CN205430075U - Power supply unit and power supply system - Google Patents
Power supply unit and power supply system Download PDFInfo
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- CN205430075U CN205430075U CN201520979220.3U CN201520979220U CN205430075U CN 205430075 U CN205430075 U CN 205430075U CN 201520979220 U CN201520979220 U CN 201520979220U CN 205430075 U CN205430075 U CN 205430075U
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Abstract
The utility model discloses a power supply unit and power supply system. This power supply unit includes: the adapter for convert the input voltage of power into a power supply voltage, transmission lines, transmission lines's input voltage is a power supply voltage, and transmission lines's output voltage is the 2nd power supply voltage, the steady voltage unit for carry out the steady voltage to the 2nd power supply voltage and handle, obtain the target consumer at normal during operation the 3rd required power supply voltage, power supply interface for supply power for the target consumer through the 3rd power supply voltage. Through the utility model discloses, the unstable problem of power supply voltage of consumer in the correlation technique has been solved.
Description
Technical field
This utility model relates to for electrical domain, in particular to a kind of electric supply installation and electric power system.
Background technology
At present, when electrical equipment is powered based on external dc (DirectCurrent, referred to as DC), by using adapter, use centrally connected power supply, by input AC (AlternatingCurrent, referred to as AC) be converted to DC output, with to electrical equipment.Such as, electrical equipment is ball-shaped camera, as shown in Figure 1.Wherein, Fig. 1 is the schematic diagram according to the ball-shaped camera in correlation technique.Ball-shaped camera is powered based on outside DC at the construction field (site), by using adapter, the civil power of the AC220V voltage of input is converted to the output of DC12V voltage, then is transmitted by the transmission cable of distance, to power to ball-shaped camera.
Due to the power network fluctuation of civil power, especially when the quality of the adapter of outsourcing is uneven, adapter can not stably export DC, this spread of voltage making adapter export due to the phenomenon of power network fluctuation.On the other hand, the transmission cable of distance can cause the voltage of the DC that adapter exports to be decayed on transmission cable, especially in the case of big electric current is powered, the voltage that the impedance on transmission cable is consumed is relatively big, and causing the supply voltage arriving electrical equipment is not the stable voltage at DC.When the supply voltage instability of electrical equipment makes input voltage ratio when of relatively low, and electrical equipment there will be the situation of operation irregularity.
This cause output voltage than relatively low situation with owing to the impedance on transmission cable causes output voltage to carry out the impact of the direct current supply of electrical equipment often than relatively low situation simultaneously due to power network fluctuation.Both of these case can be according to formula U on the impact of the direct current supply of electrical equipmenti'=Uo′±△Uo'-2R ' I ' calculates.Fig. 2 is the schematic diagram of the supply voltage according to the electrical equipment in correlation technique.As it is shown in figure 1, Ui' it is the supply voltage of electrical equipment, Uo' it is the output voltage of adapter, I ' is the electric current on transmission cable, and R ' is the impedance of single transmission cable, the total impedance that 2R ' is transmission cable.Wherein, R '=ρ ' L '/S ', ρ ' are resistivity, the length that L ' is transmission cable, and S ' is conductor cross sectional area.When transmission cable is copper, ρ ' is about 0.0175 Ω mm2/ m, a diameter of 1mm of cross section2, during a length of 100 meters of transmission cable, it can be deduced that the impedance R ' of transmission cable is about 2 Ω.When powering to ball-shaped camera, when single transmission cable is 60 meters, then a length of 120 meters of the total transmission cable in the loop of ball-shaped camera, the total impedance of transmission cable is 2.4 Ω, when the fully loaded required electric current of ball-shaped camera is 2A, on transmission cable, the voltage of loss reaches 4.8V, and on the other hand, the output voltage of adapter is △ U because the output voltage that power network fluctuation causes fluctuateso' general within 1V.But, the DC voltage that ball-shaped camera normally works is DC12V voltage, it is allowed to voltage pulsation the most as little as DC9V, when on transmission cable, the voltage of loss can cause the input terminal voltage of ball-shaped camera less than DC9V when reaching 4.8V.The input terminal voltage ball-shaped camera less than DC9V meeting abnormal restarting after out of service, it is impossible to normally work.
For the problem that the supply voltage of electrical equipment in correlation technique is unstable, effective solution is the most not yet proposed.
Utility model content
Main purpose of the present utility model is to provide a kind of electric supply installation and electric power system, the problem unstable at least to solve the supply voltage of electrical equipment.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of electric supply installation.This electric supply installation includes: adapter, for the input voltage of power supply is converted to the first supply voltage；Transmission cable, the input terminal voltage of transmission cable is the first supply voltage, and the output end voltage of transmission cable is the second supply voltage；Voltage regulation unit, processes for the second supply voltage is performed voltage stabilizing, obtains the 3rd supply voltage that target electrical equipment is required when normal work；And power supply interface, being used for by the 3rd supply voltage is that target electrical equipment is powered.
