CN106685217A - Positive and negative power supply output control apparatus and method - Google Patents
Positive and negative power supply output control apparatus and method Download PDFInfo
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- CN106685217A CN106685217A CN201710131117.7A CN201710131117A CN106685217A CN 106685217 A CN106685217 A CN 106685217A CN 201710131117 A CN201710131117 A CN 201710131117A CN 106685217 A CN106685217 A CN 106685217A
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- electric capacity
- positive
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- negative
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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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- 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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/071—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate a negative voltage output from a positive voltage source
Abstract
The invention discloses a positive and negative power supply output control apparatus. The apparatus comprises a DC-DC power supply module, an energy storage inductor, an energy-storage and energy-discharging capacitor, a capacitor charging-discharging direction controlled bidirectional diode, a positive power supply output module, a negative power supply output module and a direct current power supply module. The positive and negative power supply output is controlled by the cut -off and conduction of a switching tube in the DC-DC power supply module, and then the positive and negative power supply output can be further realized by adopting a DC-DC chip at the same time. The control apparatus and method disclosed by the invention are flexible and simple in control modes, can lower design cost and power supply power consumption and have relatively high application and popularization prospect.
Description
Technical field
The present invention relates to power supply output field, and in particular to a kind of positive-negative power output-controlling device and method.
Background technology
At present, general existing amplifier reduces operation irregularity phenomenon to meet normal work, realizes zero input zero output
Perfect condition, will provide positive-negative power to amplifier.The mode being typically implemented has using after two groups of transformer rectifications of winding output
Respectively produce positive-negative power, realize positive-negative power respectively using two DC-DC chips, using additional one of a DC-DC chip
Transformer produces positive-negative power, two group transistors and inductance to produce positive-negative power.However, the high cost of above-mentioned design, if
Meter layout is cumbersome, and power consumption is big.
The content of the invention
Shortcoming and deficiency it is an object of the invention to overcome prior art, there is provided a kind of positive-negative power output control dress
Put, produce the power supply of generating positive and negative voltage to export simultaneously using single DC-DC power source chip, it is abundant flexibly, succinct with control model,
The advantages of reducing design cost and power supply power consumption, meets the use demand of developer.
Another object of the present invention is to provide a kind of positive-negative power output control method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of positive-negative power output-controlling device, including DC-DC power module 2, energy storage inductor L2, energy storage exoergic electric capacity
C8, capacitor charge and discharge direction controlling bilateral diode D3, positive supply output module 3, negative supply output module 4, dc source mould
Block 1；Wherein, the output end of the DC power supplier 1 connects the input and the DC-DC power source mould of the energy storage inductor L2
The input of block 2, the output end of the energy storage inductor L2 connects the input of the positive supply output module 3 and the energy storage is put
The input of energy electric capacity C8 and the input of the DC-DC power module 2, the output end of the positive supply output module 3 connect
An input and positive electricity voltage follower circuit of the DC-DC power module 2 are connect, the output end of the energy storage exoergic electric capacity C8 connects
Connect the input of the capacitor charge and discharge direction controlling bilateral diode D3, the capacitor charge and discharge direction controlling bilateral diode
The output end of D3 connects the input of the energy storage exoergic electric capacity C8 and the input of the negative supply output module 4, described negative
The input and negative voltage that the output end of power supply output module 4 connects the capacitor charge and discharge direction controlling bilateral diode D3 are defeated
Go out circuit, the output end of the DC-DC power module 2 connects the input of the energy storage exoergic electric capacity C8.
The DC-DC power module 2, including DC-DC chip ICs 1, first resistor R1, second resistance R2,3rd resistor R3,
3rd electric capacity C3, the 5th electric capacity C5；Wherein, the 4th port EN of the DC-DC chip ICs 1 connects the first resistor R1, the
Five port VCC connect the output end of the DC power supplier 1, and the 3rd port FB is used as feedback input end connection second electricity
Resistance R2, first port LX connect the energy storage exoergic electric capacity C8, second port GND ground connection；First resistor R1 one end connection
4th port EN of the DC-DC chip ICs 1, the other end connects the output end of the DC power supplier 1；The second resistance
One end of R2 connects the 3rd port FB of the DC-DC chip ICs 1, and the other end connects the positive supply output module 3；Described
One end of three resistance R3 connects the 5th electric capacity C5, other end ground connection；One end of the 5th electric capacity C5 connects the positive electricity
Source output module 3, the other end connects the 3rd resistor R3；Described 3rd electric capacity C3 one end connects the DC power supplier 1,
The other end is grounded.
