CN221806990U - PoDL power supply circuit for broadcasting equipment and broadcasting equipment having the same - Google Patents
PoDL power supply circuit for broadcasting equipment and broadcasting equipment having the same Download PDFInfo
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- CN221806990U CN221806990U CN202420370268.3U CN202420370268U CN221806990U CN 221806990 U CN221806990 U CN 221806990U CN 202420370268 U CN202420370268 U CN 202420370268U CN 221806990 U CN221806990 U CN 221806990U
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- 230000005540 biological transmission Effects 0.000 abstract description 12
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- 238000005516 engineering process Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a PoDL power supply circuit of broadcasting equipment and broadcasting equipment with the PoDL power supply circuit, which specifically comprises: a main control module; the power supply equipment comprises a power supply control unit, a first protection unit and a first data exchange unit; the power receiving device comprises a power receiving control unit, a voltage regulating unit and a second data exchange unit; the first data exchange unit is in communication connection with the second data exchange unit through a twisted pair; the second data exchange unit is in communication connection with the broadcasting functional unit; the power supply module is electrically connected with the main control module and the power supply equipment; for supplying power to the main control module the device provides an initial power supply. The power supply circuit reduces the cable connection between the control equipment and each broadcasting equipment, can avoid crosstalk between the equipment and improves the stability of data transmission.
Description
Technical Field
The utility model belongs to the field of power over Ethernet, and particularly relates to a PoDL power supply circuit of broadcasting equipment and the broadcasting equipment with the PoDL power supply circuit.
Background
Conventionally, broadcasting devices generally use the form of wire connections in actual engineering to effect data exchange, while each broadcasting device also has an independent power supply line. However, as the scale of the broadcasting equipment is expanded, the scale of the wire cable connected with the broadcasting equipment is increased increasingly, so that the cost of the broadcasting equipment is increased, and the construction difficulty is increased. Secondly, since most broadcasting devices are independently powered, potential difference is easy to generate between different broadcasting devices, if the potential difference is too high, crosstalk phenomenon can occur, so that normal data exchange is interfered, and serious damage can be caused to an interface circuit of the device.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a PoDL power supply circuit of broadcasting equipment, which can reduce wire cables between the broadcasting equipment and the power supply equipment and improve the stability of data transmission.
In a first aspect, an embodiment of the present utility model provides a PoDL power supply circuit of a broadcasting device, including:
a main control module;
The power supply equipment comprises a power supply control unit, a first protection unit and a first data exchange unit; the controlled end of the power supply control unit is electrically connected with the main control module, the first protection unit is electrically connected with the input end of the power supply control unit, and the output end of the power supply control unit is electrically connected with the first data exchange unit; the first data exchange unit is in communication connection with the main control module;
The power receiving device comprises a power receiving control unit, a voltage regulating unit and a second data exchange unit, wherein the input end of the power receiving control unit is electrically connected with the output end of the power supply control unit through a twisted pair; the output end of the power receiving control unit is electrically connected with the input end of the voltage regulating unit, and the output end of the voltage regulating unit is electrically connected with the broadcasting functional unit; the first data exchange unit is in communication connection with the second data exchange unit through the twisted pair; the second data exchange unit is in communication connection with the broadcasting functional unit; the power supply apparatus is configured to provide an operating power supply to the power receiving apparatus;
The power supply module is electrically connected with the main control module and the power supply equipment; and the power supply module is used for providing initial power supply for the main control module and the power supply equipment.
In some embodiments of the utility model, the first protection unit includes a first resistor and a first switching tube; the first end of the first resistor is electrically connected with the power supply module, and the second end of the first resistor is electrically connected with the first end of the first switch tube; the controlled end of the first switching tube is electrically connected with the input end of the power supply control unit, and the second end of the first switching tube is electrically connected with the output end of the power supply control unit.
In some embodiments of the utility model, the power supply apparatus further comprises a buffer unit; the buffer unit comprises a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor and a second switch tube; the first end of the second resistor is electrically connected with the power module, and the second end of the second resistor is electrically connected with the power module, the buffer control end of the power supply control unit and the first end of the third resistor; the second end of the third resistor is electrically connected with the first end of the first capacitor and the controlled end of the second switching tube, and the second end of the first capacitor is electrically connected with the first end of the second switching tube and the first end of the third resistor; the second end of the third resistor is electrically connected with the first end of the fourth resistor, and the second end of the fourth resistor is electrically connected with the first end of the second capacitor; the second end of the second capacitor is electrically connected with the output end of the power supply control unit; the first end of the second switching tube is electrically connected with the first end of the fourth resistor, and the second end of the second switching tube is electrically connected with the first end of the fifth resistor; the second end of the fifth resistor is grounded.