Further, this voltage regulation unit includes: interface module, for receiving the second supply voltage；Power circuit, for the second supply voltage performs power conversion, obtains the 3rd supply voltage；Control module, is used for controlling power circuit output the 3rd supply voltage；And commutation diode, for unidirectional output the 3rd supply voltage to described power supply interface.
Further, this interface module includes: interface, for receiving the voltage swing the second supply voltage in preset range；And interface protective circuit, the offer chip for electric supply installation is protected.
Further, this commutation diode is arranged between power circuit and control module, is used for exporting feedback voltage to control module, and wherein, voltage regulation unit is for performing the voltage after loop compensation obtains circuit compensation.
Further, this control module includes: control IC, the voltage after receiving circuit compensation；And field effect transistor, for the time ratio of the turn-on and turn-off of control module is controlled.
Further, this control module is control module based on dcdc converter.
Further, this voltage regulation unit is arranged on the power interface plate of target electrical equipment.
Further, this target electrical equipment includes slip ring, and power supply interface is that target device is powered by slip ring.
Further, the second supply voltage is the low-voltage less than the 3rd supply voltage, and voltage regulation unit is for low-voltage execution voltage stabilizing processes the voltage regulation unit obtaining the 3rd supply voltage.
To achieve these goals, according to another aspect of the present utility model, it is provided that a kind of electric power system.This electric power system includes: electrical equipment；And power supply device of the present utility model, for electrical equipment is powered.
Further, this electrical equipment is spherical camera, and this spherical camera includes: power interface plate, and the voltage regulation unit of power supply device is arranged on power interface plate；The Cloud Terrace master control borad, is connected with the power supply interface of power supply device by slip ring；Movement keyset, is connected with The Cloud Terrace master control borad by patchcord；Movement, is connected with movement keyset.
In this utility model, electric supply installation includes adapter, transmission cable, voltage regulation unit and power supply interface.The input voltage of power supply is converted to the first supply voltage by adapter；The input terminal voltage of transmission cable is the first supply voltage, output end voltage is the second supply voltage, by voltage regulation unit, the second supply voltage is performed voltage stabilizing to process, obtain the 3rd supply voltage that target electrical equipment is required when normal work, power supply interface is that target electrical equipment is powered by the 3rd supply voltage, solve the problem that the supply voltage of electrical equipment is unstable, and then reach the effect of the stability of the supply voltage improving electrical equipment.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the ball-shaped camera in correlation technique；
Fig. 2 is the schematic diagram of the supply voltage according to the electrical equipment in correlation technique；
Fig. 3 is the schematic diagram of the electric supply installation according to this utility model embodiment；
Fig. 4 is the schematic diagram of the voltage regulation unit according to this utility model embodiment；
Fig. 5 is the schematic diagram of the electric power system according to this utility model first embodiment；And
Fig. 6 is the schematic diagram of the electric power system according to this utility model the second embodiment.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to make those skilled in the art be more fully understood that the application scheme, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application part rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all should belong to the scope of the application protection.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to embodiments herein described herein.In addition, term " includes " and " having " and their any deformation, it is intended to cover non-exclusive comprising, such as, contain series of steps or the process of unit, device, system, product or equipment be not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for intrinsic other step of these processes, device, product or equipment or unit.
Embodiment of the present utility model provides a kind of electric supply installation.
Fig. 3 is the schematic diagram of the electric supply installation according to this utility model first embodiment.As it is shown on figure 3, this electric supply installation includes: adapter 10, transmission line 20, voltage regulation unit 30 and power supply interface 40.
Adapter 10, for being converted to the first supply voltage by the input voltage of power supply.
Preferably, adapter 10 is connected to power supply, for the input voltage of power supply is converted to the first supply voltage.The input voltage that adapter 10 is obtained by being connected to power supply can be stable input voltage, it is also possible to be unstable input voltage.Such as, when power supply provides stable civil power AC220V voltage, voltage to adapter 10 input is stable civil power AC220V voltage, when power supply is solar electric power supply system, the input voltage that solar electric power supply system is affected offer by extraneous factor is highly unstable, and the input voltage of power supply can also be the input voltage produced under other adverse circumstances.The input voltage of power supply, after the input voltage receiving power supply, is changed by adapter 10, obtains the first supply voltage, and the first supply voltage can be the normal working voltage of target electrical equipment.
Transmission cable 20, the input terminal voltage of transmission cable 20 is the first supply voltage, and the output end voltage of transmission cable 20 is the second supply voltage.
