CN107659125A - Power supply, integrated form power supply and illuminator applied to multichannel loading - Google Patents
Power supply, integrated form power supply and illuminator applied to multichannel loading Download PDFInfo
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- CN107659125A CN107659125A CN201710874812.2A CN201710874812A CN107659125A CN 107659125 A CN107659125 A CN 107659125A CN 201710874812 A CN201710874812 A CN 201710874812A CN 107659125 A CN107659125 A CN 107659125A
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- 210000001503 joint Anatomy 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 238000012986 modification Methods 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides a kind of power supply, integrated form power supply and illuminator applied to multichannel loading, wherein, power supply includes the first connector, at least one insulating power supply, at least one non-isolated power supply.First connector is electrically connected with least one insulating power supply and at least one non-isolated power supply, and for being electrically connected with controller, with by receiving regulation of the power control signal realization at least one insulating power supply and the power supply state of at least one non-isolated power supply from controller.At least one insulating power supply and at least one non-isolated power supply connect corresponding load circuit respectively, are powered for load circuit, and the working condition of the load circuit according to the power supply state control connection of itself.By integrating insulating power supply, non-isolated power supply simultaneously in a power supply, the safety requirement of power supply had both been met, has improved the whole work efficiency of power supply again.
Description
Technical Field
The invention relates to the technical field of lighting, in particular to a power supply applied to a multi-path load, an integrated power supply and a lighting lamp.
Background
The interior of the lamp usually has a plurality of same or different light source loads (or light source modules), and at present, the lamp is usually controlled and powered by at least two independent power supplies and a control module independent of the power supplies. In this way, when the power supply and the control module of the lamp are assembled, not only the light source load and the corresponding power supply need to be connected separately, but also the control module and the corresponding power supply need to be connected separately, and the assembling process and the debugging process are complex. If the light source load and the power supply are connected wrongly, power mismatching can occur, so that the light source load cannot be lightened, and if the control module and the power supply are connected wrongly, logic confusion can occur, so that the light source load cannot be lightened.
Therefore, the connection mode not only makes the internal connection of the lamp complex and disordered and is easy to have wrong connection, but also causes the lamp to have an EMI (Electromagnetic Interference) problem due to the complex connection because the power supply and the installation position of the light source load of different lamps are different.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a power supply applied to a multi-load, an integrated power supply, and a lighting fixture, which overcome or at least partially solve the above problems.
According to an aspect of the present invention, there is provided a power supply applied to multiple loads, including: a first connector, at least one isolated power supply, and at least one non-isolated power supply in parallel with the at least one isolated power supply, wherein,
the first connector is electrically connected with the at least one isolated power supply and the at least one non-isolated power supply and is used for being electrically connected with the controller so as to adjust the power supply state of the at least one isolated power supply and the at least one non-isolated power supply by receiving a power supply control signal from the controller;
the at least one isolation power supply and the at least one non-isolation power supply are respectively connected with corresponding load circuits to supply power to the load circuits, and the working states of the connected load circuits are controlled according to the power supply states of the load circuits;
the at least one isolated power supply, the at least one non-isolated power supply, and the first connector are all disposed on a same circuit board.
Optionally, the power supply applied to the multiple loads further includes:
and the controller is electrically connected with the first connector, receives an external control signal from the outside, converts the external control signal into a power supply control signal corresponding to each load circuit, and transmits the power supply control signal to the at least one isolated power supply and/or the at least one non-isolated power supply through the first connector so as to control the power supply state of the at least one isolated power supply and/or the at least one non-isolated power supply according to a preset control rule by using the power supply control signal.
Optionally, the controller is provided with a second connector, electrically connected to the external device, and configured to receive a control signal from the external device and convert the control signal of the external device into a power control signal corresponding to each load circuit; or
The controller is provided with a wireless signal receiver which receives wireless control signals from external equipment and converts the wireless control signals of the external equipment into power supply control signals corresponding to each load circuit. Optionally, the power supply state includes:
a switching state of the at least one isolated power supply and/or the at least one non-isolated power supply; and/or
An output current magnitude of the at least one isolated power supply and/or the at least one non-isolated power supply.
Optionally, after the controller converts the external control signal into a power control signal corresponding to each load circuit, the controller controls the switching state of the at least one isolated power supply and/or the at least one non-isolated power supply by using a level property of the power control signal, where the level property refers to a high-low state of a level.
Optionally, if the power control signal is a preset on level, the controller controls the on/off state of the at least one isolated power supply and/or the at least one non-isolated power supply to be an on state by using the power control signal, and further controls the working state of a load circuit connected to the at least one isolated power supply and/or the at least one non-isolated power supply to be a working state;
if the power supply control signal is a preset closing level, the controller controls the on-off state of the at least one isolation power supply and/or the at least one non-isolation power supply to be a closing state by using the power supply control signal, and further controls the working state of a load circuit connected with the at least one isolation power supply and/or the at least one non-isolation power supply to be a stop working state.