In some embodiments of the utility model, the power supply apparatus further comprises a second protection unit; the second protection unit comprises a sixth resistor, a seventh resistor, an eighth resistor, a third capacitor, a third switching tube and a fourth switching tube; the first end of the sixth resistor is electrically connected with the input end of the circuit breaker, and the second end of the sixth resistor is electrically connected with the first end of the third capacitor and the controlled end of the third switching tube respectively; the second end of the third capacitor is electrically connected with the output end of the power supply control unit and the first end of the third switching tube respectively, and the second end of the third switching tube is electrically connected with the first end of the seventh resistor; the second end of the seventh resistor is grounded; the output end of the power supply control unit is also electrically connected with the first end of the fourth switching tube, and the second end of the fourth switching tube is electrically connected with the output end of the circuit breaker; the controlled end of the fourth switching tube is electrically connected with the first end of the eighth resistor; the second end of the eighth resistor is electrically connected with the power supply module.
In some embodiments of the utility model, the voltage regulating unit comprises a first voltage regulating circuit; the input end of the first voltage regulating circuit is electrically connected with the output end of the power receiving control unit, and the output end of the first voltage regulating circuit is electrically connected with the broadcasting functional unit.
In some embodiments of the utility model, the voltage regulating unit further comprises a second voltage regulating circuit; the input end of the second voltage regulating circuit is electrically connected with the output end of the first voltage regulating circuit, and the output end of the second voltage regulating circuit is electrically connected with the broadcasting functional unit.
In some embodiments of the present utility model, the power receiving control unit includes a power receiving control chip and a third protection unit; the third protection unit comprises a first diode, a second diode and a fifth switching tube; the anode ends of the first diode and the second diode are respectively and electrically connected with the output end of the power supply control unit, and the cathode ends of the first diode and the second diode are respectively and electrically connected with the input end of the power receiving control chip; the input end of the power receiving control chip is also electrically connected with the first end of the fifth switching tube, the gate control end of the power receiving control chip is electrically connected with the controlled end of the fifth switching tube, and the output end of the power receiving control chip is electrically connected with the second end of the fifth switching tube; the output end of the power receiving control chip is electrically connected with the voltage regulating unit.
In some embodiments of the present utility model, the power receiving apparatus further includes a fourth protection unit; the fourth protection unit comprises a sixth switching tube, a seventh switching tube, an eighth switching tube and a ninth switching tube; the first end of the sixth switching tube and the first end of the seventh switching tube are electrically connected with the detection port of the power receiving control chip, the second end of the sixth switching tube and the second end of the seventh switching tube are grounded, and the controlled end of the sixth switching tube and the controlled end of the seventh switching tube are electrically connected with the driving end of the pull-down door of the power receiving control chip; the first end of the sixth switching tube and the first end of the seventh switching tube are also electrically connected with the output end of the power supply control unit; the first end of the eighth switching tube and the first end of the ninth switching tube are electrically connected with the output end of the power supply control unit, the second end of the eighth switching tube and the second end of the ninth switching tube are grounded, and the controlled end of the eighth switching tube and the controlled end of the ninth switching tube are electrically connected with the active grid driving end.
In some embodiments of the utility model, the first data exchange unit comprises a first network chip and a first connector, and the second data exchange unit comprises a second network chip and a second connector; the first network chip is electrically connected with the first connector, and the second network chip is electrically connected with the second connector; the first connector and the second connector are communicatively connected by the twisted pair.
In a second aspect, an embodiment of the present utility model provides a broadcasting device, where the broadcasting device includes a PoDL power supply circuit of the broadcasting device according to any one of the embodiments of the foregoing aspects.