Preferably, transmission cable 20 is connected with the outfan of adapter 10, and the input terminal voltage of transmission cable 20 is the first supply voltage, and the output end voltage of transmission cable 20 is the second supply voltage.Transmission cable 20 is connected with the outfan of adapter 10, and alternatively, transmission cable 20 is the power cable of distance, including input and outfan.The input of transmission cable 20 receives the first supply voltage, and transmits the first supply voltage.Due to the transmission on transmission cable 20 of impedance influences first supply voltage of power network fluctuation or transmission cable, or, the impedance of power network fluctuation and transmission cable affects the transmission on transmission cable 20 of first supply voltage simultaneously, the voltage making the outfan of transmission cable 20 is not the first supply voltage, and the voltage of the outfan of transmission cable 20 cannot be used for the supply voltage powering target electrical equipment.Now, the output end voltage of transmission cable 20 is the second supply voltage.
Voltage regulation unit 30, processes for the second supply voltage is performed voltage stabilizing, obtains the 3rd supply voltage that target electrical equipment is required when normal work.
Preferably, voltage regulation unit 30 is connected with the outfan of transmission cable 20, processes for the second supply voltage is performed voltage stabilizing, obtains the 3rd supply voltage that target electrical equipment is required when normal work.Voltage regulation unit 30 is connected with the outfan of transmission cable 20, receives the second supply voltage of transmission cable 20.Target electrical equipment includes that power interface plate, voltage regulation unit 30 are arranged on the power interface plate of target electrical equipment.Voltage regulation unit 30 includes interface module, power circuit, control module and commutation diode.
The interface module of voltage regulation unit 30 is for receiving the second supply voltage.Preferably, the second supply voltage is the low-voltage less than the 3rd supply voltage, and voltage regulation unit 30 is for low-voltage execution voltage stabilizing processes the voltage regulation unit obtaining the 3rd supply voltage.Interface module includes interface, and the interface of interface module is for receiving the voltage swing described second supply voltage in preset range, that is, the second supply voltage is wide cut voltage.For example, input voltage is that AC220V voltage is converted to the first supply voltage by adapter 10, then through transmission cable 20, first supply voltage is transmitted the outfan to transmission cable 20, obtains the second supply voltage.Alternatively, the interface module of voltage regulation unit 30 can receive second supply voltage of DC6V to DC30V.Interface module also includes interface protective circuit, and the chip for electric supply installation provides protection, it is preferable that interface protective circuit is connected with interface circuit.Alternatively; interface protective circuit includes lightning Protection circuit; the chip that lightning Protection circuit is electric supply installation provides lightning Protection; prevent thunderbolt from the chip of electric supply installation is caused damage; interface module also includes electrostatic discharge protection circuit; the chip that electrostatic discharge protection circuit is electric supply installation provides electrostatic defending, prevents electrostatic from the chip of electric supply installation is caused damage.
The power circuit of voltage regulation unit 30 is used for the output voltage of receiving interface module and performs power conversion, power circuit includes inductance, metal-oxide semiconductor (MOS) (MetalOxideSemiconductor, referred to as MOS) components and parts such as field effect transistor, electric capacity, the filter action of circuit can be realized, preferably, the power circuit of voltage regulation unit 30 is connected with interface module.
The control module of voltage regulation unit 30 is used for controlling power circuit output the 3rd supply voltage.Preferably, the control module of voltage regulation unit 30 is connected with power circuit.The process of the output voltage that control module controls power circuit is automatic control process, can be based on DC converter (DirectCurrentDirectCurrent, referred to as DCDC) control module, alternatively, control module is the Topology Switch power supply of single ended primary induction changer (SingleEndedPrimaryInductorConverter, referred to as SEPIC).Specifically, SEPIC be a kind of allow output voltage to be more than, less than or equal to the dcdc converter of input voltage, output voltage is controlled by the dutycycle of the master switch of power supply.Master switch includes audion or metal-oxide-semiconductor.Preferably, control module includes controlling integrated circuit (IntegratedCircuit, referred to as IC), for control module being performed control according to loop compensation parameter, the produced loop compensation parameter such as phase place, limit during being included in the control of loop compensation, such as, receive loop compensation parameter by the boosting rectifier control power supply chip of TPS40210 type, control the output voltage of IC, electric current etc. according to loop compensation parameter adjustment.Control module also includes field effect transistor, and field effect transistor, for being controlled the time ratio of the turn-on and turn-off of control module, can be the field effect transistor of IRF3710 type.Preferably, the first end of field effect transistor is connected with controlling IC, and the second end of field effect transistor is connected with power circuit.By the dutycycle controlling field effect transistor, the time ratio of the turn-on and turn-off of the master switch of control module is controlled, controls the output voltage of power circuit further, that is, control the 3rd supply voltage that power circuit output is powered for target electrical equipment.