The DC power supplier 1, including dc source+VCC, the first inductance L1, the first electric capacity C1, the second electric capacity C2；
One end of the first inductance L1 connects the dc source+VCC, and the other end connects the second electric capacity C2；First electricity
The one end for holding C1 connects the dc source+VCC, other end ground connection；One end connection first electricity of the second electric capacity C2
Sense L1, other end ground connection.
The negative supply output module 4, including the 9th electric capacity C9, the tenth electric capacity C10, voltage-stabiliser tube ZW1, the 5th resistance R5,
6th resistance R6；One end is connected described the after the 6th resistance R6 and the voltage-stabiliser tube ZW1, the tenth electric capacity C10 parallel connection
Five resistance R5, other end ground connection；The 6th resistance R6, voltage-stabiliser tube ZW1 and the tenth after 5th resistance R5 one end connection parallel connection
Electric capacity C10, the other end is connected the capacitor charge and discharge direction controlling bilateral diode D3 with after the 9th electric capacity parallel connection, described
One end ground connection of the 9th electric capacity C9, the other end is with to be connected the capacitor charge and discharge direction controlling after the 5th resistor coupled in parallel two-way
Diode D3.
The positive supply output module 3 includes unilateral diode D1, fuse L105, the 4th resistance R4, the 6th electric capacity C6,
7th electric capacity C7, the 11st electric capacity C11, the 12nd electric capacity C12；One end of the unilateral diode D1 connects the energy storage inductor
L2, the other end connects the fuse L105；One end of the fuse L105 connects the unilateral diode D1 and described the
Seven electric capacity C7, other end connection positive voltage output；One end of the 6th electric capacity C6 connects the 5th of the DC-DC power module 2
Electric capacity C5 and second resistance R2, other end ground connection；One end of the 7th electric capacity C7 connects the fuse L105, and the other end connects
Meet the capacitor charge and discharge direction controlling bilateral diode D3；One end connection positive voltage output of the 11st electric capacity C11, separately
One end connects the voltage-stabiliser tube ZW1；One end connection positive voltage output of the 12nd electric capacity C12, other end connection described the
Six resistance R6；One end of the 4th resistance R4 connects the positive voltage output, and the other end connects the 6th resistance R6.
The capacitor charge and discharge direction controlling is bilateral diode.
The ON-OFF state control positive-negative power output of the breaker in middle pipe of the DC-DC chip ICs 1；
When switching tube ends, the DC power supplier 1 is connected to the positive supply and exports by the energy storage inductor L2
Module 3 forms positive electricity resource loop output positive voltage and carries out charging energy-storing to the 11st electric capacity C11, meanwhile, the direct current
Power module 1 is connected to the energy storage exoergic electric capacity C8 by the energy storage inductor L2 and the capacitor charge and discharge direction controlling is double
Charging energy-storing is carried out to energy storage exoergic electric capacity C8 to diode D3, in addition, the 9th electric capacity C9 is grounded and to connect negative voltage defeated
Electric discharge can maintain negative voltage to export after going out；
When switching tube is turned on, the energy storage exoergic electric capacity C8 passes through capacitor charge and discharge direction described in switching tube grounding connection and controls
Bilateral diode D3 processed and the negative supply output module 4 form negative electricity resource loop output negative voltage and to the 9th electric capacity C9
Charging energy-storing is carried out, meanwhile, the DC power supplier 1 is connected to the DC-DC power module 2 by the energy storage inductor L2
Loop is formed after ground connection carries out charging energy-storing to energy storage inductor L2, in addition, the 11st electric capacity C11 is grounded and connects positive voltage
Discharged after output and maintain positive voltage output；
When switching tube in the DC-DC chip ICs 1 ends, positive voltage output connects institute by the DC power supplier 1
State energy storage inductor L2, the unilateral diode D1 and the fuse L105 forms loop and provides, now negative voltage output is by institute
The 9th electric capacity C9 electric discharges are stated to support；When switching tube in the DC-DC chip ICs 1 is turned on, negative voltage output is put by the energy storage
Energy electric capacity C8 connects the capacitor charge and discharge bilateral diode D3 after switching tube turns on ground connection and the 5th resistance R5 is put
Electricity is provided, and now positive voltage output is discharged by the 11st electric capacity C11 and supported；Can so realize while exporting positive negative electricity
Pressure.