Optionally, after the controller converts the external control signal into a power control signal corresponding to each load circuit, the controller adjusts the output current of the at least one non-isolated power supply and/or the at least one non-isolated power supply by using the duty ratio of the power control signal.
Optionally, if the duty ratio of the power control signal changes, the controller adjusts the output current of the at least one isolated power supply and/or the at least one non-isolated power supply according to a preset rule by using the power control signal.
Optionally, the controller is further provided with a third connector, and the third connector is butted with the first electrical connector of the power supply, so as to electrically connect the controller with the at least one isolated power supply and the at least one non-isolated power supply.
Optionally, the controller includes an interface circuit, the interface circuit is connected to the third connector, and the controller converts the external control signal into a power control signal corresponding to each load circuit by using the interface circuit, and transmits the power control signal to the at least one isolated power supply and/or the at least one non-isolated power supply via the third connector and the first connector.
Optionally, the power supply applied to the multiple loads comprises:
the power supply comprises an isolation power supply and two non-isolation power supplies which are parallel to the isolation power supply, wherein the isolation power supply and the two non-isolation power supplies are respectively connected with corresponding load circuits.
Optionally, the power supply further comprises a PFC circuit and an auxiliary power supply circuit connected with the PFC circuit, wherein,
the PFC circuit receives power supplied by an external power supply and utilizes the power supplied by the external power supply to respectively supply power to the auxiliary power supply circuit, the at least one isolated power supply, the at least one non-isolated power supply and each load circuit;
the auxiliary power supply circuit receives power supplied by the PFC circuit and respectively supplies power to the at least one isolated power supply, the at least one non-isolated power supply and the controller.
Optionally, the method further comprises:
and the over-temperature protection circuit is connected with the auxiliary power supply circuit and controls the output state of the auxiliary power supply circuit so as to cut off the power supply of the auxiliary power supply circuit to the at least one isolation power supply and the at least one non-isolation power supply when the temperature of the auxiliary power supply circuit exceeds the preset temperature.
Optionally, the external control signal includes a wireless control signal or a switch sub-control signal sent by an external control device.
Optionally, the load in the load circuit includes a light source device or a light source module.
According to another aspect of the present invention, there is also provided an integrated power supply, comprising a housing with an external interface, a power supply applied to multiple loads, a circuit board and a controller; wherein,
the power supply applied to the multipath load comprises at least one isolated power supply and at least one non-isolated power supply, and the at least one isolated power supply and the at least one non-isolated power supply are accommodated in the shell and assembled on the circuit board;
the controller is electrically connected to the circuit board and configured to transmit a power control signal to the at least one isolated power source and/or the at least one non-isolated power source to control a power supply state of the at least one isolated power source and/or the at least one non-isolated power source.
The controller is integrated on the circuit board and contained in the shell, and the electrical connection between the controller and the at least one isolation power supply and the at least one non-isolation power supply is realized through the circuit board.
Optionally, a first connector is disposed on the circuit board and electrically connected to the at least one isolated power supply and the at least one non-isolated power supply;
the controller is provided with a third connector corresponding to the first connector, and the third connector is in butt joint with the first connector so as to realize the electrical connection between the controller and the at least one isolation power supply and the at least one non-isolation power supply.
Optionally, the housing includes a housing top cover and a housing bottom cover, and the first connector electrically connected to the circuit board is disposed on the housing top cover.
According to yet another aspect of the present invention, there is also provided a lighting fixture, comprising:
a plurality of light source devices or a plurality of light source modules;
the integrated power supply mentioned in any of the above embodiments is respectively connected to the plurality of light source devices or the plurality of light source modules, supplies power to the plurality of light source devices or the plurality of light source modules, and controls the operating states of the plurality of light source devices or the plurality of light source modules.
Optionally, the working states of the plurality of light source devices or the plurality of light source modules include:
the on and off states of the light source devices or the light source modules;
the light state of the colors of the plurality of light source devices or the plurality of light source modules; and
and the brightness of the light source devices or the light source modules is in a bright and dark state.
In an embodiment of the invention, a power supply applied to a multi-path load comprises a first connector, at least one isolated power supply and at least one non-isolated power supply in parallel with the at least one isolated power supply, wherein the at least one isolated power supply, the at least one non-isolated power supply and the first connector are all arranged on the same circuit board. The first connector is electrically connected with the at least one isolation power supply and the at least one non-isolation power supply and is used for being electrically connected with the controller so as to adjust the power supply state of the at least one isolation power supply and the at least one non-isolation power supply by receiving a power supply control signal from the controller. The at least one isolation power supply and the at least one non-isolation power supply are respectively connected with the corresponding load circuits to supply power to the load circuits, and the working states of the connected load circuits are controlled according to the power supply states of the load circuits. Therefore, the embodiment of the invention integrates the isolated power supply and the non-isolated power supply, namely, the isolated power supply and the non-isolated power supply are integrated in one power supply at the same time, thereby not only meeting the safety requirement of the power supply, but also improving the overall working efficiency of the power supply. Moreover, for the circuit with multiple paths of loads, the power supply and the control of a plurality of load circuits can be completed by only one power supply, so that the connection between the load circuits and the power supply is clearer and simpler, the circuit assembly and debugging are facilitated, and the assembly time of the power supply is saved.
