CN106507540B - A kind of electric power system and a kind of method of supplying power to - Google Patents
A kind of electric power system and a kind of method of supplying power to Download PDFInfo
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- CN106507540B CN106507540B CN201611087195.3A CN201611087195A CN106507540B CN 106507540 B CN106507540 B CN 106507540B CN 201611087195 A CN201611087195 A CN 201611087195A CN 106507540 B CN106507540 B CN 106507540B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of electric power system and a kind of method of supplying power to, the electric power system, including：Converting unit is connected with each driver respectively；Converting unit, for receiving externally input source power supply signal, the required power supply signal to be converted of at least one driver is converted to by source power supply signal, and power supply signal to be converted is exported to each driver；Driver, including：Feedback unit, for driving unit output adjustment signal；Collecting unit, for gathering the use electric signal of corresponding electrical equipment output, feedback signal is exported according to electric signal to driving unit；Driving unit, for receiving power supply signal to be converted, according to adjustment signal, determines internal reference voltage, according to feedback signal and internal reference voltage, power supply signal to be converted is converted to the corresponding required driving electric signal of electrical equipment, output driving electric signal.The present invention provides a kind of electric power system and a kind of method of supplying power to, resource can be saved.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of electric power system and a kind of method of supplying power to.
Background technology
As the fast development of science and technology, the application of various electrical equipments are more and more extensive.How various electrical equipments are given
Power supply is also increasingly taken seriously.
In the prior art, some electrical equipments need specific electric signal to work normally.General alternating current can not expire
These electrical equipments of foot, therefore, it is desirable to configure corresponding driving power for electrical equipment, driving power is installed to electrical equipment
On, alternating current is connected with driving power.For example, electrical equipment is LED (Light Emitting Diode, light emitting diode)
Lamp.LED light needs low-voltage DC to be powered, and can not be LED light power supply, it is necessary to be since common alternating current is alternating current
LED light configuration driven power supply.Alternating current is carried out decompression processing by the driving power of LED light, and then, the electric signal after decompression is changed
Into the required low-voltage DC of corresponding LED light.
As can be seen from the above description, when the prior art is power supply for electrical equipment, since all processing units are all integrated in
, it is necessary to configure all processing units for each electrical equipment in driving power, sharing for some processing units, wave can not be realized
Take resource.
The content of the invention
An embodiment of the present invention provides a kind of electric power system and a kind of method of supplying power to, resource can be saved.
In a first aspect, an embodiment of the present invention provides a kind of electric power system, including：
Converting unit and at least one driver；
The driver, including：Feedback unit, collecting unit and driving unit；
The driving unit of the converting unit respectively with each driver is connected；
The driving unit of each driver is connected with corresponding electrical equipment；
The converting unit, for receiving externally input source power supply signal, the source power supply signal is converted to described
At least one required power supply signal to be converted of driver, the power supply signal to be converted is exported to each driver；
The feedback unit, for the driving unit output adjustment signal；
The collecting unit, for gathering the use electric signal of the corresponding electrical equipment output, telecommunications is used according to described
Number to the driving unit export feedback signal；
The driving unit, for receiving the power supply signal to be converted of the converting unit output, according to described anti-
The adjustment signal of unit output is presented, determines internal reference voltage, the feedback signal exported according to the collecting unit
With the internal reference voltage, the power supply signal to be converted is converted into the corresponding required driving electricity of the electrical equipment
Signal, exports the driving electric signal, is the corresponding power supply for electrical equipment by the driving electric signal.
Further, the converting unit, including：
The alternating current, for receiving externally input alternating current, is converted to the perseverance of preset voltage value by conversion subunit
Straightening galvanic electricity, the constant voltage DC electricity is exported to each driver；
The driving unit, including：
Receiving subelement, for receiving the constant voltage DC electricity of the conversion subunit output；
Direct current conversion subunit, for the feedback signal exported according to the collecting unit and internal reference electricity
The constant voltage DC electricity, is converted to the constant-current dc electricity of the corresponding required pre-set current value of the electrical equipment by pressure.
Further, the driving unit, including：
First reference voltage determination subelement, for determining the magnitude of voltage of the adjustment signal, according to formula one, determines institute
State internal reference voltage；
Wherein, the formula one is：T=k × b,
Wherein, T is the internal reference voltage, and k is preset constant, and b is the magnitude of voltage of the adjustment signal.
Further, the driving unit, including：
Storing sub-units, for preserving the magnitude of voltage of the adjustment signal and the correspondence of reference voltage；
Second reference voltage determination subelement, it is single according to storage for determining the magnitude of voltage of the adjustment signal
The correspondence that member preserves, determines the corresponding reference voltage of magnitude of voltage of the adjustment signal, by the adjustment signal
The corresponding reference voltage of magnitude of voltage is as the internal reference voltage.
Further, the feedback unit, including：
First resistor, the first end of the first resistor are connected with the driving unit；
At least one parallel branch, each parallel branch include：Switch and connect and correspond to the switch and work as
The fixed value resistance of preceding parallel branch；
Each parallel branch is in parallel with the first resistor respectively；
Second resistance, the constant voltage of the first termination preset value size of the second resistance, the of the second resistance
Two ends are connected with the second end of the first resistor；
3rd resistor, the first end of the 3rd resistor are connected with the first end of the first resistor, the 3rd resistor
Second end ground connection.
Further, the driver, further comprises：
Light adjusting controller, the light adjusting controller are connected with the second end of the first resistor；
The light adjusting controller is used for according to exterior control, applies what outside determined to the second end of the first resistor
Dimmer voltage.
