CN102118057A - DC UPS circuit with integrated charge-discharge circuit - Google Patents
DC UPS circuit with integrated charge-discharge circuit Download PDFInfo
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- CN102118057A CN102118057A CN2010100021207A CN201010002120A CN102118057A CN 102118057 A CN102118057 A CN 102118057A CN 2010100021207 A CN2010100021207 A CN 2010100021207A CN 201010002120 A CN201010002120 A CN 201010002120A CN 102118057 A CN102118057 A CN 102118057A
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Abstract
The invention relates to a DC UPS (uninterrupted power supply) circuit with an integrated charge-discharge circuit. The DC UPS circuit comprises an AC-DC conversion circuit, an energy storage unit, a first path switch circuit and a second path switch circuit, the integrated charge-discharge circuit and an operation control unit, wherein the input and output terminals of integrated charge-discharge circuit are connected with the first path switch circuit and the second path switch circuit respectively and used for enabling the energy storage unit to charge or discharge electricity. When input power is abnormal, the input and the output terminals of the integrated charge-discharge circuit are correspondingly connected with the energy storage unit and a power-supply output terminal respectively, so as to enable electricity discharged by the energy storage unit to be transmitted to the power-supply output terminal through the integrated charge-discharge circuit; and when the input power is normal, input and output terminals of the integrated charge-discharge circuit are correspondingly connected with the power-supply output terminal and the energy storage unit respectively, so as to enable the integrated charge-discharge circuit to charge the energy storage unit. The DC UPS circuit has the advantages of smaller volume, less spare parts, lower complexity of the circuit, lower manufacturing cost and the like.
Description
Technical field
The present invention relates to a kind of power circuit, relate in particular to a kind of have the integrated DC UPS circuit that charges and discharge circuit (Uninterruptible power supply, UPS).
Background technology
Along with the fast development of information industry and high-tech industry, most precision electronic device and equipment need rely on high-quality power supply supply and keep normal operation.In various supply power modes, uninterruptable power supply is except can guaranteeing that power supply can not be interrupted, the high-quality power supply can also be provided, so uninterruptable power supply has become a kind of preferred plan that the high-quality power supply is provided now, be widely used in network communication equipment, data center (Data center) and some important information equipment at present.
DC-to-DC change-over circuit (DC-DC converter circuit) when the tradition uninterruptable power supply has a charging circuit (charge circuit) with a backup electric power, can be when the just often traditional uninterruptable power supply of civil power by charging circuit to battery charge, this moment, the DC-to-DC change-over circuit can be out of service.Otherwise the tradition uninterruptable power supply can utilize the magnitude of voltage of DC-to-DC change-over circuit with battery when civil power interrupts, and for example 11 volts (V) is converted to the load voltage value of equipment, and for example 12 volts, this moment, charging circuit can be out of service.
Hence one can see that, the tradition uninterruptable power supply need adopt charging circuit and these two independent circuits of DC-to-DC change-over circuit, make battery respectively at normal charging and the discharge when interrupting of civil power, cause uninterruptable power supply to have bigger volume, more number of parts, higher circuit complexity and higher manufacturing cost.Also because charging circuit and DC-to-DC change-over circuit not can with the time move, so the circuit utilization rate of uninterruptable power supply is lower.
Therefore, how to develop a kind of integrated DC UPS circuit that charges and discharge circuit of having of above-mentioned prior art defective that improves, real problem for the correlative technology field technical staff solution that presses at present.
Summary of the invention
The object of the present invention is to provide a kind of integrated DC UPS circuit that charges and discharge circuit that has, adopt the single integrated circuit that charges and discharge to make energy-storage units charging and discharge when normal and unusual respectively at the input power supply, the volume of the integrated DC UPS circuit that charges and discharge circuit is less, number of parts is less, circuit complexity is lower, manufacturing cost is lower and the circuit utilization rate is higher so that this has.In addition,, when charging, can make to have the integrated operational efficiency lifting that charges and discharge the DC UPS circuit of circuit, on the other hand, when discharge, can increase the power-on time of energy-storage units compared to traditional DC UPS circuit.
For reaching above-mentioned purpose, of the present invention one than broad sense embodiment for a kind of integrated DC UPS circuit that charges and discharge circuit that has is provided, in order to receive the input power supply and to provide continual dc output power at the power supply output, it comprises: the AC-DC change-over circuit is connected in power supply output contact together; Energy-storage units is in order to store electrical energy; The first via is directly switched circuit, is connected in power supply output and energy-storage units; The second path commutation circuit is connected in energy-storage units and power supply output; The integrated circuit that charges and discharge, integrated input that charges and discharge circuit and output are connected to the first via and directly switch the circuit and the second path commutation circuit, with so that the energy-storage units charge or discharge; And operation control unit.Wherein, when input power source abnormality, the operation control unit control first via is directly switched the circuit and the second path commutation circuit toggle path, make the integrated input that charges and discharge circuit be connected in energy-storage units and power supply output, and the electric energy of energy-storage units discharge is sent to the power supply output via the integrated circuit that charges and discharge with output is corresponding respectively; And when importing power supply just often, the operation control unit control first via is directly switched the circuit and the second path commutation circuit toggle path, make the integrated input that charges and discharge circuit be connected in power supply output and energy-storage units, and the integrated circuit that charges and discharge charge to energy-storage units with output is corresponding respectively.