Further, compared with a traditional power supply mode that a plurality of load circuits use a plurality of power supply sources, the embodiment of the invention greatly reduces the production cost of the power supply sources and saves resources.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram illustrating a power supply applied to multiple loads according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing a power supply structure applied to multiple loads according to another embodiment of the present invention;
FIG. 3 shows a schematic diagram of a third connector according to one embodiment of the present invention;
FIG. 4 illustrates a control schematic of an isolated power supply and a non-isolated power supply according to one embodiment of the invention; and
fig. 5 is an exploded view of an integrated power supply according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the above technical problem, an embodiment of the present invention provides a power supply applied to multiple paths of loads, where the power supply may be applied to a lighting system or a lighting fixture with multiple paths of light sources. Referring to fig. 1, a power supply applied to a multi-path load includes a first connector 1, at least one isolated power source (an isolated power source 2 is shown in fig. 1), and at least one non-isolated power source (a non-isolated power source 3 and a non-isolated power source 4 are shown in fig. 1) in parallel with the at least one isolated power source. The first connector 1 is electrically connected to at least one isolated power source and at least one non-isolated power source, and is configured to be electrically connected to a controller (not shown in fig. 1) to adjust a power supply state of the at least one isolated power source and the at least one non-isolated power source by receiving a power control signal from the controller. The at least one isolation power supply and the at least one non-isolation power supply are respectively connected with the corresponding load circuits to supply power to the load circuits, and the working states of the connected load circuits are controlled according to the power supply states of the load circuits. In this embodiment, the at least one isolated power supply, the at least one non-isolated power supply and the first connector 1 are all provided on the same circuit board (not shown in fig. 1). The at least one isolated power supply and the at least one non-isolated power supply are parallel, that is, the isolated power supply and the non-isolated power supply work independently and do not influence each other. In addition, the number of the isolated power supplies and the number of the non-isolated power supplies may be any number, and this is not particularly limited in the embodiment of the present invention.
With continued reference to fig. 1, in an embodiment of the present invention, fig. 1 includes three loads, two non-isolated power supplies (i.e., non-isolated power supplies 3 and 4), and an isolated power supply (i.e., isolated power supply 2), where the a load and the B load are respectively connected to the non-isolated power supply 4 and the non-isolated power supply 3, the C load is connected to the isolated power supply 2, and an isolation zone is formed near the isolated power supply 2 and the C load connected thereto, that is, the isolation zone of the entire power supply system is located near the isolated power supply and the C load.
The embodiment of the invention integrates the isolated power supply and the non-isolated power supply, namely, the isolated power supply and the non-isolated power supply are integrated in one power supply at the same time, thereby not only meeting the safety requirement of the power supply, but also improving the overall working efficiency of the power supply. Moreover, for the circuit with multiple paths of loads, the power supply and the control of a plurality of load circuits can be completed by only one power supply, so that the connection between the load circuits and the power supply is clearer and simpler, the assembly and the debugging of the circuit are facilitated, and the assembly time of the power supply is saved. Further, compared with a traditional power supply mode that a plurality of load circuits use a plurality of power supply sources, the embodiment of the invention greatly reduces the production cost of the power supply sources and saves resources.
Referring to fig. 2, in an embodiment of the present invention, the power supply applied to the multi-path load further includes a controller 11, and the controller 11 is electrically connected to a first connector (not shown in fig. 2), so as to realize connection with the isolated power source 2, the non-isolated power source 3, and the non-isolated power source 4. The controller 11 receives an external control signal from the outside, converts the external control signal into a power control signal corresponding to each load circuit, and transmits the power control signal to at least one isolated power source (such as the isolated power source 2 shown in fig. 2) and/or at least one non-isolated power source (such as the non-isolated power source 3 and the non-isolated power source 4 shown in fig. 2) through the first connector, so as to control the power supply state of the at least one isolated power source and/or the at least one non-isolated power source according to a preset control rule by using the power control signal.
In this embodiment, the isolated power supply 2, the non-isolated power supply 3, and the non-isolated power supply 4 are independent of each other. For example, after receiving the external control signal, the controller 11 converts the external control signal into three power control signals, and controls the power supply states of the isolated power supply 2, the non-isolated power supply 3, and the non-isolated power supply 4 by using the three power control signals.