The commutation diode of voltage regulation unit 30 is used for unidirectional output the 3rd supply voltage to power supply interface.Preferably, the commutation diode of voltage regulation unit 30 is connected with power circuit, and commutation diode is arranged between power circuit and control module, for exporting feedback voltage to control module, wherein, voltage regulation unit 30 performs loop compensation, thus obtains loop compensation parameter.Specifically, after the 3rd supply voltage exported power circuit at commutation diode carries out unidirectional output, commutation diode output feedback voltage, voltage regulation unit 30 performs loop compensation according to feedback voltage, obtains including the loop compensation parameter such as phase place, limit.Control module, according to the time ratio of the turn-on and turn-off of the loop compensation state modulator master switch such as phase place, limit, controls the output voltage of power circuit further.Power circuit carries out single-phase output by commutation diode again to the output voltage of power circuit, then exports feedback voltage to control module, so circulates, finally makes commutation diode export stable voltage quickly and accurately.Preferably, eventually through the commutation diode output target electrical equipment the 3rd supply voltage needed for normal work, thus improve the stability of the supply voltage of electrical equipment.
Power supply interface 40, being used for by the 3rd supply voltage is that target electrical equipment is powered.
Preferably, power supply interface 40, it is connected with voltage regulation unit 30, being used for by the 3rd supply voltage is that target electrical equipment is powered.Power supply interface 40 is connected with voltage regulation unit 30, receives the 3rd supply voltage of voltage regulation unit 30 output.Target electrical equipment includes slip ring, and power supply interface is that target device is powered by slip ring.Preferably, power supply interface 40 is connected with the slip ring of target electrical equipment, by slip ring output the 3rd supply voltage of target electrical equipment to the modules of target electrical equipment, powers for target electrical equipment.
Alternatively, the target electrical equipment of this embodiment is spherical camera.Spherical camera includes slip ring, power interface plate, The Cloud Terrace master control borad, keyset and movement, wherein, is arranged at by voltage regulation unit on the power interface plate of spherical camera.The AC220V voltage of reception is changed by adapter 10, obtains the first supply voltage, that is, the normal working voltage DC12V voltage of ball-shaped camera.First supply voltage DC12V voltage transmits via transmission cable 20.Due to the first supply voltage DC12V voltage by transmission cable 20 transmit during by grid fluctuations affect or the impedance influences of transmission cable, or, the impedance of power network fluctuation and transmission cable affects simultaneously, the output end voltage and the first supply voltage DC12V voltage that make transmission cable are different, now, the output end voltage of transmission cable is the second supply voltage.By voltage regulation unit 30, second supply voltage is carried out voltage stabilizing and obtain the 3rd supply voltage DC12V voltage.3rd supply voltage DC12V voltage exports the The Cloud Terrace master control borad to ball-shaped camera via power supply interface 40 by the slip ring of spherical camera, The Cloud Terrace master control borad is connected with the movement keyset of ball-shaped camera by patchcord, movement keyset passes through FPC (FlexiblePrintedCircuit, referred to as FPC) it is connected with movement keyset, so that the modules of ball-shaped camera obtains stable running voltage, ball-shaped camera is made normally to work.
In this utility model, it is connected to power supply by adapter, the input voltage of power supply is converted to the first supply voltage；Being connected with the outfan of adapter by transmission cable, the input terminal voltage of transmission cable is the first supply voltage, and the output end voltage of transmission cable is the second supply voltage；It is connected with the outfan of transmission cable by voltage regulation unit, the second supply voltage is performed voltage stabilizing and processes, obtain the 3rd supply voltage that target electrical equipment is required when normal work；It is connected with voltage regulation unit by power supply interface, is that target electrical equipment is powered by the 3rd supply voltage, thus improves the stability of the supply voltage of electrical equipment.
Fig. 4 is the schematic diagram of the voltage regulation unit according to this utility model embodiment.It should be noted that the voltage regulation unit of this embodiment can be as the preferred embodiment of the voltage regulation unit of this utility model first embodiment.As shown in Figure 4, this voltage regulation unit includes: wide crimping mouth 301, wide pressure interface protective circuit 302, power circuit 303, commutation diode 304, controls IC305 and field effect transistor 306.
The voltage regulation unit of electric supply installation is connected with the outfan of the transmission cable of electric supply installation, the second supply voltage is performed voltage stabilizing and processes, and obtains the 3rd supply voltage that target electrical equipment is required when normal work.Second supply voltage is after adapter converts input voltage into the first supply voltage, and the first supply voltage is through the outfan of transmission cable transmission to transmission cable, the voltage of the transmission cable outfan obtained.