Further, the feedback unit, further comprises：
Operational amplifier, the in-phase input end of the operational amplifier is connected with the first end of the first resistor, described
The output terminal of operational amplifier is connected with the driving unit；
4th resistance, the first end of the 4th resistance are connected with the current output terminal of the electrical equipment, and the described 4th
The second end of resistance is connected with the inverting input of the operational amplifier；
First capacitance, the first end of first capacitance are connected with the output terminal of the operational amplifier, first electricity
The second end of appearance is connected with the inverting input of the operational amplifier；
Second capacitance, the first end of second capacitance are connected with the output terminal of the operational amplifier；
5th resistance, the first end of the 5th resistance are connected with the second end of second capacitance, the 5th resistance
Second end be connected with the inverting input of the operational amplifier.
Further, the driver further comprises：Output unit；
The output unit includes：
Diode, the plus earth of the diode, the anode of the diode are connected with the driving unit；
Inductance, the first end of the inductance are connected with the anode of the diode, the second end of the inductance and the use
The current input terminal of electric equipment is connected；
3rd capacitance, the first end of the 3rd capacitance are connected with the second end of the inductance, and the of the 3rd capacitance
Two ends are connected with the current output terminal of the electrical equipment；
The driving unit exports the driving electric signal to the first end of the inductance.
Further, the driving unit, including：
Copped wave handles subelement, for according to the feedback signal and the internal reference voltage, determining that copped wave pulse is wide
Degree, according to the copped wave pulse width, carries out copped wave processing to the power supply signal to be converted, generates the driving electric signal.
Further, the converting unit is deployed in distribution box.
Further, the converting unit is connected by low-voltage direct transmission line with each driver.
Second aspect, an embodiment of the present invention provides a kind of supplier of electricity of any electric power system in first aspect
Method, including：
Converting unit receives externally input source power supply signal, and the source power supply signal is converted at least one driver
Required power supply signal to be converted, the power supply signal to be converted is exported to each driver；
For each driver, the feedback unit of current drive is exported to the driving unit of the current drive
Signal is adjusted, telecommunications is used in the corresponding electrical equipment output of the collecting unit collection current drive of the current drive
Number, according to described feedback signal, the drive of the current drive are exported to the driving unit of the current drive with electric signal
Moving cell receives the power supply signal to be converted of the converting unit output, the adjustment exported according to the feedback unit
Signal, determines internal reference voltage, the feedback signal exported according to the collecting unit and the internal reference voltage, will
The power supply signal to be converted is converted to the corresponding required driving electric signal of the electrical equipment, exports the driving telecommunications
Number, it is the corresponding power supply for electrical equipment by the driving electric signal.
In embodiments of the present invention, converting unit changes externally input source power supply signal, generates each driving
The required power supply signal to be converted of device, each driver are receiving power supply signal to be converted, can be according to corresponding electricity consumption
The demand of equipment, changes out the driving electric signal of corresponding electrical equipment, and each driver passes through the driving electric signal changed out
For corresponding power supply for electrical equipment, each driver shares same converting unit, turns without configuring one for each driver
Unit is changed, saves resource.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of schematic diagram for electric power system that one embodiment of the invention provides；
Fig. 2 is a kind of schematic diagram for driver that one embodiment of the invention provides；
Fig. 3 is the schematic diagram for another driver that one embodiment of the invention provides；
Fig. 4 is the schematic diagram for another driver that one embodiment of the invention provides；
Fig. 5 is the schematic diagram for another driver that one embodiment of the invention provides；
Fig. 6 is the schematic diagram for another electric power system that one embodiment of the invention provides；
Fig. 7 is a kind of flow chart for method of supplying power to that one embodiment of the invention provides.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art
The all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
An embodiment of the present invention provides a kind of electric power system, including：
Converting unit and at least one driver；
The driver, including：Feedback unit, collecting unit and driving unit；
The driving unit of the converting unit respectively with each driver is connected；
The driving unit of each driver is connected with corresponding electrical equipment；
The converting unit, for receiving externally input source power supply signal, the source power supply signal is converted to described
At least one required power supply signal to be converted of driver, the power supply signal to be converted is exported to each driver；
The feedback unit, for the driving unit output adjustment signal；
The collecting unit, for gathering the use electric signal of the corresponding electrical equipment output, telecommunications is used according to described
Number to the driving unit export feedback signal；
The driving unit, for receiving the power supply signal to be converted of the converting unit output, according to described anti-
The adjustment signal of unit output is presented, determines internal reference voltage, the feedback signal exported according to the collecting unit
With the internal reference voltage, the power supply signal to be converted is converted into the corresponding required driving electricity of the electrical equipment
Signal, exports the driving electric signal, is the corresponding power supply for electrical equipment by the driving electric signal.
In embodiments of the present invention, converting unit changes externally input source power supply signal, generates each driving
The required power supply signal to be converted of device, each driver are receiving power supply signal to be converted, can be according to corresponding electricity consumption
The demand of equipment, changes out the driving electric signal of corresponding electrical equipment, and each driver passes through the driving electric signal changed out
For corresponding power supply for electrical equipment, each driver shares same converting unit, turns without configuring one for each driver
Unit is changed, saves resource.
In embodiments of the present invention, by feedback unit internal reference can be controlled electric for each driver, user
Pressure, and then required driving electric signal is exported by driving unit, a variety of driving electric signals can be exported by the driver,
It can meet a variety of electrical equipments with different power demands, the compatibility of the driver is higher.
