Multifunctional isolation signal processing circuit with single set of interfaces
A signal processing circuit, multi-functional technology, applied in the direction of logic circuit connection/interface layout, etc., can solve the problems of damage to key components, excess high-current signals on the interface, and increase in the size of the controller and module combination, to solve the problem of large-scale Effect
Pending Publication Date: 2021-02-12
CSSC POWER INST CO LTD
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[0004] Although this modular circuit design can control the signal requirements of the system, the simple combination of single-function modules often leads to excess interfaces and damage to key components by high-current signals. At the same time, the size of the controller and module combination will also increase. Suitable for production sites such as vehicles and ships with limited space
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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0040] The embodiment of the present invention provides a single-set interface multifunctional isolation signal processing circuit, figure 1 It is a schematic structural diagram of a multi-function isolation signal processing circuit with a single socket interface provided by an embodiment of the present invention. see figure 1 , the single socket interface multifunctional isolation signal processing circuit includes: a power port 101, a first signal port 102, a second signal port 103 and a ground port 104; a pow...
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The invention discloses a multifunctional isolation signal processing circuit with a single set of interfaces. The multifunctional isolation signal processing circuit comprises: a power port, a firstsignal port, a second signal port and a grounding port; a power supply which is connected with the power supply port; a signal processing circuit, a first resistor, a first switch, a second switch anda third switch, wherein the signal processing circuit comprises a first input end and a second input end, the first switch and the first resistor are connected in series between the first input end and the second input end of the signal processing circuit, the second switch is connected between the first signal port and the second input end of the signal processing circuit, and the third switch is connected between the second signal port and the second input end of the signal processing circuit; a controller which is connected with the output end of the signal processing circuit and controlsthe first switch, the second switch and the third switch to be connected or disconnected. According to the multifunctional isolation signal processing circuit with the single set of interfaces, the problems that a multifunctional signal processing circuit module is large in size and has multiple interfaces are solved, and the effects of miniaturization and simplification of the circuit module areachieved.
Description
technical field [0001] The embodiment of the present invention relates to the field of automatic control, in particular to a single-set interface multi-function isolation signal processing circuit. Background technique [0002] In the industrial production process, the premise of realizing automatic control is to convert physical quantities such as process parameters, working condition logic, and equipment operation status of the industrial production process into electrical signals or logical quantities that can be recognized by computers through sensors or transmitters. The automatic controller used in the control system, especially the marine controller, often needs to collect or output a variety of signals when in use, such as: millivolt (mV) signal, 0~5V voltage signal, 1~5V voltage signal, 0~10mA current signal , 4 ~ 20mA current signal, resistance signal. [0003] In order to take into account multiple input and output requirements in the control system and meet the ...
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IPC IPC(8): H03K19/0175
CPCH03K19/0175
Inventor 柯少卿李韬
Owner CSSC POWER INST CO LTD