For reaching above-mentioned purpose, of the present invention another than broad sense embodiment for a kind of integrated DC UPS circuit that charges and discharge circuit that has is provided, with so that dc suppling equipment to supply power to the dc output power of electronic equipment uninterrupted, it comprises: energy-storage units, contact connects together, in order to store electrical energy; The first via is directly switched circuit, is connected in the feeder ear and the energy-storage units of dc suppling equipment; The second path commutation circuit is connected in the feeder ear of energy-storage units and dc suppling equipment; The integrated circuit that charges and discharge, integrated input that charges and discharge circuit and output are connected to the first via and directly switch the circuit and the second path commutation circuit, with so that the energy-storage units charge or discharge; And operation control unit; Wherein, when dc output power is unusual, the operation control unit control first via is directly switched the circuit and the second path commutation circuit toggle path, make the integrated input and the corresponding respectively feeder ear that is connected in energy-storage units and dc suppling equipment of output that charges and discharge circuit, and the electric energy of energy-storage units discharge charges and discharge the feeder ear that circuit is sent to dc suppling equipment via integrated; And work as dc output power just often, the operation control unit control first via is directly switched the circuit and the second path commutation circuit toggle path, make the integrated input and corresponding respectively feeder ear and the energy-storage units that is connected in dc suppling equipment of output that charges and discharge circuit, and the integrated circuit that charges and discharge charges to energy-storage units.
Beneficial effect of the present invention is, of the present invention have an integrated DC UPS circuit that charges and discharge circuit, and volume is less, number of parts is less, circuit complexity is lower and manufacturing cost is lower, and the circuit utilization rate is higher.In addition, operational mode has increased the less conduction mode of energy loss, and operational efficiency promotes when charging, can increase the power-on time of energy-storage units when discharge.When being applied to the occasion of direct current supply, for example data center or communication equipment can omit the AC-DC change-over circuit, and are directly connected in the feeder ear of dc suppling equipment, realize the reliability of electronic equipment operation originally with lower one-tenth.
Description of drawings
Fig. 1: the schematic diagram that charges and discharge the DC UPS circuit of circuit for having of preferred embodiment of the present invention is integrated.
Fig. 2: the schematic diagram that charges and discharge the DC UPS circuit of circuit for having of another preferred embodiment of the present invention is integrated.
Wherein, description of reference numerals is as follows:
1: have the integrated DC UPS circuit that charges and discharge circuit
11: AC-DC change-over circuit 12: the first via is directly switched circuit
13: the second path commutation circuit 12a, 13a: first contact
12b, 13b: the second contact 12c, 13c: the 3rd contact
14: the integrated circuit 141 that charges and discharge: charge and discharge control circuit
14a: the integrated input that charges and discharge circuit
14b: the integrated output that charges and discharge circuit
15: energy-storage units 16: the operation control unit
162: testing circuit 161: operation controller
2: dc suppling equipment 3: data center
L
1: the first inductance D
1: first diode
Q
1: the first switch C
1: first electric capacity
C
o: output capacitance R
s: detect resistance
COM: be total to contact K: power supply output
K
1: the first link V
b: the magnitude of voltage of energy-storage units
V
In: input power supply V
o: dc output power
V
s: detect voltage
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the following description.Be understood that the present invention can have various variations on different embodiment, its neither departing from the scope of the present invention, and explanation wherein and be shown in the usefulness that ought explain in essence, but not in order to restriction the present invention.
See also Fig. 1, it is the integrated schematic diagram that charges and discharge the DC UPS circuit of circuit that has of preferred embodiment of the present invention.As shown in Figure 1, have the integrated DC UPS circuit 1 that charges and discharge circuit and receive input power supply V
InAnd provide continual dc output power V at power supply output K
o, it comprises: AC-DC change-over circuit 11, the first via are directly switched circuit 12, the second path commutation circuit 13, integrated circuit 14, energy-storage units 15, operation control unit 16 and the output capacitance C of charging and discharging
oWherein, AC-DC change-over circuit 11 is connected in the second contact 12b and power supply output K that the first via is directly switched circuit 12, in order to the input power supply V that will exchange
InBe converted to dc output power V
o, for example 110 volts ac voltage is converted to 12 volts dc voltage value.And output capacitance C
oBe connected in power supply output K together between the contact COM.