As shown in Figure 1, an embodiment of the present invention provides a kind of electric power system, including：
Converting unit 101, the first driver 102 and the second driver 103；
First driver 102, including：First feedback unit 1021, the first collecting unit 1022 and the first driving unit
1023；
First feedback unit 1021 and the first collecting unit 1022 are connected with the first driving unit 1023；
Second driver 103, including：Second feedback unit 1031, the second collecting unit 1032 and the second driving unit
1033；
Second feedback unit 1031 and the second collecting unit 1032 are connected with the second driving unit 1023；
Converting unit 101 is connected with the first driving unit 1023 of the first driver 102；
Converting unit 101 is connected with the second driving unit 1033 of the second driver 103；
First driving unit 1023 of the first driver is connected with corresponding electrical equipment A；
Second driving unit 1033 of the second driver is connected with corresponding electrical equipment B.
In embodiments of the present invention, converting unit exports the power supply to be converted that the first driver and the second driver are required for
Power supply signal to be converted is converted to the required driving electric signal A of electrical equipment A, the second driver by signal, the first driver
Power supply signal to be converted is converted into the required driving electric signal B of electrical equipment B.First driver and the second driver share
One converting unit, without configuring a converting unit for each driver, saves resource.
In an embodiment of the present invention, the converting unit, including：
The alternating current, for receiving externally input alternating current, is converted to the perseverance of preset voltage value by conversion subunit
Straightening galvanic electricity, the constant voltage DC electricity is exported to each driver；
The driving unit, including：
Receiving subelement, for receiving the constant voltage DC electricity of the conversion subunit output；
Direct current conversion subunit, for the feedback signal exported according to the collecting unit and internal reference electricity
The constant voltage DC electricity, is converted to the constant-current dc electricity of the corresponding required pre-set current value of the electrical equipment by pressure.
For example, it is 48v's that the alternating current of 220v is changed out the voltage that each driver is required for by conversion subunit
Constant voltage DC electricity, each driver change out the corresponding required default electricity of electrical equipment according to the constant voltage DC electricity of the 48v
The constant-current dc electricity of flow valuve, such as：The corresponding electrical equipment A of first driver needs the constant-current dc electricity that electric current is 1A, then and the
One driver changes out the constant-current dc electricity that electric current is 1A according to the constant voltage DC electricity of 48v；The corresponding electricity consumption of second driver is set
Standby B needs the constant-current dc electricity that electric current is 2A, then the second driver changes out the perseverance that electric current is 2A according to the constant voltage DC electricity of 48v
Flow direct current.
In an embodiment of the present invention, the driving unit, including：
Copped wave handles subelement, for according to the feedback signal and the internal reference voltage, determining that copped wave pulse is wide
Degree, according to the copped wave pulse width, carries out copped wave processing to the power supply signal to be converted, generates the driving electric signal.
In embodiments of the present invention, driving unit can be chopping depressuring chip.Copped wave handle subelement by copped wave at
The reason generation required driving electric signal of electrical equipment.The currently used electricity consumption of electrical equipment can be determined by feedback signal
Whether signal matches with internal reference voltage, if it is, current copped wave pulse width is kept, if it is not, then adjustment
Current copped wave pulse width so that the driving electric signal of output matches with internal reference voltage.Adjusting current copped wave
During pulse width, according to feedback signal and internal reference voltage, when determining smaller with the current value of electric signal, it can increase
Copped wave pulse width, when determining larger with the current value of electric signal, can reduce copped wave pulse width.Wherein, increase is cut
Amplitude during pulse width can be the first predetermined amplitude, and amplitude when reducing copped wave pulse width can be the second default width
Degree.Driving unit drives electric signal to meet electrical equipment by constantly adjusting copped wave pulse width.
In an embodiment of the present invention, the converting unit is deployed in distribution box.
In embodiments of the present invention, converting unit is deployed in distribution box, defeated from distribution box to exterior each driver
Go out power supply signal to be converted.When power supply signal to be converted is low pressure electric signal, the electric signal from distribution box to electrical equipment is all
It is low pressure, for user when being operated to electrical equipment, what is touched is also low pressure electric signal, avoids user from contacting forceful electric power hair
Raw to get an electric shock, security is higher.
In an embodiment of the present invention, the converting unit passes through low-voltage direct transmission line and each driver phase
Even.
Specifically, converting unit is connected by low-voltage direct cable with each driver.When electrical equipment is LED light
When, it is possible to achieve the low pressure of lighting circuit.
In addition, in an embodiment of the present invention, converting unit, can also be directly with waiting to supply except that can be driver power supply
Electric equipment is connected, and is these equipment power supplies to be powered.Here equipment to be powered includes：Intelligent controller, dimming controlling module,
Infrared matrix sensor, smoke alarm, intelligent switch etc..These equipment to be powered can be in parallel with driver.
For example, converting unit output constant voltage DC electricity is, it is necessary to which the equipment to be powered of constant voltage DC electricity can be direct
It is connected with converting unit.
In an embodiment of the present invention, the driving unit, including：
First reference voltage determination subelement, for determining the magnitude of voltage of the adjustment signal, according to formula one, determines institute
State internal reference voltage；
Wherein, the formula one is：T=k × b,
Wherein, T is the internal reference voltage, and k is preset constant, and b is the magnitude of voltage of the adjustment signal.
In embodiments of the present invention, preset constant can be set according to the physical circuit of driver.For example, when with
When family carries out the first operation to feedback unit, user needs internal reference voltage being adjusted to M, according to the situation in the first operation
The circuit of lower driver, determines the magnitude of voltage of adjustment signal, obtains the magnitude of voltage and the relation of M, can be true by the relation
Make k.Such as：K is 0.2, that is to say, that when the magnitude of voltage for adjusting signal is 5v, internal reference voltage is 1v.Determine public affairs
After formula one, when user needs internal reference voltage being adjusted to M, user carries out feedback unit the first operation.