In this embodiment, the power supply state may be a switch state of the isolated power supply and/or the non-isolated power supply, or may be an output current magnitude of the isolated power supply and/or the non-isolated power supply, that is, the controller 11 may control the switch state of the isolated power supply and/or the non-isolated power supply, or may adjust the magnitude of the output current of the isolated power supply and/or the non-isolated power supply.
In an embodiment of the present invention, the controller 11 controls the power supply status of the isolated power supply and/or the non-isolated power supply according to a preset control rule by using the power control signal. The preset control rule may be that after the controller 11 converts the external control signal into the power control signal corresponding to each load circuit, the switch state of the isolated power supply and/or the non-isolated power supply is controlled by using the level property of the power control signal, where the level property refers to the high-low state of the level.
For example, referring to fig. 2, if the power control signal is at a preset on level, the controller 11 uses the power control signal to control the switching state of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to be an on state, and further controls the operating state of the load circuit C connected to the isolated power supply 2 to be an operating state, and/or controls the operating state of the load circuit B (a) connected to the non-isolated power supply 3 (non-isolated power supply 4) to be an operating state. If the power control signal is a preset off level, the controller 11 controls the on/off state of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to be an off state by using the power control signal, and further controls the working state of the load circuit C connected with the isolated power supply 2 to be a stop working state, and/or controls the working state of the load circuit B (circuit a) connected with the non-isolated power supply 3 (non-isolated power supply 4) to be a stop working state.
The preset turn-on level is an effective level value preset in advance, for example, if a level greater than or equal to 5V is predefined as an effective level, the size of the preset turn-on level is 5V. When the level value of the power supply control signal is equal to or greater than 5V, the controller 11 controls the switching state of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to be in an on state. The preset off level is an invalid level value preset in advance, for example, if a level smaller than 3V is predefined as an invalid level, the preset on level is 3V. When the level value of the power supply control signal is less than 3V, the controller 11 controls the switching state of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to be the off state.
In another embodiment of the present invention, the controller 11 uses the power control signal to control the power supply states of the isolated power supply and/or the non-isolated power supply according to a preset control rule. The preset control rule may also be that after the controller 11 converts the external control signal into the power control signal corresponding to each load circuit, the duty ratio of the power control signal is used to adjust the output current of the non-isolated power supply and/or the non-isolated power supply.
For example, referring to fig. 2, if the duty ratio of the power control signal varies, the controller 11 may adjust the output current of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) according to a preset rule by using the power control signal. The preset rule may be that when the duty ratio of the power control signal becomes larger, the controller 11 adjusts the output current of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to increase. Alternatively, the preset rule may be that when the duty cycle of the power control signal becomes larger, the controller 11 adjusts the output current of the isolated power supply 2 and/or the non-isolated power supply 3 (non-isolated power supply 4) to decrease. In practical applications, the requirements of the power supply may be different and the preset rules may also be different, and the preset rules mentioned in this embodiment are not specifically limited in the embodiment of the present invention.
In addition, the controller 11 may also control the power supply state of the isolated power supply and/or the non-isolated power supply according to other preset control rules, which is not specifically limited in this embodiment of the present invention.
In an embodiment of the present invention, the controller 11 may be provided with a second connector (not shown in fig. 2) electrically connected to an external device (not shown in fig. 2), and configured to receive a control signal from the external device and convert the control signal into a power control signal corresponding to each load circuit. For example, the controller 11 may receive a switch sub-control signal sent by the sub-control switch from an external device by using the second connector, and the controller 11 converts the switch sub-control signal to obtain the power control signal.
In another embodiment of the present invention, the controller 11 is provided with a wireless signal receiver (not shown in fig. 2) for receiving a wireless control signal from an external device and converting the wireless control signal from the external device into a power control signal corresponding to each load circuit. For example, the controller 11 may receive a wireless control signal sent by an external remote control device by using a wireless signal receiver, and the controller 11 converts the wireless control signal into a power control signal.
In an embodiment of the present invention, a control interface 111 is disposed on the controller 11, a third connector (not shown in fig. 2) is disposed in the control interface 111, and the third connector is butted with the first electrical connector of the power supply, so as to electrically connect the controller with at least one isolated power supply and at least one non-isolated power supply.
Referring to the third connector shown in fig. 3, which is provided with a plurality of connection terminals, the first connector 1 on the power supply source shown in fig. 1 is also provided with corresponding connection terminals (not shown in fig. 1). The connection terminals of the third connector include a power supply terminal and a ground terminal, three control terminals (i.e., "control a", "control B", and "control C" three connection terminals, which are respectively used to transmit the power supply control signal converted by the controller 11 to the isolated power supply or the non-isolated power supply corresponding to the three load circuits a, B, and C, respectively), and two signal terminals (i.e., "signal 1" terminal and "signal 2" terminal, which are used to transmit a handshake signal between the isolated power supply or the non-isolated power supply and the controller, which is an auxiliary signal used to avoid a false detection condition when detecting the signal). In this embodiment, the number of the connection terminals in the third connector is only illustrative, and the number of the connection terminals is not specifically limited in the embodiment of the present invention.
