Low-voltage direct-current interface device
An interface device, low-voltage DC technology, applied in the direction of DC network circuit devices, circuit devices, output power conversion devices, etc., can solve problems such as cost increase, power consumption area dispersion, system efficiency reduction, etc., to improve utilization, increase Flexibility, high system efficiency
Pending Publication Date: 2022-01-04
SHENZHEN INST OF BUILDING RES
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Problems solved by technology
In the existing new energy technology demonstration applications, such as photovoltaic power generation, energy storage batteries and other input sources are all DC, if they are converted to AC after inversion and connected to the existing AC power distribution system, the system efficiency will decrease
Moreover, indoor electrical equipment has the characteristics of low power and scattered power consumption areas, and has high requirements for the use and control of input sources. Adding specific interfaces according to the particularity of the electrical appliances used can improve the existing problems, but the cost will increase a lot, and There is uncertainty in the use of electrical appliances, and specifying a specific interface reduces the flexibility of use
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[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] see figure 1 , the present invention provides a technical solution: a low-voltage direct current interface device with 1 input and 5 outputs. There is a control chip TM320F28034, which receives current signals CS1~CS5 for 5-way current measurement, and controls 5-way circuit opening and closing signals Input1~Input5. The input is DC 48V, and the input voltage is differential input, that is, 48V and 0V. There are 5 outputs, the output is DC 48V, the out...
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The invention discloses a low-voltage direct-current interface device, which is provided with one path of input and five paths of output, and is provided with a control chip TM320F28034 for receiving current signals CS1-CS5 of five paths of current measurement and controlling on and off signals Input 1-Input 5 of five paths of circuits, wherein the input is direct current 48V, the input voltage is differential input, namely, 48V and 0V, the output is provided with five paths, the output is direct current 48V, the output voltage is differential output, namely, 48V and Output1, 48V and Output2, 48V and Output3, 48V and Output4, and 48V and Output5, the 48V is a positive electrode, the Output1 to Output5 are negative electrodes, a control system adopts the chip TM320F28034, a power supply is 3.3 V, the input\output voltage range of a chip pin is 0-3.3 V, and embedded software can be edited. According to the invention, the utilization rate of the indoor power supply can be improved, and the control flexibility of the power supply is improved.
Description
technical field [0001] The invention relates to the technical field of DC interfaces, in particular to a low-voltage DC interface device. Background technique [0002] At present, the main types of indoor electrical equipment include LED lighting, computers, mobile phones and other electrical equipment. The AC 220V power is converted into low-voltage DC (<60V) through a dedicated adapter for use. In the existing new energy technology demonstration applications, such as photovoltaic power generation, energy storage batteries and other input sources are all DC, if they are converted to AC after inversion and connected to the existing AC power distribution system, the system efficiency will decrease. Moreover, indoor electrical equipment has the characteristics of low power and scattered power consumption areas, and has high requirements for the use and control of input sources. Adding specific interfaces according to the particularity of the electrical appliances used can i...
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IPC IPC(8): H02J1/00H02M3/00
CPCH02J1/00H02M3/00
Inventor 李雨桐郝斌潘文宇康靖李叶茂
Owner SHENZHEN INST OF BUILDING RES