In an embodiment of the present invention, the driving unit, including：
Storing sub-units, for preserving the magnitude of voltage of the adjustment signal and the correspondence of reference voltage；
Second reference voltage determination subelement, it is single according to storage for determining the magnitude of voltage of the adjustment signal
The correspondence that member preserves, determines the corresponding reference voltage of magnitude of voltage of the adjustment signal, by the adjustment signal
The corresponding reference voltage of magnitude of voltage is as the internal reference voltage.
In embodiments of the present invention, correspondence can be set according to the physical circuit of driver.For example, when with
When family carries out the second operation to feedback unit, user needs internal reference voltage being adjusted to N, according to the situation in the second operation
The circuit of lower driver, determines the magnitude of voltage of adjustment signal, obtains the magnitude of voltage and the correspondence of N.Determine corresponding pass
After system, when user needs internal reference voltage being adjusted to N, user carries out feedback unit the second operation.
In embodiments of the present invention, when user needs to adjust internal reference voltage, user carries out feedback unit corresponding
Operation, when user operates feedback unit, can change adjustment signal magnitude of voltage, and then realize to internal base
The adjustment of quasi- voltage.
In an embodiment of the present invention, the feedback unit, including：
First resistor, the first end of the first resistor are connected with the driving unit；
At least one parallel branch, each parallel branch include：Switch and connect and correspond to the switch and work as
The fixed value resistance of preceding parallel branch；
Each parallel branch is in parallel with the first resistor respectively；
Second resistance, the constant voltage of the first termination preset value size of the second resistance, the of the second resistance
Two ends are connected with the second end of the first resistor；
3rd resistor, the first end of the 3rd resistor are connected with the first end of the first resistor, the 3rd resistor
Second end ground connection.
In embodiments of the present invention, the adjustment signal of feedback unit is output to driving unit by the first end of first resistor
In.The magnitude of voltage of the adjustment signal is the magnitude of voltage of the first end of first resistor.
In embodiments of the present invention, user can control first by controlling the closure of the switch in each parallel branch
The magnitude of voltage of the first end of resistance.When the switch closure in a parallel branch, fixed value resistance in the parallel branch and the
One resistor coupled in parallel, and then change the resistance value of whole feedback unit output.Here switch can be toggle switch.
In embodiments of the present invention, user can be exported by the opening and closing of controlling switch to control feedback unit
Resistance value, and then the magnitude of voltage for adjusting signal for controlling driving unit to obtain, and then internal reference voltage is adjusted, final control driving
The size of the electric current of electric signal.
For example, the first preset value here can be 10v.
As shown in Fig. 2, a kind of driver provided in an embodiment of the present invention, including：
Feedback unit, collecting unit 201 and driving unit 202；
Feedback unit, including：
The first end of first resistor R1, first resistor R1 are connected with driving unit 202；
Six parallel branches, including：
First parallel branch, including：Switch S1 and connect and corresponding to the fixed value resistance of the first parallel branch with switch S1
Rs1；
Second parallel branch, including：Switch S2 and connect and corresponding to the fixed value resistance of the second parallel branch with switch S2
Rs2；
3rd parallel branch, including：Switch S3 and connect and corresponding to the fixed value resistance of the 3rd parallel branch with switch S3
Rs3；
4th parallel branch, including：Switch S4 and connect and corresponding to the fixed value resistance of the 4th parallel branch with switch S4
Rs4；
5th parallel branch, including：Switch S5 and connect and corresponding to the fixed value resistance of the 5th parallel branch with switch S5
Rs5；
6th parallel branch, including：Switch S6 and connect and corresponding to the fixed value resistance of the 6th parallel branch with switch S6
Rs6；
Each parallel branch is in parallel with first resistor R1 respectively；
The constant voltage of the first termination 10v of second resistance R2, second resistance R2, the second end of second resistance R2 and first
The second end of resistance R1 is connected；
The first end of 3rd resistor R3,3rd resistor R3 are connected with the first end of first resistor R1, and the of 3rd resistor R3
Two ends are grounded.
In an embodiment of the present invention, the driver, further comprises：
Light adjusting controller, the light adjusting controller are connected with the second end of the first resistor；
The light adjusting controller is used for according to exterior control, applies what outside determined to the second end of the first resistor
Dimmer voltage.
In embodiments of the present invention, user can control the dimmer voltage that light adjusting controller exports, and pass through light adjusting controller
The dimmer voltage of output can be adjusted the voltage of the second end of first resistor, and then adjust the tune that driving unit receives
The magnitude of voltage of entire signal, and then internal reference voltage can be adjusted, and then adjust driving electric signal.For example, user passes through
Control the switch in parallel branch, the resistance value of control feedback unit output, the voltage of the adjustment signal received to driving unit
Value is adjusted, and still, which can not meet the needs of electrical equipment, the resistance value of feedback unit output be not adjusted
In the case of, user can adjust the dimmer voltage of light adjusting controller output, the electricity of the adjustment signal received to driving unit
Pressure value is further adjusted, until meeting the needs of electrical equipment.For example, the light modulation electricity that light adjusting controller can export
The scope of pressure can be [1v, 10v].
In addition, when electrical equipment is LED light, the dimmer voltage that can be exported by adjusting light adjusting controller is interior to adjust
Portion's reference voltage, and then driving electric signal is adjusted, the current value of control driving electric signal, and then control the brightness of LED light.Citing
For, in order to increase the brightness of LED light, user can control the dimmer voltage increase that light adjusting controller exports；In order to reduce LED
The brightness of lamp, the dimmer voltage that user can control light adjusting controller to export reduce.