The PoDL power supply circuit of the broadcasting equipment has at least the following advantages: the PoDL power supply circuit of the broadcasting equipment provided by the utility model adopts the PoDL technology to supply power, and the Ethernet power supply equipment and the Ethernet power receiving equipment are connected through twisted pair lines, so that one-to-many power supply of the broadcasting equipment is realized. Through first data exchange chip and second data exchange chip, main control module both can communicate with broadcasting equipment under the condition of not additionally connecting the data line, has reduced the cable connection between control equipment and each broadcasting equipment, adopts the paired line simultaneously power supply and transmission data, can avoid the crosstalk between the equipment, improves data transmission's stability.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is a schematic block diagram of PoDL power supply circuitry of a broadcast device according to an embodiment of the utility model;
fig. 2 is a schematic diagram of PoDL power supply circuitry of a broadcast device according to an embodiment of the utility model;
Fig. 3 is a schematic diagram of a power supply device of a PoDL power supply circuit of a broadcasting device according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of a powered device of a PoDL power supply circuit of a broadcasting device according to an embodiment of the utility model;
Fig. 5 is a schematic diagram of a data exchange unit of a PoDL power supply circuit of a broadcasting device according to an embodiment of the present utility model.
Reference numerals: the power supply apparatus 100, the power supply control unit 110, the first protection unit 120, the buffer unit 130, the second protection unit 140, the first data exchange unit 150, the power receiving apparatus 200, the power receiving control chip 210, the first voltage adjusting circuit 220, the second voltage adjusting circuit 230, the third protection unit 240, the fourth protection unit 250, the second data exchange unit 260, and the twisted pair 300.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a plurality means one or more, and a plurality means two or more, and it is understood that greater than, less than, exceeding, etc. does not include the present number, and it is understood that greater than, less than, within, etc. include the present number. The description of first, second or third is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The PoDL power supply circuit of the broadcasting equipment provided by the utility model adopts the PoDL technology to supply power, and the Ethernet power supply equipment and the Ethernet power receiving equipment are connected through twisted pair lines, so that one-to-many power supply of the broadcasting equipment is realized. Through first data exchange chip and second data exchange chip, main control module both can communicate with broadcasting equipment under the condition of not additionally connecting the data line, has reduced the cable connection between control equipment and each broadcasting equipment, adopts the paired line simultaneously power supply and transmission data, can avoid the crosstalk between the equipment, improves data transmission's stability.
The concepts involved in the present utility model are explained below:
Ethernet: a Local Area Network (LAN) product group conforming to the IEEE 802.3 standard;
PoDL: a power technology standard specified by the Institute of Electrical and Electronics Engineers (IEEE) by which data can be transmitted and dc power can be provided simultaneously on a single pair of twisted wires;
IEEE 802.3: is a set of Institute of Electrical and Electronics Engineers (IEEE) standards defining the physical layer and data link layer for wired ethernet media access control;
PoE: power over Ethernet, power over ethernet;
SPoE: SINGLE PAIR Power over Ethernet, single pair power over ethernet;
PSE: power-Sourcing Equipment, a Power supply device for providing Power;
PD: powered Device, powered Device such as wireless AP, portable Device charger, card reader, camera, etc.;
twisted pair: TWISTED PAIR, TP is a transmission medium most commonly used in comprehensive wiring engineering, and consists of two copper wires with insulating protective layers. Two insulated copper wires are twisted together according to a certain density, and the electric wave radiated by each wire in transmission can be counteracted by the electric wave emitted by the other wire, so that the degree of signal interference is effectively reduced;
Surging: ELECTRICAL SURGE, which is a peak value exceeding a stable value instantly, including surge voltage and surge current;
PHY: physical, port Physical layer, an ethernet PHY is a chip that can send and receive ethernet data frames (frames).
The following describes specific apparatus according to an embodiment of the present utility model with reference to the drawings.
Referring to fig. 1 to 5, fig. 1 is a schematic block diagram of a PoDL power supply circuit of a broadcasting device according to an embodiment of the present utility model, where the power supply circuit specifically includes:
a main control module;
The power supply apparatus 100 includes a power supply control unit, a first protection unit 120, and a first data exchange unit 150; the controlled end of the power supply control unit is electrically connected with the main control module, the first protection unit 120 is electrically connected with the input end of the power supply control unit, and the output end of the power supply control unit is electrically connected with the first data exchange unit 150; the first data exchange unit 150 is in communication connection with the main control module;
The power receiving apparatus 200 includes a power receiving control unit, a voltage adjusting unit, and a second data exchange unit 260, an input end of the power receiving control unit and an output end of the power supply control unit are electrically connected through a twisted pair 300; the output end of the power receiving control unit is electrically connected with the input end of the voltage regulating unit, and the output end of the voltage regulating unit is electrically connected with the broadcasting functional unit; the first data exchange unit 150 is communicatively coupled to the second data exchange unit 260 via twisted pair 300; the second data exchange unit 260 is communicatively connected to the broadcast function unit; the power supply apparatus 100 is configured to supply an operating power source to the power receiving apparatus 200;
The power module is electrically connected with the main control module and the power supply equipment 100; for providing an initial power source to the main control module and the power supply apparatus 100.