The interface module of voltage regulation unit includes wide crimping mouth 301 and wide pressure interface protective circuit 302.Wide crimping mouth 301 is connected with the outfan of transmission cable, receives the second supply voltage of transmission cable.Specifically, the size of the second supply voltage that wide crimping mouth 301 receives is in preset range.Preferably, the second supply voltage is the low-voltage less than the 3rd supply voltage, and voltage regulation unit is for low-voltage execution voltage stabilizing processes the voltage regulation unit obtaining the 3rd supply voltage.The wide crimping mouth 301 of interface module can perform voltage stabilizing to low-voltage and process, and obtains the 3rd supply voltage that target electrical equipment is required when normal work, and such as, when the 3rd supply voltage is 12V, the second supply voltage can as little as DC6V.Wide crimping mouth 301 can also compatible the second supply voltage between up to DC30V voltage.Wide pressure interface protective circuit 302 is connected with wide crimping mouth 301; it is possible to prevent outside energy to damage the chip of electric supply installation; preferably; wide pressure interface protective circuit 302 includes lightning Protection circuit; can be the chip offer lightning Protection of electric supply installation, thus prevent thunderbolt from the chip of electric supply installation is caused damage.Wide pressure interface protective circuit 302 also includes electrostatic discharge protection circuit, can be that the chip of electric supply installation provides electrostatic defending, thus prevent electrostatic from the chip of electric supply installation is caused damage.
Power circuit 303 is connected with wide crimping mouth 301, performs power conversion.Power circuit includes filter circuit, thus realizes being filtered, the output voltage of power circuit 303 to eliminate the ripple of circuit.
Commutation diode 304 is connected with power circuit 303, for the 3rd supply voltage of unidirectional output power circuit to power supply interface.
The control module of voltage regulation unit is the Topology Switch power supply of SEPIC.Control module includes controlling IC305 and field effect transistor 306, controls the boosted switch power supply chip that IC305 can be TPS40210 type, and field effect transistor 306 is IRF3710 type.First end of IRF3710 field effect transistor is connected with the boosted switch power supply chip of TPS40210 type, and the second end of IRF3710 field effect transistor is connected with power circuit 303.
Preferably, commutation diode 304 is arranged between power circuit 303 and TPS40210 boosting rectifier control power supply chip.After commutation diode 304 carries out unidirectional output to the output voltage of power circuit 303, commutation diode 304 exports feedback voltage to control module.Wherein, voltage regulation unit performs loop compensation, thus obtains loop compensation parameter.After performing loop compensation, control module controls, by TPS40210 boosted switch power supply chip, the dutycycle that IRF3710 field effect transistor controls the master switch of control module.Controlled the time ratio of the turn-on and turn-off of master switch by the dutycycle controlling master switch, control the size of the output voltage of power circuit 303 further.Power circuit 303 carries out unidirectional output by commutation diode 304 to the output voltage of power circuit again, output feedback voltage is to TPS40210 boosted switch power supply chip, perform loop compensation, so circulation, commutation diode 304 is finally made to export the 3rd stable supply voltage DC12V voltage quickly and accurately, exported to electrical equipment by the power supply interface of electric supply installation again, make electrical equipment normally work under stable running voltage, thus improve the stability of the supply voltage of electrical equipment.
The electric supply installation of this embodiment receives the second supply voltage by wide crimping mouth 301, prevent outside energy from damaging the chip of electric supply installation by wide pressure interface protective circuit 302, it is connected with wide crimping mouth 301 by power circuit 303, receive the output voltage of wide crimping mouth 301, it is connected with power circuit 303 by commutation diode 304, the output electric current of power circuit 303 is carried out rectification, the output electric current of power circuit 303 is controlled by boosted switch power supply chip 305 and field effect transistor 306, it is achieved thereby that commutation diode 304 stably exports the 3rd supply voltage, improve the stability of the supply voltage of electrical equipment.
This utility model additionally provides a kind of electric power system.
Fig. 5 is the schematic diagram of the electric power system according to this utility model first embodiment.As it is shown in figure 5, this electric power system includes: power supply device 100 and electrical equipment 200.
Power supply device 100, for powering to electrical equipment.
The input voltage of power supply is converted to the first supply voltage by the adapter of power supply device 100, it is preferable that the adapter of power supply device 100 is connected to power supply.When power supply provides stable civil power AC220V voltage, the input voltage of the adapter of power supply device 100 is stable civil power AC220V voltage, and input voltage can also be the unstable input voltage under other adverse circumstances.The input voltage of power supply, after the input voltage receiving power supply, is changed by the adapter of power supply device 100, obtains the first supply voltage, and the first supply voltage can be the normal working voltage of electrical equipment 200.
The input terminal voltage of the transmission cable of power supply device 100 is the first supply voltage, and the output end voltage of transmission cable is the second supply voltage.