Based on a kind of driver shown in Fig. 2, an embodiment of the present invention provides a kind of driver, as shown in figure 3, feedback
Unit, further comprises：
Light adjusting controller 301, light adjusting controller are connected with the second end of first resistor R1；
Light adjusting controller 301 is used for according to exterior control, applies exterior definite tune to the second end of first resistor R1
Photovoltage.
In an embodiment of the present invention, feedback unit, further comprises：
Operational amplifier, the in-phase input end of the operational amplifier is connected with the first end of the first resistor, described
The output terminal of operational amplifier is connected with the driving unit；
4th resistance, the first end of the 4th resistance are connected with the current output terminal of the electrical equipment, and the described 4th
The second end of resistance is connected with the inverting input of the operational amplifier；
First capacitance, the first end of first capacitance are connected with the output terminal of the operational amplifier, first electricity
The second end of appearance is connected with the inverting input of the operational amplifier；
Second capacitance, the first end of second capacitance are connected with the output terminal of the operational amplifier；
5th resistance, the first end of the 5th resistance are connected with the second end of second capacitance, the 5th resistance
Second end be connected with the inverting input of the operational amplifier.
In embodiments of the present invention, the magnitude of voltage for the adjustment signal that driving unit receives is the output terminal of operational amplifier
Magnitude of voltage.First capacitance, the second capacitance and the 5th resistance form peaking network.The electricity of the current output terminal of electrical equipment
Pressure puts on the inverting input of operational amplifier by the 4th resistance, is exported the electric current of electrical equipment by operational amplifier
The voltage at end is matched with the voltage of the first end of first resistor, if the two matches, illustrates that current electric signal is expired
The power reguirements of sufficient electrical equipment, the feedback unit do not change the magnitude of voltage for the adjustment signal that driving unit receives, into without
Internal reference voltage can be changed, electric signal is driven into without changing；If the two mismatch, illustrate it is current with electric signal not
Meet the power reguirements of electrical equipment, which changes the magnitude of voltage for the adjustment signal that driving unit receives, Jin Ergai
Become internal reference voltage, and then change driving electric signal so that driving electric signal disclosure satisfy that the power reguirements of electrical equipment.
Based on a kind of driver shown in Fig. 2, an embodiment of the present invention provides a kind of driver, as shown in figure 4, feedback
Unit, further comprises：
The in-phase input end of operational amplifier U1, operational amplifier U1 are connected with the first end of first resistor R1, and computing is put
The output terminal of big device U1 is connected with driving unit 202；
4th resistance R4, the first end of the 4th resistance R4 are connected with the current output terminal OUTPUT of electrical equipment, the 4th electricity
The second end of resistance R4 is connected with the inverting input of operational amplifier U1；
First capacitance C1, the first end of the first capacitance C1 are connected with the output terminal of operational amplifier U1, the first capacitance C1's
Second end is connected with the inverting input of operational amplifier U1；
Second capacitance C2, the first end of the second capacitance C2 are connected with the output terminal of operational amplifier U1；
5th resistance R5, the first end of the 5th resistance R5 are connected with the second end of the second capacitance C2, and the of the 5th resistance R5
Two ends are connected with the inverting input of operational amplifier U1.
In an embodiment of the present invention, the collecting unit, including：
6th resistance, the first end ground connection of the 6th resistance, second end and the electrical equipment of the 6th resistance
Current output terminal be connected；
7th resistance, the first end of the 7th resistance are connected with the second end of the 6th resistance, the 7th resistance
Second end be connected with the driving unit, the second end of the 7th resistance exports the feedback letter to the driving unit
Number.
In embodiments of the present invention, which can be the magnitude of voltage of the second end of the 7th resistance.Driving unit is true
The magnitude of voltage of the second end of fixed 7th resistance, by the magnitude of voltage compared with internal reference voltage, judges the use of electrical equipment
Whether electric signal meets internal reference voltage.
In an embodiment of the present invention, which further comprises：Output unit；
The output unit includes：
Diode, the plus earth of the diode, the anode of the diode are connected with the driving unit；
Inductance, the first end of the inductance are connected with the anode of the diode, the second end of the inductance and the use
The current input terminal of electric equipment is connected；
3rd capacitance, the first end of the 3rd capacitance are connected with the second end of the inductance, and the of the 3rd capacitance
Two ends are connected with the current output terminal of the electrical equipment；
The driving unit exports the driving electric signal to the first end of the inductance.
In embodiments of the present invention, diode and inductance composition filtering freewheeling circuit, can be with by the filtering freewheeling circuit
When driving unit exports low level, the energy of storage is discharged, continues to output and stable electric current is provided to electrical equipment, work as driving
When unit exports high level, storage energy, the electric signal for hindering driving unit to export so that the electric signal that electrical equipment obtains is more
Add smoothly, more stablize.In addition, can be protected by the filtering freewheeling circuit to electrical equipment, unexpected high pressure is avoided
Damage electrical equipment.The electric signal for being input to electrical equipment can be filtered by the 3rd capacitance so that electrical equipment obtains
The electric signal obtained is more stablized, and disturbs smaller.
Based on a kind of driver shown in Fig. 4, an embodiment of the present invention provides a kind of driver, as shown in figure 5, including：
Output unit；
Output unit includes：
Diode D1, the plus earth of diode D1, the anode of diode D1 are connected with driving unit；
The first end of inductance L, inductance L are connected with the anode of diode D1, the second end of inductance L and the electric current of electrical equipment
Input terminal INPUT is connected；
3rd capacitance C3, the first end of the 3rd capacitance C3 are connected with the second end of inductance L, the second end of the 3rd capacitance C3 with
The current output terminal OUTPUT of electrical equipment is connected；
First end output driving electric signal of the driving unit to inductance L.