The positive voltage value exported in the positive supply output module 3 feeds back to the DC-DC chip ICs 1 by real-time sampling
In, when positive voltage value is more than 1 internal reference voltage of DC-DC chip ICs, the switching tube in the DC-DC chip ICs 1 be from cut
Rotation stop state is converted into conducting state；When positive voltage value is less than 1 internal reference voltage of DC-DC chip ICs, the DC-DC chips
Switching tube in IC1 is then converted into cut-off state from conducting state.
The positive voltage output valve is adjusted by the second resistance R2,3rd resistor R3, and the negative voltage output valve is led to
Cross the voltage-stabiliser tube ZW1 adjustment.
Another object of the present invention is realized by following technical scheme：
A kind of positive-negative power output control method, comprises the steps of：
Exported using the ON-OFF state control positive-negative power of the breaker in middle pipe of DC-DC chip ICs 1：
When switching tube ends, DC power supplier 1 carries out charging energy-storing by the 11st electric capacity C11, meanwhile, dc source
Module 1 is connected to energy storage exoergic electric capacity C8 and capacitor charge and discharge direction controlling bilateral diode D3 to energy storage by energy storage inductor L2
Exoergic electric capacity C8 carries out charging energy-storing, in addition, the 9th electric capacity C9 is grounded and connects electric discharge after negative voltage is exported is able to maintain that negative electricity
Pressure output；
When switching tube is turned on, energy storage exoergic electric capacity C8 passes through switching tube grounding connection capacitor charge and discharge direction controlling two-way two
Pole pipe D3 and negative supply output module 4 form negative electricity resource loop output negative voltage and carry out charging energy-storing to the 9th electric capacity C9, together
When, DC power supplier 1 is connected to after DC-DC power module 2 is grounded by energy storage inductor L2 and forms loop to energy storage inductor L2
Charging energy-storing is carried out, in addition, the 11st electric capacity C11 is grounded and connects electric discharge maintenance positive voltage output after positive voltage output.
When switching tube in the DC-DC chip ICs 1 ends, positive voltage output connects institute by the DC power supplier 1
State energy storage inductor L2, unilateral diode D1 and fuse L105 forms loop and provides, now negative voltage output is by the described 9th electricity
Hold C9 electric discharges to support；When switching tube in the DC-DC chip ICs 1 is turned on, negative voltage is exported by the energy storage exoergic electric capacity C8
Connect the capacitor charge and discharge bilateral diode D3 and the 5th resistance R5 electric discharges after switching tube turns on ground connection to provide, now just
Voltage output is discharged by the 11st electric capacity C11 and supported；Can so realize exporting generating positive and negative voltage simultaneously.
DC-DC chips (IC1) real-time sampling feeds back the positive voltage value of output in positive supply output module (3), when just
When magnitude of voltage is more than 1 internal reference voltage of DC-DC chip ICs, the switching tube in the DC-DC chip ICs 1 is to turn from cut-off transition
Change conducting state into；When positive voltage value is less than 1 internal reference voltage of DC-DC chip ICs, opening in the DC-DC chip ICs 1
Close Guan Zecong conducting states and be converted into cut-off state.
The setting value of the positive voltage output is adjusted by second resistance R2,3rd resistor R3, the negative voltage output valve
Adjusted by voltage-stabiliser tube ZW1.
The present invention compared with prior art, with advantages below and beneficial effect：
1st, it is to be capable of achieving a DC-DC chip only to be needed in a kind of positive-negative power output-controlling device of the present invention and method
Positive and negative dual power supply is exported simultaneously, and conversion time is that 4-20 is delicate.Conversion speed is fast, reduces circuit design difficulty and cost, while
Also power supply power consumption is reduced, electromagnetic interference is reduced；More disclosure satisfy that the use demand of developer.
2nd, the generating positive and negative voltage exported in a kind of positive-negative power output-controlling device of the present invention and method can accomplish right
Claim output, can also accomplish asymmetric output.
3rd, in a kind of positive-negative power output-controlling device of the invention and method positive voltage output using sampling feedback control, control
Molding formula is flexibly succinct, and possesses the normal work input voltage of 3-50V scopes.
4th, a kind of new way has been expanded in a kind of positive-negative power output-controlling device of the invention and method：Share one
DC-DC power module, and the components such as electric capacity, inductance generation generating positive and negative voltage is combined, can extend and be extended to：Share a DC-
The functions such as additional other the circuit realiration square waves of DC power module, sine wave, sawtooth waveforms, timer.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram of positive-negative power output-controlling device.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Such as Fig. 1, a kind of positive-negative power output-controlling device, including：DC power supplier 1, DC-DC power module 2, energy storage
Inductance L2, energy storage exoergic electric capacity C8, capacitor charge and discharge direction controlling bilateral diode D3, positive supply output module 3, negative supply is defeated
Go out module 4.