The power supply device 100 according to the embodiment of the present utility model is a PSE device, the powered device 200 is a PD device, and the specific types of the power supply device 100 and the powered device 200 are not limited by the embodiment of the present utility model, and the twisted pair 300 shown in fig. 1 is the same twisted pair 300. The main control module may control the power supply of the PD device by the power supply control unit 110U1 through the first data exchange unit 150; the power supply apparatus 100 transmits power to the power supply apparatus 100 through the twisted pair 300; the first data exchange unit 150 and the second data exchange unit 260 are in communication connection through the same twisted pair 300, and the connection relationship between the power supply control unit 110 and the first data exchange unit 150, and between the power receiving control chip 210 and the second data unit can refer to fig. 2; the main control module may communicate with the second data exchange unit 260 through the above communication connection relationship, thereby implementing communication and control of the broadcasting function unit. The broadcasting function unit is used for representing any type of device or module for realizing the audio broadcasting function. The PSE device may adopt a multiport ethernet device, and may be connected to multiple PD devices simultaneously, where the PD device may be only one single broadcasting device, and the power receiving control chip 210U2, the voltage adjusting unit, and the second data exchange unit 260 are integrated on the broadcasting device, so that simultaneous power supply and data transmission of the broadcasting device by only using a single twisted pair 300 cable may be implemented, which reduces the use of a wire cable, and can reduce the total cost and construction difficulty of the device; in addition, PSE equipment and PSE equipment are electrically connected through twisted pair 300, so that interference received by audio signals in the transmission process can be effectively reduced, and stability of audio data transmission is improved. The power supply of the PSE device and the main control module is provided by a power supply module, and the power supply of the power supply module can be a device or a system for arbitrarily providing electric energy for a storage battery, a power grid and the like, and the utility model is not limited to the device or the system.
Referring to fig. 3, in some embodiments of the present utility model, the first protection unit 120 includes a first resistor R1 and a first switching tube; the first end of the first resistor R1 is electrically connected with the power supply module, and the second end of the first resistor R1 is electrically connected with the input end of the first switching tube; the controlled end of the first switching tube is electrically connected with the input end of the power supply control unit, and the output end of the first switching tube is electrically connected with the output end of the power supply control unit. Specifically, the first switching transistor in the first protection unit 120 may employ an N-channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET), and the first resistor R1 is a low drain-source on-resistance (RDS (on)), so that the design may ensure that the voltage of the power externally supplied to the PSE device is minimized to ensure stability and robustness of the voltage supply control unit 110U1 in use.
Referring to fig. 3, in some embodiments of the present utility model, the power supply apparatus 100 further includes a buffer unit 130; the buffer unit 130 includes a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, a second capacitor C2, and a second switching tube; the first end of the second resistor R2 is electrically connected with the power supply module, and the second end of the second resistor R2 is electrically connected with the power supply module, the buffer control end of the power supply control unit and the first end of the third resistor R3; the second end of the third resistor R3 is electrically connected with the first end of the first capacitor C1 and the controlled end of the second switching tube, and the second end of the first capacitor C1 is electrically connected with the first end of the second switching tube and the first end of the third resistor R3; the second end of the third resistor R3 is electrically connected with the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is electrically connected with the first end of the second capacitor C2; the second end of the second capacitor C2 is electrically connected with the output end of the power supply control unit; the first end of the second switching tube is electrically connected with the first end of the fourth resistor R4, and the second end of the second switching tube is electrically connected with the first end of the fifth resistor R5; the second terminal of the fifth resistor R5 is grounded. Specifically, the buffer unit 130 is configured to perform a buffering function on external power supply of the power supply module in detecting and classifying the power supply apparatus 100 and the power receiving apparatus 200; in the actual process of the PSE device and the PD device, the SWx pin on the power supply control unit 110U1 should not be used, so that the buffer unit 130 is disconnected, and the buffering function is lost to ensure the stability of power supply.
