Control Circuit of Locomotive Converter
A technology for control circuits and converters, applied in locomotives, electrical program control, emergency protection circuit devices, etc., can solve the problems of low reliability and large space occupation of control circuits, and achieve small space occupation, simplified structure, and response speed. quick effect
Active Publication Date: 2015-11-25
CHINA CNR CORPORATION
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Problems solved by technology
[0005] The invention provides a control circuit of a locomotive converter, which is used to solve the problems of low reliability and large occupied space of the control circuit in the prior art
Method used
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Embodiment Construction
[0017] figure 1 A schematic structural diagram of a control circuit of a locomotive converter provided by an embodiment of the present invention is shown, as shown in figure 1 As shown, the control circuit of the locomotive converter in this embodiment includes: a first level shifter 11 , a field programmable gate array 12 , a central processing unit 13 and a second level shifter 14 .
[0018] Wherein, the input terminal of the first level shifter 11 is connected to the acquisition terminal of the locomotive converter 10, and is used for electrically converting the state quantity (such as current signal, voltage signal, speed signal and temperature signal, etc.) collected by the locomotive converter Level conversion, so that the high-level state quantity is converted into a low-level state quantity that can be processed by the field programmable gate array. The output end of the first level shifter 11 is connected to the first input end of the field programmable gate array 12...
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The invention discloses a control circuit of a locomotive converter. The control circuit comprises a first level shifter converting a high level of quantity of state of the locomotive converter to a low level, a field-programmable gate array processing the quantity of state according to processing signals, a central processing unit issuing the processing signals to the field-programmable gate array, and a second level shifter converting a low level of control signals outputted by the field-programmable gate array to a high level, wherein an input end of the first level shifter is connected with the locomotive converter; a first input end of the field-programmable gate array is connected with an output end of the first level shifter, and a second input end of the field-programmable gate array is connected with an output end of the central processing unit; an output end of the field-programmable gate array is connected with an input end of the second level shifter; and an output end of the second level shifter is connected with the locomotive converter. The control circuit is used for solving problems of low reliability and large occupied space of a control circuit in the prior art.
Description
technical field [0001] The invention relates to a circuit structure, in particular to a control circuit of a locomotive converter. Background technique [0002] The control circuit of the locomotive converter is the core control equipment of the current locomotive converter, and it is installed in the control system of the locomotive traction power carriage. The control circuit of the locomotive converter in the prior art includes a plurality of discrete circuit elements such as an acquisition unit, a first processing chip, a second processing chip, and a central processing unit. [0003] Wherein, the acquisition unit is used to acquire the state quantity of the locomotive converter, and the state quantity includes: speed signal, temperature signal, voltage signal and current signal, etc.; the acquisition unit sends the collected state quantity to the first processing chip, so that the second A processing chip regulates the state quantity according to the processing signal ...
Claims
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IPC IPC(8): H02H7/10B61C17/00G05B19/04
Inventor 石小磊
Owner CHINA CNR CORPORATION