The output end of the DC power supplier 1 connects the input and the DC-DC power source mould of the energy storage inductor L2
The input of block 2, the output end of the energy storage inductor L2 connects the input of the positive supply output module 3 and the energy storage is put
The input of energy electric capacity C8 and the input of the DC-DC power module 2, the output end of the positive supply output module 3 connect
An input and positive electricity voltage follower circuit of the DC-DC power module 2 are connect, the output end of the energy storage exoergic electric capacity C8 connects
Connect the input of the capacitor charge and discharge direction controlling bilateral diode D3, the capacitor charge and discharge direction controlling bilateral diode
The output end of D3 connects the input of the energy storage exoergic electric capacity C8 and the input of the negative supply output module 4, described negative
The input and negative voltage that the output end of power supply output module 4 connects the capacitor charge and discharge direction controlling bilateral diode D3 are defeated
Go out circuit, the output end of the DC-DC power module 2 connects the input of the energy storage exoergic electric capacity C8.
The DC-DC power module 2 include DC-DC chip ICs 1, first resistor R1, second resistance R2,3rd resistor R3,
3rd electric capacity C3, the 5th electric capacity C5；4th port EN of the DC-DC chip ICs 1 connects the first resistor R1, fifth port
VCC connects the output end of the DC power supplier 1, and the 3rd port FB connects the second resistance R2 as feedback input end,
First port LX connects the energy storage exoergic electric capacity C8, second port GND ground connection；First resistor R1 one end connection is described
4th port EN of DC-DC chip ICs 1, the other end connects the output end of the DC power supplier 1；The second resistance R2's
One end connects the 3rd port FB of the DC-DC chip ICs 1, and the other end connects the positive supply output module 3；3rd electricity
The one end for hindering R3 connects the 5th electric capacity C5, other end ground connection；It is defeated that one end of the 5th electric capacity C5 connects the positive supply
Go out module 3, the other end connects the 3rd resistor R3；Described 3rd electric capacity C3 one end connects the DC power supplier 1, another
End ground connection.
The DC power supplier 1 includes dc source+VCC, the first inductance L1, the first electric capacity C1, the second electric capacity C2；Institute
The one end for stating the first inductance L1 connects the dc source+VCC, and the other end connects the second electric capacity C2；First electric capacity
One end of C1 connects the dc source+VCC, other end ground connection；One end of the second electric capacity C2 connects first inductance
L1, other end ground connection.
The positive supply output module 3 includes unilateral diode D1, fuse L105, the 4th resistance R4, the 6th electric capacity C6,
7th electric capacity C7, the 11st electric capacity C11, the 12nd electric capacity C12；One end of the unilateral diode D1 connects the energy storage inductor
L2, the other end connects the fuse L105；One end of the fuse L105 connects the unilateral diode D1 and described the
Seven electric capacity C7, other end connection positive voltage output；One end of the 6th electric capacity C6 connects the of the DC-DC power module 2
Five electric capacity C5 and second resistance R2, other end ground connection；One end of the 7th electric capacity C7 connects the fuse L105, the other end
Connect the capacitor charge and discharge direction controlling bilateral diode D3；One end connection positive voltage output of the 11st electric capacity C11,
The other end connects the voltage-stabiliser tube ZW1；One end connection positive voltage output of the 12nd electric capacity C12, other end connection is described
6th resistance R6；One end of the 4th resistance R4 connects the positive voltage output, and the other end connects the 6th resistance R6.
The negative supply output module 4 includes the 9th electric capacity C9, the tenth electric capacity C10, voltage-stabiliser tube ZW1, the 5th resistance R5, the
Six resistance R6；The 6th resistance R6 is connected the described 5th with one end after the voltage-stabiliser tube ZW1, the tenth electric capacity C10 parallel connection
Resistance R5, other end ground connection；The 6th resistance R6, voltage-stabiliser tube ZW1 and the tenth electricity after 5th resistance R5 one end connection parallel connection
Hold C10, be connected the capacitor charge and discharge direction controlling bilateral diode D3 after the parallel connection of the other end and the 9th electric capacity, described the
One end ground connection of nine electric capacity C9, the other end is connected the capacitor charge and discharge direction controlling two-way two with after the 5th resistor coupled in parallel
Pole pipe D3.