With continued reference to fig. 2, in an embodiment of the present invention, the Power supply may further include a PFC (Power factor correction) circuit 5 and an auxiliary Power circuit 6 connected to the PFC circuit 5, where the PFC circuit 5 is configured to receive Power from an external Power source (not shown in the figure) and use the Power from the external Power source to supply Power to the auxiliary Power circuit 6, the isolated Power source 2, the non-isolated Power source 3 (non-isolated Power source 4), and each load circuit. The auxiliary power supply circuit 6 is configured to receive power supplied by the PFC circuit 5, and supply power to the isolated power supply 2, the non-isolated power supply 3 (non-isolated power supply 4), and the controller 11. The isolated power supply 2 and the non-isolated power supply 3 (non-isolated power supply 4) share one PFC circuit 5 and one auxiliary power supply circuit 6.
In this embodiment, the PFC circuit 5 may adopt a BOOST circuit, i.e., a BOOST converter circuit. Where power factor refers to the ratio of real power divided by total power consumption (apparent power). Basically, the power factor can measure the effective utilization degree of the power, and when the power factor value is larger, the power utilization rate is higher. The power factor correction is to improve the power factor of the electric equipment. Namely, the PFC circuit 5 in the embodiment of the present invention is used to improve the power factor of the isolated power supply and the non-isolated power supply
In an embodiment of the present invention, the power supply may further include an over-temperature protection circuit 7, where the over-temperature protection circuit 7 is connected to the auxiliary power circuit 6, and is used to control the power supply state of the auxiliary power circuit 6, so as to prevent the auxiliary power circuit 6 from damaging the isolated power 2, the non-isolated power 3 (the non-isolated power 4), and the whole circuit due to an over-high temperature during operation. Specifically, when the temperature of the auxiliary power supply circuit 6 exceeds a preset temperature, the auxiliary power supply circuit 6 is cut off from supplying power to the isolated power supply 2 and the non-isolated power supply 3 (non-isolated power supply 4), so that the auxiliary power supply circuit 6 is in a non-power supply state. The preset temperature may be a maximum temperature allowed by the auxiliary power supply circuit 6 during normal operation, and a specific temperature value of the preset temperature needs to be determined according to the auxiliary power supply circuits 6 of different specifications.
Referring to fig. 2, in order to more clearly embody the embodiment of the present invention, a specific description will now be made of a power supply process of a power supply source, wherein an AC input in fig. 2 refers to a power supply of an external power source, for example, 220V commercial power.
When the power supply is powered on by the external power supply input, the PFC circuit 5 and the auxiliary power supply circuit 6 are first started, and after the start is completed, the auxiliary power supply circuit 6 supplies power to the power supply chips (the non-isolated power supply 4, the non-isolated power supply 3, and the isolated power supply 2) corresponding to the A, B, C three loads, and supplies power to the controller 11. The PFC circuit 5 is a main circuit, i.e., the isolated power supply 2, the non-isolated power supply 3, and the non-isolated power supply 4, and each power supply drives A, B, C three loads respectively. In this embodiment, the load in the load circuit is a light source device or a light source module, but may also be other types of loads, which is not specifically limited in this embodiment of the present invention. When the load is a light source device or a light source module, the power supply in the embodiment of the invention can control the working state of the light source device or the light source module to be working or stopping working, and can also adjust the output current of the light source device or the light source module, thereby carrying out dimming, color modulation and power modulation on the light source device or the light source module. As shown in fig. 4, the current of the non-isolated/isolated power control chip is adjusted to further adjust the light of the light source devices or light source modules of the paths a and B or the path C, and the ON-OFF state (i.e., ON/OFF state) of the non-isolated/isolated power control chip is controlled to further control the operating states of the light source devices or light source modules of the paths a and B or the path C to be working or non-working.
After receiving the wireless control signal or the switch sub-control signal, the controller 11 converts the wireless control signal or the switch sub-control signal into three power supply control signals, and transmits the three power supply control signals to the isolated power supply 2, the non-isolated power supply 3 and the non-isolated power supply 4 through the first connector and the third connector, so as to control the switch state and/or the output current of each power supply according to a preset control rule. A. B, C the output current of any load can follow the change of the duty ratio of the power control signal to realize the adjustment of the current amplitude, i.e. adjust the output current of the load circuit. A. B, C the on-off state of any load can also be controlled by the preset off level and the preset on level of the power control signal. For example, when the duty ratio of the power control signal received by the isolation power supply 2 corresponding to the C-path load is increased, the output current of the isolation power supply 2 is increased, so that the output current of the C-path load adjusted by the isolation power supply 2 is also increased, and the light emitting effect of the light source device or the light source module of the C-path load is adjusted. For another example, when the power control signals received by the non-isolated power source 4 and the non-isolated power source 3 corresponding to the loads in the paths a and B are at the preset turn-off level, the non-isolated power source 4 and the non-isolated power source 3 corresponding to the loads in the paths a and B are turned off, and the loads in the paths a and B are controlled to stop working by the non-isolated power source 4 and the non-isolated power source 3.