Based on a kind of driver shown in Fig. 5, an embodiment of the present invention provides a kind of electric power system, as shown in fig. 6, bag
Include：
Converting unit 601 and the driver shown in a Fig. 5；
Converting unit 601 is connected with the driving unit 202 in the driver shown in Fig. 5；
Converting unit 601, for receiving externally input source power supply signal, source power supply signal is converted to shown in Fig. 5
The required power supply signal to be converted of driver, power supply signal to be converted is exported to the driving unit 202 of the driver.
In an embodiment of the present invention, which further comprises：Turn off unit；
The shut-off unit includes：
8th resistance, the constant voltage of the first termination preset voltage value size of the 8th resistance；
9th resistance, the first end of the 9th resistance are connected with the second end of the 8th resistance, the 9th resistance
Second end ground connection；
Turn off operational amplifier, the second end phase of the in-phase input end and the 8th resistance of the shut-off operational amplifier
Even；
Tenth resistance, the first end of the tenth resistance are connected with the inverting input of the shut-off operational amplifier, institute
The second end for stating the tenth resistance is connected with the second end of the first resistor；
11st resistance, the first end of the 11st resistance are connected with the output terminal of the shut-off operational amplifier；
Metal-oxide-semiconductor, the grid of the metal-oxide-semiconductor are connected with the second end of the 11st resistance, and the source electrode of the metal-oxide-semiconductor connects
Ground, the drain electrode of the metal-oxide-semiconductor are connected with the driving unit；
Driving unit, including：Control submodule, the high level of the drain electrode output for receiving metal-oxide-semiconductor when driving unit
When, output driving electric signal, when driving unit receives the low level of drain electrode output of metal-oxide-semiconductor, stops output driving telecommunications
Number.
In embodiments of the present invention, using the voltage of the second end of the 8th resistance as reference voltage, put by turning off computing
Big device by the reference voltage compared with the voltage of the first end of the tenth resistance, when the voltage of the first end of the tenth resistance is less than
During the voltage of the second end of the 8th resistance, shut-off operational amplifier output high level, metal-oxide-semiconductor turns on, and the drain electrode output of metal-oxide-semiconductor is low
Level, control subelement stop output driving electric signal when receiving the low level of drain electrode output of metal-oxide-semiconductor.Specifically, may be used
The voltage of the second end of the 8th resistance is arranged to 1v, when the voltage of the first end of the tenth resistance is less than 1v, shut-off driving
Unit output driving electric signal.When electrical equipment is LED light, turn-off function to LED light can be realized by turning off unit.
When user by light adjusting controller to control the brightness of LED light when, when the voltage of the output of light adjusting controller is less than
During the voltage of the second end of the 8th resistance, it is possible to achieve the shut-off to LED light.
In embodiments of the present invention, the Enable Pin of driving unit is connected with shut-off unit.For example, when driving unit is
During chopping depressuring chip, the enabled pin of chopping depressuring chip is connected with shut-off unit.User can turn off unit by controlling
Export enable signal to driving unit, so control driving unit whether output driving electric signal, can be with by the shut-off unit
It is the zero output control of driver.
A kind of electric power system provided in an embodiment of the present invention is split type electric power system, the conversion that each driver is shared
Unit is separated with each driver so that multiple drivers share a converting unit, save resource, reduce cost.When
When each required power supply signal to be converted of driver is low pressure electric signal, converting unit exports low tension to each driver
Signal, avoids user from contacting forceful electric power and gets an electric shock, reduce supporting cost and maintenance cost, overall power supply conversion efficiency higher.
A kind of course of work of electric power system provided in an embodiment of the present invention is as follows：
For whole electric power system, a converting unit can be shared by each driver.Converting unit receives
After exterior source power supply signal, the required power supply signal to be converted of each driver is converted into, is exported to each driver.Lift
For example, each driver needs the constant voltage DC electricity of 48v, at this moment, set the constant pressure that a converting unit can export 48v straight
Galvanic electricity, which is connected with each driver.220v alternating currents are converted to the constant voltage DC of 48v by the converting unit
Electricity, gives the constant voltage DC electricity output of the 48v to each driver.Sharing for converting unit is realized in the electric power system.
For each driver, collecting unit gathers the use electric signal of electrical equipment in real time, is exported to driving unit
Feedback signal, which can be the magnitude of voltage of the feedback signal received of driving unit, when driving unit is determined
When the magnitude of voltage for the feedback signal that driving unit receives and the internal reference voltage currently preserved mismatch, copped wave pulse is adjusted
Width, according to the copped wave pulse width after adjustment, carries out power supply signal to be converted copped wave processing, generation driving electric signal, leads to
Electric signal of overdriving is power supply for electrical equipment.Here adjustment is real-time, and driving unit is once it is determined that go out the feedback received
The magnitude of voltage of signal and the internal reference voltage currently preserved mismatch, and will be adjusted, with output matching internal reference electricity
The driving electric signal of pressure.Here internal reference voltage is that user is set according to the power demand of electrical equipment.When electricity consumption is set
When standby power demand changes, user can adjust internal reference voltage by feedback unit.Specifically, user can be with
Change the magnitude of voltage for the adjustment signal that driving unit receives by varying the resistance value of feedback unit output, user can also lead to
Cross and change the dimmer voltage of light adjusting controller output to change the magnitude of voltage for the adjustment signal that driving unit receives.Driving unit
Internal reference voltage is adjusted according to the magnitude of voltage of adjustment signal.Then, driving unit is coordinating collecting unit output to meet electricity consumption
The driving electric signal of the power demand of equipment.By feedback unit, which can flexibly export required driving telecommunications
Number, it disclosure satisfy that the power demand of various electrical equipments.