A kind of positive-negative power output-controlling device shown in Fig. 1, the DC voltage+VCC inputs of the DC power supplier 1
Scope is 3-50V, is that DC-DC power module 2 provides operating voltage.In the DC-DC power module 2 in DC-DC chip ICs 1
The cut-off conducting state of switching tube controls positive-negative power to export.The specific works of device as shown in drawings of the invention are as follows：Institute
State first resistor R1 and connect the first inductance L1, the DC voltage+VCC is that the DC-DC power module 2 provides work electricity
Pressure, now, in cut-off state, the DC voltage+VCC is by the described first electricity for the switching tube in the DC-DC chip ICs 1
Sense L1, energy storage inductor L2, unilateral diode D1, fuse L105 loops output positive voltage；Meanwhile, the DC voltage+VCC leads to
Cross the first inductance L1, energy storage inductor L2, energy storage exoergic electric capacity C8, capacitor charge and discharge direction controlling bilateral diode D3 and
Be grounded this primary Ioops carries out charging energy-storing to energy storage exoergic electric capacity C8；DC voltage+the VCC by the first inductance L1,
To the 11st electric capacity after energy storage inductor L2, unilateral diode D1, fuse L105 and the 11st electric capacity C11 ground connection
C11 charging energy-storings；In addition, the 9th electric capacity C9 is grounded and connects electric discharge after negative voltage is exported can provide negative voltage output；Institute
DC voltage+VCC is stated by the first inductance L1, energy storage inductor L2, unilateral diode D1, second resistance R2, DC-DC chip
Compare with the internal reference voltage of DC-DC chip ICs 1 after being sampled to output positive voltage in real time in the 3rd port FB loops of IC1
Compared with when positive voltage output exceedes reference voltage, the switching tube in the DC-DC chip ICs 1 is converted into conducting by cut-off state
State, now the energy storage exoergic electric capacity C8 ground connection is turned on due to described switching tube, and by the 9th electricity after the parallel connection
Hold the connection such as C9, the tenth electric capacity C10, voltage-stabiliser tube ZW1, the 6th resistance R6 the 5th resistance R5 and capacitor charge and discharge direction
Control bilateral diode D3 this primary Ioops electric discharges export negative voltage and to the 9th electric capacity C9 charging energy-storings；While the direct current
Voltage+VCC is grounded back by the first port LX that the first inductance L1, energy storage inductor L2 are connected to the DC-DC chip ICs 1
Road carries out charging energy-storing to the energy storage inductor L2, is carried out after the 11st electric capacity C11 grounding connections positive voltage output in addition
Electric discharge maintains positive voltage output.When positive voltage is less than 1 internal reference voltage of DC-DC chip ICs, in the DC-DC chip ICs 1
Switching tube cut-off state is converted into by conducting state, circuit system so circulates work, accomplishes only with a DC-DC chip reality
Generating positive and negative voltage is now exported simultaneously.Wherein, the positive voltage output valve is by the second resistance R2,3rd resistor R3 and described
The decision of the internal reference voltage of DC-DC chip ICs 1, Uout+Represent the positive voltage value of output, R2And R3Second resistance and the are represented respectively
The resistance value of three resistance, UFBThe internal voltage value of DC-DC chip ICs 1 is represented, according to formula Uout+=UFB(R2+R3)/R3, it is adjustable
The size of whole second resistance and 3rd resistor is come the positive voltage value needed for selecting；The negative voltage output valve is by the voltage-stabiliser tube
ZW1 determines that negative voltage output valve is equal to the magnitude of voltage of voltage-stabiliser tube ZW1.By adjust the second resistance R2,3rd resistor R3,
Voltage-stabiliser tube ZW1 can both make generating positive and negative voltage accomplish symmetrical output, can also accomplish asymmetric output.