Therefore, compared with the traditional mode that a plurality of power supplies are adopted in a plurality of load circuits for supplying power, the power supply provided by the embodiment of the invention adopts at least one isolated power supply or at least one non-isolated power supply integrated into a multi-path load for supplying power, and each isolated power supply or non-isolated power supply can share one input circuit, such as a filter circuit for filtering the externally-provided alternating current mains supply, a PFC circuit and the like, and can also share one auxiliary circuit, such as an auxiliary power supply circuit and an over-temperature protection circuit, so that the production cost of the power supply is greatly reduced. In addition, when the load adopts the light source device, the combination of multiple working states of the load circuit can be realized under the condition that one power supply is used by multiple paths of light source loads, and the light emitting effect, the switching state and the like of the light source devices in different load circuits can be adjusted at the same time.
Based on the same inventive concept, the embodiment of the present invention further provides an integrated power supply, and referring to fig. 5, the integrated power supply 10 includes a housing 101 having an external interface 1011, and a power supply 102, a circuit board 103 and a controller 11 applied to multiple loads. At least one isolated power supply (one isolated power supply 2 is shown in fig. 5) and at least one non-isolated power supply (a non-isolated power supply 3 and a non-isolated power supply 4 are shown in fig. 5) of the power supply 102 applied to the multi-path load are both accommodated in the housing 101 and assembled on the circuit board 103. The controller 11 is electrically connected to the circuit board 103 and configured to transmit a power control signal to the at least one isolated power source and/or the at least one non-isolated power source to control a power state of the at least one isolated power source and/or the at least one non-isolated power source.
In an embodiment of the present invention, the controller 11 may be disposed outside the housing 101, and the embodiment shown in fig. 5 is a case where the controller 11 is disposed outside the housing 101. The circuit board 103 is provided with a first connector (not shown) and electrically connected to at least one isolated power source and at least one non-isolated power source. Correspondingly, a third connector (not shown) corresponding to the first connector is disposed on the controller 11, and the third connector is in butt joint with the first connector, so as to electrically connect the controller 11 with at least one isolated power supply and at least one non-isolated power supply.
In another embodiment of the present invention, the controller 11 may also be disposed inside the housing 101, and the controller 11 is integrated on the circuit board 103 and is accommodated inside the housing 101, and the circuit board 103 is used to electrically connect with at least one isolated power supply and at least one non-isolated power supply.
In this embodiment, the housing 101 is L-shaped, thus forming a notch 1014. The controller 11 is small and can be filled in the gap 1014 and plugged with the integrated power supply 10.
The following embodiments are described by way of example of an integrated power supply 10 comprising one isolated power supply 2 and two non-isolated power supplies (i.e., non-isolated power supply 3 and non-isolated power supply 4).
With continued reference to fig. 5, in an embodiment of the invention, since the housing 101 is L-shaped, the housing 101 may include an L-shaped housing top cover 1012 and an L-shaped housing bottom cover 1013, the external connection interface 1011 is disposed at the position of the notch 1014 of the housing top cover 1012, and after the first connector is electrically connected to the circuit board 103, the first connector may be disposed at the position of the external connection interface 1011 of the housing top cover 1012. The third connector provided on the controller 11 is plugged with the first connector disposed in the external interface 1011. Also, the case top cover 1012 and the case bottom cover 1013 are fastened to each other so as to accommodate the isolated power supply 2, the non-isolated power supply 3, and the non-isolated power supply 4 inside the case 101.
In an embodiment of the present invention, the third connector of the controller 11 and the first connector of the circuit board 103 may be connected by a cable in addition to plugging. The cable includes a conductive wire and two connectors respectively disposed at two ends of the conductive wire, so as to connect the isolated power supply 2 (or the non-isolated power supply 3, or the non-isolated power supply 4) with the controller 11.
Referring to fig. 5, in an embodiment of the present invention, the controller 11 may be provided with a wireless signal receiver 110 for connecting an antenna, receiving a wireless control signal from an external device, and converting the wireless control signal of the external device into a power control signal corresponding to each load circuit. For example, the controller 11 may receive a wireless control signal transmitted by an external remote control device (not shown in fig. 5) by using the wireless signal receiver 110, and the controller 11 converts the wireless control signal into a power control signal.