In present embodiment, the first via is directly switched circuit 12 and the second path commutation circuit 13 by relay (Relay), bipolar junction transistor (Bipolar Junction Transistor, BJT) or mos field effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) realize, but not as limit.The first via is directly switched the first contact 12a of circuit 12 and the first contact 13a of the second path commutation circuit 13 is connected to integrated input 14a and the output 14b that charges and discharge circuit 14, the first via is directly switched the second contact 12b of circuit 12 and the second contact 13b of the second path commutation circuit 13 is connected in power supply output K, and the first via is directly switched the 3rd contact 12c of circuit 12 and the 3rd contact 13c of the second path commutation circuit 13 is connected in energy-storage units 15.
The integrated circuit 14 that charges and discharge can also be sent to power supply output K via the integrated circuit 14 that charges and discharge with the electric energy of energy-storage units 15 discharges except can charging to energy-storage units 15.In present embodiment, the integrated circuit 14 that charges and discharge comprises: charge and discharge control circuit 141, first inductance L
1, the first diode D
1, the first switch Q
1, first capacitor C
1And detection resistance R
s, wherein, first inductance L
1Be connected in the integrated input 14a and the first link K that charges and discharge circuit 14
1Between, the first diode D
1Be connected in the first link K
1And between the integrated output 14b that charges and discharge circuit 14, first capacitor C
1Be connected in the integrated output 14b that charges and discharge circuit 14 together between the contact COM, the first switch Q
1With the detection resistance R
sAt the first link K
1Be connected in series between the contact COM together.Charge and discharge control circuit 141 and be connected to the detection resistance R
sAn end, the first switch Q
1Control end with the operation control unit 16 operation controller 161, in order to control the first switch Q
1Conducting or end.As the first switch Q
1During conducting, flow through the detection resistance R
sElectric current can corresponding produce and detect voltage V
s, charge and discharge control circuit 141 then according to detecting voltage V
sAdjust the first switch Q
1The duty ratio of conducting (Duty cycle) size.Wherein, the first switch Q
1Can be but be not defined as bipolar junction transistor or mos field effect transistor.
In present embodiment, operation control unit 16 comprises testing circuit 162 and operation controller 161, and wherein testing circuit 162 is connected to the input and the operation controller 161 of AC-DC change-over circuit 11, in order to detect input power supply V
InThe state of (for example civil power).Operation controller 161 can be but not be limited to microprocessor (Micro Controller Unit, MCU) or digital signal processor (Digital SignalProcessors, DSP), it is connected to testing circuit 162, the first via and directly switches the control end of the control end of circuit 12, the second path commutation circuit 13, charges and discharge control circuit 141 and energy-storage units 15, has integrated DC UPS circuit 1 operation that charges and discharge circuit in order to control.
As this input power supply V
InWhen unusual, for example interrupt, magnitude of voltage is low excessively, magnitude of voltage is too high, underfrequency or frequency are too high, the dc output power V that AC-DC change-over circuit 11 can't the output rated voltage value
oOperation controller 161 can the control first via directly switch circuit 12 and the second path commutation circuit, 13 toggle paths, the first via is directly switched between the first contact 12a of circuit 12 and the 3rd contact 12c and is formed conducting path, form conducting path between the first contact 13a of the second path commutation circuit 13 and the second contact 13b, make the integrated input 14a and corresponding respectively energy-storage units 15 and the power supply output K of being connected in of output 14b that charges and discharge circuit 14, the electric energy of energy-storage units 15 discharges just can be sent to power supply output K via the integrated circuit 14 that charges and discharge whereby.
In present embodiment, as this input power supply V
InWhen unusual, operation controller 161 is can control integrated to charge and discharge circuit 14 operations and makes the electric energy of energy-storage units 15 discharges be sent to power supply output K via the integrated circuit 14 that charges and discharge, and wherein operation controller 161 also can be according to the magnitude of voltage V of energy-storage units 15
bDetermine the integrated operational mode that charges and discharge circuit 14.
In present embodiment, in discharge process, as the magnitude of voltage V of energy-storage units 15
bGreater than dc output power V
oLoad voltage value V
kThe time (V
b＞V
k), the integrated circuit 14 that charges and discharge of operation controller 161 controls is with conduction mode (pass-through mode) operation, the first switch Q
1End, the integrated circuit 14 that charges and discharge is not with the magnitude of voltage V of energy-storage units 15
bBoost, but direct magnitude of voltage V with energy-storage units 15
bThe 3rd contact 12c, the first via of directly switching circuit 12 via the first via directly switched the first contact 12a of circuit 12, integrated input 14a, first inductance L that charges and discharge circuit 14 in regular turn
1, the first diode D
1, the integrated output 14b that charges and discharge circuit 14, the first contact 13a of the second path commutation circuit 13 and the second contact 13b of the second path commutation circuit 13 be sent to power supply output K, make the electric energy of energy-storage units 15 discharges be sent to power supply output K, dc output power V at this moment via the integrated circuit 14 that charges and discharge
oMagnitude of voltage approximate the magnitude of voltage V of energy-storage units 15
b(V
o=V
b) (the magnitude of voltage V of as many as energy-storage units 15
bSubtract the first diode D
10.7 volt of (V of forward conduction magnitude of voltage
o=V
b-0.7)).The discharge that continues is as the magnitude of voltage V of energy-storage units 15
bBe less than or equal to the first critical voltage value V
T1(V
b＜=V
T1) time, the integrated circuit 14 that charges and discharge of operation controller 161 controls charges and discharge the control circuit 141 controls first switch Q with pulse-width-modulated mode (PWM mode) operation
1With the mode conducting of pulse width modulation with end the integrated magnitude of voltage V that charges and discharge circuit 14 with energy-storage units 15
bBe resent to power supply output K after boosting, at this moment dc output power V
oMagnitude of voltage greater than the magnitude of voltage V of energy-storage units 15
b(V
o＞V
b).