The invention further relates to a kind of positive-negative power output control method, a kind of the method positive-negative power above-mentioned with the present invention
Output-controlling device is corresponding, it will be appreciated that the method to realize a kind of positive-negative power output-controlling device of the invention.What it was realized
Hardware circuit diagram refers to accompanying drawing.The method is controlled just using the ON-OFF state of the breaker in middle pipe of the DC-DC chip ICs 1
Negative supply is exported：When switching tube ends, it is defeated that the DC power supplier 1 is connected to the positive supply by the energy storage inductor L2
Go out module 3 to form positive electricity resource loop output positive voltage and carry out charging energy-storing to the 11st electric capacity C11, meanwhile, it is described straight
Stream power module 1 is connected to the energy storage exoergic electric capacity C8 and the capacitor charge and discharge direction controlling by the energy storage inductor L2
Bilateral diode D3 carries out charging energy-storing to energy storage exoergic electric capacity C8, in addition, the 9th electric capacity C9 is grounded and connects negative voltage
Electric discharge can maintain negative voltage to export after output.The positive voltage value exported in the positive supply output module 3 is fed back by real-time sampling
Into the DC-DC chip ICs 1, when positive voltage value is more than 1 internal reference voltage of DC-DC chip ICs, the DC-DC chips
Switching tube in IC1 is to be converted into conducting state from cut-off transition.When switching tube is turned on, the energy storage exoergic electric capacity C8 is by opening
Close capacitor charge and discharge direction controlling bilateral diode D3 described in pipe grounding connection and the negative supply output module 4 forms negative supply
Loop exports negative voltage and carries out charging energy-storing to the 9th electric capacity C9, meanwhile, the DC power supplier 1 is by the storage
Energy inductance L2 is connected to formation loop after the DC-DC power module 2 is grounded and carries out charging energy-storing to energy storage inductor L2, in addition,
The 11st electric capacity C11 is grounded and connects electric discharge maintenance positive voltage output after positive voltage output.When positive voltage is less than DC-DC cores
During piece IC1 internal reference voltages, the switching tube in the DC-DC chip ICs 1 is converted into cut-off state, circuit system by conducting state
System so circulation work, accomplishes only to be realized exporting generating positive and negative voltage simultaneously with a DC-DC chip.
When switching tube in the DC-DC chip ICs 1 ends, positive voltage output connects institute by the DC power supplier 1
State energy storage inductor L2, the unilateral diode D1 and the fuse L105 forms loop and provides, now negative voltage output is by institute
The 9th electric capacity C9 electric discharges are stated to support；When switching tube in the DC-DC chip ICs 1 is turned on, negative voltage output is put by the energy storage
Energy electric capacity C8 connects the capacitor charge and discharge bilateral diode D3 after switching tube turns on ground connection and the 5th resistance R5 is put
Electricity is provided, and now positive voltage output is discharged by the 11st electric capacity C11 and supported.
The positive voltage output valve is adjusted by the second resistance R2,3rd resistor R3, and the negative voltage output valve is led to
Cross the voltage-stabiliser tube ZW1 adjustment.Can both make generating positive and negative voltage by adjusting the second resistance R2,3rd resistor R3, voltage-stabiliser tube ZW1
Accomplish symmetrical output, can also accomplish asymmetric output.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of positive-negative power output-controlling device, it is characterised in that：Including DC power supplier (1), DC-DC power module
(2), energy storage inductor (L2), energy storage exoergic electric capacity (C8), capacitor charge and discharge direction controlling bilateral diode (D3), positive supply output
Module (3), negative supply output module (4)；Wherein
The output end of the DC power supplier (1) connects the input and the DC-DC power source mould of the energy storage inductor (L2)
The input of block (2), the output end of the energy storage inductor (L2) connects the input of the positive supply output module (3) and described
The input of energy storage exoergic electric capacity (C8) and the input of the DC-DC power module (2), the positive supply output module
(3) output end connects an input and positive electricity voltage follower circuit of the DC-DC power module (2), the energy storage exoergic
The output end of electric capacity (C8) connects the input of the capacitor charge and discharge direction controlling bilateral diode (D3), the electric capacity charge and discharge
The output end of electric direction controlling bilateral diode (D3) connects the input and the negative supply of the energy storage exoergic electric capacity (C8)
The input of output module (4), the output end of the negative supply output module (4) connects the capacitor charge and discharge direction controlling pair
To the input and negative electricity voltage follower circuit of diode (D3), the output end of the DC-DC power module (2) connects the energy storage
The input of exoergic electric capacity (C8).
2. positive-negative power output-controlling device according to claim 1, it is characterised in that：DC-DC power module (2) bag
Include DC-DC chips (IC1), first resistor (R1), second resistance (R2), 3rd resistor (R3), the 3rd electric capacity (C3), the 5th electric capacity
(C5)；4th port (EN) of the DC-DC chips (IC1) connects the first resistor (R1), fifth port (VCC) connection institute
The output end of DC power supplier (1) is stated, the 3rd port (FB) connects the second resistance (R2), first as feedback input end
Port (LX) connects the energy storage exoergic electric capacity (C8), second port (GND) ground connection；Described first resistor (R1) one end connects institute
The 4th port (EN) of DC-DC chips (IC1) is stated, the other end connects the output end of the DC power supplier (1)；Described second
One end of resistance (R2) connects the 3rd port (FB) of the DC-DC chips (IC1), and the other end connects the positive supply output mould
Block (3)；One end of the 3rd resistor (R3) connects the 5th electric capacity (C5), other end ground connection；5th electric capacity (C5)
One end connect the positive supply output module (3), the other end connects the 3rd resistor (R3)；3rd electric capacity (C3) one
The end connection DC power supplier (1), other end ground connection.