In addition, the PTC circuit 5 is also accommodated inside the housing 101, and other circuits included in the power supply applied to multiple loads, such as an over-temperature protection circuit (not shown in fig. 5), an auxiliary power supply circuit (not shown in fig. 5), and the like, mentioned in the above embodiments, may also be accommodated inside the housing 101 to facilitate wiring connection between the circuits.
In the embodiment of the invention, when the power supply needs to be carried out on the multiple loads, the power supply of the multiple loads can be realized only by one integrated power supply. After the signal receiving interface of the controller receives the external control signal, the load circuit can be further controlled and adjusted. If the load in the load circuit is a light source device, the on or off state, the shade of color, the brightness, and the like of the light source device can be controlled.
Based on the same inventive concept, an embodiment of the present invention further provides an illumination fixture, including a plurality of light source devices or a plurality of light source modules, and the integrated power supply mentioned in any of the above embodiments, where the power supply is connected to the plurality of light source devices or the plurality of light source modules, respectively, and is capable of supplying power to the plurality of light source devices or the plurality of light source modules, and controlling the operating states of the plurality of light source devices or the plurality of light source modules, respectively.
The working states of the light source devices or the light source modules comprise the on or off states, the color depth, the brightness and the like of the light source devices or the light source modules.
In the embodiment of the invention, although the lighting lamp comprises a plurality of paths of light source loads, only one power supply is adopted, and the lighting lamp can achieve various light emitting effects by adjusting the state of the power supply, so that the cost of the power supply is saved, and the production cost of the lighting lamp is further saved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (20)
1. A power supply applied to a multipath load comprises a first connector, at least one isolated power supply and at least one non-isolated power supply in parallel with the at least one isolated power supply, wherein,
the first connector is electrically connected with the at least one isolated power supply and the at least one non-isolated power supply and is used for being electrically connected with the controller so as to adjust the power supply state of the at least one isolated power supply and the at least one non-isolated power supply by receiving a power supply control signal from the controller;
the at least one isolation power supply and the at least one non-isolation power supply are respectively connected with corresponding load circuits to supply power to the load circuits, and the working states of the connected load circuits are controlled according to the power supply states of the load circuits;
the at least one isolated power supply, the at least one non-isolated power supply, and the first connector are all disposed on a same circuit board.
2. The power supply applied to multiple loads according to claim 1, further comprising:
and the controller is electrically connected with the first connector, receives an external control signal from the outside, converts the external control signal into a power supply control signal corresponding to each load circuit, and transmits the power supply control signal to the at least one isolated power supply and/or the at least one non-isolated power supply through the first connector so as to control the power supply state of the at least one isolated power supply and/or the at least one non-isolated power supply according to a preset control rule by using the power supply control signal.
3. The power supply applied to multiple loads according to claim 2,
the controller is provided with a second connector which is electrically connected with external equipment, receives a control signal from the external equipment and converts the control signal of the external equipment into a power supply control signal corresponding to each load circuit; or
The controller is provided with a wireless signal receiver which receives wireless control signals from external equipment and converts the wireless control signals of the external equipment into power supply control signals corresponding to each load circuit.
4. The power supply source applied to multiple loads according to any one of claims 1 to 3, wherein the power supply state comprises:
a switching state of the at least one isolated power supply and/or the at least one non-isolated power supply; and/or
An output current magnitude of the at least one isolated power supply and/or the at least one non-isolated power supply.
5. The power supply applied to multiple loads according to claim 2 or 3,
and after the controller converts the external control signal into a power supply control signal corresponding to each load circuit, controlling the switching state of the at least one isolated power supply and/or the at least one non-isolated power supply by using the level property of the power supply control signal, wherein the level property refers to the high and low state of the level.
6. The power supply applied to multiple loads according to claim 5,
if the power supply control signal is a preset turn-on level, the controller controls the on-off state of the at least one isolation power supply and/or the at least one non-isolation power supply to be a turn-on state by using the power supply control signal, and further controls the working state of a load circuit connected with the at least one isolation power supply and/or the at least one non-isolation power supply to be working;
if the power supply control signal is a preset closing level, the controller controls the on-off state of the at least one isolation power supply and/or the at least one non-isolation power supply to be a closing state by using the power supply control signal, and further controls the working state of a load circuit connected with the at least one isolation power supply and/or the at least one non-isolation power supply to be a stop working state.
7. The power supply applied to multiple loads according to claim 2 or 3,
and after the controller converts the external control signal into a power supply control signal corresponding to each load circuit, the controller adjusts the output current of the at least one non-isolated power supply and/or the at least one non-isolated power supply by utilizing the duty ratio of the power supply control signal.
8. The power supply applied to multiple loads according to claim 7,
and if the duty ratio of the power supply control signal changes, the controller adjusts the output current of the at least one isolated power supply and/or the at least one non-isolated power supply according to a preset rule by using the power supply control signal.