The voltage regulation unit of power supply device 100 is connected with the outfan of transmission cable, the second supply voltage is performed voltage stabilizing and processes, and obtains the 3rd supply voltage that electrical equipment is required when normal work.The voltage regulation unit of power supply device 100 includes interface module, power circuit, control module and commutation diode.The interface module of voltage regulation unit includes interface and interface protective circuit, and interface is for receiving the voltage swing the second supply voltage in preset range.Preferably, the second supply voltage is the low-voltage less than the 3rd supply voltage, and voltage regulation unit is for low-voltage execution voltage stabilizing processes the voltage regulation unit obtaining the 3rd supply voltage.Interface protective circuit includes lightning Protection circuit and electrostatic discharge protection circuit, and the chip that lightning Protection circuit is electric supply installation provides lightning Protection, and the chip that electrostatic discharge protection circuit is electric supply installation provides electrostatic defending.The power circuit of voltage regulation unit is connected with interface module, the components and parts such as including inductance, electric capacity, metal-oxide-semiconductor, for receiving interface module output voltage and perform power conversion.The control module of voltage regulation unit is connected with power circuit, controls the output voltage of power circuit.Preferably, control module includes controlling IC and field effect transistor, first end of field effect transistor is connected with controlling IC, second end of field effect transistor is connected with power circuit, by controlling the time ratio of the turn-on and turn-off of the master switch of the Duty ratio control control module of field effect transistor, control the output voltage of power circuit further.The commutation diode of voltage regulation unit is connected with power circuit, it is arranged between power circuit and control module, the output voltage of power circuit is carried out single-phase output, be used for exporting feedback voltage to control module, voltage regulation unit performs loop compensation, obtains loop compensation parameter.Preferably, the control module of voltage regulation unit is the Topology Switch power supply of SEPIC, controlled the time ratio of the turn-on and turn-off of the master switch of Switching Power Supply by control IC according to loop compensation state modulator field effect transistor, control the output voltage of power circuit further.Power circuit carries out unidirectional output by commutation diode to the output voltage of power circuit again, and export feedback voltage to control module, so that final the 3rd supply voltage that the most stably output normally works for target electrical equipment of commutation diode, improve the stability of the supply voltage of electrical equipment.
The power supply interface 40 of power supply device 100 receives the 3rd supply voltage of voltage regulation unit output, is that electrical equipment is powered by the 3rd supply voltage.
Preferably, the power supply interface 40 of power supply device 100 is connected with voltage regulation unit, for receiving the 3rd supply voltage of voltage regulation unit output, is that electrical equipment is powered by the 3rd supply voltage.Electrical equipment 200 includes power interface plate, The Cloud Terrace master board, movement keyset and movement.Specifically, power interface plate is provided with the voltage regulation unit of electric supply installation；The Cloud Terrace master control borad is connected with the power supply interface of power supply device by slip ring；Movement keyset, is connected with The Cloud Terrace master control borad by patchcord；Movement, is connected with movement keyset by FPC.
The adapter of power supply device 100 is connected to power supply, the input voltage of power supply is converted into the first supply voltage, then the first supply voltage is received by the input of the transmission cable of power supply device 100, due to the transmission on transmission cable of impedance influences first supply voltage of power network fluctuation or transmission cable, or, the impedance of power network fluctuation and transmission cable affects the transmission on transmission cable of first supply voltage simultaneously, the voltage making the outfan of transmission cable is not the first supply voltage, it is impossible to for the supply voltage to electrical equipment 200 power supply.Now, the output end voltage of transmission cable is the second supply voltage.By the voltage regulation unit on the power interface plate of electrical equipment 200, second supply voltage is performed voltage stabilizing to process, obtain the 3rd supply voltage that electrical equipment 200 is required when normal work, by the power supply interface of electric supply installation, the 3rd supply voltage is delivered to by slip ring the The Cloud Terrace master control borad of electrical equipment 200, the The Cloud Terrace master control borad of electrical equipment 200 starts work after receiving the 3rd supply voltage, and the movement keyset being controlled electrical equipment 200 by patchcord is worked.Preferably, the movement keyset of electrical equipment 200 is connected by FPC with the movement of electrical equipment 200, and FPC distribution density is high, lightweight, thickness is thin, bent, so that electrical equipment 200 has the reliability of height in different operating environments.
nullThe movement of electrical equipment 200 operationally can also control the movement keyset work of electrical equipment 200 further by the output voltage of movement，The The Cloud Terrace master control borad that the output voltage of the movement keyset of electrical equipment 200 controls spherical camera further by patchcord works，The interface board that the output voltage of the The Cloud Terrace master control borad of spherical camera controls electrical equipment 200 further by slip ring works，Preferably，Control the voltage regulation unit work on the interface board of electrical equipment 200，So that the stable operating voltage of electrical equipment 200 is at the 3rd supply voltage，Improve the stability of the supply voltage of electrical equipment 200，Electrical equipment 200 is made normally to work under the 3rd supply voltage，It is achieved thereby that electrical equipment 200 also can normally work in the case of the impedance of power network fluctuation and transmission cable is big，Expand the scope of application of electrical equipment 200.