3. positive-negative power output-controlling device according to claim 1, it is characterised in that：DC power supplier (1) bag
Include dc source (+VCC), the first inductance (L1), the first electric capacity (C1), the second electric capacity (C2)；The one of first inductance (L1)
The end connection dc source (+VCC), the other end connects the second electric capacity C2；One end connection of first electric capacity (C1)
The dc source (+VCC), other end ground connection；One end of second electric capacity (C2) connects first inductance (L1), another
End ground connection.
4. positive-negative power output-controlling device according to claim 1, it is characterised in that：The negative supply output module (4)
Including the 9th electric capacity (C9), the tenth electric capacity (C10), voltage-stabiliser tube (ZW1), the 5th resistance (R5), the 6th resistance (R6)；Described 6th
Resistance (R6) is connected the 5th resistance (R5) with one end after the voltage-stabiliser tube (ZW1), the tenth electric capacity (C10) parallel connection, separately
One end is grounded；The 6th resistance (R6), voltage-stabiliser tube (ZW1) and the tenth electric capacity after 5th resistance (R5) one end connection parallel connection
(C10), the other end is connected the capacitor charge and discharge direction controlling bilateral diode (D3) with after the 9th electric capacity (C9) parallel connection,
One end ground connection of the 9th electric capacity (C9), the other end is connected the capacitor charge and discharge side with after the 5th resistance (R5) parallel connection
To control bilateral diode (D3).
5. positive-negative power output-controlling device according to claim 1, it is characterised in that：The positive supply output module (3)
Including unilateral diode (D1), fuse (L105), the 4th resistance (R4), the 6th electric capacity (C6), the 7th electric capacity (C7), the 11st
Electric capacity (C11), the 12nd electric capacity (C12)；One end of the unilateral diode (D1) connects the energy storage inductor (L2), the other end
Connect the fuse (L105)；One end of the fuse (L105) connects the unilateral diode (D1) and the 7th electricity
Hold (C7), other end connection positive voltage output；One end of 6th electric capacity (C6) connects the DC-DC power module (2)
5th electric capacity (C5) and second resistance (R2), other end ground connection；One end of 7th electric capacity (C7) connects the fuse
(L105), the other end connects the capacitor charge and discharge direction controlling bilateral diode (D3)；The one of 11st electric capacity (C11)
End connection positive voltage output, the other end connects the voltage-stabiliser tube (ZW1)；One end connection positive electricity of the 12nd electric capacity (C12)
Pressure output, the other end connects the 6th resistance (R6)；One end of 4th resistance (R4) connects the positive voltage output, separately
One end connects the 6th resistance (R6).
6. positive-negative power output-controlling device according to claim 1, it is characterised in that：The capacitor charge and discharge direction controlling
It is bilateral diode.
7. a kind of positive-negative power output control method, it is characterised in that comprise the steps of：
Exported using the ON-OFF state control positive-negative power of DC-DC chips (IC1) breaker in middle pipe；
When switching tube ends, DC power supplier (1) carries out charging energy-storing by the 11st electric capacity (C11), meanwhile, dc source
Module (1) is connected to energy storage exoergic electric capacity (C8) and capacitor charge and discharge direction controlling bilateral diode by energy storage inductor (L2)
(D3) charging energy-storing is carried out to energy storage exoergic electric capacity (C8), in addition, the 9th electric capacity (C9) is grounded and is put after connecting negative voltage output
Electricity is able to maintain that negative voltage is exported；
When switching tube is turned on, energy storage exoergic electric capacity (C8) passes through two-way two pole of switching tube grounding connection capacitor charge and discharge direction controlling
Pipe (D3) and negative supply output module (4) form negative electricity resource loop output negative voltage and carry out charging storage to the 9th electric capacity (C9)
Can, meanwhile, DC power supplier (1) is connected to after DC-DC power module (2) is grounded by energy storage inductor (L2) and forms loop pair
Energy storage inductor (L2) carries out charging energy-storing, in addition, the 11st electric capacity (C11) is grounded and is discharging maintenance just after connecting positive voltage output
Voltage output.