9. The power supply applied to multiple loads according to claim 2 or 3,
the controller is further provided with a third connector, and the third connector is in butt joint with the first electric connector of the power supply so as to realize the electric connection between the controller and the at least one isolation power supply and the at least one non-isolation power supply.
10. The power supply applied to multiple loads according to claim 9,
the controller includes an interface circuit connected to the third connector, converts the external control signal into a power control signal corresponding to each load circuit using the interface circuit, and transmits the power control signal to the at least one isolated power supply and/or the at least one non-isolated power supply via the third connector and the first connector.
11. The power supply source applied to the multi-path load according to any one of claims 1 to 3, comprising:
the power supply comprises an isolation power supply and two non-isolation power supplies which are respectively parallel to the isolation power supply, wherein the isolation power supply and the two non-isolation power supplies are respectively connected with corresponding load circuits.
12. The power supply applied to multiple loads according to claim 2 or 3, further comprising a PFC circuit and an auxiliary power circuit connected to the PFC circuit, wherein,
the PFC circuit receives power supplied by an external power supply and utilizes the power supplied by the external power supply to respectively supply power to the auxiliary power supply circuit, the at least one isolated power supply, the at least one non-isolated power supply and each load circuit;
the auxiliary power supply circuit receives power supplied by the PFC circuit and respectively supplies power to the at least one isolated power supply, the at least one non-isolated power supply and the controller.
13. The power supply for multiple loads according to claim 12, further comprising:
and the over-temperature protection circuit is connected with the auxiliary power supply circuit and controls the output state of the auxiliary power supply circuit so as to cut off the power supply of the auxiliary power supply circuit to the at least one isolation power supply and the at least one non-isolation power supply when the temperature of the auxiliary power supply circuit exceeds the preset temperature.
14. The power supply applied to multiple loads according to any one of claims 1 to 3,
the load in the load circuit comprises a light source device or a light source module.
15. An integrated power supply comprising: the circuit board comprises a shell with an external interface, a power supply applied to a multi-path load, a circuit board and a controller; wherein,
the power supply applied to the multipath load comprises at least one isolated power supply and at least one non-isolated power supply, and the at least one isolated power supply and the at least one non-isolated power supply are accommodated in the shell and assembled on the circuit board;
the controller is electrically connected to the circuit board and configured to transmit a power control signal to the at least one isolated power source and/or the at least one non-isolated power source to control a power supply state of the at least one isolated power source and/or the at least one non-isolated power source.
16. The integrated power supply of claim 15,
the controller is integrated on the circuit board and contained in the shell, and the electrical connection between the controller and the at least one isolation power supply and the at least one non-isolation power supply is realized through the circuit board.
17. The integrated power supply of claim 15,
the circuit board is provided with a first connector which is electrically connected with the at least one isolation power supply and the at least one non-isolation power supply;
the controller is provided with a third connector corresponding to the first connector, and the third connector is in butt joint with the first connector so as to realize the electrical connection between the controller and the at least one isolation power supply and the at least one non-isolation power supply.
18. The integrated power supply of claim 17,
the shell comprises a shell top cover and a shell bottom cover, and a first connector electrically connected with the circuit board is arranged on the shell top cover.
19. A lighting fixture, comprising:
a plurality of light source devices or a plurality of light source modules;
the power supply according to any one of claims 1 to 14, wherein the power supply is connected to the plurality of light source devices or the plurality of light source modules, respectively, and is configured to supply power to the plurality of light source devices or the plurality of light source modules, and control the operating states of the plurality of light source devices or the plurality of light source modules.
20. A lighting fixture as recited in claim 19, wherein said plurality of light source devices or said plurality of light source modules comprise at least one of:
the on and off states of the light source devices or the light source modules;
the light state of the colors of the plurality of light source devices or the plurality of light source modules;
and the brightness of the light source devices or the light source modules is in a bright and dark state.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710874812.2A CN107659125A (en) | 2017-09-25 | 2017-09-25 | Power supply, integrated form power supply and illuminator applied to multichannel loading |
| PCT/CN2018/107381 WO2019057210A1 (en) | 2017-09-25 | 2018-09-25 | Power supply applied to multiple paths of loads, integrated power supply and illumination lamp |
| EP18858442.9A EP3675602B1 (en) | 2017-09-25 | 2018-09-25 | Power supply applied to multiple paths of loads, integrated power supply and illumination lamp |
| US16/828,580 US10863603B2 (en) | 2017-09-25 | 2020-03-24 | Power supply applied to multiple loads, integrated power supply and lighting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710874812.2A CN107659125A (en) | 2017-09-25 | 2017-09-25 | Power supply, integrated form power supply and illuminator applied to multichannel loading |
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| CN107659125A true CN107659125A (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710874812.2A Pending CN107659125A (en) | 2017-09-25 | 2017-09-25 | Power supply, integrated form power supply and illuminator applied to multichannel loading |
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| CN (1) | CN107659125A (en) |
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