Referring to fig. 3, in some embodiments of the present utility model, the power supply apparatus 100 further includes a second protection unit 140; the second protection unit 140 includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a third capacitor C3, a third switching tube, and a fourth switching tube; the first end of the sixth resistor R6 is electrically connected with the input end of the circuit breaker, and the second end of the sixth resistor R6 is electrically connected with the first end of the third capacitor C3 and the controlled end of the third switching tube respectively; the second end of the third capacitor C3 is electrically connected with the output end of the power supply control unit 110U1 and the first end of the third switching tube respectively, and the second end of the third switching tube is electrically connected with the first end of the seventh resistor R7; the second end of the seventh resistor R7 is grounded; the output end of the power supply control unit 110U1 is also electrically connected with the first end of a fourth switching tube, and the second end of the fourth switching tube is electrically connected with the output end of the circuit breaker; the controlled end of the fourth switching tube is electrically connected with the first end of the eighth resistor R8; the second end of the eighth resistor R8 is electrically connected with the power module. Specifically, the second protection unit 140 is electrically connected to a low-voltage side circuit breaker, wherein SCCPIx is an input terminal of the circuit breaker, and SCCPOx is an output terminal of the circuit breaker. In the embodiment of the present utility model, the low-voltage side circuit breaker can protect the negative output terminal (OUTMx) of the power supply control unit 110U1 from the feedback fault and the ground fault in the non-isolated application.
Referring to fig. 4, in some embodiments of the present utility model, the voltage regulating unit includes a first voltage regulating circuit 220U3; the input end of the first voltage adjusting circuit 220U3 is electrically connected to the output end of the power receiving control unit, and the output end of the first voltage adjusting circuit 220U3 is electrically connected to the broadcasting functional unit. Specifically, the first voltage adjusting circuit 220U3 is a switching voltage regulator in the embodiment of the present utility model, and is capable of adjusting the voltage transmitted by the power receiving control unit to 5V voltage, and outputting the power receiving pin of an electrical element such as a control chip of the value broadcasting device, so as to provide power for the electrical element.
Referring to fig. 4, in some embodiments of the present utility model, the power receiving control unit includes a power receiving control chip 210U2 and a third protection unit 240; the third protection unit 240 includes a first diode, a second diode, and a fifth switching tube; anode terminals of the first diode and the second diode are respectively and electrically connected with an output terminal of the power supply control unit, and cathode terminals of the first diode and the second diode are respectively and electrically connected with an input terminal of the power receiving control chip 210U 2; the input end of the power receiving control chip 210U2 is also electrically connected with the first end of the fifth switching tube, the gate control end of the power receiving control chip 210U2 is electrically connected with the controlled end of the fifth switching tube, and the output end of the power receiving control chip 210U2 is electrically connected with the second end of the fifth switching tube; the output terminal of the power receiving control chip 210U2 is electrically connected to the voltage adjusting unit. Specifically, as shown in fig. 4, the power receiving control chip 210 is connected to the twisted pair 300 through the left dc+ and DC-ports in fig. 4, and further connected to the power supply control unit 110; the third protection unit 240 can reduce the influence of the surge on the power receiving control chip 210U2, and improve the stability and safety of the power receiving control chip 210U2 during operation.
Referring to fig. 4, in some embodiments of the present utility model, the power receiving apparatus 200 further includes a fourth protection unit 250; the fourth protection unit 250 includes a sixth switching tube, a seventh switching tube, an eighth switching tube, and a ninth switching tube; the first end of the sixth switching tube and the first end of the seventh switching tube are electrically connected with the detection port of the power receiving control chip 210U2, the second end of the sixth switching tube and the second end of the seventh switching tube are grounded, and the controlled end of the sixth switching tube and the controlled end of the seventh switching tube are electrically connected with the driving end of the pull-down door of the power receiving control chip 210U 2; the first end of the sixth switching tube and the first end of the seventh switching tube are also electrically connected with the output end of the power supply control unit; the first end of the eighth switching tube and the first end of the ninth switching tube are electrically connected with the output end of the power supply control unit, the second end of the eighth switching tube and the second end of the ninth switching tube are grounded, and the controlled end of the eighth switching tube and the controlled end of the ninth switching tube are electrically connected with the active grid driving end. Specifically, the fourth protection unit 250 can also reduce the influence of the surge on the power receiving control chip 210U2, and all the external switching tubes of the third protection unit 240 and the fourth protection unit 250 are preferably MOSFET tubes, so that the power loss can be reduced to the maximum extent, and the cost of the supply formed by the power supply apparatus 100 and the power receiving apparatus 200 can be optimized.