For example, as this input power supply V
InUnusually, and the magnitude of voltage V of energy-storage units 15
bWith dc output power V
oLoad voltage value V
kBe respectively 13 volts of (V with 12 volts the time
b＞V
k), the integrated circuit 14 that charges and discharge of operation controller 161 controls is with conduction mode operation, the first switch Q
1End, the integrated circuit 14 that charges and discharge is not with the magnitude of voltage V of energy-storage units 15
bBoost, but direct magnitude of voltage V with energy-storage units 15
bDirectly be sent to power supply output K via the integrated circuit 14 that charges and discharge in regular turn, make the electric energy of energy-storage units 15 discharges be sent to power supply output K, dc output power V at this moment via the integrated circuit 14 that charges and discharge
oMagnitude of voltage approximate 13 volts of (V
o=V
b), as many as 12.3 volts of (V
o=V
b-0.7).The discharge that continues is as the magnitude of voltage V of energy-storage units 15
bDrop to 12 volts the first critical voltage value V
T1(V
b＜=V
T1) time, the integrated circuit 14 that charges and discharge of operation controller 161 controls charges and discharge the control circuit 141 controls first switch Q with the pulse-width-modulated mode operation
1With the mode conducting of pulse width modulation with end the integrated magnitude of voltage V that charges and discharge circuit 14 with energy-storage units 15
bBe resent to power supply output K after boosting, at this moment dc output power V
oMagnitude of voltage be 12 volts of [V
o＞(V
b-0.7)].
As input power supply V
InJust often, the dc output power V of AC-DC change-over circuit 11 meeting output rated voltage values
oOperation controller 161 can the control first via directly switch circuit 12 and the second path commutation circuit, 13 toggle paths, the first via is directly switched between the first contact 12a of circuit 12 and the second contact 12b formed conducting path, form conducting path between first contact 13a of the second path commutation circuit 13 and the 3rd contact 13c, make the integrated input 14a and corresponding respectively power supply output K and the energy-storage units 15 of being connected in of output 14b that charges and discharge circuit 14.
In present embodiment, as input power supply V
InJust often, operation controller 161 can charge by the integrated 14 pairs of energy-storage units of circuit 15 that charge and discharge of control, and wherein operation controller 161 also can be according to the magnitude of voltage V of energy-storage units 15
bDetermine integratedly to charge and discharge whether circuit 14 moves in the mode of pulse width modulation and with dc output power V
oMagnitude of voltage be resent to 15 chargings of 15 pairs of energy-storage units of energy-storage units after boosting.
In present embodiment, in charging process, when energy-storage units 15 makes its magnitude of voltage V because of the storage electric weight is low
bLess than dc output power V
oMagnitude of voltage the time (V
b＜V
o), the integrated circuit 14 that charges and discharge of operation controller 161 controls is with conduction mode operation, the first switch Q
1End, the integrated circuit 14 that charges and discharge is not with dc output power V
oMagnitude of voltage boost, but directly with dc output power V
oThe second contact 12b, the first via of directly switching circuit 12 via the first via directly switched the first contact 12a of circuit 12, integrated input 14a, first inductance L that charges and discharge circuit 14 in regular turn
1, the first diode D
1, the integrated output 14b that charges and discharge circuit 14, the first contact 13a of the second path commutation circuit 13 and the 3rd contact 13c of the second path commutation circuit 13 be sent to 15 chargings of 15 pairs of energy-storage units of energy-storage units, makes the electric weight and the magnitude of voltage V of energy-storage units 15
bRise, at this moment the magnitude of voltage V of the energy-storage units 15 of charged state
bApproximate dc output power V
oMagnitude of voltage (V
b=V
o) (as many as dc output power V
oMagnitude of voltage subtract the first diode D
10.7 volt of (V of forward conduction magnitude of voltage
b=V
o-0.7)).The charging that continues is as the magnitude of voltage V of energy-storage units 15
bMore than or equal to the second critical voltage value V
T2(V
b＞=V
T2) time, the integrated circuit 14 that charges and discharge of operation controller 161 controls charges and discharge the control circuit 141 controls first switch Q with the pulse-width-modulated mode operation
1With the mode conducting of pulse width modulation with end, the integrated circuit 14 that charges and discharge is with dc output power V
oMagnitude of voltage be resent to 15 chargings of 15 pairs of energy-storage units of energy-storage units after boosting, this moment charged state the magnitude of voltage V of energy-storage units 15
bGreater than dc output power V
oMagnitude of voltage (V
b＞V
o).