As shown in fig. 7, the confession an embodiment of the present invention provides any electric power system in a kind of embodiment of the present invention
Method for electrically, including：
Step 701：Converting unit receives externally input source power supply signal, and the source power supply signal is converted at least one
A required power supply signal to be converted of driver, the power supply signal to be converted is exported to each driver；
Step 702：For each driver, the driving unit of the feedback unit of current drive to the current drive
Output adjustment signal；
Step 703：The collecting unit of the current drive gathers the corresponding electrical equipment output of the current drive
Use electric signal, according to it is described with driving unit from electric signal to the current drive export feedback signal；
Step 704：The driving unit of the current drive receives the power supply to be converted of the converting unit output
Signal；
Step 705：The adjustment signal that the driving unit of the current drive is exported according to the feedback unit, really
Determine internal reference voltage；
Step 706：The feedback signal that the driving unit of the current drive is exported according to the collecting unit and
The internal reference voltage, the corresponding required driving telecommunications of the electrical equipment is converted to by the power supply signal to be converted
Number, the driving electric signal is exported, is the corresponding power supply for electrical equipment by the driving electric signal.
The each embodiment of the present invention at least has the advantages that：
1st, in embodiments of the present invention, converting unit changes externally input source power supply signal, generates each drive
The required power supply signal to be converted of dynamic device, each driver are receiving power supply signal to be converted, can be according to corresponding use
The demand of electric equipment, changes out the driving electric signal of corresponding electrical equipment, and each driver passes through the driving telecommunications changed out
Number it is corresponding power supply for electrical equipment, each driver shares same converting unit, without configuring one for each driver
Converting unit, saves resource.
2nd, in embodiments of the present invention, internal reference can be controlled by feedback unit for each driver, user
Voltage, and then required driving electric signal is exported by driving unit, a variety of driving telecommunications can be exported by the driver
Number, it can meet a variety of electrical equipments with different power demands, the compatibility of the driver is higher.
3rd, in embodiments of the present invention, converting unit is deployed in distribution box, from distribution box to exterior each driver
Export power supply signal to be converted.When power supply signal to be converted is low pressure electric signal, the electric signal from distribution box to electrical equipment
All it is low pressure, for user when being operated to electrical equipment, what is touched is also low pressure electric signal, avoids user from contacting forceful electric power
Get an electric shock, security is higher.
4th, in embodiments of the present invention, the converting unit that each driver shares is separated with each driver so that more
A driver shares a converting unit, saves resource, reduces cost.When the required power supply to be converted of each driver
When signal is low pressure electric signal, converting unit exports low pressure electric signal to each driver, avoids user from contacting forceful electric power and occurs to touch
Electricity, reduces supporting cost and maintenance cost, overall power supply conversion efficiency higher.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non-
It is exclusive to include, so that process, method, article or equipment including a series of elements not only include those key elements,
But also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some key elements.In the absence of more restrictions, the key element limited by sentence " including one ", is not arranged
Except in the process, method, article or apparatus that includes the element also in the presence of other identical factor.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
The relevant hardware of programmed instruction is completed, and foregoing program can be stored in computer-readable storage medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：The foregoing is merely presently preferred embodiments of the present invention, is merely to illustrate skill of the invention
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention,
Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.
Claims (9)
- A kind of 1. electric power system, it is characterised in that including：Converting unit and at least one driver；The driver, including：Feedback unit, collecting unit and driving unit；The driving unit of the converting unit respectively with each driver is connected；The driving unit of each driver is connected with corresponding electrical equipment；The converting unit, for receiving externally input source power supply signal, by the source power supply signal be converted to it is described at least The required power supply signal to be converted of one driver, the power supply signal to be converted is exported to each driver；The feedback unit, for the driving unit output adjustment signal；The collecting unit, electric signal is used for gather corresponding electrical equipment output, according to it is described with electric signal to The driving unit exports feedback signal；The driving unit, for receiving the power supply signal to be converted of the converting unit output, according to the feedback The adjustment signal of member output, determines internal reference voltage, the feedback signal exported according to the collecting unit and institute Internal reference voltage is stated, the power supply signal to be converted is converted into the corresponding required driving telecommunications of the electrical equipment Number, the driving electric signal is exported, is the corresponding power supply for electrical equipment by the driving electric signal；The driving unit, including：Copped wave handles subelement, for according to the feedback signal and the internal reference voltage, determining copped wave pulse width, root According to the copped wave pulse width, copped wave processing is carried out to the power supply signal to be converted, generates the driving electric signal；The feedback unit, including：First resistor, the first end of the first resistor are connected with the driving unit；At least one parallel branch, each parallel branch include：Switch and connect and correspond to currently simultaneously with the switch Join the fixed value resistance of branch；Each parallel branch is in parallel with the first resistor respectively；Second resistance, the constant voltage of the first termination preset value size of the second resistance, the second end of the second resistance It is connected with the second end of the first resistor；3rd resistor, the first end of the 3rd resistor are connected with the first end of the first resistor, and the of the 3rd resistor Two ends are grounded.
- 2. electric power system according to claim 1, it is characterised in thatThe converting unit, including：Conversion subunit, for receiving externally input alternating current, the constant pressure that the alternating current is converted to preset voltage value is straight Galvanic electricity, the constant voltage DC electricity is exported to each driver；The driving unit, including：Receiving subelement, for receiving the constant voltage DC electricity of the conversion subunit output；Direct current conversion subunit, for the feedback signal exported according to the collecting unit and the internal reference voltage, The constant voltage DC electricity is converted to the constant-current dc electricity of the corresponding required pre-set current value of the electrical equipment.