Referring to fig. 4, in some embodiments of the present utility model, the voltage regulating unit further includes a second voltage regulating circuit 230U4; the input end of the second voltage adjusting circuit 230U4 is electrically connected to the output end of the first voltage adjusting circuit 220U3, and the output end of the second voltage adjusting circuit 230U4 is electrically connected to the broadcasting functional unit. Specifically, the second voltage regulating circuit 230U4 can reduce the 5V voltage output by the switching voltage regulator to 3V3 to meet the power supply requirements of different electrical components of the broadcasting device.
Referring to fig. 5, in some embodiments of the present utility model, the first data exchange unit 150 includes a first network chip and a first connector, and the second data exchange unit 260 includes a second network chip and a second connector; the first network chip is electrically connected with the first connector, and the second network chip is electrically connected with the second connector; the first connector and the second connector are communicatively coupled by twisted pair 300. Specifically, in some embodiments of the present utility model, the first network chip and the second network chip are PHY chips, and the two chips are connected through a first connector and a second connector; the first network chip and the second network chip can realize the data transmission function between the main control module and the PD equipment through the twisted pair 300; the first connector and the second connector can be RJ45 type connectors; fig. 5 shows a schematic diagram of the connector RJ45 and the network chip LAN 8720A.
In a second aspect, an embodiment of the present utility model provides a broadcasting device, where the broadcasting device includes a PoDL power supply circuit of the broadcasting device according to any one of the embodiments of the foregoing aspects.
In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A PoDL power supply circuit for a broadcast device, comprising:
a main control module;
The power supply equipment comprises a power supply control unit, a first protection unit and a first data exchange unit; the controlled end of the power supply control unit is electrically connected with the main control module, the first protection unit is electrically connected with the input end of the power supply control unit, and the output end of the power supply control unit is electrically connected with the first data exchange unit; the first data exchange unit is in communication connection with the main control module;
The power receiving equipment comprises a power receiving control unit, a voltage regulating unit, a second data exchange unit and a broadcasting functional unit, wherein the input end of the power receiving control unit is electrically connected with the output end of the power supply control unit through a twisted pair; the output end of the power receiving control unit is electrically connected with the input end of the voltage regulating unit, and the output end of the voltage regulating unit is electrically connected with the broadcasting functional unit; the first data exchange unit is in communication connection with the second data exchange unit through the twisted pair; the second data exchange unit is in communication connection with the broadcasting functional unit; the power supply apparatus is configured to provide an operating power supply to the power receiving apparatus;
The power supply module is electrically connected with the main control module and the power supply equipment; and the power supply module is used for providing initial power supply for the main control module and the power supply equipment.
2. The PoDL supply circuit of claim 1, wherein the first protection unit includes a first resistor and a first switching tube; the first end of the first resistor is electrically connected with the power supply module, and the second end of the first resistor is electrically connected with the first end of the first switch tube; the controlled end of the first switching tube is electrically connected with the input end of the power supply control unit, and the second end of the first switching tube is electrically connected with the output end of the power supply control unit.
3. The PoDL power supply circuit of a broadcasting device according to claim 1, wherein said power supply device further comprises a buffer unit; the buffer unit comprises a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor and a second switch tube; the first end of the second resistor is electrically connected with the power module, and the second end of the second resistor is electrically connected with the power module, the buffer control end of the power supply control unit and the first end of the third resistor; the second end of the third resistor is electrically connected with the first end of the first capacitor and the controlled end of the second switching tube, and the second end of the first capacitor is electrically connected with the first end of the second switching tube and the first end of the third resistor; the second end of the third resistor is electrically connected with the first end of the fourth resistor, and the second end of the fourth resistor is electrically connected with the first end of the second capacitor; the second end of the second capacitor is electrically connected with the output end of the power supply control unit; the second end of the second switching tube is electrically connected with the first end of the fourth resistor, and the second end of the second switching tube is electrically connected with the first end of the fifth resistor; the second end of the fifth resistor is grounded.