For example, as input power supply V
InNormally, and the magnitude of voltage V of energy-storage units 15
bWith dc output power V
oMagnitude of voltage be respectively 11 volts of (V with 12 volts the time
b＜V
o), the integrated circuit 14 that charges and discharge of operation controller 161 controls is with the conduction mode operation, and the first switch Q1 ends, and the integrated circuit 14 that charges and discharge is not with dc output power V
oMagnitude of voltage boost, but directly with dc output power V
oDirectly be sent to 15 chargings of 15 pairs of energy-storage units of energy-storage units, the magnitude of voltage V of the energy-storage units 15 of charged state at this moment via the integrated circuit 14 that charges and discharge
bApproximate 12 volts of (V
b=V
o), as many as 11.3 volts of (V
b=V
o-0.7).The charging that continues is as the magnitude of voltage V of energy-storage units 15
bRise to 12 volts the second critical voltage value V
T2The time (V
b＞=V
T2), the integrated circuit 14 that charges and discharge of operation controller 161 controls charges and discharge the control circuit 141 controls first switch Q with the pulse-width-modulated mode operation
1With the mode conducting of pulse width modulation with end, the integrated circuit 14 that charges and discharge is with dc output power V
oMagnitude of voltage be resent to 15 chargings of 15 pairs of energy-storage units of energy-storage units after boosting, this moment charged state the magnitude of voltage V of energy-storage units 15
bBe 13.7 volts of (V
b＞V
o).
See also Fig. 2 and cooperate Fig. 1, wherein Fig. 2 is the integrated schematic diagram that charges and discharge the DC UPS circuit of circuit that has of another preferred embodiment of the present invention.Fig. 2 and Fig. 1 difference are that the integrated DC UPS circuit 1 that charges and discharge circuit of having of Fig. 2 does not comprise AC-DC change-over circuit 11, and the testing circuit 162 of operation control unit 16 is connected to the feeder ear and the operation controller 161 of dc suppling equipment 2, in order to detect the dc output power V that dc suppling equipment 2 provides
oState; Another difference is in the feeder ear that the second contact 13b that directly switches the second contact 12b of circuit 12 and the second path commutation circuit 13 in the first via of Fig. 2 is connected in dc suppling equipment 2.
As shown in Figure 2, in present embodiment, dc suppling equipment 2 directly provides dc output power V
o(also can be other electronic equipments to data center 3, communication equipment for example), have the integrated DC UPS circuit 1 that charges and discharge circuit and then be directly connected in the feeder ear of dc suppling equipment 2, in order to the dc output power V that provides according to dc suppling equipment 2
oState, make energy-storage units 15 discharge and the feeder ear of electric energy to dc suppling equipment 2 be provided, or receive dc output power V
oElectric energy to energy-storage units 15 charging.
In present embodiment, testing circuit 162 is in order to detect dc output power V
oState.As dc output power V
oWhen unusual, dc suppling equipment 2 can't provide the dc output power V of load voltage value
o, operation controller 161 can be judged dc output power V by testing circuit 162
oBe abnormality, and the corresponding control first via is directly switched circuit 12 and the second path commutation circuit, 13 toggle paths, the first via is directly switched between the first contact 12a of circuit 12 and the 3rd contact 12c formed conducting path, and form conducting path between the first contact 13a of the second path commutation circuit 13 and the second contact 13b, at this moment, integrated input 14a that charges and discharge circuit 14 and output 14b be corresponding respectively to be connected in the feeder ear of energy-storage units 15 and dc suppling equipment 2, and the electric energy of energy-storage units 15 discharges just can charge and discharge the feeder ear that circuit 14 is sent to dc suppling equipment 2 via integrated whereby.
As dc output power V
oWhen unusual, operation controller 161 can be judged dc output power V by testing circuit 162
oBe normal condition, and corresponding control is integrated charges and discharge electric energy that circuit 14 operations make energy-storage units 15 discharges and charge and discharge the feeder ear that circuit 14 is sent to dc suppling equipment 2 via integrated, at this moment, operation controller 161 also can be according to the magnitude of voltage V of energy-storage units 15
bDetermine the integrated operational mode that charges and discharge circuit 14.