The modules of electrical equipment is powered by the electric power system of this embodiment by power supply device, and is normally worked the 3rd required supply voltage in electrical equipment by the voltage stabilization of electrical equipment, thus improves the stability of the supply voltage of electrical equipment.
Fig. 6 is the schematic diagram of the electric power system according to this utility model the second embodiment.It should be noted that the embodiment of this utility model can be as the preferred embodiment of the electric power system of this utility model first embodiment.As shown in Figure 6, this electric power system includes: adapter 10, transmission cable 20, power interface plate 21, The Cloud Terrace master control borad 22, movement keyset 23 and movement 24.
Preferably, the electrical equipment of this embodiment is ball-shaped camera, and ball-shaped camera includes power interface plate 21, The Cloud Terrace master board 22, movement keyset 23 and movement 24.Adapter 10 and transmission cable 20 belong to a part for electric supply installation.Adapter 10 is connected to power supply, it is thus achieved that input voltage be stable civil power AC220V voltage.After the AC220V voltage receiving power supply, the AC220V voltage of power supply is changed, obtains the first supply voltage, that is, DC12V voltage.DC12V voltage is the normal working voltage of ball-shaped camera.Transmission cable 20 is connected with the outfan of adapter 10, and the input terminal voltage of transmission cable 20 is DC12V voltage, and the output end voltage of transmission cable 20 is the second supply voltage.Due to the transmission on transmission cable 20 of the impedance influences DC12V voltage of power network fluctuation or transmission cable, or, the impedance of power network fluctuation and transmission cable 20 affects the transmission on transmission cable 20 of the DC12V voltage simultaneously, the voltage making the outfan of transmission cable 20 is not DC12V voltage, ball-shaped camera can not be powered, now, the output end voltage of transmission cable 20 is the second supply voltage.Preferably, the second supply voltage is the low-voltage less than the 3rd supply voltage, and voltage regulation unit is that the second supply voltage can as little as DC6V for low-voltage execution voltage stabilizing processes the voltage regulation unit obtaining the 3rd supply voltage.
The voltage regulation unit of electric supply installation is arranged on the power interface plate 21 of ball-shaped camera.Voltage regulation unit is connected with the outfan of transmission cable 20, the second supply voltage is performed voltage stabilizing and processes, and obtains the DC12V voltage that ball-shaped camera is required when normal work, and alternatively, this voltage regulation unit needs the electrical equipment of DC12V power voltage supply for other.The power supply interface of electric supply installation is connected with the voltage regulation unit of electric supply installation, and DC12V voltage is delivered to by slip ring the The Cloud Terrace master control borad 22 of ball-shaped camera by the power supply interface of electric supply installation, and The Cloud Terrace master control borad 22 starts work after receiving DC12V voltage.The Cloud Terrace master control borad 22 controls movement keyset 23 by patchcord and works, and movement keyset 23 is connected by FPC with movement 24.Movement 24 operationally can also control movement keyset 23 by the output voltage of movement 24 further and work, the output voltage of movement keyset 23 controls The Cloud Terrace master control borad 22 further by patchcord and works, the output voltage of The Cloud Terrace master control borad 22 controls the voltage regulation unit on power interface plate 21 further by slip ring and works, make the stable operating voltage of ball-shaped camera at DC12V voltage, so that ball-shaped camera is in the case of the impedance of power network fluctuation and transmission cable is big, also normally can work under the running voltage of DC12V voltage, expand the scope of application of ball-shaped camera.
Alternatively, when the adapter 10 of electric supply installation is connected to power supply, when power supply is highly unstable voltage to the input voltage of adapter, such as, when solar electric power supply system is unstable voltage to the input voltage of adapter, unstable voltage can also be converted by this electric supply installation, then performs voltage stabilizing process, and then obtains the supply voltage that electrical equipment is required when normal work.
Ball-shaped camera is powered by the electric power system of this embodiment by power supply device, and the DC12V voltage that the output voltage stabilization of ball-shaped camera is normally worked required at ball-shaped camera, thus improve the stability of the supply voltage of ball-shaped camera, expand the scope of application of ball-shaped camera.
Embodiment of the present utility model increases voltage regulation unit at the power interface plate of electrical equipment, makes electrical equipment also can obtain stable supply voltage quickly and accurately in the case of power network fluctuation and transmission line impedance are lost greatly.This voltage regulation unit can also be applied in other electrical equipments needing burning voltage to power.By the interpolation of this voltage regulation unit, making electrical equipment be operated under special occasions, such as, electrical equipment can use under the adverse circumstances that input voltage is highly unstable.
