contact of the outfan and the input of the 4th switching tube that close pipe is the first input that unit is flowed in first voltage stabilizing
List is flowed for first voltage stabilizing with the common contact of the outfan of the 5th switching tube in end, the input of the 3rd switching tube
Second input of unit, the first end of the armature winding of the 4th isolating transformer are that first voltage stabilizing flows the of unit
One afterflow control end, the second end and first controller of the armature winding of the 4th isolating transformer are connected to ground, institute altogether
The first end and the second end for stating the secondary windings of the 4th isolating transformer connects the controlled end of the 4th switching tube and defeated respectively
Enter end, the controlled end of the 5th switching tube is the second afterflow control end that unit is flowed in first voltage stabilizing, and the described 4th opens
The input for closing the outfan and the 5th switching tube of pipe is respectively outfan and the loop that unit is flowed in first voltage stabilizing
End；
Unit is flowed in 3rd voltage stabilizing to be included：
5th isolating transformer, the 6th switching tube, the 6th isolating transformer, the 7th switching tube and the 8th switching tube；
The first end of the armature winding of the 5th isolating transformer is the unidirectional current regulation and control end that unit is flowed in the 3rd voltage stabilizing,
Second end of the armature winding of the 5th isolating transformer is connected to ground, the 5th isolation transformation altogether with first controller
The first end of the secondary windings of device and the second end connect the controlled end and input of the 6th switching tube respectively, and the described 6th opens
The common contact of the outfan and the input of the 7th switching tube that close pipe is the first input that unit is flowed in the 3rd voltage stabilizing
List is flowed for the 3rd voltage stabilizing with the common contact of the outfan of the 8th switching tube in end, the input of the 6th switching tube
Second input of unit, the first end of the armature winding of the 6th isolating transformer are that the 3rd voltage stabilizing flows the of unit
One afterflow control end, the second end and first controller of the armature winding of the 6th isolating transformer are connected to ground, institute altogether
The first end and the second end for stating the secondary windings of the 6th isolating transformer connects the controlled end of the 7th switching tube and defeated respectively
Enter end, the controlled end of the 8th switching tube is the second afterflow control end that unit is flowed in the 3rd voltage stabilizing, and the described 7th opens
The input for closing the outfan and the 8th switching tube of pipe is respectively outfan and the loop that unit is flowed in the 3rd voltage stabilizing
End.
The 14. non-isolated voltage stabilizing flow equalizing circuits as described in any one of Claims 1-4, it is characterised in that the voltage sample list
Unit includes first resistor and second resistance, and the first end of the first resistor is the input of the voltage sampling unit, described
Second end of first resistor and the outfan that the common contact of the first end of the second resistance is the voltage sampling unit, it is described
The second end ground connection of second resistance.
The 15. non-isolated voltage stabilizing flow equalizing circuits as described in any one of Claims 1-4, it is characterised in that the current sample list
Unit includes 3rd resistor and difference amplifier, the first end of the 3rd resistor and the first input end of the difference amplifier
Altogether contact is the first sampling end of the current sampling unit, the of the second end of the 3rd resistor and the difference amplifier
The common contact of two inputs is the second sampling end of the current sampling unit, and the outfan of the difference amplifier is the electricity
The outfan of stream sampling unit, the positive power source terminal and negative power end of the difference amplifier connect DC source and ground respectively.
16. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 6, it is characterised in that the pressure unit includes：
9th switching tube, the 7th inductance, the first diode, the first electric capacity and second controller；
The input of the 9th switching tube is the input of the pressure unit, the outfan of the 9th switching tube with it is described
The negative electrode of the first diode is connected to the first end of the 7th inductance, the second end and first electric capacity of the 7th inductance altogether
First end common contact be the pressure unit outfan, the anode of first diode and the of first electric capacity
The common contact at two ends is the loop end of the pressure unit, and the controlled end of the 9th switching tube connects the second controller.
17. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 8, it is characterised in that the pressure unit includes：
Tenth switching tube, the 8th inductance, the second diode and the second electric capacity；
The input of the tenth switching tube is the input of the pressure unit, the outfan of the tenth switching tube with it is described
The negative electrode of the second diode is connected to the first end of the 8th inductance, the second end and second electric capacity of the 8th inductance altogether
First end common contact be the pressure unit outfan, the anode of second diode and the of second electric capacity
The common contact at two ends is the loop end of the pressure unit, and the controlled end of the tenth switching tube is the blood pressure lowering control of the pressure unit
End.
18. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 10, it is characterised in that the first switch pipe is metal-oxide-semiconductor
Or IGBT；
The grid of the metal-oxide-semiconductor or the IGBT, source electrode and drain electrode be respectively the controlled end of the first switch pipe, input and
Outfan.
19. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 11, it is characterised in that the first switch pipe and described
Semiconductor switch pipe of two switching tubes for same type, the semiconductor switch pipe are metal-oxide-semiconductor or IGBT, the metal-oxide-semiconductor or institute
Grid, source electrode and the drain electrode for stating IGBT is respectively controlled end, input and the outfan of the semiconductor switch pipe.
20. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 12, it is characterised in that the 3rd switching tube, described
The semiconductor switch pipe of four switching tubes and the 5th switching tube for same type, the semiconductor switch pipe be metal-oxide-semiconductor or
The grid of IGBT, the metal-oxide-semiconductor or the IGBT, source electrode and drain electrode are respectively the controlled end of the semiconductor switch pipe, input
End and outfan.
21. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 13, it is characterised in that the 3rd switching tube, described
Four switching tubes, the 5th switching tube, the 6th switching tube, the 7th switching tube and the 8th switching tube are identical
The semiconductor switch pipe of type, the semiconductor switch pipe are grid, the source of metal-oxide-semiconductor or IGBT, the metal-oxide-semiconductor or the IGBT
Pole and drain electrode are respectively controlled end, input and the outfan of the semiconductor switch pipe.
22. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 16, it is characterised in that the 9th switching tube is metal-oxide-semiconductor
Or IGBT；
The grid of the metal-oxide-semiconductor or the IGBT, source electrode and drain electrode be respectively the controlled end of the 9th switching tube, input and
Outfan.
23. non-isolated voltage stabilizing flow equalizing circuits as claimed in claim 17, it is characterised in that the tenth switching tube is metal-oxide-semiconductor
Or IGBT；
The grid of the metal-oxide-semiconductor or the IGBT, source electrode and drain electrode be respectively the controlled end of the tenth switching tube, input and
Outfan.
A kind of 24. electric power systems, which includes multiple power circuits, shunt current circuit and multiple electric current flow equalizing circuits, the electricity
Stream shunt circuit is shunted to the output current of the power circuit and is exported to the electric current flow equalizing circuit, and the electric current is equal
Any two-way electric current that electric current combining module in current circuit is exported to the shunt current circuit carries out defeated after the process of interflow
Go out the first unidirectional current, it is characterised in that the electric power system is also included such as Claims 1-4,7 to 13,16 to 23 any one institutes
The non-isolated voltage stabilizing flow equalizing circuit stated, the first inductance in the non-isolated voltage stabilizing flow equalizing circuit are connect from the electric current combining module
Enter first unidirectional current.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415311.4A CN104201882B (en) | 2014-08-20 | 2014-08-20 | Non-isolated voltage-stabilization current-sharing circuit and power supply system |
| PCT/CN2015/070134 WO2016026260A1 (en) | 2014-08-20 | 2015-01-05 | Non-isolated voltage-stabilization and current-equalization circuit and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415311.4A CN104201882B (en) | 2014-08-20 | 2014-08-20 | Non-isolated voltage-stabilization current-sharing circuit and power supply system |
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| CN104201882A CN104201882A (en) | 2014-12-10 |
| CN104201882B true CN104201882B (en) | 2017-04-12 |
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| CN201410415311.4A Active CN104201882B (en) | 2014-08-20 | 2014-08-20 | Non-isolated voltage-stabilization current-sharing circuit and power supply system |
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| WO (1) | WO2016026260A1 (en) |
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|---|---|---|---|---|
| CN104201882B (en) * | 2014-08-20 | 2017-04-12 | 华为技术有限公司 | Non-isolated voltage-stabilization current-sharing circuit and power supply system |
| CN107193243A (en) * | 2016-03-15 | 2017-09-22 | 上海普锐马电子有限公司 | A kind of voltage x current real-time monitoring system for EUT power supplys |
| CN108668052B (en) * | 2017-03-31 | 2024-02-13 | 富满微电子集团股份有限公司 | Filter switching chip, filter switching circuit of camera and monitoring equipment |
| CN107509281B (en) * | 2017-09-27 | 2023-12-08 | 浙江意博高科技术有限公司 | Circuit for realizing wireless control of RGBW light source by non-isolation topology |
| CN108314146B (en) * | 2018-01-26 | 2024-01-05 | 深圳安吉尔饮水产业集团有限公司 | Reverse pole control circuit and water purifier |
| CN110299825B (en) * | 2018-03-22 | 2024-03-08 | 维谛技术有限公司 | Parallel current equalizing system for switching devices |
| CN108964432B (en) * | 2018-07-26 | 2023-09-29 | 深圳市蓝德汽车电源技术有限公司 | DCDC current control circuit of fuel cell automobile |
| CN109521828A (en) * | 2018-12-29 | 2019-03-26 | 惠州华科电器有限公司 | Linear voltage-stabilizing circuit |
| CN110176946A (en) * | 2019-01-30 | 2019-08-27 | 深圳市晟瑞科技有限公司 | A kind of relay amplification device and relay amplifier |
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|---|---|---|---|---|
| EP2221952A3 (en) * | 2009-02-18 | 2010-09-08 | Schmidhauser AG | Bidirectional direct current adjuster and system |
| CN102843028A (en) * | 2011-06-20 | 2012-12-26 | 富士电机株式会社 | Dc power supply system |
| CN102957313A (en) * | 2012-11-05 | 2013-03-06 | 华为技术有限公司 | Non-isolated direct current (DC)/DC ground wire current equalizing circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6608396B2 (en) * | 2001-12-06 | 2003-08-19 | General Motors Corporation | Electrical motor power management system |
| CN104201882B (en) * | 2014-08-20 | 2017-04-12 | 华为技术有限公司 | Non-isolated voltage-stabilization current-sharing circuit and power supply system |
-
2014
- 2014-08-20 CN CN201410415311.4A patent/CN104201882B/en active Active
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2015
- 2015-01-05 WO PCT/CN2015/070134 patent/WO2016026260A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2221952A3 (en) * | 2009-02-18 | 2010-09-08 | Schmidhauser AG | Bidirectional direct current adjuster and system |
| CN102843028A (en) * | 2011-06-20 | 2012-12-26 | 富士电机株式会社 | Dc power supply system |
| CN102957313A (en) * | 2012-11-05 | 2013-03-06 | 华为技术有限公司 | Non-isolated direct current (DC)/DC ground wire current equalizing circuit |
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| WO2016026260A1 (en) | 2016-02-25 |
| CN104201882A (en) | 2014-12-10 |
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