In discharge process, as the magnitude of voltage V of energy-storage units 15
bGreater than dc output power V
oLoad voltage value V
kThe time (V
b＞V
k), operation controller 161 can move the first switch Q by the integrated circuit 14 that charges and discharge of control with conduction mode
1End, the integrated circuit 14 that charges and discharge is not with the magnitude of voltage V of energy-storage units 15
bBoost, but direct magnitude of voltage V with energy-storage units 15
bThe 3rd contact 12c, the first via of directly switching circuit 12 via the first via directly switched the first contact 12a of circuit 12, integrated input 14a, first inductance L that charges and discharge circuit 14 in regular turn
1, the first diode D
1, the first contact 13a of the integrated output 14b that charges and discharge circuit 14, the second path commutation circuit 13 and the second path commutation circuit 13 the second contact 13b be sent to the feeder ear of dc suppling equipment 2, the electric energy that makes energy-storage units 15 discharges is via the integrated feeder ear that circuit 14 is sent to dc suppling equipment 2, the dc output power V at this moment of charging and discharging
oMagnitude of voltage approximate the magnitude of voltage V of energy-storage units 15
b(V
o=V
b) (the magnitude of voltage V of as many as energy-storage units 15
bSubtract the first diode D
10.7 volt of (V of forward conduction magnitude of voltage
o=V
b-0.7)).
The discharge that continues is as the magnitude of voltage V of energy-storage units 15
bBe less than or equal to the first critical voltage value V
T1(V
b＜=V
T1) time, operation controller 161 can move with pulse-width-modulated mode by the integrated circuit 14 that charges and discharge of control, and charging and discharging control circuit 141 can the control first switch Q
1With the mode conducting of pulse width modulation with end the integrated magnitude of voltage V that charges and discharge circuit 14 with energy-storage units 15
bBe resent to the feeder ear of dc suppling equipment 2 after boosting, at this moment dc output power V
oMagnitude of voltage greater than the magnitude of voltage V of energy-storage units 15
b(V
o＞V
b).
In sum, of the present invention have an integrated DC UPS circuit that charges and discharge circuit, adopt the single integrated circuit that charges and discharge to make energy-storage units charging and discharge when normal and unusual respectively at the input power supply, therefore this volume with integrated DC UPS circuit that charges and discharge circuit is less, number of parts is less, circuit complexity is lower and manufacturing cost is lower, the wherein integrated circuit that charges and discharge is except can be in the input power supply just often to the energy-storage units charging, the electric energy that can also when input power source abnormality energy-storage units be discharged is sent to the power supply output via the integrated circuit that charges and discharge, so its circuit utilization rate is higher.In addition, the integrated circuit that charges and discharge is when charge and discharge, the operation control unit is conduction mode or pulse-width-modulated mode according to the integrated operational mode that charges and discharge circuit of magnitude of voltage decision of energy-storage units, be different from traditional circuit, operational mode has increased the less conduction mode of energy loss, when charging, can make and have the integrated operational efficiency lifting that charges and discharge the DC UPS circuit of circuit, on the other hand, when discharge, can increase the power-on time of energy-storage units.When being applied to the occasion of direct current supply, for example data center or communication equipment, of the present invention have the integrated DC UPS circuit that charges and discharge circuit and can omit AC-DC change-over circuit 11, and be directly connected in the feeder ear of dc suppling equipment 2, realized the reliability of electronic equipment operation originally with lower one-tenth.
Those skilled in the art should recognize change and the retouching of being done under the situation that does not break away from the appended scope and spirit of the present invention that claim disclosed of the present invention, all belong within the protection range of claim of the present invention.
Claims (21)
1. one kind has the integrated DC UPS circuit that charges and discharge circuit, and in order to receive an input power supply and to provide a continual direct current out-put supply at a power supply output, it comprises:
One AC-DC change-over circuit is connected in a power supply output and has contact altogether;
One energy-storage units is in order to store electrical energy;
One first via is directly switched circuit, is connected in this power supply output and this energy-storage units;
One second path commutation circuit is connected in this energy-storage units and this power supply output;
The one integrated circuit that charges and discharge, this is integrated to charge and discharge the input of circuit and output and is connected to this first via and directly switches circuit and this second path commutation circuit, with so that these energy-storage units charge or discharge; And
One operation control unit;
Wherein, when this input power source abnormality, this operation control unit is controlled this first via and is directly switched circuit and this second path commutation circuit toggle path, make this integrated input and corresponding respectively this energy-storage units and this power supply output of being connected in of output that charges and discharge circuit, and the electric energy of this energy-storage units discharge is sent to this power supply output via this integrated circuit that charges and discharge; And work as this input power supply just often, this operation control unit is controlled this first via and is directly switched circuit and this second path commutation circuit toggle path, make this integrated input and corresponding respectively this power supply output and this energy-storage units of being connected in of output that charges and discharge circuit, and this integrated circuit that charges and discharge is to this energy-storage units charging.
2. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, this operation control unit determines that according to the magnitude of voltage of this energy-storage units this integrated operational mode that charges and discharge circuit is a pulse-width-modulated mode or a conduction mode.
3. as claimed in claim 2 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, when the magnitude of voltage of this energy-storage units during greater than the load voltage value of this dc output power, the control of this operation control unit should integratedly charge and discharge circuit and move with this conduction mode, directly the magnitude of voltage of this energy-storage units is sent to this power supply output via this integrated circuit that charges and discharge.