8. positive-negative power output control method according to claim 7, it is characterised in that in the DC-DC chips (IC1)
When switching tube ends, positive voltage output connects the energy storage inductor (L2), unilateral diode by the DC power supplier (1)
(D1) form loop and provide with fuse (L105), now negative voltage output is discharged by the 9th electric capacity (C9) and supported；It is described
When switching tube in DC-DC chips (IC1) is turned on, negative voltage output is turned on by the energy storage exoergic electric capacity (C8) by switching tube
Connected after ground connection the capacitor charge and discharge bilateral diode (D3) and the 5th resistance (R5) electric discharge provide, now positive voltage output by
11st electric capacity (C11) electric discharge is supported.
9. positive-negative power output control method according to claim 7, it is characterised in that the DC-DC chips (IC1) are in real time
The positive voltage value of output in sampling feedback positive supply output module (3), when positive voltage value is more than the internal base of DC-DC chips (IC1)
During quasi- voltage, the switching tube in the DC-DC chips (IC1) is to be converted into conducting state from cut-off transition；When positive voltage value is low
When DC-DC chips (IC1) internal reference voltage, the switching tube in the DC-DC chips (IC1) is then converted into from conducting state
Cut-off state.
10. positive-negative power output control method according to claim 7, it is characterised in that the setting of the positive voltage output
Value is adjusted by second resistance (R2), 3rd resistor (R3), and the negative voltage output valve is adjusted by voltage-stabiliser tube (ZW1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131117.7A CN106685217A (en) | 2017-03-07 | 2017-03-07 | Positive and negative power supply output control apparatus and method |
| PCT/CN2017/115171 WO2018161663A1 (en) | 2017-03-07 | 2017-12-08 | Positive/negative power supply output control apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131117.7A CN106685217A (en) | 2017-03-07 | 2017-03-07 | Positive and negative power supply output control apparatus and method |
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| Publication Number | Publication Date |
|---|---|
| CN106685217A true CN106685217A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710131117.7A Pending CN106685217A (en) | 2017-03-07 | 2017-03-07 | Positive and negative power supply output control apparatus and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106685217A (en) |
| WO (1) | WO2018161663A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161663A1 (en) * | 2017-03-07 | 2018-09-13 | 广州龙之杰科技有限公司 | Positive/negative power supply output control apparatus and method |
| CN110289759A (en) * | 2019-06-21 | 2019-09-27 | 深圳市思榕科技有限公司 | A kind of power circuit generating negative pressure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11716027B2 (en) | 2021-11-22 | 2023-08-01 | Microsoft Technology Licensing, Llc | Dual polarity power supply device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127483A (en) * | 2006-08-18 | 2008-02-20 | 盛群半导体股份有限公司 | Power supplier for field emission display |
| CN103280967A (en) * | 2013-05-29 | 2013-09-04 | 成都芯源系统有限公司 | Charge pump and method for enabling negative output voltage of charge pump to follow positive output voltage |
| CN104967306A (en) * | 2015-06-10 | 2015-10-07 | 上海鼎讯电子有限公司 | Voltage conversion circuit |
| CN206673830U (en) * | 2017-03-07 | 2017-11-24 | 广州龙之杰科技有限公司 | A kind of positive-negative power output-controlling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685217A (en) * | 2017-03-07 | 2017-05-17 | 广州龙之杰科技有限公司 | Positive and negative power supply output control apparatus and method |
-
2017
- 2017-03-07 CN CN201710131117.7A patent/CN106685217A/en active Pending
- 2017-12-08 WO PCT/CN2017/115171 patent/WO2018161663A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127483A (en) * | 2006-08-18 | 2008-02-20 | 盛群半导体股份有限公司 | Power supplier for field emission display |
| CN103280967A (en) * | 2013-05-29 | 2013-09-04 | 成都芯源系统有限公司 | Charge pump and method for enabling negative output voltage of charge pump to follow positive output voltage |
| CN104967306A (en) * | 2015-06-10 | 2015-10-07 | 上海鼎讯电子有限公司 | Voltage conversion circuit |
| CN206673830U (en) * | 2017-03-07 | 2017-11-24 | 广州龙之杰科技有限公司 | A kind of positive-negative power output-controlling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161663A1 (en) * | 2017-03-07 | 2018-09-13 | 广州龙之杰科技有限公司 | Positive/negative power supply output control apparatus and method |
| CN110289759A (en) * | 2019-06-21 | 2019-09-27 | 深圳市思榕科技有限公司 | A kind of power circuit generating negative pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018161663A1 (en) | 2018-09-13 |
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