Obviously, those skilled in the art should be understood that, above-mentioned of the present utility model each module can realize with general calculating device, they can concentrate on single calculating device, or it is distributed on the network that multiple calculating device is formed, alternatively, they can realize with calculating the executable program code of device, thus, can be stored in storing in device and be performed by calculating device, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, this utility model is not restricted to the combination of any specific hardware and software.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (11)
1. an electric supply installation, it is characterised in that including:
Adapter, for being converted to the first supply voltage by the input voltage of power supply；
Transmission cable, the input terminal voltage of described transmission cable is described first supply voltage, and the output end voltage of described transmission cable is the second supply voltage；
Voltage regulation unit, processes for described second supply voltage is performed voltage stabilizing, obtains the 3rd supply voltage that target electrical equipment is required when normal work；And
Power supply interface, being used for by described 3rd supply voltage is that described target electrical equipment is powered.
Device the most according to claim 1, it is characterised in that described voltage regulation unit includes:
Interface module, is used for receiving described second supply voltage；
Power circuit, for described second supply voltage is performed power conversion, obtains the 3rd supply voltage；
Control module, is used for controlling described power circuit and exports described 3rd supply voltage；And
Commutation diode, for described 3rd supply voltage of unidirectional output to described power supply interface.
Device the most according to claim 2, it is characterised in that described interface module includes:
Interface, for receiving the voltage swing described second supply voltage in preset range；And
Interface protective circuit, the offer chip for described electric supply installation is protected.
Device the most according to claim 2, it is characterized in that, described commutation diode is arranged between described power circuit and described control module, is used for exporting feedback voltage to described control module, wherein, described voltage regulation unit is used for performing loop compensation and obtains loop compensation parameter.
Device the most according to claim 4, it is characterised in that described control module includes:
Control IC, for described control module being performed control according to described loop compensation parameter；And
Field effect transistor, for being controlled the time ratio of the turn-on and turn-off of described control module.
Device the most according to claim 2, it is characterised in that described control module is control module based on dcdc converter.
Device the most according to claim 2, it is characterised in that described voltage regulation unit is arranged on the power interface plate of described target electrical equipment.
Device the most according to claim 1, it is characterised in that described target electrical equipment includes slip ring, described power supply interface is that described target device is powered by described slip ring.
Device the most according to claim 1, it is characterised in that described second supply voltage is the low-voltage less than described 3rd supply voltage, described voltage regulation unit is for the execution voltage stabilizing of described low-voltage processes the voltage regulation unit obtaining described 3rd supply voltage.
10. an electric power system, it is characterised in that including:
Electrical equipment；And
Electric supply installation according to any one of claim 1 to 9, for powering to described electrical equipment.
11. systems according to claim 10, it is characterised in that described electrical equipment is spherical camera, described spherical camera includes:
Power interface plate, the voltage regulation unit of described electric supply installation is arranged on described power interface plate；
The Cloud Terrace master control borad, is connected by the power supply interface of slip ring with described electric supply installation；
Movement keyset, is connected with described The Cloud Terrace master control borad by patchcord；And
Movement, is connected with described movement keyset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979220.3U CN205430075U (en) | 2015-11-30 | 2015-11-30 | Power supply unit and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979220.3U CN205430075U (en) | 2015-11-30 | 2015-11-30 | Power supply unit and power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN205430075U true CN205430075U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520979220.3U Active CN205430075U (en) | 2015-11-30 | 2015-11-30 | Power supply unit and power supply system |
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| CN (1) | CN205430075U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356965A (en) * | 2016-09-12 | 2017-01-25 | 国网上海市电力公司 | Power supply system matchable with various vehicles for charging |
| CN109921629A (en) * | 2019-03-14 | 2019-06-21 | 广州市红鹏直升机遥感科技有限公司 | Holder for aerial photographing power supply system |
| CN115086562A (en) * | 2022-07-25 | 2022-09-20 | 荣耀终端有限公司 | Power supply circuit, power supply control method and electronic equipment |
-
2015
- 2015-11-30 CN CN201520979220.3U patent/CN205430075U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356965A (en) * | 2016-09-12 | 2017-01-25 | 国网上海市电力公司 | Power supply system matchable with various vehicles for charging |
| CN109921629A (en) * | 2019-03-14 | 2019-06-21 | 广州市红鹏直升机遥感科技有限公司 | Holder for aerial photographing power supply system |
| CN115086562A (en) * | 2022-07-25 | 2022-09-20 | 荣耀终端有限公司 | Power supply circuit, power supply control method and electronic equipment |
| CN115086562B (en) * | 2022-07-25 | 2023-01-17 | 荣耀终端有限公司 | Power supply circuit, power supply control method and electronic equipment |
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