- 3. electric power system according to claim 1, it is characterised in thatThe driving unit, including：First reference voltage determination subelement, for determining the magnitude of voltage of the adjustment signal, according to formula one, determines in described Portion's reference voltage；Wherein, the formula one is：T=k × b,Wherein, T is the internal reference voltage, and k is preset constant, and b is the magnitude of voltage of the adjustment signal.
- 4. electric power system according to claim 1, it is characterised in thatThe driving unit, including：Storing sub-units, for preserving the magnitude of voltage of the adjustment signal and the correspondence of reference voltage；Second reference voltage determination subelement, for determining the magnitude of voltage of the adjustment signal, is protected according to the storing sub-units The correspondence deposited, determines the corresponding reference voltage of magnitude of voltage of the adjustment signal, by the voltage of the adjustment signal It is worth corresponding reference voltage as the internal reference voltage.
- 5. electric power system according to claim 1, it is characterised in thatThe driver, further comprises：Light adjusting controller, the light adjusting controller are connected with the second end of the first resistor；The light adjusting controller is used for according to exterior control, applies exterior definite light modulation to the second end of the first resistor Voltage.
- 6. electric power system according to claim 1, it is characterised in thatThe feedback unit, further comprises：Operational amplifier, the in-phase input end of the operational amplifier are connected with the first end of the first resistor, the computing The output terminal of amplifier is connected with the driving unit；4th resistance, the first end of the 4th resistance are connected with the current output terminal of the electrical equipment, the 4th resistance Second end be connected with the inverting input of the operational amplifier；First capacitance, the first end of first capacitance are connected with the output terminal of the operational amplifier, first capacitance Second end is connected with the inverting input of the operational amplifier；Second capacitance, the first end of second capacitance are connected with the output terminal of the operational amplifier；5th resistance, the first end of the 5th resistance are connected with the second end of second capacitance, and the of the 5th resistance Two ends are connected with the inverting input of the operational amplifier.
- 7. electric power system according to claim 1, it is characterised in thatThe driver further comprises：Output unit；The output unit includes：Diode, the plus earth of the diode, the anode of the diode are connected with the driving unit；Inductance, the first end of the inductance are connected with the anode of the diode, and the second end of the inductance is set with the electricity consumption Standby current input terminal is connected；3rd capacitance, the first end of the 3rd capacitance are connected with the second end of the inductance, the second end of the 3rd capacitance It is connected with the current output terminal of the electrical equipment；The driving unit exports the driving electric signal to the first end of the inductance.
- 8. according to any electric power system in claim 1-7, it is characterised in thatThe converting unit is deployed in distribution box；And/orThe converting unit is connected by low-voltage direct transmission line with each driver.
- A kind of 9. method of supplying power to of any electric power system in 1-8 based on claim, it is characterised in that including：Converting unit receives externally input source power supply signal, and the source power supply signal is converted to needed at least one driver The power supply signal to be converted wanted, the power supply signal to be converted is exported to each driver；For each driver, the driving unit output adjustment of the feedback unit of current drive to the current drive Electric signal is used in signal, the corresponding electrical equipment output of the collecting unit collection current drive of the current drive, According to described feedback signal, the driving list of the current drive are exported to the driving unit of the current drive with electric signal Member receives the power supply signal to be converted of the converting unit output, and the adjustment exported according to the feedback unit is believed Number, determine internal reference voltage, the feedback signal exported according to the collecting unit and the internal reference voltage, by institute State power supply signal to be converted and be converted to the corresponding required driving electric signal of the electrical equipment, export the driving telecommunications Number, it is the corresponding power supply for electrical equipment by the driving electric signal.
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| CN101990337A (en) * | 2009-08-03 | 2011-03-23 | 联咏科技股份有限公司 | Light source drive device capable of dynamically maintaining constant current drive and related method thereof |
| CN203352865U (en) * | 2013-04-23 | 2013-12-18 | 深圳市灵星雨科技开发有限公司 | LED dimming system |
| CN204598413U (en) * | 2015-05-13 | 2015-08-26 | 深圳市垅运照明电器有限公司 | A kind of LED light adjusting circuit possessing multiple current and select |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102148578B (en) * | 2010-02-10 | 2014-07-02 | 和硕联合科技股份有限公司 | Power device |
| CN102594142A (en) * | 2011-01-13 | 2012-07-18 | 永硕联合国际股份有限公司 | Power supply device |
| KR101965556B1 (en) * | 2011-06-14 | 2019-04-05 | 서울시립대학교 산학협력단 | Illumination driving apparatus |
| CN203942687U (en) * | 2014-07-03 | 2014-11-12 | 苏州鸿益丰光电有限公司 | A kind of isolated form constant-current dimming circuit |
| CN206332876U (en) * | 2016-12-01 | 2017-07-14 | 意诺科技有限公司 | A kind of electric power system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101990337A (en) * | 2009-08-03 | 2011-03-23 | 联咏科技股份有限公司 | Light source drive device capable of dynamically maintaining constant current drive and related method thereof |
| CN203352865U (en) * | 2013-04-23 | 2013-12-18 | 深圳市灵星雨科技开发有限公司 | LED dimming system |
| CN204598413U (en) * | 2015-05-13 | 2015-08-26 | 深圳市垅运照明电器有限公司 | A kind of LED light adjusting circuit possessing multiple current and select |
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