4. as claimed in claim 3 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, when the magnitude of voltage of this energy-storage units is less than or equal to one first critical voltage value, the control of this operation control unit should integratedly charge and discharge circuit and move with this pulse-width-modulated mode, made this integrated charging and discharging be resent to this power supply output after circuit boosts the magnitude of voltage of this energy-storage units.
5. as claimed in claim 2 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, this operation control unit determines this integrated charging and discharging to be resent to this energy-storage units to this energy-storage units charging after whether circuit boosts the magnitude of voltage of this dc output power with this pulse-width-modulated mode operation according to the magnitude of voltage of this energy-storage units.
6. as claimed in claim 5 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, when the magnitude of voltage of this energy-storage units during less than the magnitude of voltage of this dc output power, this integrated circuit that charges and discharge of operation control unit control is with this conduction mode operation, directly this dc output power is sent to this energy-storage units to this energy-storage units charging via this integrated circuit that charges and discharge.
7. as claimed in claim 6 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, when the magnitude of voltage of this energy-storage units during more than or equal to one second critical voltage value, the control of this operation control unit should integratedly charge and discharge circuit with this pulse-width-modulated mode operation, made this integrated charging and discharging be resent to this energy-storage units after circuit boosts the magnitude of voltage of this dc output power this energy-storage units is charged.
8. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, also comprises an output capacitance, is connected in this power supply output and altogether between the contact.
9. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this first via directly switches circuit and this second path commutation circuit is realized by relay, bipolar junction transistor or mos field effect transistor.
10. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this operation control unit comprises:
One testing circuit is connected in the input of this AC-DC change-over circuit, in order to detect the state of this input power supply; And
One operation controller, be connected in this testing circuit, this first via and directly switch control end, the control end of this second path commutation circuit, this integrated circuit and this energy-storage units of charging and discharging of circuit, have the integrated DC UPS circuit operation that charges and discharge circuit in order to control this.
11. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this operation controller is microprocessor or digital signal processor.
12. as claimed in claim 1 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this integrated circuit that charges and discharge comprises:
One first inductance is connected between this integrated input and one first link that charges and discharge circuit;
One first diode is connected between the integrated output that charges and discharge circuit of this first link and this;
One first electric capacity is connected in this integrated output that charges and discharge circuit and altogether between the contact;
One detects resistance;
One first switch, this first switch and this detection resistance are connected in series between contact altogether at this first link and this; And
One charges and discharge control circuit, is connected in an end of this detection resistance, control end and this operation control unit of this first switch, in order to control this first switch conduction or to end;
Wherein when this first switch conduction, the corresponding generation one of electric current of flowing through this detection resistance detects voltage.
13. as claimed in claim 12 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this charges and discharge control circuit is adjusted this first switch conduction according to this detection voltage duty ratio size.
14. as claimed in claim 12 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that this first switch is bipolar junction transistor or mos field effect transistor.
15. one kind has the integrated DC UPS circuit that charges and discharge circuit, with to supply power to a direct current out-put supply of an electronic equipment uninterrupted so that flow power supply unit always, it comprises:
One energy-storage units is connected with contact altogether, in order to store electrical energy;
One first via is directly switched circuit, is connected in feeder ear and this energy-storage units of this dc suppling equipment;
One second path commutation circuit is connected in the feeder ear of this energy-storage units and this dc suppling equipment;
The one integrated circuit that charges and discharge, this is integrated to charge and discharge the input of circuit and output and is connected to this first via and directly switches circuit and this second path commutation circuit, with so that these energy-storage units charge or discharge; And
One operation control unit;
Wherein, when this dc output power is unusual, this operation control unit is controlled this first via and is directly switched circuit and this second path commutation circuit toggle path, make this integrated input and the corresponding respectively feeder ear that is connected in this energy-storage units and this dc suppling equipment of output that charges and discharge circuit, and the electric energy of this energy-storage units discharge integratedly charges and discharge the feeder ear that circuit is sent to this dc suppling equipment via this;
And work as this dc output power just often, this operation control unit is controlled this first via and is directly switched circuit and this second path commutation circuit toggle path, make this integrated input and corresponding respectively feeder ear and this energy-storage units that is connected in this dc suppling equipment of output that charges and discharge circuit, and this integrated circuit that charges and discharge is to this energy-storage units charging.
16. as claimed in claim 15 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, this operation control unit determines that according to the magnitude of voltage of this energy-storage units this integrated operational mode that charges and discharge circuit is a pulse-width-modulated mode or a conduction mode.
17. as claimed in claim 16 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, when the magnitude of voltage of this energy-storage units during greater than the load voltage value of this dc output power, the control of this operation control unit should integratedly charge and discharge circuit and move with this conduction mode, directly the magnitude of voltage of this energy-storage units is is integratedly charged and discharged the feeder ear that circuit is sent to this dc suppling equipment via this.