4. The PoDL power supply circuit of a broadcasting device according to claim 1, wherein said power supply device further comprises a second protection unit; the second protection unit comprises a sixth resistor, a seventh resistor, an eighth resistor, a third capacitor, a third switching tube and a fourth switching tube; the first end of the sixth resistor is electrically connected with the input end of the circuit breaker, and the second end of the sixth resistor is electrically connected with the first end of the third capacitor and the controlled end of the third switching tube respectively; the second end of the third capacitor is electrically connected with the output end of the power supply control unit and the first end of the third switching tube respectively, and the second end of the third switching tube is electrically connected with the first end of the seventh resistor; the second end of the seventh resistor is grounded; the output end of the power supply control unit is also electrically connected with the first end of the fourth switching tube, and the second end of the fourth switching tube is electrically connected with the output end of the circuit breaker; the controlled end of the fourth switching tube is electrically connected with the first end of the eighth resistor; the second end of the eighth resistor is electrically connected with the power supply module.
5. The PoDL power supply circuit of a broadcasting device according to claim 1, wherein said power reception control unit includes a power reception control chip and a third protection unit; the third protection unit comprises a first diode, a second diode and a fifth switching tube; the anode ends of the first diode and the second diode are respectively and electrically connected with the output end of the power supply control unit, and the cathode ends of the first diode and the second diode are respectively and electrically connected with the input end of the power receiving control chip; the input end of the power receiving control chip is also electrically connected with the first end of the fifth switching tube, the gate control end of the power receiving control chip is electrically connected with the controlled end of the fifth switching tube, and the output end of the power receiving control chip is electrically connected with the second end of the fifth switching tube; the output end of the power receiving control chip is electrically connected with the voltage regulating unit.
6. The PoDL power supply circuit of the broadcasting apparatus of claim 5, wherein the powered apparatus further comprises a fourth protection unit; the fourth protection unit comprises a sixth switching tube, a seventh switching tube, an eighth switching tube and a ninth switching tube; the first end of the sixth switching tube and the first end of the seventh switching tube are electrically connected with the detection port of the power receiving control chip, the second end of the sixth switching tube and the second end of the seventh switching tube are grounded, and the controlled end of the sixth switching tube and the controlled end of the seventh switching tube are electrically connected with the driving end of the pull-down door of the power receiving control chip; the first end of the sixth switching tube and the first end of the seventh switching tube are also electrically connected with the output end of the power supply control unit; the first end of the eighth switching tube and the first end of the ninth switching tube are electrically connected with the output end of the power supply control unit, the second end of the eighth switching tube and the second end of the ninth switching tube are grounded, and the controlled end of the eighth switching tube and the controlled end of the ninth switching tube are electrically connected with the active grid driving end.
7. The PoDL supply circuit of claim 1, wherein said voltage regulation unit comprises a first voltage regulation circuit; the input end of the first voltage regulating circuit is electrically connected with the output end of the power receiving control unit, and the output end of the first voltage regulating circuit is electrically connected with the broadcasting functional unit.
8. The PoDL supply circuit of claim 7, wherein said voltage regulating unit further comprises a second voltage regulating circuit; the input end of the second voltage regulating circuit is electrically connected with the output end of the first voltage regulating circuit, and the output end of the second voltage regulating circuit is electrically connected with the broadcasting functional unit.
9. The PoDL supply circuit of claim 1, wherein said first data exchange unit includes a first network chip and a first connector, and said second data exchange unit includes a second network chip and a second connector; the first network chip is electrically connected with the first connector, and the second network chip is electrically connected with the second connector; the first connector and the second connector are communicatively connected by the twisted pair.
10. A broadcasting device comprising the PoDL supply circuit of the broadcasting device of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420370268.3U CN221806990U (en) | 2024-02-27 | 2024-02-27 | PoDL power supply circuit for broadcasting equipment and broadcasting equipment having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420370268.3U CN221806990U (en) | 2024-02-27 | 2024-02-27 | PoDL power supply circuit for broadcasting equipment and broadcasting equipment having the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221806990U true CN221806990U (en) | 2024-10-01 |
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ID=92878109
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420370268.3U Active CN221806990U (en) | 2024-02-27 | 2024-02-27 | PoDL power supply circuit for broadcasting equipment and broadcasting equipment having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221806990U (en) |
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2024
- 2024-02-27 CN CN202420370268.3U patent/CN221806990U/en active Active
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