18. as claimed in claim 17 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in discharge process, when the magnitude of voltage of this energy-storage units is less than or equal to one first critical voltage value, the control of this operation control unit should integratedly charge and discharge circuit and move with this pulse-width-modulated mode, made this integrated feeder ear that is resent to this dc suppling equipment after circuit boosts the magnitude of voltage of this energy-storage units that charges and discharge.
19. as claimed in claim 16 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, this operation control unit determines this integrated charging and discharging to be resent to this energy-storage units to this energy-storage units charging after whether circuit boosts the magnitude of voltage of this dc output power with this pulse-width-modulated mode operation according to the magnitude of voltage of this energy-storage units.
20. as claimed in claim 19 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, when the magnitude of voltage of this energy-storage units during less than the magnitude of voltage of this dc output power, this integrated circuit that charges and discharge of operation control unit control is with this conduction mode operation, directly this dc output power is sent to this energy-storage units to this energy-storage units charging via this integrated circuit that charges and discharge.
21. as claimed in claim 20 have an integrated DC UPS circuit that charges and discharge circuit, it is characterized in that, in charging process, when the magnitude of voltage of this energy-storage units during more than or equal to one second critical voltage value, the control of this operation control unit should integratedly charge and discharge circuit with this pulse-width-modulated mode operation, made this integrated charging and discharging be resent to this energy-storage units after circuit boosts the magnitude of voltage of this dc output power this energy-storage units is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010002120.7A CN102118057B (en) | 2010-01-05 | 2010-01-05 | DC UPS circuit with integrated charge-discharge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010002120.7A CN102118057B (en) | 2010-01-05 | 2010-01-05 | DC UPS circuit with integrated charge-discharge circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102118057A true CN102118057A (en) | 2011-07-06 |
| CN102118057B CN102118057B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010002120.7A Expired - Fee Related CN102118057B (en) | 2010-01-05 | 2010-01-05 | DC UPS circuit with integrated charge-discharge circuit |
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| Country | Link |
|---|---|
| CN (1) | CN102118057B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036300A (en) * | 2011-09-29 | 2013-04-10 | 台达电子工业股份有限公司 | Renewable energy power generation system and power generation method |
| CN106532907A (en) * | 2016-09-29 | 2017-03-22 | 佛山市基源工业有限公司 | Miniature DC UPS and application method thereof |
| CN109950939A (en) * | 2017-12-20 | 2019-06-28 | 炬芯（珠海）科技有限公司 | Charger states detection circuit, circuitry and charger states detection method |
| CN116914898A (en) * | 2023-09-14 | 2023-10-20 | 卧安科技(深圳)有限公司 | Power supply circuit and power supply method of intelligent equipment and intelligent equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567996A (en) * | 1995-01-30 | 1996-10-22 | Yu; Shih-Chung | AC power supply unit |
| CN1273705A (en) * | 1998-08-07 | 2000-11-15 | 松下电器产业株式会社 | Uninterruptible power system |
| CN2421767Y (en) * | 2000-04-25 | 2001-02-28 | 乔建忠 | Intelligent DC uninterruption power source |
| CN101563828A (en) * | 2006-12-19 | 2009-10-21 | 松下电器产业株式会社 | Power supply system, power supply control method of power supply system, power supply control program of power supply system, and computer readable recording medium having power supply control program |
-
2010
- 2010-01-05 CN CN201010002120.7A patent/CN102118057B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567996A (en) * | 1995-01-30 | 1996-10-22 | Yu; Shih-Chung | AC power supply unit |
| CN1273705A (en) * | 1998-08-07 | 2000-11-15 | 松下电器产业株式会社 | Uninterruptible power system |
| CN2421767Y (en) * | 2000-04-25 | 2001-02-28 | 乔建忠 | Intelligent DC uninterruption power source |
| CN101563828A (en) * | 2006-12-19 | 2009-10-21 | 松下电器产业株式会社 | Power supply system, power supply control method of power supply system, power supply control program of power supply system, and computer readable recording medium having power supply control program |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036300A (en) * | 2011-09-29 | 2013-04-10 | 台达电子工业股份有限公司 | Renewable energy power generation system and power generation method |
| CN106532907A (en) * | 2016-09-29 | 2017-03-22 | 佛山市基源工业有限公司 | Miniature DC UPS and application method thereof |
| CN106532907B (en) * | 2016-09-29 | 2020-09-15 | 佛山市基源工业有限公司 | Miniature direct-current UPS (uninterrupted Power supply) and application method thereof |
| CN109950939A (en) * | 2017-12-20 | 2019-06-28 | 炬芯（珠海）科技有限公司 | Charger states detection circuit, circuitry and charger states detection method |
| CN109950939B (en) * | 2017-12-20 | 2021-09-24 | 炬芯科技股份有限公司 | Charger state detection circuit, device circuit, and charger state detection method |
| CN116914898A (en) * | 2023-09-14 | 2023-10-20 | 卧安科技(深圳)有限公司 | Power supply circuit and power supply method of intelligent equipment and intelligent equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102118057B (en) | 2014-03-12 |
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